Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

30 files changed, 10350 insertions, 0 deletions

diff --git a/kernel/arch/mips/alchemy/Kconfig b/kernel/arch/mips/alchemy/Kconfig
new file mode 100644
index 000000000..b9628983d
--- /dev/null
+++ b/kernel/arch/mips/alchemy/Kconfig
@@ -0,0 +1,53 @@
+# au1000-style gpio and interrupt controllers
+config ALCHEMY_GPIOINT_AU1000
+	bool
+
+# au1300-style GPIO/INT controller
+config ALCHEMY_GPIOINT_AU1300
+	bool
+
+# select this in your board config if you don't want to use the gpio
+# namespace as documented in the manuals.  In this case however you need
+# to create the necessary gpio_* functions in your board code/headers!
+# see arch/mips/include/asm/mach-au1x00/gpio.h   for more information.
+config ALCHEMY_GPIO_INDIRECT
+	def_bool n
+
+choice
+	prompt "Machine type"
+	depends on MIPS_ALCHEMY
+	default MIPS_DB1XXX
+
+config MIPS_MTX1
+	bool "4G Systems MTX-1 board"
+	select HW_HAS_PCI
+	select ALCHEMY_GPIOINT_AU1000
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_HAS_EARLY_PRINTK
+
+config MIPS_DB1XXX
+	bool "Alchemy DB1XXX / PB1XXX boards"
+	select ARCH_REQUIRE_GPIOLIB
+	select HW_HAS_PCI
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_HAS_EARLY_PRINTK
+	help
+	  Select this option if you have one of the following Alchemy
+	  development boards:  DB1000 DB1500 DB1100 DB1550 DB1200 DB1300
+			       PB1500 PB1100 PB1550 PB1200
+	  Board type is autodetected during boot.
+
+config MIPS_XXS1500
+	bool "MyCable XXS1500 board"
+	select ALCHEMY_GPIOINT_AU1000
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_HAS_EARLY_PRINTK
+
+config MIPS_GPR
+	bool "Trapeze ITS GPR board"
+	select ALCHEMY_GPIOINT_AU1000
+	select HW_HAS_PCI
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_HAS_EARLY_PRINTK
+
+endchoice
diff --git a/kernel/arch/mips/alchemy/Makefile b/kernel/arch/mips/alchemy/Makefile
new file mode 100644
index 000000000..aac3b179b
--- /dev/null
+++ b/kernel/arch/mips/alchemy/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_MIPS_GPR) += board-gpr.o
+obj-$(CONFIG_MIPS_MTX1) += board-mtx1.o
+obj-$(CONFIG_MIPS_XXS1500) += board-xxs1500.o
diff --git a/kernel/arch/mips/alchemy/Platform b/kernel/arch/mips/alchemy/Platform
new file mode 100644
index 000000000..33c9da3b0
--- /dev/null
+++ b/kernel/arch/mips/alchemy/Platform
@@ -0,0 +1,38 @@
+#
+# Core Alchemy code
+#
+platform-$(CONFIG_MIPS_ALCHEMY) += alchemy/common/
+
+
+#
+# AMD Alchemy Db1000/Db1500/Pb1500/Db1100/Pb1100
+#             Db1550/Pb1550/Db1200/Pb1200/Db1300
+#
+platform-$(CONFIG_MIPS_DB1XXX)	+= alchemy/devboards/
+cflags-$(CONFIG_MIPS_DB1XXX)	+= -I$(srctree)/arch/mips/include/asm/mach-db1x00
+load-$(CONFIG_MIPS_DB1XXX)	+= 0xffffffff80100000
+
+#
+# 4G-Systems MTX-1 "MeshCube" wireless router
+#
+platform-$(CONFIG_MIPS_MTX1)	+= alchemy/
+load-$(CONFIG_MIPS_MTX1)	+= 0xffffffff80100000
+
+#
+# MyCable eval board
+#
+platform-$(CONFIG_MIPS_XXS1500) += alchemy/
+load-$(CONFIG_MIPS_XXS1500)	+= 0xffffffff80100000
+
+#
+# Trapeze ITS GRP board
+#
+platform-$(CONFIG_MIPS_GPR)	+= alchemy/
+load-$(CONFIG_MIPS_GPR)		+= 0xffffffff80100000
+
+# boards can specify their own <gpio.h> in one of their include dirs.
+# If they do, placing this line here at the end will make sure the
+# compiler picks the board one.	 If they don't, it will make sure
+# the alchemy generic gpio header is picked up.
+
+cflags-$(CONFIG_MIPS_ALCHEMY)	+= -I$(srctree)/arch/mips/include/asm/mach-au1x00
diff --git a/kernel/arch/mips/alchemy/board-gpr.c b/kernel/arch/mips/alchemy/board-gpr.c
new file mode 100644
index 000000000..acf9a2a37
--- /dev/null
+++ b/kernel/arch/mips/alchemy/board-gpr.c
@@ -0,0 +1,302 @@
+/*
+ * GPR board platform device registration (Au1550)
+ *
+ * Copyright (C) 2010 Wolfgang Grandegger <wg@denx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/i2c-gpio.h>
+#include <asm/bootinfo.h>
+#include <asm/idle.h>
+#include <asm/reboot.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <prom.h>
+
+const char *get_system_type(void)
+{
+	return "GPR";
+}
+
+void __init prom_init(void)
+{
+	unsigned char *memsize_str;
+	unsigned long memsize;
+
+	prom_argc = fw_arg0;
+	prom_argv = (char **)fw_arg1;
+	prom_envp = (char **)fw_arg2;
+
+	prom_init_cmdline();
+
+	memsize_str = prom_getenv("memsize");
+	if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
+		memsize = 0x04000000;
+	add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
+
+void prom_putchar(unsigned char c)
+{
+	alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
+}
+
+static void gpr_reset(char *c)
+{
+	/* switch System-LED to orange (red# and green# on) */
+	alchemy_gpio_direction_output(4, 0);
+	alchemy_gpio_direction_output(5, 0);
+
+	/* trigger watchdog to reset board in 200ms */
+	printk(KERN_EMERG "Triggering watchdog soft reset...\n");
+	raw_local_irq_disable();
+	alchemy_gpio_direction_output(1, 0);
+	udelay(1);
+	alchemy_gpio_set_value(1, 1);
+	while (1)
+		cpu_wait();
+}
+
+static void gpr_power_off(void)
+{
+	while (1)
+		cpu_wait();
+}
+
+void __init board_setup(void)
+{
+	printk(KERN_INFO "Trapeze ITS GPR board\n");
+
+	pm_power_off = gpr_power_off;
+	_machine_halt = gpr_power_off;
+	_machine_restart = gpr_reset;
+
+	/* Enable UART1/3 */
+	alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
+	alchemy_uart_enable(AU1000_UART1_PHYS_ADDR);
+
+	/* Take away Reset of UMTS-card */
+	alchemy_gpio_direction_output(215, 1);
+}
+
+/*
+ * Watchdog
+ */
+static struct resource gpr_wdt_resource[] = {
+	[0] = {
+		.start	= 1,
+		.end	= 1,
+		.name	= "gpr-adm6320-wdt",
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device gpr_wdt_device = {
+	.name = "adm6320-wdt",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(gpr_wdt_resource),
+	.resource = gpr_wdt_resource,
+};
+
+/*
+ * FLASH
+ *
+ * 0x00000000-0x00200000 : "kernel"
+ * 0x00200000-0x00a00000 : "rootfs"
+ * 0x01d00000-0x01f00000 : "config"
+ * 0x01c00000-0x01d00000 : "yamon"
+ * 0x01d00000-0x01d40000 : "yamon env vars"
+ * 0x00000000-0x00a00000 : "kernel+rootfs"
+ */
+static struct mtd_partition gpr_mtd_partitions[] = {
+	{
+		.name	= "kernel",
+		.size	= 0x00200000,
+		.offset = 0,
+	},
+	{
+		.name	= "rootfs",
+		.size	= 0x00800000,
+		.offset = MTDPART_OFS_APPEND,
+		.mask_flags = MTD_WRITEABLE,
+	},
+	{
+		.name	= "config",
+		.size	= 0x00200000,
+		.offset = 0x01d00000,
+	},
+	{
+		.name	= "yamon",
+		.size	= 0x00100000,
+		.offset = 0x01c00000,
+	},
+	{
+		.name	= "yamon env vars",
+		.size	= 0x00040000,
+		.offset = MTDPART_OFS_APPEND,
+	},
+	{
+		.name	= "kernel+rootfs",
+		.size	= 0x00a00000,
+		.offset = 0,
+	},
+};
+
+static struct physmap_flash_data gpr_flash_data = {
+	.width		= 4,
+	.nr_parts	= ARRAY_SIZE(gpr_mtd_partitions),
+	.parts		= gpr_mtd_partitions,
+};
+
+static struct resource gpr_mtd_resource = {
+	.start	= 0x1e000000,
+	.end	= 0x1fffffff,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device gpr_mtd_device = {
+	.name		= "physmap-flash",
+	.dev		= {
+		.platform_data	= &gpr_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &gpr_mtd_resource,
+};
+
+/*
+ * LEDs
+ */
+static struct gpio_led gpr_gpio_leds[] = {
+	{	/* green */
+		.name			= "gpr:green",
+		.gpio			= 4,
+		.active_low		= 1,
+	},
+	{	/* red */
+		.name			= "gpr:red",
+		.gpio			= 5,
+		.active_low		= 1,
+	}
+};
+
+static struct gpio_led_platform_data gpr_led_data = {
+	.num_leds = ARRAY_SIZE(gpr_gpio_leds),
+	.leds = gpr_gpio_leds,
+};
+
+static struct platform_device gpr_led_devices = {
+	.name = "leds-gpio",
+	.id = -1,
+	.dev = {
+		.platform_data = &gpr_led_data,
+	}
+};
+
+/*
+ * I2C
+ */
+static struct i2c_gpio_platform_data gpr_i2c_data = {
+	.sda_pin		= 209,
+	.sda_is_open_drain	= 1,
+	.scl_pin		= 210,
+	.scl_is_open_drain	= 1,
+	.udelay			= 2,		/* ~100 kHz */
+	.timeout		= HZ,
+};
+
+static struct platform_device gpr_i2c_device = {
+	.name			= "i2c-gpio",
+	.id			= -1,
+	.dev.platform_data	= &gpr_i2c_data,
+};
+
+static struct i2c_board_info gpr_i2c_info[] __initdata = {
+	{
+		I2C_BOARD_INFO("lm83", 0x18),
+		.type = "lm83"
+	}
+};
+
+
+
+static struct resource alchemy_pci_host_res[] = {
+	[0] = {
+		.start	= AU1500_PCI_PHYS_ADDR,
+		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static int gpr_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+	if ((slot == 0) && (pin == 1))
+		return AU1550_PCI_INTA;
+	else if ((slot == 0) && (pin == 2))
+		return AU1550_PCI_INTB;
+
+	return 0xff;
+}
+
+static struct alchemy_pci_platdata gpr_pci_pd = {
+	.board_map_irq	= gpr_map_pci_irq,
+	.pci_cfg_set	= PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
+			  PCI_CONFIG_CH |
+#if defined(__MIPSEB__)
+			  PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
+#else
+			  0,
+#endif
+};
+
+static struct platform_device gpr_pci_host_dev = {
+	.dev.platform_data = &gpr_pci_pd,
+	.name		= "alchemy-pci",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
+	.resource	= alchemy_pci_host_res,
+};
+
+static struct platform_device *gpr_devices[] __initdata = {
+	&gpr_wdt_device,
+	&gpr_mtd_device,
+	&gpr_i2c_device,
+	&gpr_led_devices,
+};
+
+static int __init gpr_pci_init(void)
+{
+	return platform_device_register(&gpr_pci_host_dev);
+}
+/* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
+arch_initcall(gpr_pci_init);
+
+
+static int __init gpr_dev_init(void)
+{
+	i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info));
+
+	return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices));
+}
+device_initcall(gpr_dev_init);
diff --git a/kernel/arch/mips/alchemy/board-mtx1.c b/kernel/arch/mips/alchemy/board-mtx1.c
new file mode 100644
index 000000000..1e3b10238
--- /dev/null
+++ b/kernel/arch/mips/alchemy/board-mtx1.c
@@ -0,0 +1,313 @@
+/*
+ * MTX-1 platform devices registration (Au1500)
+ *
+ * Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <mtd/mtd-abi.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1xxx_eth.h>
+#include <prom.h>
+
+const char *get_system_type(void)
+{
+	return "MTX-1";
+}
+
+void __init prom_init(void)
+{
+	unsigned char *memsize_str;
+	unsigned long memsize;
+
+	prom_argc = fw_arg0;
+	prom_argv = (char **)fw_arg1;
+	prom_envp = (char **)fw_arg2;
+
+	prom_init_cmdline();
+
+	memsize_str = prom_getenv("memsize");
+	if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
+		memsize = 0x04000000;
+	add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
+
+void prom_putchar(unsigned char c)
+{
+	alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
+}
+
+static void mtx1_reset(char *c)
+{
+	/* Jump to the reset vector */
+	__asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
+}
+
+static void mtx1_power_off(void)
+{
+	while (1)
+		asm volatile (
+		"	.set	mips32					\n"
+		"	wait						\n"
+		"	.set	mips0					\n");
+}
+
+void __init board_setup(void)
+{
+#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
+	/* Enable USB power switch */
+	alchemy_gpio_direction_output(204, 0);
+#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
+
+	/* Initialize sys_pinfunc */
+	alchemy_wrsys(SYS_PF_NI2, AU1000_SYS_PINFUNC);
+
+	/* Initialize GPIO */
+	alchemy_wrsys(~0, AU1000_SYS_TRIOUTCLR);
+	alchemy_gpio_direction_output(0, 0);	/* Disable M66EN (PCI 66MHz) */
+	alchemy_gpio_direction_output(3, 1);	/* Disable PCI CLKRUN# */
+	alchemy_gpio_direction_output(1, 1);	/* Enable EXT_IO3 */
+	alchemy_gpio_direction_output(5, 0);	/* Disable eth PHY TX_ER */
+
+	/* Enable LED and set it to green */
+	alchemy_gpio_direction_output(211, 1);	/* green on */
+	alchemy_gpio_direction_output(212, 0);	/* red off */
+
+	pm_power_off = mtx1_power_off;
+	_machine_halt = mtx1_power_off;
+	_machine_restart = mtx1_reset;
+
+	printk(KERN_INFO "4G Systems MTX-1 Board\n");
+}
+
+/******************************************************************************/
+
+static struct gpio_keys_button mtx1_gpio_button[] = {
+	{
+		.gpio = 207,
+		.code = BTN_0,
+		.desc = "System button",
+	}
+};
+
+static struct gpio_keys_platform_data mtx1_buttons_data = {
+	.buttons = mtx1_gpio_button,
+	.nbuttons = ARRAY_SIZE(mtx1_gpio_button),
+};
+
+static struct platform_device mtx1_button = {
+	.name = "gpio-keys",
+	.id = -1,
+	.dev = {
+		.platform_data = &mtx1_buttons_data,
+	}
+};
+
+static struct resource mtx1_wdt_res[] = {
+	[0] = {
+		.start	= 215,
+		.end	= 215,
+		.name	= "mtx1-wdt-gpio",
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device mtx1_wdt = {
+	.name = "mtx1-wdt",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(mtx1_wdt_res),
+	.resource = mtx1_wdt_res,
+};
+
+static struct gpio_led default_leds[] = {
+	{
+		.name	= "mtx1:green",
+		.gpio = 211,
+	}, {
+		.name = "mtx1:red",
+		.gpio = 212,
+	},
+};
+
+static struct gpio_led_platform_data mtx1_led_data = {
+	.num_leds = ARRAY_SIZE(default_leds),
+	.leds = default_leds,
+};
+
+static struct platform_device mtx1_gpio_leds = {
+	.name = "leds-gpio",
+	.id = -1,
+	.dev = {
+		.platform_data = &mtx1_led_data,
+	}
+};
+
+static struct mtd_partition mtx1_mtd_partitions[] = {
+	{
+		.name	= "filesystem",
+		.size	= 0x01C00000,
+		.offset = 0,
+	},
+	{
+		.name	= "yamon",
+		.size	= 0x00100000,
+		.offset = MTDPART_OFS_APPEND,
+		.mask_flags = MTD_WRITEABLE,
+	},
+	{
+		.name	= "kernel",
+		.size	= 0x002c0000,
+		.offset = MTDPART_OFS_APPEND,
+	},
+	{
+		.name	= "yamon env",
+		.size	= 0x00040000,
+		.offset = MTDPART_OFS_APPEND,
+	},
+};
+
+static struct physmap_flash_data mtx1_flash_data = {
+	.width		= 4,
+	.nr_parts	= 4,
+	.parts		= mtx1_mtd_partitions,
+};
+
+static struct resource mtx1_mtd_resource = {
+	.start	= 0x1e000000,
+	.end	= 0x1fffffff,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device mtx1_mtd = {
+	.name		= "physmap-flash",
+	.dev		= {
+		.platform_data	= &mtx1_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &mtx1_mtd_resource,
+};
+
+static struct resource alchemy_pci_host_res[] = {
+	[0] = {
+		.start	= AU1500_PCI_PHYS_ADDR,
+		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static int mtx1_pci_idsel(unsigned int devsel, int assert)
+{
+	/* This function is only necessary to support a proprietary Cardbus
+	 * adapter on the mtx-1 "singleboard" variant. It triggers a custom
+	 * logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals.
+	 */
+	udelay(1);
+
+	if (assert && devsel != 0)
+		/* Suppress signal to Cardbus */
+		alchemy_gpio_set_value(1, 0);	/* set EXT_IO3 OFF */
+	else
+		alchemy_gpio_set_value(1, 1);	/* set EXT_IO3 ON */
+
+	udelay(1);
+	return 1;
+}
+
+static const char mtx1_irqtab[][5] = {
+	[0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 00 - AdapterA-Slot0 (top) */
+	[1] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 01 - AdapterA-Slot1 (bottom) */
+	[2] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 02 - AdapterB-Slot0 (top) */
+	[3] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 03 - AdapterB-Slot1 (bottom) */
+	[4] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 04 - AdapterC-Slot0 (top) */
+	[5] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 05 - AdapterC-Slot1 (bottom) */
+	[6] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 06 - AdapterD-Slot0 (top) */
+	[7] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 07 - AdapterD-Slot1 (bottom) */
+};
+
+static int mtx1_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+	return mtx1_irqtab[slot][pin];
+}
+
+static struct alchemy_pci_platdata mtx1_pci_pd = {
+	.board_map_irq	 = mtx1_map_pci_irq,
+	.board_pci_idsel = mtx1_pci_idsel,
+	.pci_cfg_set	 = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
+			   PCI_CONFIG_CH |
+#if defined(__MIPSEB__)
+			   PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
+#else
+			   0,
+#endif
+};
+
+static struct platform_device mtx1_pci_host = {
+	.dev.platform_data = &mtx1_pci_pd,
+	.name		= "alchemy-pci",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
+	.resource	= alchemy_pci_host_res,
+};
+
+static struct platform_device *mtx1_devs[] __initdata = {
+	&mtx1_pci_host,
+	&mtx1_gpio_leds,
+	&mtx1_wdt,
+	&mtx1_button,
+	&mtx1_mtd,
+};
+
+static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
+	.phy_search_highest_addr	= 1,
+	.phy1_search_mac0		= 1,
+};
+
+static int __init mtx1_register_devices(void)
+{
+	int rc;
+
+	irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
+	irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
+
+	au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);
+
+	rc = gpio_request(mtx1_gpio_button[0].gpio,
+					mtx1_gpio_button[0].desc);
+	if (rc < 0) {
+		printk(KERN_INFO "mtx1: failed to request %d\n",
+					mtx1_gpio_button[0].gpio);
+		goto out;
+	}
+	gpio_direction_input(mtx1_gpio_button[0].gpio);
+out:
+	return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
+}
+arch_initcall(mtx1_register_devices);
diff --git a/kernel/arch/mips/alchemy/board-xxs1500.c b/kernel/arch/mips/alchemy/board-xxs1500.c
new file mode 100644
index 000000000..0fc53e08a
--- /dev/null
+++ b/kernel/arch/mips/alchemy/board-xxs1500.c
@@ -0,0 +1,154 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ *	MyCable XXS1500 board support
+ *
+ * Copyright 2003, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <prom.h>
+
+const char *get_system_type(void)
+{
+	return "XXS1500";
+}
+
+void __init prom_init(void)
+{
+	unsigned char *memsize_str;
+	unsigned long memsize;
+
+	prom_argc = fw_arg0;
+	prom_argv = (char **)fw_arg1;
+	prom_envp = (char **)fw_arg2;
+
+	prom_init_cmdline();
+
+	memsize_str = prom_getenv("memsize");
+	if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
+		memsize = 0x04000000;
+
+	add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
+
+void prom_putchar(unsigned char c)
+{
+	alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
+}
+
+static void xxs1500_reset(char *c)
+{
+	/* Jump to the reset vector */
+	__asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
+}
+
+static void xxs1500_power_off(void)
+{
+	while (1)
+		asm volatile (
+		"	.set	mips32					\n"
+		"	wait						\n"
+		"	.set	mips0					\n");
+}
+
+void __init board_setup(void)
+{
+	u32 pin_func;
+
+	pm_power_off = xxs1500_power_off;
+	_machine_halt = xxs1500_power_off;
+	_machine_restart = xxs1500_reset;
+
+	alchemy_gpio1_input_enable();
+	alchemy_gpio2_enable();
+
+	/* Set multiple use pins (UART3/GPIO) to UART (it's used as UART too) */
+	pin_func  = alchemy_rdsys(AU1000_SYS_PINFUNC) & ~SYS_PF_UR3;
+	pin_func |= SYS_PF_UR3;
+	alchemy_wrsys(pin_func, AU1000_SYS_PINFUNC);
+
+	/* Enable UART */
+	alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
+	/* Enable DTR (MCR bit 0) = USB power up */
+	__raw_writel(1, (void __iomem *)KSEG1ADDR(AU1000_UART3_PHYS_ADDR + 0x18));
+	wmb();
+}
+
+/******************************************************************************/
+
+static struct resource xxs1500_pcmcia_res[] = {
+	{
+		.name	= "pcmcia-io",
+		.flags	= IORESOURCE_MEM,
+		.start	= AU1000_PCMCIA_IO_PHYS_ADDR,
+		.end	= AU1000_PCMCIA_IO_PHYS_ADDR + 0x000400000 - 1,
+	},
+	{
+		.name	= "pcmcia-attr",
+		.flags	= IORESOURCE_MEM,
+		.start	= AU1000_PCMCIA_ATTR_PHYS_ADDR,
+		.end	= AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
+	},
+	{
+		.name	= "pcmcia-mem",
+		.flags	= IORESOURCE_MEM,
+		.start	= AU1000_PCMCIA_MEM_PHYS_ADDR,
+		.end	= AU1000_PCMCIA_MEM_PHYS_ADDR + 0x000400000 - 1,
+	},
+};
+
+static struct platform_device xxs1500_pcmcia_dev = {
+	.name		= "xxs1500_pcmcia",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(xxs1500_pcmcia_res),
+	.resource	= xxs1500_pcmcia_res,
+};
+
+static struct platform_device *xxs1500_devs[] __initdata = {
+	&xxs1500_pcmcia_dev,
+};
+
+static int __init xxs1500_dev_init(void)
+{
+	irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
+	irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO207_INT, IRQ_TYPE_LEVEL_LOW);
+
+	irq_set_irq_type(AU1500_GPIO0_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO1_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO2_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO3_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO4_INT, IRQ_TYPE_LEVEL_LOW); /* CF irq */
+	irq_set_irq_type(AU1500_GPIO5_INT, IRQ_TYPE_LEVEL_LOW);
+
+	return platform_add_devices(xxs1500_devs,
+				    ARRAY_SIZE(xxs1500_devs));
+}
+device_initcall(xxs1500_dev_init);
diff --git a/kernel/arch/mips/alchemy/common/Makefile b/kernel/arch/mips/alchemy/common/Makefile
new file mode 100644
index 000000000..f64744f3b
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/Makefile
@@ -0,0 +1,14 @@
+#
+#  Copyright 2000, 2008 MontaVista Software Inc.
+#  Author: MontaVista Software, Inc. <source@mvista.com>
+#
+# Makefile for the Alchemy Au1xx0 CPUs, generic files.
+#
+
+obj-y += prom.o time.o clock.o platform.o power.o \
+	 setup.o sleeper.o dma.o dbdma.o vss.o irq.o usb.o
+
+# optional gpiolib support
+ifeq ($(CONFIG_ALCHEMY_GPIO_INDIRECT),)
+ obj-$(CONFIG_GPIOLIB) += gpiolib.o
+endif
diff --git a/kernel/arch/mips/alchemy/common/clock.c b/kernel/arch/mips/alchemy/common/clock.c
new file mode 100644
index 000000000..6a98d2cb4
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/clock.c
@@ -0,0 +1,1116 @@
+/*
+ * Alchemy clocks.
+ *
+ * Exposes all configurable internal clock sources to the clk framework.
+ *
+ * We have:
+ *  - Root source, usually 12MHz supplied by an external crystal
+ *  - 3 PLLs which generate multiples of root rate [AUX, CPU, AUX2]
+ *
+ * Dividers:
+ *  - 6 clock dividers with:
+ *   * selectable source [one of the PLLs],
+ *   * output divided between [2 .. 512 in steps of 2] (!Au1300)
+ *     or [1 .. 256 in steps of 1] (Au1300),
+ *   * can be enabled individually.
+ *
+ * - up to 6 "internal" (fixed) consumers which:
+ *   * take either AUXPLL or one of the above 6 dividers as input,
+ *   * divide this input by 1, 2, or 4 (and 3 on Au1300).
+ *   * can be disabled separately.
+ *
+ * Misc clocks:
+ * - sysbus clock: CPU core clock (CPUPLL) divided by 2, 3 or 4.
+ *    depends on board design and should be set by bootloader, read-only.
+ * - peripheral clock: half the rate of sysbus clock, source for a lot
+ *    of peripheral blocks, read-only.
+ * - memory clock: clk rate to main memory chips, depends on board
+ *    design and is read-only,
+ * - lrclk: the static bus clock signal for synchronous operation.
+ *    depends on board design, must be set by bootloader,
+ *    but may be required to correctly configure devices attached to
+ *    the static bus. The Au1000/1500/1100 manuals call it LCLK, on
+ *    later models it's called RCLK.
+ */
+
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <asm/mach-au1x00/au1000.h>
+
+/* Base clock: 12MHz is the default in all databooks, and I haven't
+ * found any board yet which uses a different rate.
+ */
+#define ALCHEMY_ROOTCLK_RATE	12000000
+
+/*
+ * the internal sources which can be driven by the PLLs and dividers.
+ * Names taken from the databooks, refer to them for more information,
+ * especially which ones are share a clock line.
+ */
+static const char * const alchemy_au1300_intclknames[] = {
+	"lcd_intclk", "gpemgp_clk", "maempe_clk", "maebsa_clk",
+	"EXTCLK0", "EXTCLK1"
+};
+
+static const char * const alchemy_au1200_intclknames[] = {
+	"lcd_intclk", NULL, NULL, NULL, "EXTCLK0", "EXTCLK1"
+};
+
+static const char * const alchemy_au1550_intclknames[] = {
+	"usb_clk", "psc0_intclk", "psc1_intclk", "pci_clko",
+	"EXTCLK0", "EXTCLK1"
+};
+
+static const char * const alchemy_au1100_intclknames[] = {
+	"usb_clk", "lcd_intclk", NULL, "i2s_clk", "EXTCLK0", "EXTCLK1"
+};
+
+static const char * const alchemy_au1500_intclknames[] = {
+	NULL, "usbd_clk", "usbh_clk", "pci_clko", "EXTCLK0", "EXTCLK1"
+};
+
+static const char * const alchemy_au1000_intclknames[] = {
+	"irda_clk", "usbd_clk", "usbh_clk", "i2s_clk", "EXTCLK0",
+	"EXTCLK1"
+};
+
+/* aliases for a few on-chip sources which are either shared
+ * or have gone through name changes.
+ */
+static struct clk_aliastable {
+	char *alias;
+	char *base;
+	int cputype;
+} alchemy_clk_aliases[] __initdata = {
+	{ "usbh_clk", "usb_clk",    ALCHEMY_CPU_AU1100 },
+	{ "usbd_clk", "usb_clk",    ALCHEMY_CPU_AU1100 },
+	{ "irda_clk", "usb_clk",    ALCHEMY_CPU_AU1100 },
+	{ "usbh_clk", "usb_clk",    ALCHEMY_CPU_AU1550 },
+	{ "usbd_clk", "usb_clk",    ALCHEMY_CPU_AU1550 },
+	{ "psc2_intclk", "usb_clk", ALCHEMY_CPU_AU1550 },
+	{ "psc3_intclk", "EXTCLK0", ALCHEMY_CPU_AU1550 },
+	{ "psc0_intclk", "EXTCLK0", ALCHEMY_CPU_AU1200 },
+	{ "psc1_intclk", "EXTCLK1", ALCHEMY_CPU_AU1200 },
+	{ "psc0_intclk", "EXTCLK0", ALCHEMY_CPU_AU1300 },
+	{ "psc2_intclk", "EXTCLK0", ALCHEMY_CPU_AU1300 },
+	{ "psc1_intclk", "EXTCLK1", ALCHEMY_CPU_AU1300 },
+	{ "psc3_intclk", "EXTCLK1", ALCHEMY_CPU_AU1300 },
+
+	{ NULL, NULL, 0 },
+};
+
+#define IOMEM(x)	((void __iomem *)(KSEG1ADDR(CPHYSADDR(x))))
+
+/* access locks to SYS_FREQCTRL0/1 and SYS_CLKSRC registers */
+static spinlock_t alchemy_clk_fg0_lock;
+static spinlock_t alchemy_clk_fg1_lock;
+static spinlock_t alchemy_clk_csrc_lock;
+
+/* CPU Core clock *****************************************************/
+
+static unsigned long alchemy_clk_cpu_recalc(struct clk_hw *hw,
+					    unsigned long parent_rate)
+{
+	unsigned long t;
+
+	/*
+	 * On early Au1000, sys_cpupll was write-only. Since these
+	 * silicon versions of Au1000 are not sold, we don't bend
+	 * over backwards trying to determine the frequency.
+	 */
+	if (unlikely(au1xxx_cpu_has_pll_wo()))
+		t = 396000000;
+	else {
+		t = alchemy_rdsys(AU1000_SYS_CPUPLL) & 0x7f;
+		if (alchemy_get_cputype() < ALCHEMY_CPU_AU1300)
+			t &= 0x3f;
+		t *= parent_rate;
+	}
+
+	return t;
+}
+
+void __init alchemy_set_lpj(void)
+{
+	preset_lpj = alchemy_clk_cpu_recalc(NULL, ALCHEMY_ROOTCLK_RATE);
+	preset_lpj /= 2 * HZ;
+}
+
+static struct clk_ops alchemy_clkops_cpu = {
+	.recalc_rate	= alchemy_clk_cpu_recalc,
+};
+
+static struct clk __init *alchemy_clk_setup_cpu(const char *parent_name,
+						int ctype)
+{
+	struct clk_init_data id;
+	struct clk_hw *h;
+
+	h = kzalloc(sizeof(*h), GFP_KERNEL);
+	if (!h)
+		return ERR_PTR(-ENOMEM);
+
+	id.name = ALCHEMY_CPU_CLK;
+	id.parent_names = &parent_name;
+	id.num_parents = 1;
+	id.flags = CLK_IS_BASIC;
+	id.ops = &alchemy_clkops_cpu;
+	h->init = &id;
+
+	return clk_register(NULL, h);
+}
+
+/* AUXPLLs ************************************************************/
+
+struct alchemy_auxpll_clk {
+	struct clk_hw hw;
+	unsigned long reg;	/* au1300 has also AUXPLL2 */
+	int maxmult;		/* max multiplier */
+};
+#define to_auxpll_clk(x) container_of(x, struct alchemy_auxpll_clk, hw)
+
+static unsigned long alchemy_clk_aux_recalc(struct clk_hw *hw,
+					    unsigned long parent_rate)
+{
+	struct alchemy_auxpll_clk *a = to_auxpll_clk(hw);
+
+	return (alchemy_rdsys(a->reg) & 0xff) * parent_rate;
+}
+
+static int alchemy_clk_aux_setr(struct clk_hw *hw,
+				unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct alchemy_auxpll_clk *a = to_auxpll_clk(hw);
+	unsigned long d = rate;
+
+	if (rate)
+		d /= parent_rate;
+	else
+		d = 0;
+
+	/* minimum is 84MHz, max is 756-1032 depending on variant */
+	if (((d < 7) && (d != 0)) || (d > a->maxmult))
+		return -EINVAL;
+
+	alchemy_wrsys(d, a->reg);
+	return 0;
+}
+
+static long alchemy_clk_aux_roundr(struct clk_hw *hw,
+					    unsigned long rate,
+					    unsigned long *parent_rate)
+{
+	struct alchemy_auxpll_clk *a = to_auxpll_clk(hw);
+	unsigned long mult;
+
+	if (!rate || !*parent_rate)
+		return 0;
+
+	mult = rate / (*parent_rate);
+
+	if (mult && (mult < 7))
+		mult = 7;
+	if (mult > a->maxmult)
+		mult = a->maxmult;
+
+	return (*parent_rate) * mult;
+}
+
+static struct clk_ops alchemy_clkops_aux = {
+	.recalc_rate	= alchemy_clk_aux_recalc,
+	.set_rate	= alchemy_clk_aux_setr,
+	.round_rate	= alchemy_clk_aux_roundr,
+};
+
+static struct clk __init *alchemy_clk_setup_aux(const char *parent_name,
+						char *name, int maxmult,
+						unsigned long reg)
+{
+	struct clk_init_data id;
+	struct clk *c;
+	struct alchemy_auxpll_clk *a;
+
+	a = kzalloc(sizeof(*a), GFP_KERNEL);
+	if (!a)
+		return ERR_PTR(-ENOMEM);
+
+	id.name = name;
+	id.parent_names = &parent_name;
+	id.num_parents = 1;
+	id.flags = CLK_GET_RATE_NOCACHE;
+	id.ops = &alchemy_clkops_aux;
+
+	a->reg = reg;
+	a->maxmult = maxmult;
+	a->hw.init = &id;
+
+	c = clk_register(NULL, &a->hw);
+	if (!IS_ERR(c))
+		clk_register_clkdev(c, name, NULL);
+	else
+		kfree(a);
+
+	return c;
+}
+
+/* sysbus_clk *********************************************************/
+
+static struct clk __init  *alchemy_clk_setup_sysbus(const char *pn)
+{
+	unsigned long v = (alchemy_rdsys(AU1000_SYS_POWERCTRL) & 3) + 2;
+	struct clk *c;
+
+	c = clk_register_fixed_factor(NULL, ALCHEMY_SYSBUS_CLK,
+				      pn, 0, 1, v);
+	if (!IS_ERR(c))
+		clk_register_clkdev(c, ALCHEMY_SYSBUS_CLK, NULL);
+	return c;
+}
+
+/* Peripheral Clock ***************************************************/
+
+static struct clk __init *alchemy_clk_setup_periph(const char *pn)
+{
+	/* Peripheral clock runs at half the rate of sysbus clk */
+	struct clk *c;
+
+	c = clk_register_fixed_factor(NULL, ALCHEMY_PERIPH_CLK,
+				      pn, 0, 1, 2);
+	if (!IS_ERR(c))
+		clk_register_clkdev(c, ALCHEMY_PERIPH_CLK, NULL);
+	return c;
+}
+
+/* mem clock **********************************************************/
+
+static struct clk __init *alchemy_clk_setup_mem(const char *pn, int ct)
+{
+	void __iomem *addr = IOMEM(AU1000_MEM_PHYS_ADDR);
+	unsigned long v;
+	struct clk *c;
+	int div;
+
+	switch (ct) {
+	case ALCHEMY_CPU_AU1550:
+	case ALCHEMY_CPU_AU1200:
+		v = __raw_readl(addr + AU1550_MEM_SDCONFIGB);
+		div = (v & (1 << 15)) ? 1 : 2;
+		break;
+	case ALCHEMY_CPU_AU1300:
+		v = __raw_readl(addr + AU1550_MEM_SDCONFIGB);
+		div = (v & (1 << 31)) ? 1 : 2;
+		break;
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+	case ALCHEMY_CPU_AU1100:
+	default:
+		div = 2;
+		break;
+	}
+
+	c = clk_register_fixed_factor(NULL, ALCHEMY_MEM_CLK, pn,
+				      0, 1, div);
+	if (!IS_ERR(c))
+		clk_register_clkdev(c, ALCHEMY_MEM_CLK, NULL);
+	return c;
+}
+
+/* lrclk: external synchronous static bus clock ***********************/
+
+static struct clk __init *alchemy_clk_setup_lrclk(const char *pn, int t)
+{
+	/* Au1000, Au1500: MEM_STCFG0[11]: If bit is set, lrclk=pclk/5,
+	 * otherwise lrclk=pclk/4.
+	 * All other variants: MEM_STCFG0[15:13] = divisor.
+	 * L/RCLK = periph_clk / (divisor + 1)
+	 * On Au1000, Au1500, Au1100 it's called LCLK,
+	 * on later models it's called RCLK, but it's the same thing.
+	 */
+	struct clk *c;
+	unsigned long v = alchemy_rdsmem(AU1000_MEM_STCFG0);
+
+	switch (t) {
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+		v = 4 + ((v >> 11) & 1);
+		break;
+	default:	/* all other models */
+		v = ((v >> 13) & 7) + 1;
+	}
+	c = clk_register_fixed_factor(NULL, ALCHEMY_LR_CLK,
+				      pn, 0, 1, v);
+	if (!IS_ERR(c))
+		clk_register_clkdev(c, ALCHEMY_LR_CLK, NULL);
+	return c;
+}
+
+/* Clock dividers and muxes *******************************************/
+
+/* data for fgen and csrc mux-dividers */
+struct alchemy_fgcs_clk {
+	struct clk_hw hw;
+	spinlock_t *reglock;	/* register lock		  */
+	unsigned long reg;	/* SYS_FREQCTRL0/1		  */
+	int shift;		/* offset in register		  */
+	int parent;		/* parent before disable [Au1300] */
+	int isen;		/* is it enabled?		  */
+	int *dt;		/* dividertable for csrc	  */
+};
+#define to_fgcs_clk(x) container_of(x, struct alchemy_fgcs_clk, hw)
+
+static long alchemy_calc_div(unsigned long rate, unsigned long prate,
+			       int scale, int maxdiv, unsigned long *rv)
+{
+	long div1, div2;
+
+	div1 = prate / rate;
+	if ((prate / div1) > rate)
+		div1++;
+
+	if (scale == 2) {	/* only div-by-multiple-of-2 possible */
+		if (div1 & 1)
+			div1++;	/* stay <=prate */
+	}
+
+	div2 = (div1 / scale) - 1;	/* value to write to register */
+
+	if (div2 > maxdiv)
+		div2 = maxdiv;
+	if (rv)
+		*rv = div2;
+
+	div1 = ((div2 + 1) * scale);
+	return div1;
+}
+
+static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate,
+					unsigned long *best_parent_rate,
+					struct clk_hw **best_parent_clk,
+					int scale, int maxdiv)
+{
+	struct clk *pc, *bpc, *free;
+	long tdv, tpr, pr, nr, br, bpr, diff, lastdiff;
+	int j;
+
+	lastdiff = INT_MAX;
+	bpr = 0;
+	bpc = NULL;
+	br = -EINVAL;
+	free = NULL;
+
+	/* look at the rates each enabled parent supplies and select
+	 * the one that gets closest to but not over the requested rate.
+	 */
+	for (j = 0; j < 7; j++) {
+		pc = clk_get_parent_by_index(hw->clk, j);
+		if (!pc)
+			break;
+
+		/* if this parent is currently unused, remember it.
+		 * XXX: we would actually want clk_has_active_children()
+		 * but this is a good-enough approximation for now.
+		 */
+		if (!__clk_is_prepared(pc)) {
+			if (!free)
+				free = pc;
+		}
+
+		pr = clk_get_rate(pc);
+		if (pr < rate)
+			continue;
+
+		/* what can hardware actually provide */
+		tdv = alchemy_calc_div(rate, pr, scale, maxdiv, NULL);
+		nr = pr / tdv;
+		diff = rate - nr;
+		if (nr > rate)
+			continue;
+
+		if (diff < lastdiff) {
+			lastdiff = diff;
+			bpr = pr;
+			bpc = pc;
+			br = nr;
+		}
+		if (diff == 0)
+			break;
+	}
+
+	/* if we couldn't get the exact rate we wanted from the enabled
+	 * parents, maybe we can tell an available disabled/inactive one
+	 * to give us a rate we can divide down to the requested rate.
+	 */
+	if (lastdiff && free) {
+		for (j = (maxdiv == 4) ? 1 : scale; j <= maxdiv; j += scale) {
+			tpr = rate * j;
+			if (tpr < 0)
+				break;
+			pr = clk_round_rate(free, tpr);
+
+			tdv = alchemy_calc_div(rate, pr, scale, maxdiv, NULL);
+			nr = pr / tdv;
+			diff = rate - nr;
+			if (nr > rate)
+				continue;
+			if (diff < lastdiff) {
+				lastdiff = diff;
+				bpr = pr;
+				bpc = free;
+				br = nr;
+			}
+			if (diff == 0)
+				break;
+		}
+	}
+
+	*best_parent_rate = bpr;
+	*best_parent_clk = __clk_get_hw(bpc);
+	return br;
+}
+
+static int alchemy_clk_fgv1_en(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v, flags;
+
+	spin_lock_irqsave(c->reglock, flags);
+	v = alchemy_rdsys(c->reg);
+	v |= (1 << 1) << c->shift;
+	alchemy_wrsys(v, c->reg);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static int alchemy_clk_fgv1_isen(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v = alchemy_rdsys(c->reg) >> (c->shift + 1);
+
+	return v & 1;
+}
+
+static void alchemy_clk_fgv1_dis(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v, flags;
+
+	spin_lock_irqsave(c->reglock, flags);
+	v = alchemy_rdsys(c->reg);
+	v &= ~((1 << 1) << c->shift);
+	alchemy_wrsys(v, c->reg);
+	spin_unlock_irqrestore(c->reglock, flags);
+}
+
+static int alchemy_clk_fgv1_setp(struct clk_hw *hw, u8 index)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v, flags;
+
+	spin_lock_irqsave(c->reglock, flags);
+	v = alchemy_rdsys(c->reg);
+	if (index)
+		v |= (1 << c->shift);
+	else
+		v &= ~(1 << c->shift);
+	alchemy_wrsys(v, c->reg);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static u8 alchemy_clk_fgv1_getp(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+
+	return (alchemy_rdsys(c->reg) >> c->shift) & 1;
+}
+
+static int alchemy_clk_fgv1_setr(struct clk_hw *hw, unsigned long rate,
+				 unsigned long parent_rate)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long div, v, flags, ret;
+	int sh = c->shift + 2;
+
+	if (!rate || !parent_rate || rate > (parent_rate / 2))
+		return -EINVAL;
+	ret = alchemy_calc_div(rate, parent_rate, 2, 512, &div);
+	spin_lock_irqsave(c->reglock, flags);
+	v = alchemy_rdsys(c->reg);
+	v &= ~(0xff << sh);
+	v |= div << sh;
+	alchemy_wrsys(v, c->reg);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static unsigned long alchemy_clk_fgv1_recalc(struct clk_hw *hw,
+					     unsigned long parent_rate)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v = alchemy_rdsys(c->reg) >> (c->shift + 2);
+
+	v = ((v & 0xff) + 1) * 2;
+	return parent_rate / v;
+}
+
+static long alchemy_clk_fgv1_detr(struct clk_hw *hw, unsigned long rate,
+					unsigned long min_rate,
+					unsigned long max_rate,
+					unsigned long *best_parent_rate,
+					struct clk_hw **best_parent_clk)
+{
+	return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate,
+				     best_parent_clk, 2, 512);
+}
+
+/* Au1000, Au1100, Au15x0, Au12x0 */
+static struct clk_ops alchemy_clkops_fgenv1 = {
+	.recalc_rate	= alchemy_clk_fgv1_recalc,
+	.determine_rate	= alchemy_clk_fgv1_detr,
+	.set_rate	= alchemy_clk_fgv1_setr,
+	.set_parent	= alchemy_clk_fgv1_setp,
+	.get_parent	= alchemy_clk_fgv1_getp,
+	.enable		= alchemy_clk_fgv1_en,
+	.disable	= alchemy_clk_fgv1_dis,
+	.is_enabled	= alchemy_clk_fgv1_isen,
+};
+
+static void __alchemy_clk_fgv2_en(struct alchemy_fgcs_clk *c)
+{
+	unsigned long v = alchemy_rdsys(c->reg);
+
+	v &= ~(3 << c->shift);
+	v |= (c->parent & 3) << c->shift;
+	alchemy_wrsys(v, c->reg);
+	c->isen = 1;
+}
+
+static int alchemy_clk_fgv2_en(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long flags;
+
+	/* enable by setting the previous parent clock */
+	spin_lock_irqsave(c->reglock, flags);
+	__alchemy_clk_fgv2_en(c);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static int alchemy_clk_fgv2_isen(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+
+	return ((alchemy_rdsys(c->reg) >> c->shift) & 3) != 0;
+}
+
+static void alchemy_clk_fgv2_dis(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v, flags;
+
+	spin_lock_irqsave(c->reglock, flags);
+	v = alchemy_rdsys(c->reg);
+	v &= ~(3 << c->shift);	/* set input mux to "disabled" state */
+	alchemy_wrsys(v, c->reg);
+	c->isen = 0;
+	spin_unlock_irqrestore(c->reglock, flags);
+}
+
+static int alchemy_clk_fgv2_setp(struct clk_hw *hw, u8 index)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long flags;
+
+	spin_lock_irqsave(c->reglock, flags);
+	c->parent = index + 1;	/* value to write to register */
+	if (c->isen)
+		__alchemy_clk_fgv2_en(c);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static u8 alchemy_clk_fgv2_getp(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long flags, v;
+
+	spin_lock_irqsave(c->reglock, flags);
+	v = c->parent - 1;
+	spin_unlock_irqrestore(c->reglock, flags);
+	return v;
+}
+
+/* fg0-2 and fg4-6 share a "scale"-bit. With this bit cleared, the
+ * dividers behave exactly as on previous models (dividers are multiples
+ * of 2); with the bit set, dividers are multiples of 1, halving their
+ * range, but making them also much more flexible.
+ */
+static int alchemy_clk_fgv2_setr(struct clk_hw *hw, unsigned long rate,
+				 unsigned long parent_rate)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	int sh = c->shift + 2;
+	unsigned long div, v, flags, ret;
+
+	if (!rate || !parent_rate || rate > parent_rate)
+		return -EINVAL;
+
+	v = alchemy_rdsys(c->reg) & (1 << 30); /* test "scale" bit */
+	ret = alchemy_calc_div(rate, parent_rate, v ? 1 : 2,
+			       v ? 256 : 512, &div);
+
+	spin_lock_irqsave(c->reglock, flags);
+	v = alchemy_rdsys(c->reg);
+	v &= ~(0xff << sh);
+	v |= (div & 0xff) << sh;
+	alchemy_wrsys(v, c->reg);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static unsigned long alchemy_clk_fgv2_recalc(struct clk_hw *hw,
+					     unsigned long parent_rate)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	int sh = c->shift + 2;
+	unsigned long v, t;
+
+	v = alchemy_rdsys(c->reg);
+	t = parent_rate / (((v >> sh) & 0xff) + 1);
+	if ((v & (1 << 30)) == 0)		/* test scale bit */
+		t /= 2;
+
+	return t;
+}
+
+static long alchemy_clk_fgv2_detr(struct clk_hw *hw, unsigned long rate,
+					unsigned long min_rate,
+					unsigned long max_rate,
+					unsigned long *best_parent_rate,
+					struct clk_hw **best_parent_clk)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	int scale, maxdiv;
+
+	if (alchemy_rdsys(c->reg) & (1 << 30)) {
+		scale = 1;
+		maxdiv = 256;
+	} else {
+		scale = 2;
+		maxdiv = 512;
+	}
+
+	return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate,
+				     best_parent_clk, scale, maxdiv);
+}
+
+/* Au1300 larger input mux, no separate disable bit, flexible divider */
+static struct clk_ops alchemy_clkops_fgenv2 = {
+	.recalc_rate	= alchemy_clk_fgv2_recalc,
+	.determine_rate	= alchemy_clk_fgv2_detr,
+	.set_rate	= alchemy_clk_fgv2_setr,
+	.set_parent	= alchemy_clk_fgv2_setp,
+	.get_parent	= alchemy_clk_fgv2_getp,
+	.enable		= alchemy_clk_fgv2_en,
+	.disable	= alchemy_clk_fgv2_dis,
+	.is_enabled	= alchemy_clk_fgv2_isen,
+};
+
+static const char * const alchemy_clk_fgv1_parents[] = {
+	ALCHEMY_CPU_CLK, ALCHEMY_AUXPLL_CLK
+};
+
+static const char * const alchemy_clk_fgv2_parents[] = {
+	ALCHEMY_AUXPLL2_CLK, ALCHEMY_CPU_CLK, ALCHEMY_AUXPLL_CLK
+};
+
+static const char * const alchemy_clk_fgen_names[] = {
+	ALCHEMY_FG0_CLK, ALCHEMY_FG1_CLK, ALCHEMY_FG2_CLK,
+	ALCHEMY_FG3_CLK, ALCHEMY_FG4_CLK, ALCHEMY_FG5_CLK };
+
+static int __init alchemy_clk_init_fgens(int ctype)
+{
+	struct clk *c;
+	struct clk_init_data id;
+	struct alchemy_fgcs_clk *a;
+	unsigned long v;
+	int i, ret;
+
+	switch (ctype) {
+	case ALCHEMY_CPU_AU1000...ALCHEMY_CPU_AU1200:
+		id.ops = &alchemy_clkops_fgenv1;
+		id.parent_names = (const char **)alchemy_clk_fgv1_parents;
+		id.num_parents = 2;
+		break;
+	case ALCHEMY_CPU_AU1300:
+		id.ops = &alchemy_clkops_fgenv2;
+		id.parent_names = (const char **)alchemy_clk_fgv2_parents;
+		id.num_parents = 3;
+		break;
+	default:
+		return -ENODEV;
+	}
+	id.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE;
+
+	a = kzalloc((sizeof(*a)) * 6, GFP_KERNEL);
+	if (!a)
+		return -ENOMEM;
+
+	spin_lock_init(&alchemy_clk_fg0_lock);
+	spin_lock_init(&alchemy_clk_fg1_lock);
+	ret = 0;
+	for (i = 0; i < 6; i++) {
+		id.name = alchemy_clk_fgen_names[i];
+		a->shift = 10 * (i < 3 ? i : i - 3);
+		if (i > 2) {
+			a->reg = AU1000_SYS_FREQCTRL1;
+			a->reglock = &alchemy_clk_fg1_lock;
+		} else {
+			a->reg = AU1000_SYS_FREQCTRL0;
+			a->reglock = &alchemy_clk_fg0_lock;
+		}
+
+		/* default to first parent if bootloader has set
+		 * the mux to disabled state.
+		 */
+		if (ctype == ALCHEMY_CPU_AU1300) {
+			v = alchemy_rdsys(a->reg);
+			a->parent = (v >> a->shift) & 3;
+			if (!a->parent) {
+				a->parent = 1;
+				a->isen = 0;
+			} else
+				a->isen = 1;
+		}
+
+		a->hw.init = &id;
+		c = clk_register(NULL, &a->hw);
+		if (IS_ERR(c))
+			ret++;
+		else
+			clk_register_clkdev(c, id.name, NULL);
+		a++;
+	}
+
+	return ret;
+}
+
+/* internal sources muxes *********************************************/
+
+static int alchemy_clk_csrc_isen(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v = alchemy_rdsys(c->reg);
+
+	return (((v >> c->shift) >> 2) & 7) != 0;
+}
+
+static void __alchemy_clk_csrc_en(struct alchemy_fgcs_clk *c)
+{
+	unsigned long v = alchemy_rdsys(c->reg);
+
+	v &= ~((7 << 2) << c->shift);
+	v |= ((c->parent & 7) << 2) << c->shift;
+	alchemy_wrsys(v, c->reg);
+	c->isen = 1;
+}
+
+static int alchemy_clk_csrc_en(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long flags;
+
+	/* enable by setting the previous parent clock */
+	spin_lock_irqsave(c->reglock, flags);
+	__alchemy_clk_csrc_en(c);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static void alchemy_clk_csrc_dis(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v, flags;
+
+	spin_lock_irqsave(c->reglock, flags);
+	v = alchemy_rdsys(c->reg);
+	v &= ~((3 << 2) << c->shift);	/* mux to "disabled" state */
+	alchemy_wrsys(v, c->reg);
+	c->isen = 0;
+	spin_unlock_irqrestore(c->reglock, flags);
+}
+
+static int alchemy_clk_csrc_setp(struct clk_hw *hw, u8 index)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long flags;
+
+	spin_lock_irqsave(c->reglock, flags);
+	c->parent = index + 1;	/* value to write to register */
+	if (c->isen)
+		__alchemy_clk_csrc_en(c);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static u8 alchemy_clk_csrc_getp(struct clk_hw *hw)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+
+	return c->parent - 1;
+}
+
+static unsigned long alchemy_clk_csrc_recalc(struct clk_hw *hw,
+					     unsigned long parent_rate)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long v = (alchemy_rdsys(c->reg) >> c->shift) & 3;
+
+	return parent_rate / c->dt[v];
+}
+
+static int alchemy_clk_csrc_setr(struct clk_hw *hw, unsigned long rate,
+				 unsigned long parent_rate)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	unsigned long d, v, flags;
+	int i;
+
+	if (!rate || !parent_rate || rate > parent_rate)
+		return -EINVAL;
+
+	d = (parent_rate + (rate / 2)) / rate;
+	if (d > 4)
+		return -EINVAL;
+	if ((d == 3) && (c->dt[2] != 3))
+		d = 4;
+
+	for (i = 0; i < 4; i++)
+		if (c->dt[i] == d)
+			break;
+
+	if (i >= 4)
+		return -EINVAL;	/* oops */
+
+	spin_lock_irqsave(c->reglock, flags);
+	v = alchemy_rdsys(c->reg);
+	v &= ~(3 << c->shift);
+	v |= (i & 3) << c->shift;
+	alchemy_wrsys(v, c->reg);
+	spin_unlock_irqrestore(c->reglock, flags);
+
+	return 0;
+}
+
+static long alchemy_clk_csrc_detr(struct clk_hw *hw, unsigned long rate,
+					unsigned long min_rate,
+					unsigned long max_rate,
+					unsigned long *best_parent_rate,
+					struct clk_hw **best_parent_clk)
+{
+	struct alchemy_fgcs_clk *c = to_fgcs_clk(hw);
+	int scale = c->dt[2] == 3 ? 1 : 2; /* au1300 check */
+
+	return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate,
+				     best_parent_clk, scale, 4);
+}
+
+static struct clk_ops alchemy_clkops_csrc = {
+	.recalc_rate	= alchemy_clk_csrc_recalc,
+	.determine_rate	= alchemy_clk_csrc_detr,
+	.set_rate	= alchemy_clk_csrc_setr,
+	.set_parent	= alchemy_clk_csrc_setp,
+	.get_parent	= alchemy_clk_csrc_getp,
+	.enable		= alchemy_clk_csrc_en,
+	.disable	= alchemy_clk_csrc_dis,
+	.is_enabled	= alchemy_clk_csrc_isen,
+};
+
+static const char * const alchemy_clk_csrc_parents[] = {
+	/* disabled at index 0 */ ALCHEMY_AUXPLL_CLK,
+	ALCHEMY_FG0_CLK, ALCHEMY_FG1_CLK, ALCHEMY_FG2_CLK,
+	ALCHEMY_FG3_CLK, ALCHEMY_FG4_CLK, ALCHEMY_FG5_CLK
+};
+
+/* divider tables */
+static int alchemy_csrc_dt1[] = { 1, 4, 1, 2 };	/* rest */
+static int alchemy_csrc_dt2[] = { 1, 4, 3, 2 };	/* Au1300 */
+
+static int __init alchemy_clk_setup_imux(int ctype)
+{
+	struct alchemy_fgcs_clk *a;
+	const char * const *names;
+	struct clk_init_data id;
+	unsigned long v;
+	int i, ret, *dt;
+	struct clk *c;
+
+	id.ops = &alchemy_clkops_csrc;
+	id.parent_names = (const char **)alchemy_clk_csrc_parents;
+	id.num_parents = 7;
+	id.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE;
+
+	dt = alchemy_csrc_dt1;
+	switch (ctype) {
+	case ALCHEMY_CPU_AU1000:
+		names = alchemy_au1000_intclknames;
+		break;
+	case ALCHEMY_CPU_AU1500:
+		names = alchemy_au1500_intclknames;
+		break;
+	case ALCHEMY_CPU_AU1100:
+		names = alchemy_au1100_intclknames;
+		break;
+	case ALCHEMY_CPU_AU1550:
+		names = alchemy_au1550_intclknames;
+		break;
+	case ALCHEMY_CPU_AU1200:
+		names = alchemy_au1200_intclknames;
+		break;
+	case ALCHEMY_CPU_AU1300:
+		dt = alchemy_csrc_dt2;
+		names = alchemy_au1300_intclknames;
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	a = kzalloc((sizeof(*a)) * 6, GFP_KERNEL);
+	if (!a)
+		return -ENOMEM;
+
+	spin_lock_init(&alchemy_clk_csrc_lock);
+	ret = 0;
+
+	for (i = 0; i < 6; i++) {
+		id.name = names[i];
+		if (!id.name)
+			goto next;
+
+		a->shift = i * 5;
+		a->reg = AU1000_SYS_CLKSRC;
+		a->reglock = &alchemy_clk_csrc_lock;
+		a->dt = dt;
+
+		/* default to first parent clock if mux is initially
+		 * set to disabled state.
+		 */
+		v = alchemy_rdsys(a->reg);
+		a->parent = ((v >> a->shift) >> 2) & 7;
+		if (!a->parent) {
+			a->parent = 1;
+			a->isen = 0;
+		} else
+			a->isen = 1;
+
+		a->hw.init = &id;
+		c = clk_register(NULL, &a->hw);
+		if (IS_ERR(c))
+			ret++;
+		else
+			clk_register_clkdev(c, id.name, NULL);
+next:
+		a++;
+	}
+
+	return ret;
+}
+
+
+/**********************************************************************/
+
+
+#define ERRCK(x)						\
+	if (IS_ERR(x)) {					\
+		ret = PTR_ERR(x);				\
+		goto out;					\
+	}
+
+static int __init alchemy_clk_init(void)
+{
+	int ctype = alchemy_get_cputype(), ret, i;
+	struct clk_aliastable *t = alchemy_clk_aliases;
+	struct clk *c;
+
+	/* Root of the Alchemy clock tree: external 12MHz crystal osc */
+	c = clk_register_fixed_rate(NULL, ALCHEMY_ROOT_CLK, NULL,
+					   CLK_IS_ROOT,
+					   ALCHEMY_ROOTCLK_RATE);
+	ERRCK(c)
+
+	/* CPU core clock */
+	c = alchemy_clk_setup_cpu(ALCHEMY_ROOT_CLK, ctype);
+	ERRCK(c)
+
+	/* AUXPLLs: max 1GHz on Au1300, 748MHz on older models */
+	i = (ctype == ALCHEMY_CPU_AU1300) ? 84 : 63;
+	c = alchemy_clk_setup_aux(ALCHEMY_ROOT_CLK, ALCHEMY_AUXPLL_CLK,
+				  i, AU1000_SYS_AUXPLL);
+	ERRCK(c)
+
+	if (ctype == ALCHEMY_CPU_AU1300) {
+		c = alchemy_clk_setup_aux(ALCHEMY_ROOT_CLK,
+					  ALCHEMY_AUXPLL2_CLK, i,
+					  AU1300_SYS_AUXPLL2);
+		ERRCK(c)
+	}
+
+	/* sysbus clock: cpu core clock divided by 2, 3 or 4 */
+	c = alchemy_clk_setup_sysbus(ALCHEMY_CPU_CLK);
+	ERRCK(c)
+
+	/* peripheral clock: runs at half rate of sysbus clk */
+	c = alchemy_clk_setup_periph(ALCHEMY_SYSBUS_CLK);
+	ERRCK(c)
+
+	/* SDR/DDR memory clock */
+	c = alchemy_clk_setup_mem(ALCHEMY_SYSBUS_CLK, ctype);
+	ERRCK(c)
+
+	/* L/RCLK: external static bus clock for synchronous mode */
+	c = alchemy_clk_setup_lrclk(ALCHEMY_PERIPH_CLK, ctype);
+	ERRCK(c)
+
+	/* Frequency dividers 0-5 */
+	ret = alchemy_clk_init_fgens(ctype);
+	if (ret) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	/* diving muxes for internal sources */
+	ret = alchemy_clk_setup_imux(ctype);
+	if (ret) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	/* set up aliases drivers might look for */
+	while (t->base) {
+		if (t->cputype == ctype)
+			clk_add_alias(t->alias, NULL, t->base, NULL);
+		t++;
+	}
+
+	pr_info("Alchemy clocktree installed\n");
+	return 0;
+
+out:
+	return ret;
+}
+postcore_initcall(alchemy_clk_init);
diff --git a/kernel/arch/mips/alchemy/common/dbdma.c b/kernel/arch/mips/alchemy/common/dbdma.c
new file mode 100644
index 000000000..745695db5
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/dbdma.c
@@ -0,0 +1,1089 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *      The Descriptor Based DMA channel manager that first appeared
+ *	on the Au1550.  I started with dma.c, but I think all that is
+ *	left is this initial comment :-)
+ *
+ * Copyright 2004 Embedded Edge, LLC
+ *	dan@embeddededge.com
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/syscore_ops.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+
+/*
+ * The Descriptor Based DMA supports up to 16 channels.
+ *
+ * There are 32 devices defined. We keep an internal structure
+ * of devices using these channels, along with additional
+ * information.
+ *
+ * We allocate the descriptors and allow access to them through various
+ * functions.  The drivers allocate the data buffers and assign them
+ * to the descriptors.
+ */
+static DEFINE_SPINLOCK(au1xxx_dbdma_spin_lock);
+
+/* I couldn't find a macro that did this... */
+#define ALIGN_ADDR(x, a)	((((u32)(x)) + (a-1)) & ~(a-1))
+
+static dbdma_global_t *dbdma_gptr =
+			(dbdma_global_t *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);
+static int dbdma_initialized;
+
+static dbdev_tab_t *dbdev_tab;
+
+static dbdev_tab_t au1550_dbdev_tab[] __initdata = {
+	/* UARTS */
+	{ AU1550_DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8, 0x11100004, 0, 0 },
+	{ AU1550_DSCR_CMD0_UART0_RX, DEV_FLAGS_IN,  0, 8, 0x11100000, 0, 0 },
+	{ AU1550_DSCR_CMD0_UART3_TX, DEV_FLAGS_OUT, 0, 8, 0x11400004, 0, 0 },
+	{ AU1550_DSCR_CMD0_UART3_RX, DEV_FLAGS_IN,  0, 8, 0x11400000, 0, 0 },
+
+	/* EXT DMA */
+	{ AU1550_DSCR_CMD0_DMA_REQ0, 0, 0, 0, 0x00000000, 0, 0 },
+	{ AU1550_DSCR_CMD0_DMA_REQ1, 0, 0, 0, 0x00000000, 0, 0 },
+	{ AU1550_DSCR_CMD0_DMA_REQ2, 0, 0, 0, 0x00000000, 0, 0 },
+	{ AU1550_DSCR_CMD0_DMA_REQ3, 0, 0, 0, 0x00000000, 0, 0 },
+
+	/* USB DEV */
+	{ AU1550_DSCR_CMD0_USBDEV_RX0, DEV_FLAGS_IN,  4, 8, 0x10200000, 0, 0 },
+	{ AU1550_DSCR_CMD0_USBDEV_TX0, DEV_FLAGS_OUT, 4, 8, 0x10200004, 0, 0 },
+	{ AU1550_DSCR_CMD0_USBDEV_TX1, DEV_FLAGS_OUT, 4, 8, 0x10200008, 0, 0 },
+	{ AU1550_DSCR_CMD0_USBDEV_TX2, DEV_FLAGS_OUT, 4, 8, 0x1020000c, 0, 0 },
+	{ AU1550_DSCR_CMD0_USBDEV_RX3, DEV_FLAGS_IN,  4, 8, 0x10200010, 0, 0 },
+	{ AU1550_DSCR_CMD0_USBDEV_RX4, DEV_FLAGS_IN,  4, 8, 0x10200014, 0, 0 },
+
+	/* PSCs */
+	{ AU1550_DSCR_CMD0_PSC0_TX, DEV_FLAGS_OUT, 0, 0, 0x11a0001c, 0, 0 },
+	{ AU1550_DSCR_CMD0_PSC0_RX, DEV_FLAGS_IN,  0, 0, 0x11a0001c, 0, 0 },
+	{ AU1550_DSCR_CMD0_PSC1_TX, DEV_FLAGS_OUT, 0, 0, 0x11b0001c, 0, 0 },
+	{ AU1550_DSCR_CMD0_PSC1_RX, DEV_FLAGS_IN,  0, 0, 0x11b0001c, 0, 0 },
+	{ AU1550_DSCR_CMD0_PSC2_TX, DEV_FLAGS_OUT, 0, 0, 0x10a0001c, 0, 0 },
+	{ AU1550_DSCR_CMD0_PSC2_RX, DEV_FLAGS_IN,  0, 0, 0x10a0001c, 0, 0 },
+	{ AU1550_DSCR_CMD0_PSC3_TX, DEV_FLAGS_OUT, 0, 0, 0x10b0001c, 0, 0 },
+	{ AU1550_DSCR_CMD0_PSC3_RX, DEV_FLAGS_IN,  0, 0, 0x10b0001c, 0, 0 },
+
+	{ AU1550_DSCR_CMD0_PCI_WRITE,  0, 0, 0, 0x00000000, 0, 0 },  /* PCI */
+	{ AU1550_DSCR_CMD0_NAND_FLASH, 0, 0, 0, 0x00000000, 0, 0 }, /* NAND */
+
+	/* MAC 0 */
+	{ AU1550_DSCR_CMD0_MAC0_RX, DEV_FLAGS_IN,  0, 0, 0x00000000, 0, 0 },
+	{ AU1550_DSCR_CMD0_MAC0_TX, DEV_FLAGS_OUT, 0, 0, 0x00000000, 0, 0 },
+
+	/* MAC 1 */
+	{ AU1550_DSCR_CMD0_MAC1_RX, DEV_FLAGS_IN,  0, 0, 0x00000000, 0, 0 },
+	{ AU1550_DSCR_CMD0_MAC1_TX, DEV_FLAGS_OUT, 0, 0, 0x00000000, 0, 0 },
+
+	{ DSCR_CMD0_THROTTLE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+	{ DSCR_CMD0_ALWAYS,   DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+};
+
+static dbdev_tab_t au1200_dbdev_tab[] __initdata = {
+	{ AU1200_DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8, 0x11100004, 0, 0 },
+	{ AU1200_DSCR_CMD0_UART0_RX, DEV_FLAGS_IN,  0, 8, 0x11100000, 0, 0 },
+	{ AU1200_DSCR_CMD0_UART1_TX, DEV_FLAGS_OUT, 0, 8, 0x11200004, 0, 0 },
+	{ AU1200_DSCR_CMD0_UART1_RX, DEV_FLAGS_IN,  0, 8, 0x11200000, 0, 0 },
+
+	{ AU1200_DSCR_CMD0_DMA_REQ0, 0, 0, 0, 0x00000000, 0, 0 },
+	{ AU1200_DSCR_CMD0_DMA_REQ1, 0, 0, 0, 0x00000000, 0, 0 },
+
+	{ AU1200_DSCR_CMD0_MAE_BE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+	{ AU1200_DSCR_CMD0_MAE_FE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+	{ AU1200_DSCR_CMD0_MAE_BOTH, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+	{ AU1200_DSCR_CMD0_LCD, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+
+	{ AU1200_DSCR_CMD0_SDMS_TX0, DEV_FLAGS_OUT, 4, 8, 0x10600000, 0, 0 },
+	{ AU1200_DSCR_CMD0_SDMS_RX0, DEV_FLAGS_IN,  4, 8, 0x10600004, 0, 0 },
+	{ AU1200_DSCR_CMD0_SDMS_TX1, DEV_FLAGS_OUT, 4, 8, 0x10680000, 0, 0 },
+	{ AU1200_DSCR_CMD0_SDMS_RX1, DEV_FLAGS_IN,  4, 8, 0x10680004, 0, 0 },
+
+	{ AU1200_DSCR_CMD0_AES_RX, DEV_FLAGS_IN , 4, 32, 0x10300008, 0, 0 },
+	{ AU1200_DSCR_CMD0_AES_TX, DEV_FLAGS_OUT, 4, 32, 0x10300004, 0, 0 },
+
+	{ AU1200_DSCR_CMD0_PSC0_TX,   DEV_FLAGS_OUT, 0, 16, 0x11a0001c, 0, 0 },
+	{ AU1200_DSCR_CMD0_PSC0_RX,   DEV_FLAGS_IN,  0, 16, 0x11a0001c, 0, 0 },
+	{ AU1200_DSCR_CMD0_PSC0_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+	{ AU1200_DSCR_CMD0_PSC1_TX,   DEV_FLAGS_OUT, 0, 16, 0x11b0001c, 0, 0 },
+	{ AU1200_DSCR_CMD0_PSC1_RX,   DEV_FLAGS_IN,  0, 16, 0x11b0001c, 0, 0 },
+	{ AU1200_DSCR_CMD0_PSC1_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+
+	{ AU1200_DSCR_CMD0_CIM_RXA,  DEV_FLAGS_IN, 0, 32, 0x14004020, 0, 0 },
+	{ AU1200_DSCR_CMD0_CIM_RXB,  DEV_FLAGS_IN, 0, 32, 0x14004040, 0, 0 },
+	{ AU1200_DSCR_CMD0_CIM_RXC,  DEV_FLAGS_IN, 0, 32, 0x14004060, 0, 0 },
+	{ AU1200_DSCR_CMD0_CIM_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+
+	{ AU1200_DSCR_CMD0_NAND_FLASH, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
+
+	{ DSCR_CMD0_THROTTLE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+	{ DSCR_CMD0_ALWAYS,   DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+};
+
+static dbdev_tab_t au1300_dbdev_tab[] __initdata = {
+	{ AU1300_DSCR_CMD0_UART0_TX, DEV_FLAGS_OUT, 0, 8,  0x10100004, 0, 0 },
+	{ AU1300_DSCR_CMD0_UART0_RX, DEV_FLAGS_IN,  0, 8,  0x10100000, 0, 0 },
+	{ AU1300_DSCR_CMD0_UART1_TX, DEV_FLAGS_OUT, 0, 8,  0x10101004, 0, 0 },
+	{ AU1300_DSCR_CMD0_UART1_RX, DEV_FLAGS_IN,  0, 8,  0x10101000, 0, 0 },
+	{ AU1300_DSCR_CMD0_UART2_TX, DEV_FLAGS_OUT, 0, 8,  0x10102004, 0, 0 },
+	{ AU1300_DSCR_CMD0_UART2_RX, DEV_FLAGS_IN,  0, 8,  0x10102000, 0, 0 },
+	{ AU1300_DSCR_CMD0_UART3_TX, DEV_FLAGS_OUT, 0, 8,  0x10103004, 0, 0 },
+	{ AU1300_DSCR_CMD0_UART3_RX, DEV_FLAGS_IN,  0, 8,  0x10103000, 0, 0 },
+
+	{ AU1300_DSCR_CMD0_SDMS_TX0, DEV_FLAGS_OUT, 4, 8,  0x10600000, 0, 0 },
+	{ AU1300_DSCR_CMD0_SDMS_RX0, DEV_FLAGS_IN,  4, 8,  0x10600004, 0, 0 },
+	{ AU1300_DSCR_CMD0_SDMS_TX1, DEV_FLAGS_OUT, 8, 8,  0x10601000, 0, 0 },
+	{ AU1300_DSCR_CMD0_SDMS_RX1, DEV_FLAGS_IN,  8, 8,  0x10601004, 0, 0 },
+
+	{ AU1300_DSCR_CMD0_AES_RX, DEV_FLAGS_IN ,   4, 32, 0x10300008, 0, 0 },
+	{ AU1300_DSCR_CMD0_AES_TX, DEV_FLAGS_OUT,   4, 32, 0x10300004, 0, 0 },
+
+	{ AU1300_DSCR_CMD0_PSC0_TX, DEV_FLAGS_OUT,  0, 16, 0x10a0001c, 0, 0 },
+	{ AU1300_DSCR_CMD0_PSC0_RX, DEV_FLAGS_IN,   0, 16, 0x10a0001c, 0, 0 },
+	{ AU1300_DSCR_CMD0_PSC1_TX, DEV_FLAGS_OUT,  0, 16, 0x10a0101c, 0, 0 },
+	{ AU1300_DSCR_CMD0_PSC1_RX, DEV_FLAGS_IN,   0, 16, 0x10a0101c, 0, 0 },
+	{ AU1300_DSCR_CMD0_PSC2_TX, DEV_FLAGS_OUT,  0, 16, 0x10a0201c, 0, 0 },
+	{ AU1300_DSCR_CMD0_PSC2_RX, DEV_FLAGS_IN,   0, 16, 0x10a0201c, 0, 0 },
+	{ AU1300_DSCR_CMD0_PSC3_TX, DEV_FLAGS_OUT,  0, 16, 0x10a0301c, 0, 0 },
+	{ AU1300_DSCR_CMD0_PSC3_RX, DEV_FLAGS_IN,   0, 16, 0x10a0301c, 0, 0 },
+
+	{ AU1300_DSCR_CMD0_LCD, DEV_FLAGS_ANYUSE,   0, 0,  0x00000000, 0, 0 },
+	{ AU1300_DSCR_CMD0_NAND_FLASH, DEV_FLAGS_IN, 0, 0, 0x00000000, 0, 0 },
+
+	{ AU1300_DSCR_CMD0_SDMS_TX2, DEV_FLAGS_OUT, 4, 8,  0x10602000, 0, 0 },
+	{ AU1300_DSCR_CMD0_SDMS_RX2, DEV_FLAGS_IN,  4, 8,  0x10602004, 0, 0 },
+
+	{ AU1300_DSCR_CMD0_CIM_SYNC, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+
+	{ AU1300_DSCR_CMD0_UDMA, DEV_FLAGS_ANYUSE,  0, 32, 0x14001810, 0, 0 },
+
+	{ AU1300_DSCR_CMD0_DMA_REQ0, 0, 0, 0, 0x00000000, 0, 0 },
+	{ AU1300_DSCR_CMD0_DMA_REQ1, 0, 0, 0, 0x00000000, 0, 0 },
+
+	{ DSCR_CMD0_THROTTLE, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+	{ DSCR_CMD0_ALWAYS,   DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
+};
+
+/* 32 predefined plus 32 custom */
+#define DBDEV_TAB_SIZE		64
+
+static chan_tab_t *chan_tab_ptr[NUM_DBDMA_CHANS];
+
+static dbdev_tab_t *find_dbdev_id(u32 id)
+{
+	int i;
+	dbdev_tab_t *p;
+	for (i = 0; i < DBDEV_TAB_SIZE; ++i) {
+		p = &dbdev_tab[i];
+		if (p->dev_id == id)
+			return p;
+	}
+	return NULL;
+}
+
+void *au1xxx_ddma_get_nextptr_virt(au1x_ddma_desc_t *dp)
+{
+	return phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
+}
+EXPORT_SYMBOL(au1xxx_ddma_get_nextptr_virt);
+
+u32 au1xxx_ddma_add_device(dbdev_tab_t *dev)
+{
+	u32 ret = 0;
+	dbdev_tab_t *p;
+	static u16 new_id = 0x1000;
+
+	p = find_dbdev_id(~0);
+	if (NULL != p) {
+		memcpy(p, dev, sizeof(dbdev_tab_t));
+		p->dev_id = DSCR_DEV2CUSTOM_ID(new_id, dev->dev_id);
+		ret = p->dev_id;
+		new_id++;
+#if 0
+		printk(KERN_DEBUG "add_device: id:%x flags:%x padd:%x\n",
+				  p->dev_id, p->dev_flags, p->dev_physaddr);
+#endif
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(au1xxx_ddma_add_device);
+
+void au1xxx_ddma_del_device(u32 devid)
+{
+	dbdev_tab_t *p = find_dbdev_id(devid);
+
+	if (p != NULL) {
+		memset(p, 0, sizeof(dbdev_tab_t));
+		p->dev_id = ~0;
+	}
+}
+EXPORT_SYMBOL(au1xxx_ddma_del_device);
+
+/* Allocate a channel and return a non-zero descriptor if successful. */
+u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid,
+       void (*callback)(int, void *), void *callparam)
+{
+	unsigned long	flags;
+	u32		used, chan;
+	u32		dcp;
+	int		i;
+	dbdev_tab_t	*stp, *dtp;
+	chan_tab_t	*ctp;
+	au1x_dma_chan_t *cp;
+
+	/*
+	 * We do the intialization on the first channel allocation.
+	 * We have to wait because of the interrupt handler initialization
+	 * which can't be done successfully during board set up.
+	 */
+	if (!dbdma_initialized)
+		return 0;
+
+	stp = find_dbdev_id(srcid);
+	if (stp == NULL)
+		return 0;
+	dtp = find_dbdev_id(destid);
+	if (dtp == NULL)
+		return 0;
+
+	used = 0;
+
+	/* Check to see if we can get both channels. */
+	spin_lock_irqsave(&au1xxx_dbdma_spin_lock, flags);
+	if (!(stp->dev_flags & DEV_FLAGS_INUSE) ||
+	     (stp->dev_flags & DEV_FLAGS_ANYUSE)) {
+		/* Got source */
+		stp->dev_flags |= DEV_FLAGS_INUSE;
+		if (!(dtp->dev_flags & DEV_FLAGS_INUSE) ||
+		     (dtp->dev_flags & DEV_FLAGS_ANYUSE)) {
+			/* Got destination */
+			dtp->dev_flags |= DEV_FLAGS_INUSE;
+		} else {
+			/* Can't get dest.  Release src. */
+			stp->dev_flags &= ~DEV_FLAGS_INUSE;
+			used++;
+		}
+	} else
+		used++;
+	spin_unlock_irqrestore(&au1xxx_dbdma_spin_lock, flags);
+
+	if (used)
+		return 0;
+
+	/* Let's see if we can allocate a channel for it. */
+	ctp = NULL;
+	chan = 0;
+	spin_lock_irqsave(&au1xxx_dbdma_spin_lock, flags);
+	for (i = 0; i < NUM_DBDMA_CHANS; i++)
+		if (chan_tab_ptr[i] == NULL) {
+			/*
+			 * If kmalloc fails, it is caught below same
+			 * as a channel not available.
+			 */
+			ctp = kmalloc(sizeof(chan_tab_t), GFP_ATOMIC);
+			chan_tab_ptr[i] = ctp;
+			break;
+		}
+	spin_unlock_irqrestore(&au1xxx_dbdma_spin_lock, flags);
+
+	if (ctp != NULL) {
+		memset(ctp, 0, sizeof(chan_tab_t));
+		ctp->chan_index = chan = i;
+		dcp = KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR);
+		dcp += (0x0100 * chan);
+		ctp->chan_ptr = (au1x_dma_chan_t *)dcp;
+		cp = (au1x_dma_chan_t *)dcp;
+		ctp->chan_src = stp;
+		ctp->chan_dest = dtp;
+		ctp->chan_callback = callback;
+		ctp->chan_callparam = callparam;
+
+		/* Initialize channel configuration. */
+		i = 0;
+		if (stp->dev_intlevel)
+			i |= DDMA_CFG_SED;
+		if (stp->dev_intpolarity)
+			i |= DDMA_CFG_SP;
+		if (dtp->dev_intlevel)
+			i |= DDMA_CFG_DED;
+		if (dtp->dev_intpolarity)
+			i |= DDMA_CFG_DP;
+		if ((stp->dev_flags & DEV_FLAGS_SYNC) ||
+			(dtp->dev_flags & DEV_FLAGS_SYNC))
+				i |= DDMA_CFG_SYNC;
+		cp->ddma_cfg = i;
+		wmb(); /* drain writebuffer */
+
+		/*
+		 * Return a non-zero value that can be used to find the channel
+		 * information in subsequent operations.
+		 */
+		return (u32)(&chan_tab_ptr[chan]);
+	}
+
+	/* Release devices */
+	stp->dev_flags &= ~DEV_FLAGS_INUSE;
+	dtp->dev_flags &= ~DEV_FLAGS_INUSE;
+
+	return 0;
+}
+EXPORT_SYMBOL(au1xxx_dbdma_chan_alloc);
+
+/*
+ * Set the device width if source or destination is a FIFO.
+ * Should be 8, 16, or 32 bits.
+ */
+u32 au1xxx_dbdma_set_devwidth(u32 chanid, int bits)
+{
+	u32		rv;
+	chan_tab_t	*ctp;
+	dbdev_tab_t	*stp, *dtp;
+
+	ctp = *((chan_tab_t **)chanid);
+	stp = ctp->chan_src;
+	dtp = ctp->chan_dest;
+	rv = 0;
+
+	if (stp->dev_flags & DEV_FLAGS_IN) {	/* Source in fifo */
+		rv = stp->dev_devwidth;
+		stp->dev_devwidth = bits;
+	}
+	if (dtp->dev_flags & DEV_FLAGS_OUT) {	/* Destination out fifo */
+		rv = dtp->dev_devwidth;
+		dtp->dev_devwidth = bits;
+	}
+
+	return rv;
+}
+EXPORT_SYMBOL(au1xxx_dbdma_set_devwidth);
+
+/* Allocate a descriptor ring, initializing as much as possible. */
+u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries)
+{
+	int			i;
+	u32			desc_base, srcid, destid;
+	u32			cmd0, cmd1, src1, dest1;
+	u32			src0, dest0;
+	chan_tab_t		*ctp;
+	dbdev_tab_t		*stp, *dtp;
+	au1x_ddma_desc_t	*dp;
+
+	/*
+	 * I guess we could check this to be within the
+	 * range of the table......
+	 */
+	ctp = *((chan_tab_t **)chanid);
+	stp = ctp->chan_src;
+	dtp = ctp->chan_dest;
+
+	/*
+	 * The descriptors must be 32-byte aligned.  There is a
+	 * possibility the allocation will give us such an address,
+	 * and if we try that first we are likely to not waste larger
+	 * slabs of memory.
+	 */
+	desc_base = (u32)kmalloc(entries * sizeof(au1x_ddma_desc_t),
+				 GFP_KERNEL|GFP_DMA);
+	if (desc_base == 0)
+		return 0;
+
+	if (desc_base & 0x1f) {
+		/*
+		 * Lost....do it again, allocate extra, and round
+		 * the address base.
+		 */
+		kfree((const void *)desc_base);
+		i = entries * sizeof(au1x_ddma_desc_t);
+		i += (sizeof(au1x_ddma_desc_t) - 1);
+		desc_base = (u32)kmalloc(i, GFP_KERNEL|GFP_DMA);
+		if (desc_base == 0)
+			return 0;
+
+		ctp->cdb_membase = desc_base;
+		desc_base = ALIGN_ADDR(desc_base, sizeof(au1x_ddma_desc_t));
+	} else
+		ctp->cdb_membase = desc_base;
+
+	dp = (au1x_ddma_desc_t *)desc_base;
+
+	/* Keep track of the base descriptor. */
+	ctp->chan_desc_base = dp;
+
+	/* Initialize the rings with as much information as we know. */
+	srcid = stp->dev_id;
+	destid = dtp->dev_id;
+
+	cmd0 = cmd1 = src1 = dest1 = 0;
+	src0 = dest0 = 0;
+
+	cmd0 |= DSCR_CMD0_SID(srcid);
+	cmd0 |= DSCR_CMD0_DID(destid);
+	cmd0 |= DSCR_CMD0_IE | DSCR_CMD0_CV;
+	cmd0 |= DSCR_CMD0_ST(DSCR_CMD0_ST_NOCHANGE);
+
+	/* Is it mem to mem transfer? */
+	if (((DSCR_CUSTOM2DEV_ID(srcid) == DSCR_CMD0_THROTTLE) ||
+	     (DSCR_CUSTOM2DEV_ID(srcid) == DSCR_CMD0_ALWAYS)) &&
+	    ((DSCR_CUSTOM2DEV_ID(destid) == DSCR_CMD0_THROTTLE) ||
+	     (DSCR_CUSTOM2DEV_ID(destid) == DSCR_CMD0_ALWAYS)))
+		cmd0 |= DSCR_CMD0_MEM;
+
+	switch (stp->dev_devwidth) {
+	case 8:
+		cmd0 |= DSCR_CMD0_SW(DSCR_CMD0_BYTE);
+		break;
+	case 16:
+		cmd0 |= DSCR_CMD0_SW(DSCR_CMD0_HALFWORD);
+		break;
+	case 32:
+	default:
+		cmd0 |= DSCR_CMD0_SW(DSCR_CMD0_WORD);
+		break;
+	}
+
+	switch (dtp->dev_devwidth) {
+	case 8:
+		cmd0 |= DSCR_CMD0_DW(DSCR_CMD0_BYTE);
+		break;
+	case 16:
+		cmd0 |= DSCR_CMD0_DW(DSCR_CMD0_HALFWORD);
+		break;
+	case 32:
+	default:
+		cmd0 |= DSCR_CMD0_DW(DSCR_CMD0_WORD);
+		break;
+	}
+
+	/*
+	 * If the device is marked as an in/out FIFO, ensure it is
+	 * set non-coherent.
+	 */
+	if (stp->dev_flags & DEV_FLAGS_IN)
+		cmd0 |= DSCR_CMD0_SN;		/* Source in FIFO */
+	if (dtp->dev_flags & DEV_FLAGS_OUT)
+		cmd0 |= DSCR_CMD0_DN;		/* Destination out FIFO */
+
+	/*
+	 * Set up source1.  For now, assume no stride and increment.
+	 * A channel attribute update can change this later.
+	 */
+	switch (stp->dev_tsize) {
+	case 1:
+		src1 |= DSCR_SRC1_STS(DSCR_xTS_SIZE1);
+		break;
+	case 2:
+		src1 |= DSCR_SRC1_STS(DSCR_xTS_SIZE2);
+		break;
+	case 4:
+		src1 |= DSCR_SRC1_STS(DSCR_xTS_SIZE4);
+		break;
+	case 8:
+	default:
+		src1 |= DSCR_SRC1_STS(DSCR_xTS_SIZE8);
+		break;
+	}
+
+	/* If source input is FIFO, set static address. */
+	if (stp->dev_flags & DEV_FLAGS_IN) {
+		if (stp->dev_flags & DEV_FLAGS_BURSTABLE)
+			src1 |= DSCR_SRC1_SAM(DSCR_xAM_BURST);
+		else
+			src1 |= DSCR_SRC1_SAM(DSCR_xAM_STATIC);
+	}
+
+	if (stp->dev_physaddr)
+		src0 = stp->dev_physaddr;
+
+	/*
+	 * Set up dest1.  For now, assume no stride and increment.
+	 * A channel attribute update can change this later.
+	 */
+	switch (dtp->dev_tsize) {
+	case 1:
+		dest1 |= DSCR_DEST1_DTS(DSCR_xTS_SIZE1);
+		break;
+	case 2:
+		dest1 |= DSCR_DEST1_DTS(DSCR_xTS_SIZE2);
+		break;
+	case 4:
+		dest1 |= DSCR_DEST1_DTS(DSCR_xTS_SIZE4);
+		break;
+	case 8:
+	default:
+		dest1 |= DSCR_DEST1_DTS(DSCR_xTS_SIZE8);
+		break;
+	}
+
+	/* If destination output is FIFO, set static address. */
+	if (dtp->dev_flags & DEV_FLAGS_OUT) {
+		if (dtp->dev_flags & DEV_FLAGS_BURSTABLE)
+			dest1 |= DSCR_DEST1_DAM(DSCR_xAM_BURST);
+		else
+			dest1 |= DSCR_DEST1_DAM(DSCR_xAM_STATIC);
+	}
+
+	if (dtp->dev_physaddr)
+		dest0 = dtp->dev_physaddr;
+
+#if 0
+		printk(KERN_DEBUG "did:%x sid:%x cmd0:%x cmd1:%x source0:%x "
+				  "source1:%x dest0:%x dest1:%x\n",
+				  dtp->dev_id, stp->dev_id, cmd0, cmd1, src0,
+				  src1, dest0, dest1);
+#endif
+	for (i = 0; i < entries; i++) {
+		dp->dscr_cmd0 = cmd0;
+		dp->dscr_cmd1 = cmd1;
+		dp->dscr_source0 = src0;
+		dp->dscr_source1 = src1;
+		dp->dscr_dest0 = dest0;
+		dp->dscr_dest1 = dest1;
+		dp->dscr_stat = 0;
+		dp->sw_context = 0;
+		dp->sw_status = 0;
+		dp->dscr_nxtptr = DSCR_NXTPTR(virt_to_phys(dp + 1));
+		dp++;
+	}
+
+	/* Make last descrptor point to the first. */
+	dp--;
+	dp->dscr_nxtptr = DSCR_NXTPTR(virt_to_phys(ctp->chan_desc_base));
+	ctp->get_ptr = ctp->put_ptr = ctp->cur_ptr = ctp->chan_desc_base;
+
+	return (u32)ctp->chan_desc_base;
+}
+EXPORT_SYMBOL(au1xxx_dbdma_ring_alloc);
+
+/*
+ * Put a source buffer into the DMA ring.
+ * This updates the source pointer and byte count.  Normally used
+ * for memory to fifo transfers.
+ */
+u32 au1xxx_dbdma_put_source(u32 chanid, dma_addr_t buf, int nbytes, u32 flags)
+{
+	chan_tab_t		*ctp;
+	au1x_ddma_desc_t	*dp;
+
+	/*
+	 * I guess we could check this to be within the
+	 * range of the table......
+	 */
+	ctp = *(chan_tab_t **)chanid;
+
+	/*
+	 * We should have multiple callers for a particular channel,
+	 * an interrupt doesn't affect this pointer nor the descriptor,
+	 * so no locking should be needed.
+	 */
+	dp = ctp->put_ptr;
+
+	/*
+	 * If the descriptor is valid, we are way ahead of the DMA
+	 * engine, so just return an error condition.
+	 */
+	if (dp->dscr_cmd0 & DSCR_CMD0_V)
+		return 0;
+
+	/* Load up buffer address and byte count. */
+	dp->dscr_source0 = buf & ~0UL;
+	dp->dscr_cmd1 = nbytes;
+	/* Check flags */
+	if (flags & DDMA_FLAGS_IE)
+		dp->dscr_cmd0 |= DSCR_CMD0_IE;
+	if (flags & DDMA_FLAGS_NOIE)
+		dp->dscr_cmd0 &= ~DSCR_CMD0_IE;
+
+	/*
+	 * There is an errata on the Au1200/Au1550 parts that could result
+	 * in "stale" data being DMA'ed. It has to do with the snoop logic on
+	 * the cache eviction buffer.  DMA_NONCOHERENT is on by default for
+	 * these parts. If it is fixed in the future, these dma_cache_inv will
+	 * just be nothing more than empty macros. See io.h.
+	 */
+	dma_cache_wback_inv((unsigned long)buf, nbytes);
+	dp->dscr_cmd0 |= DSCR_CMD0_V;	/* Let it rip */
+	wmb(); /* drain writebuffer */
+	dma_cache_wback_inv((unsigned long)dp, sizeof(*dp));
+	ctp->chan_ptr->ddma_dbell = 0;
+
+	/* Get next descriptor pointer. */
+	ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
+
+	/* Return something non-zero. */
+	return nbytes;
+}
+EXPORT_SYMBOL(au1xxx_dbdma_put_source);
+
+/* Put a destination buffer into the DMA ring.
+ * This updates the destination pointer and byte count.  Normally used
+ * to place an empty buffer into the ring for fifo to memory transfers.
+ */
+u32 au1xxx_dbdma_put_dest(u32 chanid, dma_addr_t buf, int nbytes, u32 flags)
+{
+	chan_tab_t		*ctp;
+	au1x_ddma_desc_t	*dp;
+
+	/* I guess we could check this to be within the
+	 * range of the table......
+	 */
+	ctp = *((chan_tab_t **)chanid);
+
+	/* We should have multiple callers for a particular channel,
+	 * an interrupt doesn't affect this pointer nor the descriptor,
+	 * so no locking should be needed.
+	 */
+	dp = ctp->put_ptr;
+
+	/* If the descriptor is valid, we are way ahead of the DMA
+	 * engine, so just return an error condition.
+	 */
+	if (dp->dscr_cmd0 & DSCR_CMD0_V)
+		return 0;
+
+	/* Load up buffer address and byte count */
+
+	/* Check flags  */
+	if (flags & DDMA_FLAGS_IE)
+		dp->dscr_cmd0 |= DSCR_CMD0_IE;
+	if (flags & DDMA_FLAGS_NOIE)
+		dp->dscr_cmd0 &= ~DSCR_CMD0_IE;
+
+	dp->dscr_dest0 = buf & ~0UL;
+	dp->dscr_cmd1 = nbytes;
+#if 0
+	printk(KERN_DEBUG "cmd0:%x cmd1:%x source0:%x source1:%x dest0:%x dest1:%x\n",
+			  dp->dscr_cmd0, dp->dscr_cmd1, dp->dscr_source0,
+			  dp->dscr_source1, dp->dscr_dest0, dp->dscr_dest1);
+#endif
+	/*
+	 * There is an errata on the Au1200/Au1550 parts that could result in
+	 * "stale" data being DMA'ed. It has to do with the snoop logic on the
+	 * cache eviction buffer.  DMA_NONCOHERENT is on by default for these
+	 * parts. If it is fixed in the future, these dma_cache_inv will just
+	 * be nothing more than empty macros. See io.h.
+	 */
+	dma_cache_inv((unsigned long)buf, nbytes);
+	dp->dscr_cmd0 |= DSCR_CMD0_V;	/* Let it rip */
+	wmb(); /* drain writebuffer */
+	dma_cache_wback_inv((unsigned long)dp, sizeof(*dp));
+	ctp->chan_ptr->ddma_dbell = 0;
+
+	/* Get next descriptor pointer. */
+	ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
+
+	/* Return something non-zero. */
+	return nbytes;
+}
+EXPORT_SYMBOL(au1xxx_dbdma_put_dest);
+
+/*
+ * Get a destination buffer into the DMA ring.
+ * Normally used to get a full buffer from the ring during fifo
+ * to memory transfers.  This does not set the valid bit, you will
+ * have to put another destination buffer to keep the DMA going.
+ */
+u32 au1xxx_dbdma_get_dest(u32 chanid, void **buf, int *nbytes)
+{
+	chan_tab_t		*ctp;
+	au1x_ddma_desc_t	*dp;
+	u32			rv;
+
+	/*
+	 * I guess we could check this to be within the
+	 * range of the table......
+	 */
+	ctp = *((chan_tab_t **)chanid);
+
+	/*
+	 * We should have multiple callers for a particular channel,
+	 * an interrupt doesn't affect this pointer nor the descriptor,
+	 * so no locking should be needed.
+	 */
+	dp = ctp->get_ptr;
+
+	/*
+	 * If the descriptor is valid, we are way ahead of the DMA
+	 * engine, so just return an error condition.
+	 */
+	if (dp->dscr_cmd0 & DSCR_CMD0_V)
+		return 0;
+
+	/* Return buffer address and byte count. */
+	*buf = (void *)(phys_to_virt(dp->dscr_dest0));
+	*nbytes = dp->dscr_cmd1;
+	rv = dp->dscr_stat;
+
+	/* Get next descriptor pointer. */
+	ctp->get_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
+
+	/* Return something non-zero. */
+	return rv;
+}
+EXPORT_SYMBOL_GPL(au1xxx_dbdma_get_dest);
+
+void au1xxx_dbdma_stop(u32 chanid)
+{
+	chan_tab_t	*ctp;
+	au1x_dma_chan_t *cp;
+	int halt_timeout = 0;
+
+	ctp = *((chan_tab_t **)chanid);
+
+	cp = ctp->chan_ptr;
+	cp->ddma_cfg &= ~DDMA_CFG_EN;	/* Disable channel */
+	wmb(); /* drain writebuffer */
+	while (!(cp->ddma_stat & DDMA_STAT_H)) {
+		udelay(1);
+		halt_timeout++;
+		if (halt_timeout > 100) {
+			printk(KERN_WARNING "warning: DMA channel won't halt\n");
+			break;
+		}
+	}
+	/* clear current desc valid and doorbell */
+	cp->ddma_stat |= (DDMA_STAT_DB | DDMA_STAT_V);
+	wmb(); /* drain writebuffer */
+}
+EXPORT_SYMBOL(au1xxx_dbdma_stop);
+
+/*
+ * Start using the current descriptor pointer.  If the DBDMA encounters
+ * a non-valid descriptor, it will stop.  In this case, we can just
+ * continue by adding a buffer to the list and starting again.
+ */
+void au1xxx_dbdma_start(u32 chanid)
+{
+	chan_tab_t	*ctp;
+	au1x_dma_chan_t *cp;
+
+	ctp = *((chan_tab_t **)chanid);
+	cp = ctp->chan_ptr;
+	cp->ddma_desptr = virt_to_phys(ctp->cur_ptr);
+	cp->ddma_cfg |= DDMA_CFG_EN;	/* Enable channel */
+	wmb(); /* drain writebuffer */
+	cp->ddma_dbell = 0;
+	wmb(); /* drain writebuffer */
+}
+EXPORT_SYMBOL(au1xxx_dbdma_start);
+
+void au1xxx_dbdma_reset(u32 chanid)
+{
+	chan_tab_t		*ctp;
+	au1x_ddma_desc_t	*dp;
+
+	au1xxx_dbdma_stop(chanid);
+
+	ctp = *((chan_tab_t **)chanid);
+	ctp->get_ptr = ctp->put_ptr = ctp->cur_ptr = ctp->chan_desc_base;
+
+	/* Run through the descriptors and reset the valid indicator. */
+	dp = ctp->chan_desc_base;
+
+	do {
+		dp->dscr_cmd0 &= ~DSCR_CMD0_V;
+		/*
+		 * Reset our software status -- this is used to determine
+		 * if a descriptor is in use by upper level software. Since
+		 * posting can reset 'V' bit.
+		 */
+		dp->sw_status = 0;
+		dp = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
+	} while (dp != ctp->chan_desc_base);
+}
+EXPORT_SYMBOL(au1xxx_dbdma_reset);
+
+u32 au1xxx_get_dma_residue(u32 chanid)
+{
+	chan_tab_t	*ctp;
+	au1x_dma_chan_t *cp;
+	u32		rv;
+
+	ctp = *((chan_tab_t **)chanid);
+	cp = ctp->chan_ptr;
+
+	/* This is only valid if the channel is stopped. */
+	rv = cp->ddma_bytecnt;
+	wmb(); /* drain writebuffer */
+
+	return rv;
+}
+EXPORT_SYMBOL_GPL(au1xxx_get_dma_residue);
+
+void au1xxx_dbdma_chan_free(u32 chanid)
+{
+	chan_tab_t	*ctp;
+	dbdev_tab_t	*stp, *dtp;
+
+	ctp = *((chan_tab_t **)chanid);
+	stp = ctp->chan_src;
+	dtp = ctp->chan_dest;
+
+	au1xxx_dbdma_stop(chanid);
+
+	kfree((void *)ctp->cdb_membase);
+
+	stp->dev_flags &= ~DEV_FLAGS_INUSE;
+	dtp->dev_flags &= ~DEV_FLAGS_INUSE;
+	chan_tab_ptr[ctp->chan_index] = NULL;
+
+	kfree(ctp);
+}
+EXPORT_SYMBOL(au1xxx_dbdma_chan_free);
+
+static irqreturn_t dbdma_interrupt(int irq, void *dev_id)
+{
+	u32 intstat;
+	u32 chan_index;
+	chan_tab_t		*ctp;
+	au1x_ddma_desc_t	*dp;
+	au1x_dma_chan_t *cp;
+
+	intstat = dbdma_gptr->ddma_intstat;
+	wmb(); /* drain writebuffer */
+	chan_index = __ffs(intstat);
+
+	ctp = chan_tab_ptr[chan_index];
+	cp = ctp->chan_ptr;
+	dp = ctp->cur_ptr;
+
+	/* Reset interrupt. */
+	cp->ddma_irq = 0;
+	wmb(); /* drain writebuffer */
+
+	if (ctp->chan_callback)
+		ctp->chan_callback(irq, ctp->chan_callparam);
+
+	ctp->cur_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
+	return IRQ_RETVAL(1);
+}
+
+void au1xxx_dbdma_dump(u32 chanid)
+{
+	chan_tab_t	 *ctp;
+	au1x_ddma_desc_t *dp;
+	dbdev_tab_t	 *stp, *dtp;
+	au1x_dma_chan_t	 *cp;
+	u32 i		 = 0;
+
+	ctp = *((chan_tab_t **)chanid);
+	stp = ctp->chan_src;
+	dtp = ctp->chan_dest;
+	cp = ctp->chan_ptr;
+
+	printk(KERN_DEBUG "Chan %x, stp %x (dev %d)  dtp %x (dev %d)\n",
+			  (u32)ctp, (u32)stp, stp - dbdev_tab, (u32)dtp,
+			  dtp - dbdev_tab);
+	printk(KERN_DEBUG "desc base %x, get %x, put %x, cur %x\n",
+			  (u32)(ctp->chan_desc_base), (u32)(ctp->get_ptr),
+			  (u32)(ctp->put_ptr), (u32)(ctp->cur_ptr));
+
+	printk(KERN_DEBUG "dbdma chan %x\n", (u32)cp);
+	printk(KERN_DEBUG "cfg %08x, desptr %08x, statptr %08x\n",
+			  cp->ddma_cfg, cp->ddma_desptr, cp->ddma_statptr);
+	printk(KERN_DEBUG "dbell %08x, irq %08x, stat %08x, bytecnt %08x\n",
+			  cp->ddma_dbell, cp->ddma_irq, cp->ddma_stat,
+			  cp->ddma_bytecnt);
+
+	/* Run through the descriptors */
+	dp = ctp->chan_desc_base;
+
+	do {
+		printk(KERN_DEBUG "Dp[%d]= %08x, cmd0 %08x, cmd1 %08x\n",
+				  i++, (u32)dp, dp->dscr_cmd0, dp->dscr_cmd1);
+		printk(KERN_DEBUG "src0 %08x, src1 %08x, dest0 %08x, dest1 %08x\n",
+				  dp->dscr_source0, dp->dscr_source1,
+				  dp->dscr_dest0, dp->dscr_dest1);
+		printk(KERN_DEBUG "stat %08x, nxtptr %08x\n",
+				  dp->dscr_stat, dp->dscr_nxtptr);
+		dp = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
+	} while (dp != ctp->chan_desc_base);
+}
+
+/* Put a descriptor into the DMA ring.
+ * This updates the source/destination pointers and byte count.
+ */
+u32 au1xxx_dbdma_put_dscr(u32 chanid, au1x_ddma_desc_t *dscr)
+{
+	chan_tab_t *ctp;
+	au1x_ddma_desc_t *dp;
+	u32 nbytes = 0;
+
+	/*
+	 * I guess we could check this to be within the
+	 * range of the table......
+	 */
+	ctp = *((chan_tab_t **)chanid);
+
+	/*
+	 * We should have multiple callers for a particular channel,
+	 * an interrupt doesn't affect this pointer nor the descriptor,
+	 * so no locking should be needed.
+	 */
+	dp = ctp->put_ptr;
+
+	/*
+	 * If the descriptor is valid, we are way ahead of the DMA
+	 * engine, so just return an error condition.
+	 */
+	if (dp->dscr_cmd0 & DSCR_CMD0_V)
+		return 0;
+
+	/* Load up buffer addresses and byte count. */
+	dp->dscr_dest0 = dscr->dscr_dest0;
+	dp->dscr_source0 = dscr->dscr_source0;
+	dp->dscr_dest1 = dscr->dscr_dest1;
+	dp->dscr_source1 = dscr->dscr_source1;
+	dp->dscr_cmd1 = dscr->dscr_cmd1;
+	nbytes = dscr->dscr_cmd1;
+	/* Allow the caller to specifiy if an interrupt is generated */
+	dp->dscr_cmd0 &= ~DSCR_CMD0_IE;
+	dp->dscr_cmd0 |= dscr->dscr_cmd0 | DSCR_CMD0_V;
+	ctp->chan_ptr->ddma_dbell = 0;
+
+	/* Get next descriptor pointer. */
+	ctp->put_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr));
+
+	/* Return something non-zero. */
+	return nbytes;
+}
+
+
+static unsigned long alchemy_dbdma_pm_data[NUM_DBDMA_CHANS + 1][6];
+
+static int alchemy_dbdma_suspend(void)
+{
+	int i;
+	void __iomem *addr;
+
+	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);
+	alchemy_dbdma_pm_data[0][0] = __raw_readl(addr + 0x00);
+	alchemy_dbdma_pm_data[0][1] = __raw_readl(addr + 0x04);
+	alchemy_dbdma_pm_data[0][2] = __raw_readl(addr + 0x08);
+	alchemy_dbdma_pm_data[0][3] = __raw_readl(addr + 0x0c);
+
+	/* save channel configurations */
+	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR);
+	for (i = 1; i <= NUM_DBDMA_CHANS; i++) {
+		alchemy_dbdma_pm_data[i][0] = __raw_readl(addr + 0x00);
+		alchemy_dbdma_pm_data[i][1] = __raw_readl(addr + 0x04);
+		alchemy_dbdma_pm_data[i][2] = __raw_readl(addr + 0x08);
+		alchemy_dbdma_pm_data[i][3] = __raw_readl(addr + 0x0c);
+		alchemy_dbdma_pm_data[i][4] = __raw_readl(addr + 0x10);
+		alchemy_dbdma_pm_data[i][5] = __raw_readl(addr + 0x14);
+
+		/* halt channel */
+		__raw_writel(alchemy_dbdma_pm_data[i][0] & ~1, addr + 0x00);
+		wmb();
+		while (!(__raw_readl(addr + 0x14) & 1))
+			wmb();
+
+		addr += 0x100;	/* next channel base */
+	}
+	/* disable channel interrupts */
+	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);
+	__raw_writel(0, addr + 0x0c);
+	wmb();
+
+	return 0;
+}
+
+static void alchemy_dbdma_resume(void)
+{
+	int i;
+	void __iomem *addr;
+
+	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_CONF_PHYS_ADDR);
+	__raw_writel(alchemy_dbdma_pm_data[0][0], addr + 0x00);
+	__raw_writel(alchemy_dbdma_pm_data[0][1], addr + 0x04);
+	__raw_writel(alchemy_dbdma_pm_data[0][2], addr + 0x08);
+	__raw_writel(alchemy_dbdma_pm_data[0][3], addr + 0x0c);
+
+	/* restore channel configurations */
+	addr = (void __iomem *)KSEG1ADDR(AU1550_DBDMA_PHYS_ADDR);
+	for (i = 1; i <= NUM_DBDMA_CHANS; i++) {
+		__raw_writel(alchemy_dbdma_pm_data[i][0], addr + 0x00);
+		__raw_writel(alchemy_dbdma_pm_data[i][1], addr + 0x04);
+		__raw_writel(alchemy_dbdma_pm_data[i][2], addr + 0x08);
+		__raw_writel(alchemy_dbdma_pm_data[i][3], addr + 0x0c);
+		__raw_writel(alchemy_dbdma_pm_data[i][4], addr + 0x10);
+		__raw_writel(alchemy_dbdma_pm_data[i][5], addr + 0x14);
+		wmb();
+		addr += 0x100;	/* next channel base */
+	}
+}
+
+static struct syscore_ops alchemy_dbdma_syscore_ops = {
+	.suspend	= alchemy_dbdma_suspend,
+	.resume		= alchemy_dbdma_resume,
+};
+
+static int __init dbdma_setup(unsigned int irq, dbdev_tab_t *idtable)
+{
+	int ret;
+
+	dbdev_tab = kzalloc(sizeof(dbdev_tab_t) * DBDEV_TAB_SIZE, GFP_KERNEL);
+	if (!dbdev_tab)
+		return -ENOMEM;
+
+	memcpy(dbdev_tab, idtable, 32 * sizeof(dbdev_tab_t));
+	for (ret = 32; ret < DBDEV_TAB_SIZE; ret++)
+		dbdev_tab[ret].dev_id = ~0;
+
+	dbdma_gptr->ddma_config = 0;
+	dbdma_gptr->ddma_throttle = 0;
+	dbdma_gptr->ddma_inten = 0xffff;
+	wmb(); /* drain writebuffer */
+
+	ret = request_irq(irq, dbdma_interrupt, 0, "dbdma", (void *)dbdma_gptr);
+	if (ret)
+		printk(KERN_ERR "Cannot grab DBDMA interrupt!\n");
+	else {
+		dbdma_initialized = 1;
+		register_syscore_ops(&alchemy_dbdma_syscore_ops);
+	}
+
+	return ret;
+}
+
+static int __init alchemy_dbdma_init(void)
+{
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1550:
+		return dbdma_setup(AU1550_DDMA_INT, au1550_dbdev_tab);
+	case ALCHEMY_CPU_AU1200:
+		return dbdma_setup(AU1200_DDMA_INT, au1200_dbdev_tab);
+	case ALCHEMY_CPU_AU1300:
+		return dbdma_setup(AU1300_DDMA_INT, au1300_dbdev_tab);
+	}
+	return 0;
+}
+subsys_initcall(alchemy_dbdma_init);
diff --git a/kernel/arch/mips/alchemy/common/dma.c b/kernel/arch/mips/alchemy/common/dma.c
new file mode 100644
index 000000000..4fb6207b8
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/dma.c
@@ -0,0 +1,265 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *      A DMA channel allocator for Au1x00. API is modeled loosely off of
+ *      linux/kernel/dma.c.
+ *
+ * Copyright 2000, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
+ * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1000_dma.h>
+
+/*
+ * A note on resource allocation:
+ *
+ * All drivers needing DMA channels, should allocate and release them
+ * through the public routines `request_dma()' and `free_dma()'.
+ *
+ * In order to avoid problems, all processes should allocate resources in
+ * the same sequence and release them in the reverse order.
+ *
+ * So, when allocating DMAs and IRQs, first allocate the DMA, then the IRQ.
+ * When releasing them, first release the IRQ, then release the DMA. The
+ * main reason for this order is that, if you are requesting the DMA buffer
+ * done interrupt, you won't know the irq number until the DMA channel is
+ * returned from request_dma.
+ */
+
+/* DMA Channel register block spacing */
+#define DMA_CHANNEL_LEN		0x00000100
+
+DEFINE_SPINLOCK(au1000_dma_spin_lock);
+
+struct dma_chan au1000_dma_table[NUM_AU1000_DMA_CHANNELS] = {
+      {.dev_id = -1,},
+      {.dev_id = -1,},
+      {.dev_id = -1,},
+      {.dev_id = -1,},
+      {.dev_id = -1,},
+      {.dev_id = -1,},
+      {.dev_id = -1,},
+      {.dev_id = -1,}
+};
+EXPORT_SYMBOL(au1000_dma_table);
+
+/* Device FIFO addresses and default DMA modes */
+static const struct dma_dev {
+	unsigned int fifo_addr;
+	unsigned int dma_mode;
+} dma_dev_table[DMA_NUM_DEV] = {
+	{ AU1000_UART0_PHYS_ADDR + 0x04, DMA_DW8 },		/* UART0_TX */
+	{ AU1000_UART0_PHYS_ADDR + 0x00, DMA_DW8 | DMA_DR },	/* UART0_RX */
+	{ 0, 0 },	/* DMA_REQ0 */
+	{ 0, 0 },	/* DMA_REQ1 */
+	{ AU1000_AC97_PHYS_ADDR + 0x08, DMA_DW16 },		/* AC97 TX c */
+	{ AU1000_AC97_PHYS_ADDR + 0x08, DMA_DW16 | DMA_DR },	/* AC97 RX c */
+	{ AU1000_UART3_PHYS_ADDR + 0x04, DMA_DW8 | DMA_NC },	/* UART3_TX */
+	{ AU1000_UART3_PHYS_ADDR + 0x00, DMA_DW8 | DMA_NC | DMA_DR }, /* UART3_RX */
+	{ AU1000_USB_UDC_PHYS_ADDR + 0x00, DMA_DW8 | DMA_NC | DMA_DR }, /* EP0RD */
+	{ AU1000_USB_UDC_PHYS_ADDR + 0x04, DMA_DW8 | DMA_NC }, /* EP0WR */
+	{ AU1000_USB_UDC_PHYS_ADDR + 0x08, DMA_DW8 | DMA_NC }, /* EP2WR */
+	{ AU1000_USB_UDC_PHYS_ADDR + 0x0c, DMA_DW8 | DMA_NC }, /* EP3WR */
+	{ AU1000_USB_UDC_PHYS_ADDR + 0x10, DMA_DW8 | DMA_NC | DMA_DR }, /* EP4RD */
+	{ AU1000_USB_UDC_PHYS_ADDR + 0x14, DMA_DW8 | DMA_NC | DMA_DR }, /* EP5RD */
+	/* on Au1500, these 2 are DMA_REQ2/3 (GPIO208/209) instead! */
+	{ AU1000_I2S_PHYS_ADDR + 0x00, DMA_DW32 | DMA_NC},	/* I2S TX */
+	{ AU1000_I2S_PHYS_ADDR + 0x00, DMA_DW32 | DMA_NC | DMA_DR}, /* I2S RX */
+};
+
+int au1000_dma_read_proc(char *buf, char **start, off_t fpos,
+			 int length, int *eof, void *data)
+{
+	int i, len = 0;
+	struct dma_chan *chan;
+
+	for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++) {
+		chan = get_dma_chan(i);
+		if (chan != NULL)
+			len += sprintf(buf + len, "%2d: %s\n",
+				       i, chan->dev_str);
+	}
+
+	if (fpos >= len) {
+		*start = buf;
+		*eof = 1;
+		return 0;
+	}
+	*start = buf + fpos;
+	len -= fpos;
+	if (len > length)
+		return length;
+	*eof = 1;
+	return len;
+}
+
+/* Device FIFO addresses and default DMA modes - 2nd bank */
+static const struct dma_dev dma_dev_table_bank2[DMA_NUM_DEV_BANK2] = {
+	{ AU1100_SD0_PHYS_ADDR + 0x00, DMA_DS | DMA_DW8 },		/* coherent */
+	{ AU1100_SD0_PHYS_ADDR + 0x04, DMA_DS | DMA_DW8 | DMA_DR },	/* coherent */
+	{ AU1100_SD1_PHYS_ADDR + 0x00, DMA_DS | DMA_DW8 },		/* coherent */
+	{ AU1100_SD1_PHYS_ADDR + 0x04, DMA_DS | DMA_DW8 | DMA_DR }	/* coherent */
+};
+
+void dump_au1000_dma_channel(unsigned int dmanr)
+{
+	struct dma_chan *chan;
+
+	if (dmanr >= NUM_AU1000_DMA_CHANNELS)
+		return;
+	chan = &au1000_dma_table[dmanr];
+
+	printk(KERN_INFO "Au1000 DMA%d Register Dump:\n", dmanr);
+	printk(KERN_INFO "  mode = 0x%08x\n",
+	       __raw_readl(chan->io + DMA_MODE_SET));
+	printk(KERN_INFO "  addr = 0x%08x\n",
+	       __raw_readl(chan->io + DMA_PERIPHERAL_ADDR));
+	printk(KERN_INFO "  start0 = 0x%08x\n",
+	       __raw_readl(chan->io + DMA_BUFFER0_START));
+	printk(KERN_INFO "  start1 = 0x%08x\n",
+	       __raw_readl(chan->io + DMA_BUFFER1_START));
+	printk(KERN_INFO "  count0 = 0x%08x\n",
+	       __raw_readl(chan->io + DMA_BUFFER0_COUNT));
+	printk(KERN_INFO "  count1 = 0x%08x\n",
+	       __raw_readl(chan->io + DMA_BUFFER1_COUNT));
+}
+
+/*
+ * Finds a free channel, and binds the requested device to it.
+ * Returns the allocated channel number, or negative on error.
+ * Requests the DMA done IRQ if irqhandler != NULL.
+ */
+int request_au1000_dma(int dev_id, const char *dev_str,
+		       irq_handler_t irqhandler,
+		       unsigned long irqflags,
+		       void *irq_dev_id)
+{
+	struct dma_chan *chan;
+	const struct dma_dev *dev;
+	int i, ret;
+
+	if (alchemy_get_cputype() == ALCHEMY_CPU_AU1100) {
+		if (dev_id < 0 || dev_id >= (DMA_NUM_DEV + DMA_NUM_DEV_BANK2))
+			return -EINVAL;
+	} else {
+		if (dev_id < 0 || dev_id >= DMA_NUM_DEV)
+			return -EINVAL;
+	}
+
+	for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++)
+		if (au1000_dma_table[i].dev_id < 0)
+			break;
+
+	if (i == NUM_AU1000_DMA_CHANNELS)
+		return -ENODEV;
+
+	chan = &au1000_dma_table[i];
+
+	if (dev_id >= DMA_NUM_DEV) {
+		dev_id -= DMA_NUM_DEV;
+		dev = &dma_dev_table_bank2[dev_id];
+	} else
+		dev = &dma_dev_table[dev_id];
+
+	if (irqhandler) {
+		chan->irq_dev = irq_dev_id;
+		ret = request_irq(chan->irq, irqhandler, irqflags, dev_str,
+				  chan->irq_dev);
+		if (ret) {
+			chan->irq_dev = NULL;
+			return ret;
+		}
+	} else {
+		chan->irq_dev = NULL;
+	}
+
+	/* fill it in */
+	chan->io = (void __iomem *)(KSEG1ADDR(AU1000_DMA_PHYS_ADDR) +
+			i * DMA_CHANNEL_LEN);
+	chan->dev_id = dev_id;
+	chan->dev_str = dev_str;
+	chan->fifo_addr = dev->fifo_addr;
+	chan->mode = dev->dma_mode;
+
+	/* initialize the channel before returning */
+	init_dma(i);
+
+	return i;
+}
+EXPORT_SYMBOL(request_au1000_dma);
+
+void free_au1000_dma(unsigned int dmanr)
+{
+	struct dma_chan *chan = get_dma_chan(dmanr);
+
+	if (!chan) {
+		printk(KERN_ERR "Error trying to free DMA%d\n", dmanr);
+		return;
+	}
+
+	disable_dma(dmanr);
+	if (chan->irq_dev)
+		free_irq(chan->irq, chan->irq_dev);
+
+	chan->irq_dev = NULL;
+	chan->dev_id = -1;
+}
+EXPORT_SYMBOL(free_au1000_dma);
+
+static int __init au1000_dma_init(void)
+{
+	int base, i;
+
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+		base = AU1000_DMA_INT_BASE;
+		break;
+	case ALCHEMY_CPU_AU1500:
+		base = AU1500_DMA_INT_BASE;
+		break;
+	case ALCHEMY_CPU_AU1100:
+		base = AU1100_DMA_INT_BASE;
+		break;
+	default:
+		goto out;
+	}
+
+	for (i = 0; i < NUM_AU1000_DMA_CHANNELS; i++)
+		au1000_dma_table[i].irq = base + i;
+
+	printk(KERN_INFO "Alchemy DMA initialized\n");
+
+out:
+	return 0;
+}
+arch_initcall(au1000_dma_init);
diff --git a/kernel/arch/mips/alchemy/common/gpiolib.c b/kernel/arch/mips/alchemy/common/gpiolib.c
new file mode 100644
index 000000000..f9bc4f520
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/gpiolib.c
@@ -0,0 +1,175 @@
+/*
+ *  Copyright (C) 2007-2009, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
+ *	GPIOLIB support for Alchemy chips.
+ *
+ *  This program is free software; you can redistribute	 it and/or modify it
+ *  under  the terms of	 the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the	License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED	  ``AS	IS'' AND   ANY	EXPRESS OR IMPLIED
+ *  WARRANTIES,	  INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO	EVENT  SHALL   THE AUTHOR  BE	 LIABLE FOR ANY	  DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED	  TO, PROCUREMENT OF  SUBSTITUTE GOODS	OR SERVICES; LOSS OF
+ *  USE, DATA,	OR PROFITS; OR	BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN	 CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Notes :
+ *	This file must ONLY be built when CONFIG_GPIOLIB=y and
+ *	 CONFIG_ALCHEMY_GPIO_INDIRECT=n, otherwise compilation will fail!
+ *	au1000 SoC have only one GPIO block : GPIO1
+ *	Au1100, Au15x0, Au12x0 have a second one : GPIO2
+ *	Au1300 is totally different: 1 block with up to 128 GPIOs
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/gpio.h>
+#include <asm/mach-au1x00/gpio-au1000.h>
+#include <asm/mach-au1x00/gpio-au1300.h>
+
+static int gpio2_get(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio2_get_value(offset + ALCHEMY_GPIO2_BASE);
+}
+
+static void gpio2_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	alchemy_gpio2_set_value(offset + ALCHEMY_GPIO2_BASE, value);
+}
+
+static int gpio2_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio2_direction_input(offset + ALCHEMY_GPIO2_BASE);
+}
+
+static int gpio2_direction_output(struct gpio_chip *chip, unsigned offset,
+				  int value)
+{
+	return alchemy_gpio2_direction_output(offset + ALCHEMY_GPIO2_BASE,
+						value);
+}
+
+static int gpio2_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio2_to_irq(offset + ALCHEMY_GPIO2_BASE);
+}
+
+
+static int gpio1_get(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio1_get_value(offset + ALCHEMY_GPIO1_BASE);
+}
+
+static void gpio1_set(struct gpio_chip *chip,
+				unsigned offset, int value)
+{
+	alchemy_gpio1_set_value(offset + ALCHEMY_GPIO1_BASE, value);
+}
+
+static int gpio1_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio1_direction_input(offset + ALCHEMY_GPIO1_BASE);
+}
+
+static int gpio1_direction_output(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	return alchemy_gpio1_direction_output(offset + ALCHEMY_GPIO1_BASE,
+					     value);
+}
+
+static int gpio1_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio1_to_irq(offset + ALCHEMY_GPIO1_BASE);
+}
+
+struct gpio_chip alchemy_gpio_chip[] = {
+	[0] = {
+		.label			= "alchemy-gpio1",
+		.direction_input	= gpio1_direction_input,
+		.direction_output	= gpio1_direction_output,
+		.get			= gpio1_get,
+		.set			= gpio1_set,
+		.to_irq			= gpio1_to_irq,
+		.base			= ALCHEMY_GPIO1_BASE,
+		.ngpio			= ALCHEMY_GPIO1_NUM,
+	},
+	[1] = {
+		.label			= "alchemy-gpio2",
+		.direction_input	= gpio2_direction_input,
+		.direction_output	= gpio2_direction_output,
+		.get			= gpio2_get,
+		.set			= gpio2_set,
+		.to_irq			= gpio2_to_irq,
+		.base			= ALCHEMY_GPIO2_BASE,
+		.ngpio			= ALCHEMY_GPIO2_NUM,
+	},
+};
+
+static int alchemy_gpic_get(struct gpio_chip *chip, unsigned int off)
+{
+	return au1300_gpio_get_value(off + AU1300_GPIO_BASE);
+}
+
+static void alchemy_gpic_set(struct gpio_chip *chip, unsigned int off, int v)
+{
+	au1300_gpio_set_value(off + AU1300_GPIO_BASE, v);
+}
+
+static int alchemy_gpic_dir_input(struct gpio_chip *chip, unsigned int off)
+{
+	return au1300_gpio_direction_input(off + AU1300_GPIO_BASE);
+}
+
+static int alchemy_gpic_dir_output(struct gpio_chip *chip, unsigned int off,
+				   int v)
+{
+	return au1300_gpio_direction_output(off + AU1300_GPIO_BASE, v);
+}
+
+static int alchemy_gpic_gpio_to_irq(struct gpio_chip *chip, unsigned int off)
+{
+	return au1300_gpio_to_irq(off + AU1300_GPIO_BASE);
+}
+
+static struct gpio_chip au1300_gpiochip = {
+	.label			= "alchemy-gpic",
+	.direction_input	= alchemy_gpic_dir_input,
+	.direction_output	= alchemy_gpic_dir_output,
+	.get			= alchemy_gpic_get,
+	.set			= alchemy_gpic_set,
+	.to_irq			= alchemy_gpic_gpio_to_irq,
+	.base			= AU1300_GPIO_BASE,
+	.ngpio			= AU1300_GPIO_NUM,
+};
+
+static int __init alchemy_gpiochip_init(void)
+{
+	int ret = 0;
+
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+		ret = gpiochip_add(&alchemy_gpio_chip[0]);
+		break;
+	case ALCHEMY_CPU_AU1500...ALCHEMY_CPU_AU1200:
+		ret = gpiochip_add(&alchemy_gpio_chip[0]);
+		ret |= gpiochip_add(&alchemy_gpio_chip[1]);
+		break;
+	case ALCHEMY_CPU_AU1300:
+		ret = gpiochip_add(&au1300_gpiochip);
+		break;
+	}
+	return ret;
+}
+arch_initcall(alchemy_gpiochip_init);
diff --git a/kernel/arch/mips/alchemy/common/irq.c b/kernel/arch/mips/alchemy/common/irq.c
new file mode 100644
index 000000000..6cb60abfd
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/irq.c
@@ -0,0 +1,996 @@
+/*
+ * Copyright 2001, 2007-2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
+ *
+ * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
+ *
+ *  This program is free software; you can redistribute	 it and/or modify it
+ *  under  the terms of	 the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the	License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED	  ``AS	IS'' AND   ANY	EXPRESS OR IMPLIED
+ *  WARRANTIES,	  INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO	EVENT  SHALL   THE AUTHOR  BE	 LIABLE FOR ANY	  DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED	  TO, PROCUREMENT OF  SUBSTITUTE GOODS	OR SERVICES; LOSS OF
+ *  USE, DATA,	OR PROFITS; OR	BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN	 CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/syscore_ops.h>
+
+#include <asm/irq_cpu.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio-au1300.h>
+
+/* Interrupt Controller register offsets */
+#define IC_CFG0RD	0x40
+#define IC_CFG0SET	0x40
+#define IC_CFG0CLR	0x44
+#define IC_CFG1RD	0x48
+#define IC_CFG1SET	0x48
+#define IC_CFG1CLR	0x4C
+#define IC_CFG2RD	0x50
+#define IC_CFG2SET	0x50
+#define IC_CFG2CLR	0x54
+#define IC_REQ0INT	0x54
+#define IC_SRCRD	0x58
+#define IC_SRCSET	0x58
+#define IC_SRCCLR	0x5C
+#define IC_REQ1INT	0x5C
+#define IC_ASSIGNRD	0x60
+#define IC_ASSIGNSET	0x60
+#define IC_ASSIGNCLR	0x64
+#define IC_WAKERD	0x68
+#define IC_WAKESET	0x68
+#define IC_WAKECLR	0x6C
+#define IC_MASKRD	0x70
+#define IC_MASKSET	0x70
+#define IC_MASKCLR	0x74
+#define IC_RISINGRD	0x78
+#define IC_RISINGCLR	0x78
+#define IC_FALLINGRD	0x7C
+#define IC_FALLINGCLR	0x7C
+#define IC_TESTBIT	0x80
+
+/* per-processor fixed function irqs */
+struct alchemy_irqmap {
+	int irq;	/* linux IRQ number */
+	int type;	/* IRQ_TYPE_ */
+	int prio;	/* irq priority, 0 highest, 3 lowest */
+	int internal;	/* GPIC: internal source (no ext. pin)? */
+};
+
+static int au1x_ic_settype(struct irq_data *d, unsigned int type);
+static int au1300_gpic_settype(struct irq_data *d, unsigned int type);
+
+
+/* NOTE on interrupt priorities: The original writers of this code said:
+ *
+ * Because of the tight timing of SETUP token to reply transactions,
+ * the USB devices-side packet complete interrupt (USB_DEV_REQ_INT)
+ * needs the highest priority.
+ */
+struct alchemy_irqmap au1000_irqmap[] __initdata = {
+	{ AU1000_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_UART1_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_UART2_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_UART3_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_SSI0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_SSI1_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_DMA_INT_BASE,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_DMA_INT_BASE+1,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_DMA_INT_BASE+2,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_DMA_INT_BASE+3,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_DMA_INT_BASE+4,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_DMA_INT_BASE+5,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_DMA_INT_BASE+6,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_DMA_INT_BASE+7,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0, 0 },
+	{ AU1000_IRDA_TX_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_IRDA_RX_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH,	0, 0 },
+	{ AU1000_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_USB_HOST_INT,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1000_ACSYNC_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1000_MAC0_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_MAC1_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1000_AC97C_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ -1, },
+};
+
+struct alchemy_irqmap au1500_irqmap[] __initdata = {
+	{ AU1500_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_PCI_INTA,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1500_PCI_INTB,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1500_UART3_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_PCI_INTC,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1500_PCI_INTD,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1500_DMA_INT_BASE,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_DMA_INT_BASE+1,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_DMA_INT_BASE+2,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_DMA_INT_BASE+3,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_DMA_INT_BASE+4,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_DMA_INT_BASE+5,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_DMA_INT_BASE+6,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_DMA_INT_BASE+7,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0, 0 },
+	{ AU1500_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH,	0, 0 },
+	{ AU1500_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_USB_HOST_INT,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1500_ACSYNC_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1500_MAC0_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_MAC1_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1500_AC97C_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ -1, },
+};
+
+struct alchemy_irqmap au1100_irqmap[] __initdata = {
+	{ AU1100_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_UART1_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_SD_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_UART3_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_SSI0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_SSI1_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_DMA_INT_BASE,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_DMA_INT_BASE+1,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_DMA_INT_BASE+2,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_DMA_INT_BASE+3,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_DMA_INT_BASE+4,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_DMA_INT_BASE+5,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_DMA_INT_BASE+6,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_DMA_INT_BASE+7,  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0, 0 },
+	{ AU1100_IRDA_TX_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_IRDA_RX_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH,	0, 0 },
+	{ AU1100_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_USB_HOST_INT,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1100_ACSYNC_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1100_MAC0_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_LCD_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1100_AC97C_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ -1, },
+};
+
+struct alchemy_irqmap au1550_irqmap[] __initdata = {
+	{ AU1550_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_PCI_INTA,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1550_PCI_INTB,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1550_DDMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_CRYPTO_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_PCI_INTC,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1550_PCI_INTD,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1550_PCI_RST_INT,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1550_UART1_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_UART3_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_PSC0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_PSC1_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_PSC2_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_PSC3_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0, 0 },
+	{ AU1550_NAND_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_USB_DEV_REQ_INT, IRQ_TYPE_LEVEL_HIGH,	0, 0 },
+	{ AU1550_USB_DEV_SUS_INT, IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1550_USB_HOST_INT,	  IRQ_TYPE_LEVEL_LOW,	1, 0 },
+	{ AU1550_MAC0_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1550_MAC1_DMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ -1, },
+};
+
+struct alchemy_irqmap au1200_irqmap[] __initdata = {
+	{ AU1200_UART0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_SWT_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_SD_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_DDMA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_MAE_BE_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_UART1_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_MAE_FE_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_PSC0_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_PSC1_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_AES_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_CAMERA_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_TOY_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_TOY_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_TOY_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_TOY_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_RTC_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_RTC_MATCH0_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_RTC_MATCH1_INT,  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_RTC_MATCH2_INT,  IRQ_TYPE_EDGE_RISING, 0, 0 },
+	{ AU1200_NAND_INT,	  IRQ_TYPE_EDGE_RISING, 1, 0 },
+	{ AU1200_USB_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_LCD_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ AU1200_MAE_BOTH_INT,	  IRQ_TYPE_LEVEL_HIGH,	1, 0 },
+	{ -1, },
+};
+
+static struct alchemy_irqmap au1300_irqmap[] __initdata = {
+	/* multifunction: gpio pin or device */
+	{ AU1300_UART1_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_UART2_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_UART3_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_SD1_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_SD2_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_PSC0_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_PSC1_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_PSC2_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_PSC3_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	{ AU1300_NAND_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 0, },
+	/* au1300 internal */
+	{ AU1300_DDMA_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_MMU_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_MPU_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_GPU_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_UDMA_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_TOY_INT,	 IRQ_TYPE_EDGE_RISING,	1, 1, },
+	{ AU1300_TOY_MATCH0_INT, IRQ_TYPE_EDGE_RISING,	1, 1, },
+	{ AU1300_TOY_MATCH1_INT, IRQ_TYPE_EDGE_RISING,	1, 1, },
+	{ AU1300_TOY_MATCH2_INT, IRQ_TYPE_EDGE_RISING,	1, 1, },
+	{ AU1300_RTC_INT,	 IRQ_TYPE_EDGE_RISING,	1, 1, },
+	{ AU1300_RTC_MATCH0_INT, IRQ_TYPE_EDGE_RISING,	1, 1, },
+	{ AU1300_RTC_MATCH1_INT, IRQ_TYPE_EDGE_RISING,	1, 1, },
+	{ AU1300_RTC_MATCH2_INT, IRQ_TYPE_EDGE_RISING,	0, 1, },
+	{ AU1300_UART0_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_SD0_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_USB_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_LCD_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_BSA_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_MPE_INT,	 IRQ_TYPE_EDGE_RISING,	1, 1, },
+	{ AU1300_ITE_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_AES_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ AU1300_CIM_INT,	 IRQ_TYPE_LEVEL_HIGH,	1, 1, },
+	{ -1, },	/* terminator */
+};
+
+/******************************************************************************/
+
+static void au1x_ic0_unmask(struct irq_data *d)
+{
+	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR);
+
+	__raw_writel(1 << bit, base + IC_MASKSET);
+	__raw_writel(1 << bit, base + IC_WAKESET);
+	wmb();
+}
+
+static void au1x_ic1_unmask(struct irq_data *d)
+{
+	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR);
+
+	__raw_writel(1 << bit, base + IC_MASKSET);
+	__raw_writel(1 << bit, base + IC_WAKESET);
+	wmb();
+}
+
+static void au1x_ic0_mask(struct irq_data *d)
+{
+	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR);
+
+	__raw_writel(1 << bit, base + IC_MASKCLR);
+	__raw_writel(1 << bit, base + IC_WAKECLR);
+	wmb();
+}
+
+static void au1x_ic1_mask(struct irq_data *d)
+{
+	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR);
+
+	__raw_writel(1 << bit, base + IC_MASKCLR);
+	__raw_writel(1 << bit, base + IC_WAKECLR);
+	wmb();
+}
+
+static void au1x_ic0_ack(struct irq_data *d)
+{
+	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR);
+
+	/*
+	 * This may assume that we don't get interrupts from
+	 * both edges at once, or if we do, that we don't care.
+	 */
+	__raw_writel(1 << bit, base + IC_FALLINGCLR);
+	__raw_writel(1 << bit, base + IC_RISINGCLR);
+	wmb();
+}
+
+static void au1x_ic1_ack(struct irq_data *d)
+{
+	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR);
+
+	/*
+	 * This may assume that we don't get interrupts from
+	 * both edges at once, or if we do, that we don't care.
+	 */
+	__raw_writel(1 << bit, base + IC_FALLINGCLR);
+	__raw_writel(1 << bit, base + IC_RISINGCLR);
+	wmb();
+}
+
+static void au1x_ic0_maskack(struct irq_data *d)
+{
+	unsigned int bit = d->irq - AU1000_INTC0_INT_BASE;
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR);
+
+	__raw_writel(1 << bit, base + IC_WAKECLR);
+	__raw_writel(1 << bit, base + IC_MASKCLR);
+	__raw_writel(1 << bit, base + IC_RISINGCLR);
+	__raw_writel(1 << bit, base + IC_FALLINGCLR);
+	wmb();
+}
+
+static void au1x_ic1_maskack(struct irq_data *d)
+{
+	unsigned int bit = d->irq - AU1000_INTC1_INT_BASE;
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR);
+
+	__raw_writel(1 << bit, base + IC_WAKECLR);
+	__raw_writel(1 << bit, base + IC_MASKCLR);
+	__raw_writel(1 << bit, base + IC_RISINGCLR);
+	__raw_writel(1 << bit, base + IC_FALLINGCLR);
+	wmb();
+}
+
+static int au1x_ic1_setwake(struct irq_data *d, unsigned int on)
+{
+	int bit = d->irq - AU1000_INTC1_INT_BASE;
+	unsigned long wakemsk, flags;
+
+	/* only GPIO 0-7 can act as wakeup source.  Fortunately these
+	 * are wired up identically on all supported variants.
+	 */
+	if ((bit < 0) || (bit > 7))
+		return -EINVAL;
+
+	local_irq_save(flags);
+	wakemsk = alchemy_rdsys(AU1000_SYS_WAKEMSK);
+	if (on)
+		wakemsk |= 1 << bit;
+	else
+		wakemsk &= ~(1 << bit);
+	alchemy_wrsys(wakemsk, AU1000_SYS_WAKEMSK);
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+/*
+ * irq_chips for both ICs; this way the mask handlers can be
+ * as short as possible.
+ */
+static struct irq_chip au1x_ic0_chip = {
+	.name		= "Alchemy-IC0",
+	.irq_ack	= au1x_ic0_ack,
+	.irq_mask	= au1x_ic0_mask,
+	.irq_mask_ack	= au1x_ic0_maskack,
+	.irq_unmask	= au1x_ic0_unmask,
+	.irq_set_type	= au1x_ic_settype,
+};
+
+static struct irq_chip au1x_ic1_chip = {
+	.name		= "Alchemy-IC1",
+	.irq_ack	= au1x_ic1_ack,
+	.irq_mask	= au1x_ic1_mask,
+	.irq_mask_ack	= au1x_ic1_maskack,
+	.irq_unmask	= au1x_ic1_unmask,
+	.irq_set_type	= au1x_ic_settype,
+	.irq_set_wake	= au1x_ic1_setwake,
+};
+
+static int au1x_ic_settype(struct irq_data *d, unsigned int flow_type)
+{
+	struct irq_chip *chip;
+	unsigned int bit, irq = d->irq;
+	irq_flow_handler_t handler = NULL;
+	unsigned char *name = NULL;
+	void __iomem *base;
+	int ret;
+
+	if (irq >= AU1000_INTC1_INT_BASE) {
+		bit = irq - AU1000_INTC1_INT_BASE;
+		chip = &au1x_ic1_chip;
+		base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR);
+	} else {
+		bit = irq - AU1000_INTC0_INT_BASE;
+		chip = &au1x_ic0_chip;
+		base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR);
+	}
+
+	if (bit > 31)
+		return -EINVAL;
+
+	ret = 0;
+
+	switch (flow_type) {	/* cfgregs 2:1:0 */
+	case IRQ_TYPE_EDGE_RISING:	/* 0:0:1 */
+		__raw_writel(1 << bit, base + IC_CFG2CLR);
+		__raw_writel(1 << bit, base + IC_CFG1CLR);
+		__raw_writel(1 << bit, base + IC_CFG0SET);
+		handler = handle_edge_irq;
+		name = "riseedge";
+		break;
+	case IRQ_TYPE_EDGE_FALLING:	/* 0:1:0 */
+		__raw_writel(1 << bit, base + IC_CFG2CLR);
+		__raw_writel(1 << bit, base + IC_CFG1SET);
+		__raw_writel(1 << bit, base + IC_CFG0CLR);
+		handler = handle_edge_irq;
+		name = "falledge";
+		break;
+	case IRQ_TYPE_EDGE_BOTH:	/* 0:1:1 */
+		__raw_writel(1 << bit, base + IC_CFG2CLR);
+		__raw_writel(1 << bit, base + IC_CFG1SET);
+		__raw_writel(1 << bit, base + IC_CFG0SET);
+		handler = handle_edge_irq;
+		name = "bothedge";
+		break;
+	case IRQ_TYPE_LEVEL_HIGH:	/* 1:0:1 */
+		__raw_writel(1 << bit, base + IC_CFG2SET);
+		__raw_writel(1 << bit, base + IC_CFG1CLR);
+		__raw_writel(1 << bit, base + IC_CFG0SET);
+		handler = handle_level_irq;
+		name = "hilevel";
+		break;
+	case IRQ_TYPE_LEVEL_LOW:	/* 1:1:0 */
+		__raw_writel(1 << bit, base + IC_CFG2SET);
+		__raw_writel(1 << bit, base + IC_CFG1SET);
+		__raw_writel(1 << bit, base + IC_CFG0CLR);
+		handler = handle_level_irq;
+		name = "lowlevel";
+		break;
+	case IRQ_TYPE_NONE:		/* 0:0:0 */
+		__raw_writel(1 << bit, base + IC_CFG2CLR);
+		__raw_writel(1 << bit, base + IC_CFG1CLR);
+		__raw_writel(1 << bit, base + IC_CFG0CLR);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	__irq_set_chip_handler_name_locked(d->irq, chip, handler, name);
+
+	wmb();
+
+	return ret;
+}
+
+/******************************************************************************/
+
+/*
+ * au1300_gpic_chgcfg - change PIN configuration.
+ * @gpio:	pin to change (0-based GPIO number from datasheet).
+ * @clr:	clear all bits set in 'clr'.
+ * @set:	set these bits.
+ *
+ * modifies a pins' configuration register, bits set in @clr will
+ * be cleared in the register, bits in @set will be set.
+ */
+static inline void au1300_gpic_chgcfg(unsigned int gpio,
+				      unsigned long clr,
+				      unsigned long set)
+{
+	void __iomem *r = AU1300_GPIC_ADDR;
+	unsigned long l;
+
+	r += gpio * 4;	/* offset into pin config array */
+	l = __raw_readl(r + AU1300_GPIC_PINCFG);
+	l &= ~clr;
+	l |= set;
+	__raw_writel(l, r + AU1300_GPIC_PINCFG);
+	wmb();
+}
+
+/*
+ * au1300_pinfunc_to_gpio - assign a pin as GPIO input (GPIO ctrl).
+ * @pin:	pin (0-based GPIO number from datasheet).
+ *
+ * Assigns a GPIO pin to the GPIO controller, so its level can either
+ * be read or set through the generic GPIO functions.
+ * If you need a GPOUT, use au1300_gpio_set_value(pin, 0/1).
+ * REVISIT: is this function really necessary?
+ */
+void au1300_pinfunc_to_gpio(enum au1300_multifunc_pins gpio)
+{
+	au1300_gpio_direction_input(gpio + AU1300_GPIO_BASE);
+}
+EXPORT_SYMBOL_GPL(au1300_pinfunc_to_gpio);
+
+/*
+ * au1300_pinfunc_to_dev - assign a pin to the device function.
+ * @pin:	pin (0-based GPIO number from datasheet).
+ *
+ * Assigns a GPIO pin to its associated device function; the pin will be
+ * driven by the device and not through GPIO functions.
+ */
+void au1300_pinfunc_to_dev(enum au1300_multifunc_pins gpio)
+{
+	void __iomem *r = AU1300_GPIC_ADDR;
+	unsigned long bit;
+
+	r += GPIC_GPIO_BANKOFF(gpio);
+	bit = GPIC_GPIO_TO_BIT(gpio);
+	__raw_writel(bit, r + AU1300_GPIC_DEVSEL);
+	wmb();
+}
+EXPORT_SYMBOL_GPL(au1300_pinfunc_to_dev);
+
+/*
+ * au1300_set_irq_priority -  set internal priority of IRQ.
+ * @irq:	irq to set priority (linux irq number).
+ * @p:		priority (0 = highest, 3 = lowest).
+ */
+void au1300_set_irq_priority(unsigned int irq, int p)
+{
+	irq -= ALCHEMY_GPIC_INT_BASE;
+	au1300_gpic_chgcfg(irq, GPIC_CFG_IL_MASK, GPIC_CFG_IL_SET(p));
+}
+EXPORT_SYMBOL_GPL(au1300_set_irq_priority);
+
+/*
+ * au1300_set_dbdma_gpio - assign a gpio to one of the DBDMA triggers.
+ * @dchan:	dbdma trigger select (0, 1).
+ * @gpio:	pin to assign as trigger.
+ *
+ * DBDMA controller has 2 external trigger sources; this function
+ * assigns a GPIO to the selected trigger.
+ */
+void au1300_set_dbdma_gpio(int dchan, unsigned int gpio)
+{
+	unsigned long r;
+
+	if ((dchan >= 0) && (dchan <= 1)) {
+		r = __raw_readl(AU1300_GPIC_ADDR + AU1300_GPIC_DMASEL);
+		r &= ~(0xff << (8 * dchan));
+		r |= (gpio & 0x7f) << (8 * dchan);
+		__raw_writel(r, AU1300_GPIC_ADDR + AU1300_GPIC_DMASEL);
+		wmb();
+	}
+}
+
+static inline void gpic_pin_set_idlewake(unsigned int gpio, int allow)
+{
+	au1300_gpic_chgcfg(gpio, GPIC_CFG_IDLEWAKE,
+			   allow ? GPIC_CFG_IDLEWAKE : 0);
+}
+
+static void au1300_gpic_mask(struct irq_data *d)
+{
+	void __iomem *r = AU1300_GPIC_ADDR;
+	unsigned long bit, irq = d->irq;
+
+	irq -= ALCHEMY_GPIC_INT_BASE;
+	r += GPIC_GPIO_BANKOFF(irq);
+	bit = GPIC_GPIO_TO_BIT(irq);
+	__raw_writel(bit, r + AU1300_GPIC_IDIS);
+	wmb();
+
+	gpic_pin_set_idlewake(irq, 0);
+}
+
+static void au1300_gpic_unmask(struct irq_data *d)
+{
+	void __iomem *r = AU1300_GPIC_ADDR;
+	unsigned long bit, irq = d->irq;
+
+	irq -= ALCHEMY_GPIC_INT_BASE;
+
+	gpic_pin_set_idlewake(irq, 1);
+
+	r += GPIC_GPIO_BANKOFF(irq);
+	bit = GPIC_GPIO_TO_BIT(irq);
+	__raw_writel(bit, r + AU1300_GPIC_IEN);
+	wmb();
+}
+
+static void au1300_gpic_maskack(struct irq_data *d)
+{
+	void __iomem *r = AU1300_GPIC_ADDR;
+	unsigned long bit, irq = d->irq;
+
+	irq -= ALCHEMY_GPIC_INT_BASE;
+	r += GPIC_GPIO_BANKOFF(irq);
+	bit = GPIC_GPIO_TO_BIT(irq);
+	__raw_writel(bit, r + AU1300_GPIC_IPEND);	/* ack */
+	__raw_writel(bit, r + AU1300_GPIC_IDIS);	/* mask */
+	wmb();
+
+	gpic_pin_set_idlewake(irq, 0);
+}
+
+static void au1300_gpic_ack(struct irq_data *d)
+{
+	void __iomem *r = AU1300_GPIC_ADDR;
+	unsigned long bit, irq = d->irq;
+
+	irq -= ALCHEMY_GPIC_INT_BASE;
+	r += GPIC_GPIO_BANKOFF(irq);
+	bit = GPIC_GPIO_TO_BIT(irq);
+	__raw_writel(bit, r + AU1300_GPIC_IPEND);	/* ack */
+	wmb();
+}
+
+static struct irq_chip au1300_gpic = {
+	.name		= "GPIOINT",
+	.irq_ack	= au1300_gpic_ack,
+	.irq_mask	= au1300_gpic_mask,
+	.irq_mask_ack	= au1300_gpic_maskack,
+	.irq_unmask	= au1300_gpic_unmask,
+	.irq_set_type	= au1300_gpic_settype,
+};
+
+static int au1300_gpic_settype(struct irq_data *d, unsigned int type)
+{
+	unsigned long s;
+	unsigned char *name = NULL;
+	irq_flow_handler_t hdl = NULL;
+
+	switch (type) {
+	case IRQ_TYPE_LEVEL_HIGH:
+		s = GPIC_CFG_IC_LEVEL_HIGH;
+		name = "high";
+		hdl = handle_level_irq;
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		s = GPIC_CFG_IC_LEVEL_LOW;
+		name = "low";
+		hdl = handle_level_irq;
+		break;
+	case IRQ_TYPE_EDGE_RISING:
+		s = GPIC_CFG_IC_EDGE_RISE;
+		name = "posedge";
+		hdl = handle_edge_irq;
+		break;
+	case IRQ_TYPE_EDGE_FALLING:
+		s = GPIC_CFG_IC_EDGE_FALL;
+		name = "negedge";
+		hdl = handle_edge_irq;
+		break;
+	case IRQ_TYPE_EDGE_BOTH:
+		s = GPIC_CFG_IC_EDGE_BOTH;
+		name = "bothedge";
+		hdl = handle_edge_irq;
+		break;
+	case IRQ_TYPE_NONE:
+		s = GPIC_CFG_IC_OFF;
+		name = "disabled";
+		hdl = handle_level_irq;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	__irq_set_chip_handler_name_locked(d->irq, &au1300_gpic, hdl, name);
+
+	au1300_gpic_chgcfg(d->irq - ALCHEMY_GPIC_INT_BASE, GPIC_CFG_IC_MASK, s);
+
+	return 0;
+}
+
+/******************************************************************************/
+
+static inline void ic_init(void __iomem *base)
+{
+	/* initialize interrupt controller to a safe state */
+	__raw_writel(0xffffffff, base + IC_CFG0CLR);
+	__raw_writel(0xffffffff, base + IC_CFG1CLR);
+	__raw_writel(0xffffffff, base + IC_CFG2CLR);
+	__raw_writel(0xffffffff, base + IC_MASKCLR);
+	__raw_writel(0xffffffff, base + IC_ASSIGNCLR);
+	__raw_writel(0xffffffff, base + IC_WAKECLR);
+	__raw_writel(0xffffffff, base + IC_SRCSET);
+	__raw_writel(0xffffffff, base + IC_FALLINGCLR);
+	__raw_writel(0xffffffff, base + IC_RISINGCLR);
+	__raw_writel(0x00000000, base + IC_TESTBIT);
+	wmb();
+}
+
+static unsigned long alchemy_gpic_pmdata[ALCHEMY_GPIC_INT_NUM + 6];
+
+static inline void alchemy_ic_suspend_one(void __iomem *base, unsigned long *d)
+{
+	d[0] = __raw_readl(base + IC_CFG0RD);
+	d[1] = __raw_readl(base + IC_CFG1RD);
+	d[2] = __raw_readl(base + IC_CFG2RD);
+	d[3] = __raw_readl(base + IC_SRCRD);
+	d[4] = __raw_readl(base + IC_ASSIGNRD);
+	d[5] = __raw_readl(base + IC_WAKERD);
+	d[6] = __raw_readl(base + IC_MASKRD);
+	ic_init(base);		/* shut it up too while at it */
+}
+
+static inline void alchemy_ic_resume_one(void __iomem *base, unsigned long *d)
+{
+	ic_init(base);
+
+	__raw_writel(d[0], base + IC_CFG0SET);
+	__raw_writel(d[1], base + IC_CFG1SET);
+	__raw_writel(d[2], base + IC_CFG2SET);
+	__raw_writel(d[3], base + IC_SRCSET);
+	__raw_writel(d[4], base + IC_ASSIGNSET);
+	__raw_writel(d[5], base + IC_WAKESET);
+	wmb();
+
+	__raw_writel(d[6], base + IC_MASKSET);
+	wmb();
+}
+
+static int alchemy_ic_suspend(void)
+{
+	alchemy_ic_suspend_one((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR),
+			       alchemy_gpic_pmdata);
+	alchemy_ic_suspend_one((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR),
+			       &alchemy_gpic_pmdata[7]);
+	return 0;
+}
+
+static void alchemy_ic_resume(void)
+{
+	alchemy_ic_resume_one((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR),
+			      &alchemy_gpic_pmdata[7]);
+	alchemy_ic_resume_one((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR),
+			      alchemy_gpic_pmdata);
+}
+
+static int alchemy_gpic_suspend(void)
+{
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1300_GPIC_PHYS_ADDR);
+	int i;
+
+	/* save 4 interrupt mask status registers */
+	alchemy_gpic_pmdata[0] = __raw_readl(base + AU1300_GPIC_IEN + 0x0);
+	alchemy_gpic_pmdata[1] = __raw_readl(base + AU1300_GPIC_IEN + 0x4);
+	alchemy_gpic_pmdata[2] = __raw_readl(base + AU1300_GPIC_IEN + 0x8);
+	alchemy_gpic_pmdata[3] = __raw_readl(base + AU1300_GPIC_IEN + 0xc);
+
+	/* save misc register(s) */
+	alchemy_gpic_pmdata[4] = __raw_readl(base + AU1300_GPIC_DMASEL);
+
+	/* molto silenzioso */
+	__raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x0);
+	__raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x4);
+	__raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x8);
+	__raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0xc);
+	wmb();
+
+	/* save pin/int-type configuration */
+	base += AU1300_GPIC_PINCFG;
+	for (i = 0; i < ALCHEMY_GPIC_INT_NUM; i++)
+		alchemy_gpic_pmdata[i + 5] = __raw_readl(base + (i << 2));
+
+	wmb();
+
+	return 0;
+}
+
+static void alchemy_gpic_resume(void)
+{
+	void __iomem *base = (void __iomem *)KSEG1ADDR(AU1300_GPIC_PHYS_ADDR);
+	int i;
+
+	/* disable all first */
+	__raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x0);
+	__raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x4);
+	__raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0x8);
+	__raw_writel(~0UL, base + AU1300_GPIC_IDIS + 0xc);
+	wmb();
+
+	/* restore pin/int-type configurations */
+	base += AU1300_GPIC_PINCFG;
+	for (i = 0; i < ALCHEMY_GPIC_INT_NUM; i++)
+		__raw_writel(alchemy_gpic_pmdata[i + 5], base + (i << 2));
+	wmb();
+
+	/* restore misc register(s) */
+	base = (void __iomem *)KSEG1ADDR(AU1300_GPIC_PHYS_ADDR);
+	__raw_writel(alchemy_gpic_pmdata[4], base + AU1300_GPIC_DMASEL);
+	wmb();
+
+	/* finally restore masks */
+	__raw_writel(alchemy_gpic_pmdata[0], base + AU1300_GPIC_IEN + 0x0);
+	__raw_writel(alchemy_gpic_pmdata[1], base + AU1300_GPIC_IEN + 0x4);
+	__raw_writel(alchemy_gpic_pmdata[2], base + AU1300_GPIC_IEN + 0x8);
+	__raw_writel(alchemy_gpic_pmdata[3], base + AU1300_GPIC_IEN + 0xc);
+	wmb();
+}
+
+static struct syscore_ops alchemy_ic_pmops = {
+	.suspend	= alchemy_ic_suspend,
+	.resume		= alchemy_ic_resume,
+};
+
+static struct syscore_ops alchemy_gpic_pmops = {
+	.suspend	= alchemy_gpic_suspend,
+	.resume		= alchemy_gpic_resume,
+};
+
+/******************************************************************************/
+
+/* create chained handlers for the 4 IC requests to the MIPS IRQ ctrl */
+#define DISP(name, base, addr)						      \
+static void au1000_##name##_dispatch(unsigned int irq, struct irq_desc *d)    \
+{									      \
+	unsigned long r = __raw_readl((void __iomem *)KSEG1ADDR(addr));	      \
+	if (likely(r))							      \
+		generic_handle_irq(base + __ffs(r));			      \
+	else								      \
+		spurious_interrupt();					      \
+}
+
+DISP(ic0r0, AU1000_INTC0_INT_BASE, AU1000_IC0_PHYS_ADDR + IC_REQ0INT)
+DISP(ic0r1, AU1000_INTC0_INT_BASE, AU1000_IC0_PHYS_ADDR + IC_REQ1INT)
+DISP(ic1r0, AU1000_INTC1_INT_BASE, AU1000_IC1_PHYS_ADDR + IC_REQ0INT)
+DISP(ic1r1, AU1000_INTC1_INT_BASE, AU1000_IC1_PHYS_ADDR + IC_REQ1INT)
+
+static void alchemy_gpic_dispatch(unsigned int irq, struct irq_desc *d)
+{
+	int i = __raw_readl(AU1300_GPIC_ADDR + AU1300_GPIC_PRIENC);
+	generic_handle_irq(ALCHEMY_GPIC_INT_BASE + i);
+}
+
+/******************************************************************************/
+
+static void __init au1000_init_irq(struct alchemy_irqmap *map)
+{
+	unsigned int bit, irq_nr;
+	void __iomem *base;
+
+	ic_init((void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR));
+	ic_init((void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR));
+	register_syscore_ops(&alchemy_ic_pmops);
+	mips_cpu_irq_init();
+
+	/* register all 64 possible IC0+IC1 irq sources as type "none".
+	 * Use set_irq_type() to set edge/level behaviour at runtime.
+	 */
+	for (irq_nr = AU1000_INTC0_INT_BASE;
+	     (irq_nr < AU1000_INTC0_INT_BASE + 32); irq_nr++)
+		au1x_ic_settype(irq_get_irq_data(irq_nr), IRQ_TYPE_NONE);
+
+	for (irq_nr = AU1000_INTC1_INT_BASE;
+	     (irq_nr < AU1000_INTC1_INT_BASE + 32); irq_nr++)
+		au1x_ic_settype(irq_get_irq_data(irq_nr), IRQ_TYPE_NONE);
+
+	/*
+	 * Initialize IC0, which is fixed per processor.
+	 */
+	while (map->irq != -1) {
+		irq_nr = map->irq;
+
+		if (irq_nr >= AU1000_INTC1_INT_BASE) {
+			bit = irq_nr - AU1000_INTC1_INT_BASE;
+			base = (void __iomem *)KSEG1ADDR(AU1000_IC1_PHYS_ADDR);
+		} else {
+			bit = irq_nr - AU1000_INTC0_INT_BASE;
+			base = (void __iomem *)KSEG1ADDR(AU1000_IC0_PHYS_ADDR);
+		}
+		if (map->prio == 0)
+			__raw_writel(1 << bit, base + IC_ASSIGNSET);
+
+		au1x_ic_settype(irq_get_irq_data(irq_nr), map->type);
+		++map;
+	}
+
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 2, au1000_ic0r0_dispatch);
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 3, au1000_ic0r1_dispatch);
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 4, au1000_ic1r0_dispatch);
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 5, au1000_ic1r1_dispatch);
+}
+
+static void __init alchemy_gpic_init_irq(const struct alchemy_irqmap *dints)
+{
+	int i;
+	void __iomem *bank_base;
+
+	register_syscore_ops(&alchemy_gpic_pmops);
+	mips_cpu_irq_init();
+
+	/* disable & ack all possible interrupt sources */
+	for (i = 0; i < 4; i++) {
+		bank_base = AU1300_GPIC_ADDR + (i * 4);
+		__raw_writel(~0UL, bank_base + AU1300_GPIC_IDIS);
+		wmb();
+		__raw_writel(~0UL, bank_base + AU1300_GPIC_IPEND);
+		wmb();
+	}
+
+	/* register an irq_chip for them, with 2nd highest priority */
+	for (i = ALCHEMY_GPIC_INT_BASE; i <= ALCHEMY_GPIC_INT_LAST; i++) {
+		au1300_set_irq_priority(i, 1);
+		au1300_gpic_settype(irq_get_irq_data(i), IRQ_TYPE_NONE);
+	}
+
+	/* setup known on-chip sources */
+	while ((i = dints->irq) != -1) {
+		au1300_gpic_settype(irq_get_irq_data(i), dints->type);
+		au1300_set_irq_priority(i, dints->prio);
+
+		if (dints->internal)
+			au1300_pinfunc_to_dev(i - ALCHEMY_GPIC_INT_BASE);
+
+		dints++;
+	}
+
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 2, alchemy_gpic_dispatch);
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 3, alchemy_gpic_dispatch);
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 4, alchemy_gpic_dispatch);
+	irq_set_chained_handler(MIPS_CPU_IRQ_BASE + 5, alchemy_gpic_dispatch);
+}
+
+/******************************************************************************/
+
+void __init arch_init_irq(void)
+{
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+		au1000_init_irq(au1000_irqmap);
+		break;
+	case ALCHEMY_CPU_AU1500:
+		au1000_init_irq(au1500_irqmap);
+		break;
+	case ALCHEMY_CPU_AU1100:
+		au1000_init_irq(au1100_irqmap);
+		break;
+	case ALCHEMY_CPU_AU1550:
+		au1000_init_irq(au1550_irqmap);
+		break;
+	case ALCHEMY_CPU_AU1200:
+		au1000_init_irq(au1200_irqmap);
+		break;
+	case ALCHEMY_CPU_AU1300:
+		alchemy_gpic_init_irq(au1300_irqmap);
+		break;
+	default:
+		pr_err("unknown Alchemy IRQ core\n");
+		break;
+	}
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+	unsigned long r = (read_c0_status() & read_c0_cause()) >> 8;
+	do_IRQ(MIPS_CPU_IRQ_BASE + __ffs(r & 0xff));
+}
diff --git a/kernel/arch/mips/alchemy/common/platform.c b/kernel/arch/mips/alchemy/common/platform.c
new file mode 100644
index 000000000..d77a64f4c
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/platform.c
@@ -0,0 +1,452 @@
+/*
+ * Platform device support for Au1x00 SoCs.
+ *
+ * Copyright 2004, Matt Porter <mporter@kernel.crashing.org>
+ *
+ * (C) Copyright Embedded Alley Solutions, Inc 2005
+ * Author: Pantelis Antoniou <pantelis@embeddedalley.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/slab.h>
+#include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+#include <asm/mach-au1x00/au1100_mmc.h>
+#include <asm/mach-au1x00/au1xxx_eth.h>
+
+#include <prom.h>
+
+static void alchemy_8250_pm(struct uart_port *port, unsigned int state,
+			    unsigned int old_state)
+{
+#ifdef CONFIG_SERIAL_8250
+	switch (state) {
+	case 0:
+		alchemy_uart_enable(CPHYSADDR(port->membase));
+		serial8250_do_pm(port, state, old_state);
+		break;
+	case 3:		/* power off */
+		serial8250_do_pm(port, state, old_state);
+		alchemy_uart_disable(CPHYSADDR(port->membase));
+		break;
+	default:
+		serial8250_do_pm(port, state, old_state);
+		break;
+	}
+#endif
+}
+
+#define PORT(_base, _irq)					\
+	{							\
+		.mapbase	= _base,			\
+		.irq		= _irq,				\
+		.regshift	= 2,				\
+		.iotype		= UPIO_AU,			\
+		.flags		= UPF_SKIP_TEST | UPF_IOREMAP | \
+				  UPF_FIXED_TYPE,		\
+		.type		= PORT_16550A,			\
+		.pm		= alchemy_8250_pm,		\
+	}
+
+static struct plat_serial8250_port au1x00_uart_data[][4] __initdata = {
+	[ALCHEMY_CPU_AU1000] = {
+		PORT(AU1000_UART0_PHYS_ADDR, AU1000_UART0_INT),
+		PORT(AU1000_UART1_PHYS_ADDR, AU1000_UART1_INT),
+		PORT(AU1000_UART2_PHYS_ADDR, AU1000_UART2_INT),
+		PORT(AU1000_UART3_PHYS_ADDR, AU1000_UART3_INT),
+	},
+	[ALCHEMY_CPU_AU1500] = {
+		PORT(AU1000_UART0_PHYS_ADDR, AU1500_UART0_INT),
+		PORT(AU1000_UART3_PHYS_ADDR, AU1500_UART3_INT),
+	},
+	[ALCHEMY_CPU_AU1100] = {
+		PORT(AU1000_UART0_PHYS_ADDR, AU1100_UART0_INT),
+		PORT(AU1000_UART1_PHYS_ADDR, AU1100_UART1_INT),
+		PORT(AU1000_UART3_PHYS_ADDR, AU1100_UART3_INT),
+	},
+	[ALCHEMY_CPU_AU1550] = {
+		PORT(AU1000_UART0_PHYS_ADDR, AU1550_UART0_INT),
+		PORT(AU1000_UART1_PHYS_ADDR, AU1550_UART1_INT),
+		PORT(AU1000_UART3_PHYS_ADDR, AU1550_UART3_INT),
+	},
+	[ALCHEMY_CPU_AU1200] = {
+		PORT(AU1000_UART0_PHYS_ADDR, AU1200_UART0_INT),
+		PORT(AU1000_UART1_PHYS_ADDR, AU1200_UART1_INT),
+	},
+	[ALCHEMY_CPU_AU1300] = {
+		PORT(AU1300_UART0_PHYS_ADDR, AU1300_UART0_INT),
+		PORT(AU1300_UART1_PHYS_ADDR, AU1300_UART1_INT),
+		PORT(AU1300_UART2_PHYS_ADDR, AU1300_UART2_INT),
+		PORT(AU1300_UART3_PHYS_ADDR, AU1300_UART3_INT),
+	},
+};
+
+static struct platform_device au1xx0_uart_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_AU1X00,
+};
+
+static void __init alchemy_setup_uarts(int ctype)
+{
+	long uartclk;
+	int s = sizeof(struct plat_serial8250_port);
+	int c = alchemy_get_uarts(ctype);
+	struct plat_serial8250_port *ports;
+	struct clk *clk = clk_get(NULL, ALCHEMY_PERIPH_CLK);
+
+	if (IS_ERR(clk))
+		return;
+	if (clk_prepare_enable(clk)) {
+		clk_put(clk);
+		return;
+	}
+	uartclk = clk_get_rate(clk);
+	clk_put(clk);
+
+	ports = kzalloc(s * (c + 1), GFP_KERNEL);
+	if (!ports) {
+		printk(KERN_INFO "Alchemy: no memory for UART data\n");
+		return;
+	}
+	memcpy(ports, au1x00_uart_data[ctype], s * c);
+	au1xx0_uart_device.dev.platform_data = ports;
+
+	/* Fill up uartclk. */
+	for (s = 0; s < c; s++)
+		ports[s].uartclk = uartclk;
+	if (platform_device_register(&au1xx0_uart_device))
+		printk(KERN_INFO "Alchemy: failed to register UARTs\n");
+}
+
+
+/* The dmamask must be set for OHCI/EHCI to work */
+static u64 alchemy_ohci_dmamask = DMA_BIT_MASK(32);
+static u64 __maybe_unused alchemy_ehci_dmamask = DMA_BIT_MASK(32);
+
+/* Power on callback for the ehci platform driver */
+static int alchemy_ehci_power_on(struct platform_device *pdev)
+{
+	return alchemy_usb_control(ALCHEMY_USB_EHCI0, 1);
+}
+
+/* Power off/suspend callback for the ehci platform driver */
+static void alchemy_ehci_power_off(struct platform_device *pdev)
+{
+	alchemy_usb_control(ALCHEMY_USB_EHCI0, 0);
+}
+
+static struct usb_ehci_pdata alchemy_ehci_pdata = {
+	.no_io_watchdog = 1,
+	.power_on	= alchemy_ehci_power_on,
+	.power_off	= alchemy_ehci_power_off,
+	.power_suspend	= alchemy_ehci_power_off,
+};
+
+/* Power on callback for the ohci platform driver */
+static int alchemy_ohci_power_on(struct platform_device *pdev)
+{
+	int unit;
+
+	unit = (pdev->id == 1) ?
+		ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
+
+	return alchemy_usb_control(unit, 1);
+}
+
+/* Power off/suspend callback for the ohci platform driver */
+static void alchemy_ohci_power_off(struct platform_device *pdev)
+{
+	int unit;
+
+	unit = (pdev->id == 1) ?
+		ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
+
+	alchemy_usb_control(unit, 0);
+}
+
+static struct usb_ohci_pdata alchemy_ohci_pdata = {
+	.power_on		= alchemy_ohci_power_on,
+	.power_off		= alchemy_ohci_power_off,
+	.power_suspend		= alchemy_ohci_power_off,
+};
+
+static unsigned long alchemy_ohci_data[][2] __initdata = {
+	[ALCHEMY_CPU_AU1000] = { AU1000_USB_OHCI_PHYS_ADDR, AU1000_USB_HOST_INT },
+	[ALCHEMY_CPU_AU1500] = { AU1000_USB_OHCI_PHYS_ADDR, AU1500_USB_HOST_INT },
+	[ALCHEMY_CPU_AU1100] = { AU1000_USB_OHCI_PHYS_ADDR, AU1100_USB_HOST_INT },
+	[ALCHEMY_CPU_AU1550] = { AU1550_USB_OHCI_PHYS_ADDR, AU1550_USB_HOST_INT },
+	[ALCHEMY_CPU_AU1200] = { AU1200_USB_OHCI_PHYS_ADDR, AU1200_USB_INT },
+	[ALCHEMY_CPU_AU1300] = { AU1300_USB_OHCI0_PHYS_ADDR, AU1300_USB_INT },
+};
+
+static unsigned long alchemy_ehci_data[][2] __initdata = {
+	[ALCHEMY_CPU_AU1200] = { AU1200_USB_EHCI_PHYS_ADDR, AU1200_USB_INT },
+	[ALCHEMY_CPU_AU1300] = { AU1300_USB_EHCI_PHYS_ADDR, AU1300_USB_INT },
+};
+
+static int __init _new_usbres(struct resource **r, struct platform_device **d)
+{
+	*r = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	if (!*r)
+		return -ENOMEM;
+	*d = kzalloc(sizeof(struct platform_device), GFP_KERNEL);
+	if (!*d) {
+		kfree(*r);
+		return -ENOMEM;
+	}
+
+	(*d)->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	(*d)->num_resources = 2;
+	(*d)->resource = *r;
+
+	return 0;
+}
+
+static void __init alchemy_setup_usb(int ctype)
+{
+	struct resource *res;
+	struct platform_device *pdev;
+
+	/* setup OHCI0.  Every variant has one */
+	if (_new_usbres(&res, &pdev))
+		return;
+
+	res[0].start = alchemy_ohci_data[ctype][0];
+	res[0].end = res[0].start + 0x100 - 1;
+	res[0].flags = IORESOURCE_MEM;
+	res[1].start = alchemy_ohci_data[ctype][1];
+	res[1].end = res[1].start;
+	res[1].flags = IORESOURCE_IRQ;
+	pdev->name = "ohci-platform";
+	pdev->id = 0;
+	pdev->dev.dma_mask = &alchemy_ohci_dmamask;
+	pdev->dev.platform_data = &alchemy_ohci_pdata;
+
+	if (platform_device_register(pdev))
+		printk(KERN_INFO "Alchemy USB: cannot add OHCI0\n");
+
+
+	/* setup EHCI0: Au1200/Au1300 */
+	if ((ctype == ALCHEMY_CPU_AU1200) || (ctype == ALCHEMY_CPU_AU1300)) {
+		if (_new_usbres(&res, &pdev))
+			return;
+
+		res[0].start = alchemy_ehci_data[ctype][0];
+		res[0].end = res[0].start + 0x100 - 1;
+		res[0].flags = IORESOURCE_MEM;
+		res[1].start = alchemy_ehci_data[ctype][1];
+		res[1].end = res[1].start;
+		res[1].flags = IORESOURCE_IRQ;
+		pdev->name = "ehci-platform";
+		pdev->id = 0;
+		pdev->dev.dma_mask = &alchemy_ehci_dmamask;
+		pdev->dev.platform_data = &alchemy_ehci_pdata;
+
+		if (platform_device_register(pdev))
+			printk(KERN_INFO "Alchemy USB: cannot add EHCI0\n");
+	}
+
+	/* Au1300: OHCI1 */
+	if (ctype == ALCHEMY_CPU_AU1300) {
+		if (_new_usbres(&res, &pdev))
+			return;
+
+		res[0].start = AU1300_USB_OHCI1_PHYS_ADDR;
+		res[0].end = res[0].start + 0x100 - 1;
+		res[0].flags = IORESOURCE_MEM;
+		res[1].start = AU1300_USB_INT;
+		res[1].end = res[1].start;
+		res[1].flags = IORESOURCE_IRQ;
+		pdev->name = "ohci-platform";
+		pdev->id = 1;
+		pdev->dev.dma_mask = &alchemy_ohci_dmamask;
+		pdev->dev.platform_data = &alchemy_ohci_pdata;
+
+		if (platform_device_register(pdev))
+			printk(KERN_INFO "Alchemy USB: cannot add OHCI1\n");
+	}
+}
+
+/* Macro to help defining the Ethernet MAC resources */
+#define MAC_RES_COUNT	4	/* MAC regs, MAC en, MAC INT, MACDMA regs */
+#define MAC_RES(_base, _enable, _irq, _macdma)		\
+	{						\
+		.start	= _base,			\
+		.end	= _base + 0xffff,		\
+		.flags	= IORESOURCE_MEM,		\
+	},						\
+	{						\
+		.start	= _enable,			\
+		.end	= _enable + 0x3,		\
+		.flags	= IORESOURCE_MEM,		\
+	},						\
+	{						\
+		.start	= _irq,				\
+		.end	= _irq,				\
+		.flags	= IORESOURCE_IRQ		\
+	},						\
+	{						\
+		.start	= _macdma,			\
+		.end	= _macdma + 0x1ff,		\
+		.flags	= IORESOURCE_MEM,		\
+	}
+
+static struct resource au1xxx_eth0_resources[][MAC_RES_COUNT] __initdata = {
+	[ALCHEMY_CPU_AU1000] = {
+		MAC_RES(AU1000_MAC0_PHYS_ADDR,
+			AU1000_MACEN_PHYS_ADDR,
+			AU1000_MAC0_DMA_INT,
+			AU1000_MACDMA0_PHYS_ADDR)
+	},
+	[ALCHEMY_CPU_AU1500] = {
+		MAC_RES(AU1500_MAC0_PHYS_ADDR,
+			AU1500_MACEN_PHYS_ADDR,
+			AU1500_MAC0_DMA_INT,
+			AU1000_MACDMA0_PHYS_ADDR)
+	},
+	[ALCHEMY_CPU_AU1100] = {
+		MAC_RES(AU1000_MAC0_PHYS_ADDR,
+			AU1000_MACEN_PHYS_ADDR,
+			AU1100_MAC0_DMA_INT,
+			AU1000_MACDMA0_PHYS_ADDR)
+	},
+	[ALCHEMY_CPU_AU1550] = {
+		MAC_RES(AU1000_MAC0_PHYS_ADDR,
+			AU1000_MACEN_PHYS_ADDR,
+			AU1550_MAC0_DMA_INT,
+			AU1000_MACDMA0_PHYS_ADDR)
+	},
+};
+
+static struct au1000_eth_platform_data au1xxx_eth0_platform_data = {
+	.phy1_search_mac0 = 1,
+};
+
+static struct platform_device au1xxx_eth0_device = {
+	.name		= "au1000-eth",
+	.id		= 0,
+	.num_resources	= MAC_RES_COUNT,
+	.dev.platform_data = &au1xxx_eth0_platform_data,
+};
+
+static struct resource au1xxx_eth1_resources[][MAC_RES_COUNT] __initdata = {
+	[ALCHEMY_CPU_AU1000] = {
+		MAC_RES(AU1000_MAC1_PHYS_ADDR,
+			AU1000_MACEN_PHYS_ADDR + 4,
+			AU1000_MAC1_DMA_INT,
+			AU1000_MACDMA1_PHYS_ADDR)
+	},
+	[ALCHEMY_CPU_AU1500] = {
+		MAC_RES(AU1500_MAC1_PHYS_ADDR,
+			AU1500_MACEN_PHYS_ADDR + 4,
+			AU1500_MAC1_DMA_INT,
+			AU1000_MACDMA1_PHYS_ADDR)
+	},
+	[ALCHEMY_CPU_AU1550] = {
+		MAC_RES(AU1000_MAC1_PHYS_ADDR,
+			AU1000_MACEN_PHYS_ADDR + 4,
+			AU1550_MAC1_DMA_INT,
+			AU1000_MACDMA1_PHYS_ADDR)
+	},
+};
+
+static struct au1000_eth_platform_data au1xxx_eth1_platform_data = {
+	.phy1_search_mac0 = 1,
+};
+
+static struct platform_device au1xxx_eth1_device = {
+	.name		= "au1000-eth",
+	.id		= 1,
+	.num_resources	= MAC_RES_COUNT,
+	.dev.platform_data = &au1xxx_eth1_platform_data,
+};
+
+void __init au1xxx_override_eth_cfg(unsigned int port,
+			struct au1000_eth_platform_data *eth_data)
+{
+	if (!eth_data || port > 1)
+		return;
+
+	if (port == 0)
+		memcpy(&au1xxx_eth0_platform_data, eth_data,
+			sizeof(struct au1000_eth_platform_data));
+	else
+		memcpy(&au1xxx_eth1_platform_data, eth_data,
+			sizeof(struct au1000_eth_platform_data));
+}
+
+static void __init alchemy_setup_macs(int ctype)
+{
+	int ret, i;
+	unsigned char ethaddr[6];
+	struct resource *macres;
+
+	/* Handle 1st MAC */
+	if (alchemy_get_macs(ctype) < 1)
+		return;
+
+	macres = kmemdup(au1xxx_eth0_resources[ctype],
+			 sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
+	if (!macres) {
+		printk(KERN_INFO "Alchemy: no memory for MAC0 resources\n");
+		return;
+	}
+	au1xxx_eth0_device.resource = macres;
+
+	i = prom_get_ethernet_addr(ethaddr);
+	if (!i && !is_valid_ether_addr(au1xxx_eth0_platform_data.mac))
+		memcpy(au1xxx_eth0_platform_data.mac, ethaddr, 6);
+
+	ret = platform_device_register(&au1xxx_eth0_device);
+	if (ret)
+		printk(KERN_INFO "Alchemy: failed to register MAC0\n");
+
+
+	/* Handle 2nd MAC */
+	if (alchemy_get_macs(ctype) < 2)
+		return;
+
+	macres = kmemdup(au1xxx_eth1_resources[ctype],
+			 sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
+	if (!macres) {
+		printk(KERN_INFO "Alchemy: no memory for MAC1 resources\n");
+		return;
+	}
+	au1xxx_eth1_device.resource = macres;
+
+	ethaddr[5] += 1;	/* next addr for 2nd MAC */
+	if (!i && !is_valid_ether_addr(au1xxx_eth1_platform_data.mac))
+		memcpy(au1xxx_eth1_platform_data.mac, ethaddr, 6);
+
+	/* Register second MAC if enabled in pinfunc */
+	if (!(alchemy_rdsys(AU1000_SYS_PINFUNC) & SYS_PF_NI2)) {
+		ret = platform_device_register(&au1xxx_eth1_device);
+		if (ret)
+			printk(KERN_INFO "Alchemy: failed to register MAC1\n");
+	}
+}
+
+static int __init au1xxx_platform_init(void)
+{
+	int ctype = alchemy_get_cputype();
+
+	alchemy_setup_uarts(ctype);
+	alchemy_setup_macs(ctype);
+	alchemy_setup_usb(ctype);
+
+	return 0;
+}
+
+arch_initcall(au1xxx_platform_init);
diff --git a/kernel/arch/mips/alchemy/common/power.c b/kernel/arch/mips/alchemy/common/power.c
new file mode 100644
index 000000000..921ed30b4
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/power.c
@@ -0,0 +1,132 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ *	Au1xx0 Power Management routines.
+ *
+ * Copyright 2001, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
+ *
+ *  Some of the routines are right out of init/main.c, whose
+ *  copyrights apply here.
+ *
+ *  This program is free software; you can redistribute	 it and/or modify it
+ *  under  the terms of	 the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the	License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED	  ``AS	IS'' AND   ANY	EXPRESS OR IMPLIED
+ *  WARRANTIES,	  INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO	EVENT  SHALL   THE AUTHOR  BE	 LIABLE FOR ANY	  DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED	  TO, PROCUREMENT OF  SUBSTITUTE GOODS	OR SERVICES; LOSS OF
+ *  USE, DATA,	OR PROFITS; OR	BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN	 CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/pm.h>
+#include <linux/sysctl.h>
+#include <linux/jiffies.h>
+
+#include <asm/uaccess.h>
+#include <asm/mach-au1x00/au1000.h>
+
+/*
+ * We need to save/restore a bunch of core registers that are
+ * either volatile or reset to some state across a processor sleep.
+ * If reading a register doesn't provide a proper result for a
+ * later restore, we have to provide a function for loading that
+ * register and save a copy.
+ *
+ * We only have to save/restore registers that aren't otherwise
+ * done as part of a driver pm_* function.
+ */
+static unsigned int sleep_sys_clocks[5];
+static unsigned int sleep_sys_pinfunc;
+static unsigned int sleep_static_memctlr[4][3];
+
+
+static void save_core_regs(void)
+{
+	/* Clocks and PLLs. */
+	sleep_sys_clocks[0] = alchemy_rdsys(AU1000_SYS_FREQCTRL0);
+	sleep_sys_clocks[1] = alchemy_rdsys(AU1000_SYS_FREQCTRL1);
+	sleep_sys_clocks[2] = alchemy_rdsys(AU1000_SYS_CLKSRC);
+	sleep_sys_clocks[3] = alchemy_rdsys(AU1000_SYS_CPUPLL);
+	sleep_sys_clocks[4] = alchemy_rdsys(AU1000_SYS_AUXPLL);
+
+	/* pin mux config */
+	sleep_sys_pinfunc = alchemy_rdsys(AU1000_SYS_PINFUNC);
+
+	/* Save the static memory controller configuration. */
+	sleep_static_memctlr[0][0] = alchemy_rdsmem(AU1000_MEM_STCFG0);
+	sleep_static_memctlr[0][1] = alchemy_rdsmem(AU1000_MEM_STTIME0);
+	sleep_static_memctlr[0][2] = alchemy_rdsmem(AU1000_MEM_STADDR0);
+	sleep_static_memctlr[1][0] = alchemy_rdsmem(AU1000_MEM_STCFG1);
+	sleep_static_memctlr[1][1] = alchemy_rdsmem(AU1000_MEM_STTIME1);
+	sleep_static_memctlr[1][2] = alchemy_rdsmem(AU1000_MEM_STADDR1);
+	sleep_static_memctlr[2][0] = alchemy_rdsmem(AU1000_MEM_STCFG2);
+	sleep_static_memctlr[2][1] = alchemy_rdsmem(AU1000_MEM_STTIME2);
+	sleep_static_memctlr[2][2] = alchemy_rdsmem(AU1000_MEM_STADDR2);
+	sleep_static_memctlr[3][0] = alchemy_rdsmem(AU1000_MEM_STCFG3);
+	sleep_static_memctlr[3][1] = alchemy_rdsmem(AU1000_MEM_STTIME3);
+	sleep_static_memctlr[3][2] = alchemy_rdsmem(AU1000_MEM_STADDR3);
+}
+
+static void restore_core_regs(void)
+{
+	/* restore clock configuration.  Writing CPUPLL last will
+	 * stall a bit and stabilize other clocks (unless this is
+	 * one of those Au1000 with a write-only PLL, where we dont
+	 * have a valid value)
+	 */
+	alchemy_wrsys(sleep_sys_clocks[0], AU1000_SYS_FREQCTRL0);
+	alchemy_wrsys(sleep_sys_clocks[1], AU1000_SYS_FREQCTRL1);
+	alchemy_wrsys(sleep_sys_clocks[2], AU1000_SYS_CLKSRC);
+	alchemy_wrsys(sleep_sys_clocks[4], AU1000_SYS_AUXPLL);
+	if (!au1xxx_cpu_has_pll_wo())
+		alchemy_wrsys(sleep_sys_clocks[3], AU1000_SYS_CPUPLL);
+
+	alchemy_wrsys(sleep_sys_pinfunc, AU1000_SYS_PINFUNC);
+
+	/* Restore the static memory controller configuration. */
+	alchemy_wrsmem(sleep_static_memctlr[0][0], AU1000_MEM_STCFG0);
+	alchemy_wrsmem(sleep_static_memctlr[0][1], AU1000_MEM_STTIME0);
+	alchemy_wrsmem(sleep_static_memctlr[0][2], AU1000_MEM_STADDR0);
+	alchemy_wrsmem(sleep_static_memctlr[1][0], AU1000_MEM_STCFG1);
+	alchemy_wrsmem(sleep_static_memctlr[1][1], AU1000_MEM_STTIME1);
+	alchemy_wrsmem(sleep_static_memctlr[1][2], AU1000_MEM_STADDR1);
+	alchemy_wrsmem(sleep_static_memctlr[2][0], AU1000_MEM_STCFG2);
+	alchemy_wrsmem(sleep_static_memctlr[2][1], AU1000_MEM_STTIME2);
+	alchemy_wrsmem(sleep_static_memctlr[2][2], AU1000_MEM_STADDR2);
+	alchemy_wrsmem(sleep_static_memctlr[3][0], AU1000_MEM_STCFG3);
+	alchemy_wrsmem(sleep_static_memctlr[3][1], AU1000_MEM_STTIME3);
+	alchemy_wrsmem(sleep_static_memctlr[3][2], AU1000_MEM_STADDR3);
+}
+
+void au_sleep(void)
+{
+	save_core_regs();
+
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+	case ALCHEMY_CPU_AU1100:
+		alchemy_sleep_au1000();
+		break;
+	case ALCHEMY_CPU_AU1550:
+	case ALCHEMY_CPU_AU1200:
+		alchemy_sleep_au1550();
+		break;
+	case ALCHEMY_CPU_AU1300:
+		alchemy_sleep_au1300();
+		break;
+	}
+
+	restore_core_regs();
+}
diff --git a/kernel/arch/mips/alchemy/common/prom.c b/kernel/arch/mips/alchemy/common/prom.c
new file mode 100644
index 000000000..534021059
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/prom.c
@@ -0,0 +1,129 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *    PROM library initialisation code, supports YAMON and U-Boot.
+ *
+ * Copyright 2000-2001, 2006, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
+ *
+ * This file was derived from Carsten Langgaard's
+ * arch/mips/mips-boards/xx files.
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+
+int prom_argc;
+char **prom_argv;
+char **prom_envp;
+
+void __init prom_init_cmdline(void)
+{
+	int i;
+
+	for (i = 1; i < prom_argc; i++) {
+		strlcat(arcs_cmdline, prom_argv[i], COMMAND_LINE_SIZE);
+		if (i < (prom_argc - 1))
+			strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
+	}
+}
+
+char *prom_getenv(char *envname)
+{
+	/*
+	 * Return a pointer to the given environment variable.
+	 * YAMON uses "name", "value" pairs, while U-Boot uses "name=value".
+	 */
+
+	char **env = prom_envp;
+	int i = strlen(envname);
+	int yamon = (*env && strchr(*env, '=') == NULL);
+
+	while (*env) {
+		if (yamon) {
+			if (strcmp(envname, *env++) == 0)
+				return *env;
+		} else if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=')
+			return *env + i + 1;
+		env++;
+	}
+
+	return NULL;
+}
+
+static inline unsigned char str2hexnum(unsigned char c)
+{
+	if (c >= '0' && c <= '9')
+		return c - '0';
+	if (c >= 'a' && c <= 'f')
+		return c - 'a' + 10;
+	if (c >= 'A' && c <= 'F')
+		return c - 'A' + 10;
+
+	return 0; /* foo */
+}
+
+static inline void str2eaddr(unsigned char *ea, unsigned char *str)
+{
+	int i;
+
+	for (i = 0; i < 6; i++) {
+		unsigned char num;
+
+		if ((*str == '.') || (*str == ':'))
+			str++;
+		num  = str2hexnum(*str++) << 4;
+		num |= str2hexnum(*str++);
+		ea[i] = num;
+	}
+}
+
+int __init prom_get_ethernet_addr(char *ethernet_addr)
+{
+	char *ethaddr_str;
+
+	/* Check the environment variables first */
+	ethaddr_str = prom_getenv("ethaddr");
+	if (!ethaddr_str) {
+		/* Check command line */
+		ethaddr_str = strstr(arcs_cmdline, "ethaddr=");
+		if (!ethaddr_str)
+			return -1;
+
+		ethaddr_str += strlen("ethaddr=");
+	}
+
+	str2eaddr(ethernet_addr, ethaddr_str);
+
+	return 0;
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
diff --git a/kernel/arch/mips/alchemy/common/setup.c b/kernel/arch/mips/alchemy/common/setup.c
new file mode 100644
index 000000000..2902138b3
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/setup.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2000, 2007-2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com
+ *
+ * Updates to 2.6, Pete Popov, Embedded Alley Solutions, Inc.
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/ioport.h>
+
+#include <asm/dma-coherence.h>
+#include <asm/mipsregs.h>
+
+#include <au1000.h>
+
+extern void __init board_setup(void);
+extern void __init alchemy_set_lpj(void);
+
+void __init plat_mem_setup(void)
+{
+	alchemy_set_lpj();
+
+	if (au1xxx_cpu_needs_config_od())
+		/* Various early Au1xx0 errata corrected by this */
+		set_c0_config(1 << 19); /* Set Config[OD] */
+	else
+		/* Clear to obtain best system bus performance */
+		clear_c0_config(1 << 19); /* Clear Config[OD] */
+
+	hw_coherentio = 0;
+	coherentio = 1;
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+	case ALCHEMY_CPU_AU1100:
+		coherentio = 0;
+		break;
+	case ALCHEMY_CPU_AU1200:
+		/* Au1200 AB USB does not support coherent memory */
+		if (0 == (read_c0_prid() & PRID_REV_MASK))
+			coherentio = 0;
+		break;
+	}
+
+	board_setup();	/* board specific setup */
+
+	/* IO/MEM resources. */
+	set_io_port_base(0);
+	ioport_resource.start = IOPORT_RESOURCE_START;
+	ioport_resource.end = IOPORT_RESOURCE_END;
+	iomem_resource.start = IOMEM_RESOURCE_START;
+	iomem_resource.end = IOMEM_RESOURCE_END;
+}
+
+#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_PCI)
+/* This routine should be valid for all Au1x based boards */
+phys_addr_t __fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
+{
+	unsigned long start = ALCHEMY_PCI_MEMWIN_START;
+	unsigned long end = ALCHEMY_PCI_MEMWIN_END;
+
+	/* Don't fixup 36-bit addresses */
+	if ((phys_addr >> 32) != 0)
+		return phys_addr;
+
+	/* Check for PCI memory window */
+	if (phys_addr >= start && (phys_addr + size - 1) <= end)
+		return (phys_addr_t)(AU1500_PCI_MEM_PHYS_ADDR + phys_addr);
+
+	/* default nop */
+	return phys_addr;
+}
+EXPORT_SYMBOL(__fixup_bigphys_addr);
+#endif
diff --git a/kernel/arch/mips/alchemy/common/sleeper.S b/kernel/arch/mips/alchemy/common/sleeper.S
new file mode 100644
index 000000000..c73d81270
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/sleeper.S
@@ -0,0 +1,270 @@
+/*
+ * Copyright 2002 Embedded Edge, LLC
+ * Author: dan@embeddededge.com
+ *
+ * Sleep helper for Au1xxx sleep mode.
+ *
+ * This program is free software; you can redistribute	it and/or modify it
+ * under  the terms of	the GNU General	 Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+
+	.extern __flush_cache_all
+
+	.text
+	.set noreorder
+	.set noat
+	.align	5
+
+
+/* preparatory stuff */
+.macro	SETUP_SLEEP
+	subu	sp, PT_SIZE
+	sw	$1, PT_R1(sp)
+	sw	$2, PT_R2(sp)
+	sw	$3, PT_R3(sp)
+	sw	$4, PT_R4(sp)
+	sw	$5, PT_R5(sp)
+	sw	$6, PT_R6(sp)
+	sw	$7, PT_R7(sp)
+	sw	$16, PT_R16(sp)
+	sw	$17, PT_R17(sp)
+	sw	$18, PT_R18(sp)
+	sw	$19, PT_R19(sp)
+	sw	$20, PT_R20(sp)
+	sw	$21, PT_R21(sp)
+	sw	$22, PT_R22(sp)
+	sw	$23, PT_R23(sp)
+	sw	$26, PT_R26(sp)
+	sw	$27, PT_R27(sp)
+	sw	$28, PT_R28(sp)
+	sw	$30, PT_R30(sp)
+	sw	$31, PT_R31(sp)
+	mfc0	k0, CP0_STATUS
+	sw	k0, 0x20(sp)
+	mfc0	k0, CP0_CONTEXT
+	sw	k0, 0x1c(sp)
+	mfc0	k0, CP0_PAGEMASK
+	sw	k0, 0x18(sp)
+	mfc0	k0, CP0_CONFIG
+	sw	k0, 0x14(sp)
+
+	/* flush caches to make sure context is in memory */
+	la	t1, __flush_cache_all
+	lw	t0, 0(t1)
+	jalr	t0
+	 nop
+
+	/* Now set up the scratch registers so the boot rom will
+	 * return to this point upon wakeup.
+	 * sys_scratch0 : SP
+	 * sys_scratch1 : RA
+	 */
+	lui	t3, 0xb190		/* sys_xxx */
+	sw	sp, 0x0018(t3)
+	la	k0, alchemy_sleep_wakeup	/* resume path */
+	sw	k0, 0x001c(t3)
+.endm
+
+.macro	DO_SLEEP
+	/* put power supply and processor to sleep */
+	sw	zero, 0x0078(t3)	/* sys_slppwr */
+	sync
+	sw	zero, 0x007c(t3)	/* sys_sleep */
+	sync
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+.endm
+
+/* sleep code for Au1000/Au1100/Au1500 memory controller type */
+LEAF(alchemy_sleep_au1000)
+
+	SETUP_SLEEP
+
+	/* cache following instructions, as memory gets put to sleep */
+	la	t0, 1f
+	.set	arch=r4000
+	cache	0x14, 0(t0)
+	cache	0x14, 32(t0)
+	cache	0x14, 64(t0)
+	cache	0x14, 96(t0)
+	.set	mips0
+
+1:	lui	a0, 0xb400		/* mem_xxx */
+	sw	zero, 0x001c(a0)	/* Precharge */
+	sync
+	sw	zero, 0x0020(a0)	/* Auto Refresh */
+	sync
+	sw	zero, 0x0030(a0)	/* Sleep */
+	sync
+
+	DO_SLEEP
+
+END(alchemy_sleep_au1000)
+
+/* sleep code for Au1550/Au1200 memory controller type */
+LEAF(alchemy_sleep_au1550)
+
+	SETUP_SLEEP
+
+	/* cache following instructions, as memory gets put to sleep */
+	la	t0, 1f
+	.set	arch=r4000
+	cache	0x14, 0(t0)
+	cache	0x14, 32(t0)
+	cache	0x14, 64(t0)
+	cache	0x14, 96(t0)
+	.set	mips0
+
+1:	lui	a0, 0xb400		/* mem_xxx */
+	sw	zero, 0x08c0(a0)	/* Precharge */
+	sync
+	sw	zero, 0x08d0(a0)	/* Self Refresh */
+	sync
+
+	/* wait for sdram to enter self-refresh mode */
+	lui	t0, 0x0100
+2:	lw	t1, 0x0850(a0)		/* mem_sdstat */
+	and	t2, t1, t0
+	beq	t2, zero, 2b
+	 nop
+
+	/* disable SDRAM clocks */
+	lui	t0, 0xcfff
+	ori	t0, t0, 0xffff
+	lw	t1, 0x0840(a0)		/* mem_sdconfiga */
+	and	t1, t0, t1		/* clear CE[1:0] */
+	sw	t1, 0x0840(a0)		/* mem_sdconfiga */
+	sync
+
+	DO_SLEEP
+
+END(alchemy_sleep_au1550)
+
+/* sleepcode for Au1300 memory controller type */
+LEAF(alchemy_sleep_au1300)
+
+	SETUP_SLEEP
+
+	/* cache following instructions, as memory gets put to sleep */
+	la	t0, 2f
+	la	t1, 4f
+	subu	t2, t1, t0
+
+	.set	arch=r4000
+
+1:	cache	0x14, 0(t0)
+	subu	t2, t2, 32
+	bgez	t2, 1b
+	 addu	t0, t0, 32
+
+	.set	mips0
+
+2:	lui	a0, 0xb400		/* mem_xxx */
+
+	/* disable all ports in mem_sdportcfga */
+	sw	zero, 0x868(a0)		/* mem_sdportcfga */
+	sync
+
+	/* disable ODT */
+	li	t0, 0x03010000
+	sw	t0, 0x08d8(a0)		/* mem_sdcmd0 */
+	sw	t0, 0x08dc(a0)		/* mem_sdcmd1 */
+	sync
+
+	/* precharge */
+	li	t0, 0x23000400
+	sw	t0, 0x08dc(a0)		/* mem_sdcmd1 */
+	sw	t0, 0x08d8(a0)		/* mem_sdcmd0 */
+	sync
+
+	/* auto refresh */
+	sw	zero, 0x08c8(a0)	/* mem_sdautoref */
+	sync
+
+	/* block access to the DDR */
+	lw	t0, 0x0848(a0)		/* mem_sdconfigb */
+	li	t1, (1 << 7 | 0x3F)
+	or	t0, t0, t1
+	sw	t0, 0x0848(a0)		/* mem_sdconfigb */
+	sync
+
+	/* issue the Self Refresh command */
+	li	t0, 0x10000000
+	sw	t0, 0x08dc(a0)		/* mem_sdcmd1 */
+	sw	t0, 0x08d8(a0)		/* mem_sdcmd0 */
+	sync
+
+	/* wait for sdram to enter self-refresh mode */
+	lui	t0, 0x0300
+3:	lw	t1, 0x0850(a0)		/* mem_sdstat */
+	and	t2, t1, t0
+	bne	t2, t0, 3b
+	 nop
+
+	/* disable SDRAM clocks */
+	li	t0, ~(3<<28)
+	lw	t1, 0x0840(a0)		/* mem_sdconfiga */
+	and	t1, t1, t0		/* clear CE[1:0] */
+	sw	t1, 0x0840(a0)		/* mem_sdconfiga */
+	sync
+
+	DO_SLEEP
+4:
+
+END(alchemy_sleep_au1300)
+
+
+	/* This is where we return upon wakeup.
+	 * Reload all of the registers and return.
+	 */
+LEAF(alchemy_sleep_wakeup)
+	lw	k0, 0x20(sp)
+	mtc0	k0, CP0_STATUS
+	lw	k0, 0x1c(sp)
+	mtc0	k0, CP0_CONTEXT
+	lw	k0, 0x18(sp)
+	mtc0	k0, CP0_PAGEMASK
+	lw	k0, 0x14(sp)
+	mtc0	k0, CP0_CONFIG
+
+	/* We need to catch the early Alchemy SOCs with
+	 * the write-only Config[OD] bit and set it back to one...
+	 */
+	jal	au1x00_fixup_config_od
+	 nop
+	lw	$1, PT_R1(sp)
+	lw	$2, PT_R2(sp)
+	lw	$3, PT_R3(sp)
+	lw	$4, PT_R4(sp)
+	lw	$5, PT_R5(sp)
+	lw	$6, PT_R6(sp)
+	lw	$7, PT_R7(sp)
+	lw	$16, PT_R16(sp)
+	lw	$17, PT_R17(sp)
+	lw	$18, PT_R18(sp)
+	lw	$19, PT_R19(sp)
+	lw	$20, PT_R20(sp)
+	lw	$21, PT_R21(sp)
+	lw	$22, PT_R22(sp)
+	lw	$23, PT_R23(sp)
+	lw	$26, PT_R26(sp)
+	lw	$27, PT_R27(sp)
+	lw	$28, PT_R28(sp)
+	lw	$30, PT_R30(sp)
+	lw	$31, PT_R31(sp)
+	jr	ra
+	 addiu	sp, PT_SIZE
+END(alchemy_sleep_wakeup)
diff --git a/kernel/arch/mips/alchemy/common/time.c b/kernel/arch/mips/alchemy/common/time.c
new file mode 100644
index 000000000..50e17e13c
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/time.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2008-2009 Manuel Lauss <manuel.lauss@gmail.com>
+ *
+ * Previous incarnations were:
+ * Copyright (C) 2001, 2006, 2008 MontaVista Software, <source@mvista.com>
+ * Copied and modified Carsten Langgaard's time.c
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ * ########################################################################
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * ########################################################################
+ *
+ * Clocksource/event using the 32.768kHz-clocked Counter1 ('RTC' in the
+ * databooks).  Firmware/Board init code must enable the counters in the
+ * counter control register, otherwise the CP0 counter clocksource/event
+ * will be installed instead (and use of 'wait' instruction is prohibited).
+ */
+
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+
+#include <asm/idle.h>
+#include <asm/processor.h>
+#include <asm/time.h>
+#include <asm/mach-au1x00/au1000.h>
+
+/* 32kHz clock enabled and detected */
+#define CNTR_OK (SYS_CNTRL_E0 | SYS_CNTRL_32S)
+
+static cycle_t au1x_counter1_read(struct clocksource *cs)
+{
+	return alchemy_rdsys(AU1000_SYS_RTCREAD);
+}
+
+static struct clocksource au1x_counter1_clocksource = {
+	.name		= "alchemy-counter1",
+	.read		= au1x_counter1_read,
+	.mask		= CLOCKSOURCE_MASK(32),
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+	.rating		= 1500,
+};
+
+static int au1x_rtcmatch2_set_next_event(unsigned long delta,
+					 struct clock_event_device *cd)
+{
+	delta += alchemy_rdsys(AU1000_SYS_RTCREAD);
+	/* wait for register access */
+	while (alchemy_rdsys(AU1000_SYS_CNTRCTRL) & SYS_CNTRL_M21)
+		;
+	alchemy_wrsys(delta, AU1000_SYS_RTCMATCH2);
+
+	return 0;
+}
+
+static void au1x_rtcmatch2_set_mode(enum clock_event_mode mode,
+				    struct clock_event_device *cd)
+{
+}
+
+static irqreturn_t au1x_rtcmatch2_irq(int irq, void *dev_id)
+{
+	struct clock_event_device *cd = dev_id;
+	cd->event_handler(cd);
+	return IRQ_HANDLED;
+}
+
+static struct clock_event_device au1x_rtcmatch2_clockdev = {
+	.name		= "rtcmatch2",
+	.features	= CLOCK_EVT_FEAT_ONESHOT,
+	.rating		= 1500,
+	.set_next_event = au1x_rtcmatch2_set_next_event,
+	.set_mode	= au1x_rtcmatch2_set_mode,
+	.cpumask	= cpu_all_mask,
+};
+
+static struct irqaction au1x_rtcmatch2_irqaction = {
+	.handler	= au1x_rtcmatch2_irq,
+	.flags		= IRQF_TIMER,
+	.name		= "timer",
+	.dev_id		= &au1x_rtcmatch2_clockdev,
+};
+
+static int __init alchemy_time_init(unsigned int m2int)
+{
+	struct clock_event_device *cd = &au1x_rtcmatch2_clockdev;
+	unsigned long t;
+
+	au1x_rtcmatch2_clockdev.irq = m2int;
+
+	/* Check if firmware (YAMON, ...) has enabled 32kHz and clock
+	 * has been detected.  If so install the rtcmatch2 clocksource,
+	 * otherwise don't bother.  Note that both bits being set is by
+	 * no means a definite guarantee that the counters actually work
+	 * (the 32S bit seems to be stuck set to 1 once a single clock-
+	 * edge is detected, hence the timeouts).
+	 */
+	if (CNTR_OK != (alchemy_rdsys(AU1000_SYS_CNTRCTRL) & CNTR_OK))
+		goto cntr_err;
+
+	/*
+	 * setup counter 1 (RTC) to tick at full speed
+	 */
+	t = 0xffffff;
+	while ((alchemy_rdsys(AU1000_SYS_CNTRCTRL) & SYS_CNTRL_T1S) && --t)
+		asm volatile ("nop");
+	if (!t)
+		goto cntr_err;
+
+	alchemy_wrsys(0, AU1000_SYS_RTCTRIM);	/* 32.768 kHz */
+
+	t = 0xffffff;
+	while ((alchemy_rdsys(AU1000_SYS_CNTRCTRL) & SYS_CNTRL_C1S) && --t)
+		asm volatile ("nop");
+	if (!t)
+		goto cntr_err;
+	alchemy_wrsys(0, AU1000_SYS_RTCWRITE);
+
+	t = 0xffffff;
+	while ((alchemy_rdsys(AU1000_SYS_CNTRCTRL) & SYS_CNTRL_C1S) && --t)
+		asm volatile ("nop");
+	if (!t)
+		goto cntr_err;
+
+	/* register counter1 clocksource and event device */
+	clocksource_register_hz(&au1x_counter1_clocksource, 32768);
+
+	cd->shift = 32;
+	cd->mult = div_sc(32768, NSEC_PER_SEC, cd->shift);
+	cd->max_delta_ns = clockevent_delta2ns(0xffffffff, cd);
+	cd->min_delta_ns = clockevent_delta2ns(9, cd);	/* ~0.28ms */
+	clockevents_register_device(cd);
+	setup_irq(m2int, &au1x_rtcmatch2_irqaction);
+
+	printk(KERN_INFO "Alchemy clocksource installed\n");
+
+	return 0;
+
+cntr_err:
+	return -1;
+}
+
+static int alchemy_m2inttab[] __initdata = {
+	AU1000_RTC_MATCH2_INT,
+	AU1500_RTC_MATCH2_INT,
+	AU1100_RTC_MATCH2_INT,
+	AU1550_RTC_MATCH2_INT,
+	AU1200_RTC_MATCH2_INT,
+	AU1300_RTC_MATCH2_INT,
+};
+
+void __init plat_time_init(void)
+{
+	int t;
+
+	t = alchemy_get_cputype();
+	if (t == ALCHEMY_CPU_UNKNOWN ||
+	    alchemy_time_init(alchemy_m2inttab[t]))
+		cpu_wait = NULL;	/* wait doesn't work with r4k timer */
+}
diff --git a/kernel/arch/mips/alchemy/common/usb.c b/kernel/arch/mips/alchemy/common/usb.c
new file mode 100644
index 000000000..297805ade
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/usb.c
@@ -0,0 +1,626 @@
+/*
+ * USB block power/access management abstraction.
+ *
+ * Au1000+: The OHCI block control register is at the far end of the OHCI memory
+ *	    area. Au1550 has OHCI on different base address. No need to handle
+ *	    UDC here.
+ * Au1200:  one register to control access and clocks to O/EHCI, UDC and OTG
+ *	    as well as the PHY for EHCI and UDC.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/syscore_ops.h>
+#include <asm/cpu.h>
+#include <asm/mach-au1x00/au1000.h>
+
+/* control register offsets */
+#define AU1000_OHCICFG	0x7fffc
+#define AU1550_OHCICFG	0x07ffc
+#define AU1200_USBCFG	0x04
+
+/* Au1000 USB block config bits */
+#define USBHEN_RD	(1 << 4)		/* OHCI reset-done indicator */
+#define USBHEN_CE	(1 << 3)		/* OHCI block clock enable */
+#define USBHEN_E	(1 << 2)		/* OHCI block enable */
+#define USBHEN_C	(1 << 1)		/* OHCI block coherency bit */
+#define USBHEN_BE	(1 << 0)		/* OHCI Big-Endian */
+
+/* Au1200 USB config bits */
+#define USBCFG_PFEN	(1 << 31)		/* prefetch enable (undoc) */
+#define USBCFG_RDCOMB	(1 << 30)		/* read combining (undoc) */
+#define USBCFG_UNKNOWN	(5 << 20)		/* unknown, leave this way */
+#define USBCFG_SSD	(1 << 23)		/* serial short detect en */
+#define USBCFG_PPE	(1 << 19)		/* HS PHY PLL */
+#define USBCFG_UCE	(1 << 18)		/* UDC clock enable */
+#define USBCFG_ECE	(1 << 17)		/* EHCI clock enable */
+#define USBCFG_OCE	(1 << 16)		/* OHCI clock enable */
+#define USBCFG_FLA(x)	(((x) & 0x3f) << 8)
+#define USBCFG_UCAM	(1 << 7)		/* coherent access (undoc) */
+#define USBCFG_GME	(1 << 6)		/* OTG mem access */
+#define USBCFG_DBE	(1 << 5)		/* UDC busmaster enable */
+#define USBCFG_DME	(1 << 4)		/* UDC mem enable */
+#define USBCFG_EBE	(1 << 3)		/* EHCI busmaster enable */
+#define USBCFG_EME	(1 << 2)		/* EHCI mem enable */
+#define USBCFG_OBE	(1 << 1)		/* OHCI busmaster enable */
+#define USBCFG_OME	(1 << 0)		/* OHCI mem enable */
+#define USBCFG_INIT_AU1200	(USBCFG_PFEN | USBCFG_RDCOMB | USBCFG_UNKNOWN |\
+				 USBCFG_SSD | USBCFG_FLA(0x20) | USBCFG_UCAM | \
+				 USBCFG_GME | USBCFG_DBE | USBCFG_DME |	       \
+				 USBCFG_EBE | USBCFG_EME | USBCFG_OBE |	       \
+				 USBCFG_OME)
+
+/* Au1300 USB config registers */
+#define USB_DWC_CTRL1		0x00
+#define USB_DWC_CTRL2		0x04
+#define USB_VBUS_TIMER		0x10
+#define USB_SBUS_CTRL		0x14
+#define USB_MSR_ERR		0x18
+#define USB_DWC_CTRL3		0x1C
+#define USB_DWC_CTRL4		0x20
+#define USB_OTG_STATUS		0x28
+#define USB_DWC_CTRL5		0x2C
+#define USB_DWC_CTRL6		0x30
+#define USB_DWC_CTRL7		0x34
+#define USB_PHY_STATUS		0xC0
+#define USB_INT_STATUS		0xC4
+#define USB_INT_ENABLE		0xC8
+
+#define USB_DWC_CTRL1_OTGD	0x04 /* set to DISable OTG */
+#define USB_DWC_CTRL1_HSTRS	0x02 /* set to ENable EHCI */
+#define USB_DWC_CTRL1_DCRS	0x01 /* set to ENable UDC */
+
+#define USB_DWC_CTRL2_PHY1RS	0x04 /* set to enable PHY1 */
+#define USB_DWC_CTRL2_PHY0RS	0x02 /* set to enable PHY0 */
+#define USB_DWC_CTRL2_PHYRS	0x01 /* set to enable PHY */
+
+#define USB_DWC_CTRL3_OHCI1_CKEN	(1 << 19)
+#define USB_DWC_CTRL3_OHCI0_CKEN	(1 << 18)
+#define USB_DWC_CTRL3_EHCI0_CKEN	(1 << 17)
+#define USB_DWC_CTRL3_OTG0_CKEN		(1 << 16)
+
+#define USB_SBUS_CTRL_SBCA		0x04 /* coherent access */
+
+#define USB_INTEN_FORCE			0x20
+#define USB_INTEN_PHY			0x10
+#define USB_INTEN_UDC			0x08
+#define USB_INTEN_EHCI			0x04
+#define USB_INTEN_OHCI1			0x02
+#define USB_INTEN_OHCI0			0x01
+
+static DEFINE_SPINLOCK(alchemy_usb_lock);
+
+static inline void __au1300_usb_phyctl(void __iomem *base, int enable)
+{
+	unsigned long r, s;
+
+	r = __raw_readl(base + USB_DWC_CTRL2);
+	s = __raw_readl(base + USB_DWC_CTRL3);
+
+	s &= USB_DWC_CTRL3_OHCI1_CKEN | USB_DWC_CTRL3_OHCI0_CKEN |
+		USB_DWC_CTRL3_EHCI0_CKEN | USB_DWC_CTRL3_OTG0_CKEN;
+
+	if (enable) {
+		/* simply enable all PHYs */
+		r |= USB_DWC_CTRL2_PHY1RS | USB_DWC_CTRL2_PHY0RS |
+		     USB_DWC_CTRL2_PHYRS;
+		__raw_writel(r, base + USB_DWC_CTRL2);
+		wmb();
+	} else if (!s) {
+		/* no USB block active, do disable all PHYs */
+		r &= ~(USB_DWC_CTRL2_PHY1RS | USB_DWC_CTRL2_PHY0RS |
+		       USB_DWC_CTRL2_PHYRS);
+		__raw_writel(r, base + USB_DWC_CTRL2);
+		wmb();
+	}
+}
+
+static inline void __au1300_ohci_control(void __iomem *base, int enable, int id)
+{
+	unsigned long r;
+
+	if (enable) {
+		__raw_writel(1, base + USB_DWC_CTRL7);	/* start OHCI clock */
+		wmb();
+
+		r = __raw_readl(base + USB_DWC_CTRL3);	/* enable OHCI block */
+		r |= (id == 0) ? USB_DWC_CTRL3_OHCI0_CKEN
+			       : USB_DWC_CTRL3_OHCI1_CKEN;
+		__raw_writel(r, base + USB_DWC_CTRL3);
+		wmb();
+
+		__au1300_usb_phyctl(base, enable);	/* power up the PHYs */
+
+		r = __raw_readl(base + USB_INT_ENABLE);
+		r |= (id == 0) ? USB_INTEN_OHCI0 : USB_INTEN_OHCI1;
+		__raw_writel(r, base + USB_INT_ENABLE);
+		wmb();
+
+		/* reset the OHCI start clock bit */
+		__raw_writel(0, base + USB_DWC_CTRL7);
+		wmb();
+	} else {
+		r = __raw_readl(base + USB_INT_ENABLE);
+		r &= ~((id == 0) ? USB_INTEN_OHCI0 : USB_INTEN_OHCI1);
+		__raw_writel(r, base + USB_INT_ENABLE);
+		wmb();
+
+		r = __raw_readl(base + USB_DWC_CTRL3);
+		r &= ~((id == 0) ? USB_DWC_CTRL3_OHCI0_CKEN
+				 : USB_DWC_CTRL3_OHCI1_CKEN);
+		__raw_writel(r, base + USB_DWC_CTRL3);
+		wmb();
+
+		__au1300_usb_phyctl(base, enable);
+	}
+}
+
+static inline void __au1300_ehci_control(void __iomem *base, int enable)
+{
+	unsigned long r;
+
+	if (enable) {
+		r = __raw_readl(base + USB_DWC_CTRL3);
+		r |= USB_DWC_CTRL3_EHCI0_CKEN;
+		__raw_writel(r, base + USB_DWC_CTRL3);
+		wmb();
+
+		r = __raw_readl(base + USB_DWC_CTRL1);
+		r |= USB_DWC_CTRL1_HSTRS;
+		__raw_writel(r, base + USB_DWC_CTRL1);
+		wmb();
+
+		__au1300_usb_phyctl(base, enable);
+
+		r = __raw_readl(base + USB_INT_ENABLE);
+		r |= USB_INTEN_EHCI;
+		__raw_writel(r, base + USB_INT_ENABLE);
+		wmb();
+	} else {
+		r = __raw_readl(base + USB_INT_ENABLE);
+		r &= ~USB_INTEN_EHCI;
+		__raw_writel(r, base + USB_INT_ENABLE);
+		wmb();
+
+		r = __raw_readl(base + USB_DWC_CTRL1);
+		r &= ~USB_DWC_CTRL1_HSTRS;
+		__raw_writel(r, base + USB_DWC_CTRL1);
+		wmb();
+
+		r = __raw_readl(base + USB_DWC_CTRL3);
+		r &= ~USB_DWC_CTRL3_EHCI0_CKEN;
+		__raw_writel(r, base + USB_DWC_CTRL3);
+		wmb();
+
+		__au1300_usb_phyctl(base, enable);
+	}
+}
+
+static inline void __au1300_udc_control(void __iomem *base, int enable)
+{
+	unsigned long r;
+
+	if (enable) {
+		r = __raw_readl(base + USB_DWC_CTRL1);
+		r |= USB_DWC_CTRL1_DCRS;
+		__raw_writel(r, base + USB_DWC_CTRL1);
+		wmb();
+
+		__au1300_usb_phyctl(base, enable);
+
+		r = __raw_readl(base + USB_INT_ENABLE);
+		r |= USB_INTEN_UDC;
+		__raw_writel(r, base + USB_INT_ENABLE);
+		wmb();
+	} else {
+		r = __raw_readl(base + USB_INT_ENABLE);
+		r &= ~USB_INTEN_UDC;
+		__raw_writel(r, base + USB_INT_ENABLE);
+		wmb();
+
+		r = __raw_readl(base + USB_DWC_CTRL1);
+		r &= ~USB_DWC_CTRL1_DCRS;
+		__raw_writel(r, base + USB_DWC_CTRL1);
+		wmb();
+
+		__au1300_usb_phyctl(base, enable);
+	}
+}
+
+static inline void __au1300_otg_control(void __iomem *base, int enable)
+{
+	unsigned long r;
+	if (enable) {
+		r = __raw_readl(base + USB_DWC_CTRL3);
+		r |= USB_DWC_CTRL3_OTG0_CKEN;
+		__raw_writel(r, base + USB_DWC_CTRL3);
+		wmb();
+
+		r = __raw_readl(base + USB_DWC_CTRL1);
+		r &= ~USB_DWC_CTRL1_OTGD;
+		__raw_writel(r, base + USB_DWC_CTRL1);
+		wmb();
+
+		__au1300_usb_phyctl(base, enable);
+	} else {
+		r = __raw_readl(base + USB_DWC_CTRL1);
+		r |= USB_DWC_CTRL1_OTGD;
+		__raw_writel(r, base + USB_DWC_CTRL1);
+		wmb();
+
+		r = __raw_readl(base + USB_DWC_CTRL3);
+		r &= ~USB_DWC_CTRL3_OTG0_CKEN;
+		__raw_writel(r, base + USB_DWC_CTRL3);
+		wmb();
+
+		__au1300_usb_phyctl(base, enable);
+	}
+}
+
+static inline int au1300_usb_control(int block, int enable)
+{
+	void __iomem *base =
+		(void __iomem *)KSEG1ADDR(AU1300_USB_CTL_PHYS_ADDR);
+	int ret = 0;
+
+	switch (block) {
+	case ALCHEMY_USB_OHCI0:
+		__au1300_ohci_control(base, enable, 0);
+		break;
+	case ALCHEMY_USB_OHCI1:
+		__au1300_ohci_control(base, enable, 1);
+		break;
+	case ALCHEMY_USB_EHCI0:
+		__au1300_ehci_control(base, enable);
+		break;
+	case ALCHEMY_USB_UDC0:
+		__au1300_udc_control(base, enable);
+		break;
+	case ALCHEMY_USB_OTG0:
+		__au1300_otg_control(base, enable);
+		break;
+	default:
+		ret = -ENODEV;
+	}
+	return ret;
+}
+
+static inline void au1300_usb_init(void)
+{
+	void __iomem *base =
+		(void __iomem *)KSEG1ADDR(AU1300_USB_CTL_PHYS_ADDR);
+
+	/* set some sane defaults.  Note: we don't fiddle with DWC_CTRL4
+	 * here at all: Port 2 routing (EHCI or UDC) must be set either
+	 * by boot firmware or platform init code; I can't autodetect
+	 * a sane setting.
+	 */
+	__raw_writel(0, base + USB_INT_ENABLE); /* disable all USB irqs */
+	wmb();
+	__raw_writel(0, base + USB_DWC_CTRL3); /* disable all clocks */
+	wmb();
+	__raw_writel(~0, base + USB_MSR_ERR); /* clear all errors */
+	wmb();
+	__raw_writel(~0, base + USB_INT_STATUS); /* clear int status */
+	wmb();
+	/* set coherent access bit */
+	__raw_writel(USB_SBUS_CTRL_SBCA, base + USB_SBUS_CTRL);
+	wmb();
+}
+
+static inline void __au1200_ohci_control(void __iomem *base, int enable)
+{
+	unsigned long r = __raw_readl(base + AU1200_USBCFG);
+	if (enable) {
+		__raw_writel(r | USBCFG_OCE, base + AU1200_USBCFG);
+		wmb();
+		udelay(2000);
+	} else {
+		__raw_writel(r & ~USBCFG_OCE, base + AU1200_USBCFG);
+		wmb();
+		udelay(1000);
+	}
+}
+
+static inline void __au1200_ehci_control(void __iomem *base, int enable)
+{
+	unsigned long r = __raw_readl(base + AU1200_USBCFG);
+	if (enable) {
+		__raw_writel(r | USBCFG_ECE | USBCFG_PPE, base + AU1200_USBCFG);
+		wmb();
+		udelay(1000);
+	} else {
+		if (!(r & USBCFG_UCE))		/* UDC also off? */
+			r &= ~USBCFG_PPE;	/* yes: disable HS PHY PLL */
+		__raw_writel(r & ~USBCFG_ECE, base + AU1200_USBCFG);
+		wmb();
+		udelay(1000);
+	}
+}
+
+static inline void __au1200_udc_control(void __iomem *base, int enable)
+{
+	unsigned long r = __raw_readl(base + AU1200_USBCFG);
+	if (enable) {
+		__raw_writel(r | USBCFG_UCE | USBCFG_PPE, base + AU1200_USBCFG);
+		wmb();
+	} else {
+		if (!(r & USBCFG_ECE))		/* EHCI also off? */
+			r &= ~USBCFG_PPE;	/* yes: disable HS PHY PLL */
+		__raw_writel(r & ~USBCFG_UCE, base + AU1200_USBCFG);
+		wmb();
+	}
+}
+
+static inline int au1200_usb_control(int block, int enable)
+{
+	void __iomem *base =
+			(void __iomem *)KSEG1ADDR(AU1200_USB_CTL_PHYS_ADDR);
+
+	switch (block) {
+	case ALCHEMY_USB_OHCI0:
+		__au1200_ohci_control(base, enable);
+		break;
+	case ALCHEMY_USB_UDC0:
+		__au1200_udc_control(base, enable);
+		break;
+	case ALCHEMY_USB_EHCI0:
+		__au1200_ehci_control(base, enable);
+		break;
+	default:
+		return -ENODEV;
+	}
+	return 0;
+}
+
+
+/* initialize USB block(s) to a known working state */
+static inline void au1200_usb_init(void)
+{
+	void __iomem *base =
+			(void __iomem *)KSEG1ADDR(AU1200_USB_CTL_PHYS_ADDR);
+	__raw_writel(USBCFG_INIT_AU1200, base + AU1200_USBCFG);
+	wmb();
+	udelay(1000);
+}
+
+static inline int au1000_usb_init(unsigned long rb, int reg)
+{
+	void __iomem *base = (void __iomem *)KSEG1ADDR(rb + reg);
+	unsigned long r = __raw_readl(base);
+	struct clk *c;
+
+	/* 48MHz check. Don't init if no one can provide it */
+	c = clk_get(NULL, "usbh_clk");
+	if (IS_ERR(c))
+		return -ENODEV;
+	if (clk_round_rate(c, 48000000) != 48000000) {
+		clk_put(c);
+		return -ENODEV;
+	}
+	if (clk_set_rate(c, 48000000)) {
+		clk_put(c);
+		return -ENODEV;
+	}
+	clk_put(c);
+
+#if defined(__BIG_ENDIAN)
+	r |= USBHEN_BE;
+#endif
+	r |= USBHEN_C;
+
+	__raw_writel(r, base);
+	wmb();
+	udelay(1000);
+
+	return 0;
+}
+
+
+static inline void __au1xx0_ohci_control(int enable, unsigned long rb, int creg)
+{
+	void __iomem *base = (void __iomem *)KSEG1ADDR(rb);
+	unsigned long r = __raw_readl(base + creg);
+	struct clk *c = clk_get(NULL, "usbh_clk");
+
+	if (IS_ERR(c))
+		return;
+
+	if (enable) {
+		if (clk_prepare_enable(c))
+			goto out;
+
+		__raw_writel(r | USBHEN_CE, base + creg);
+		wmb();
+		udelay(1000);
+		__raw_writel(r | USBHEN_CE | USBHEN_E, base + creg);
+		wmb();
+		udelay(1000);
+
+		/* wait for reset complete (read reg twice: au1500 erratum) */
+		while (__raw_readl(base + creg),
+			!(__raw_readl(base + creg) & USBHEN_RD))
+			udelay(1000);
+	} else {
+		__raw_writel(r & ~(USBHEN_CE | USBHEN_E), base + creg);
+		wmb();
+		clk_disable_unprepare(c);
+	}
+out:
+	clk_put(c);
+}
+
+static inline int au1000_usb_control(int block, int enable, unsigned long rb,
+				     int creg)
+{
+	int ret = 0;
+
+	switch (block) {
+	case ALCHEMY_USB_OHCI0:
+		__au1xx0_ohci_control(enable, rb, creg);
+		break;
+	default:
+		ret = -ENODEV;
+	}
+	return ret;
+}
+
+/*
+ * alchemy_usb_control - control Alchemy on-chip USB blocks
+ * @block:	USB block to target
+ * @enable:	set 1 to enable a block, 0 to disable
+ */
+int alchemy_usb_control(int block, int enable)
+{
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&alchemy_usb_lock, flags);
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+	case ALCHEMY_CPU_AU1100:
+		ret = au1000_usb_control(block, enable,
+			AU1000_USB_OHCI_PHYS_ADDR, AU1000_OHCICFG);
+		break;
+	case ALCHEMY_CPU_AU1550:
+		ret = au1000_usb_control(block, enable,
+			AU1550_USB_OHCI_PHYS_ADDR, AU1550_OHCICFG);
+		break;
+	case ALCHEMY_CPU_AU1200:
+		ret = au1200_usb_control(block, enable);
+		break;
+	case ALCHEMY_CPU_AU1300:
+		ret = au1300_usb_control(block, enable);
+		break;
+	default:
+		ret = -ENODEV;
+	}
+	spin_unlock_irqrestore(&alchemy_usb_lock, flags);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(alchemy_usb_control);
+
+
+static unsigned long alchemy_usb_pmdata[2];
+
+static void au1000_usb_pm(unsigned long br, int creg, int susp)
+{
+	void __iomem *base = (void __iomem *)KSEG1ADDR(br);
+
+	if (susp) {
+		alchemy_usb_pmdata[0] = __raw_readl(base + creg);
+		/* There appears to be some undocumented reset register.... */
+		__raw_writel(0, base + 0x04);
+		wmb();
+		__raw_writel(0, base + creg);
+		wmb();
+	} else {
+		__raw_writel(alchemy_usb_pmdata[0], base + creg);
+		wmb();
+	}
+}
+
+static void au1200_usb_pm(int susp)
+{
+	void __iomem *base =
+			(void __iomem *)KSEG1ADDR(AU1200_USB_OTG_PHYS_ADDR);
+	if (susp) {
+		/* save OTG_CAP/MUX registers which indicate port routing */
+		/* FIXME: write an OTG driver to do that */
+		alchemy_usb_pmdata[0] = __raw_readl(base + 0x00);
+		alchemy_usb_pmdata[1] = __raw_readl(base + 0x04);
+	} else {
+		/* restore access to all MMIO areas */
+		au1200_usb_init();
+
+		/* restore OTG_CAP/MUX registers */
+		__raw_writel(alchemy_usb_pmdata[0], base + 0x00);
+		__raw_writel(alchemy_usb_pmdata[1], base + 0x04);
+		wmb();
+	}
+}
+
+static void au1300_usb_pm(int susp)
+{
+	void __iomem *base =
+			(void __iomem *)KSEG1ADDR(AU1300_USB_CTL_PHYS_ADDR);
+	/* remember Port2 routing */
+	if (susp) {
+		alchemy_usb_pmdata[0] = __raw_readl(base + USB_DWC_CTRL4);
+	} else {
+		au1300_usb_init();
+		__raw_writel(alchemy_usb_pmdata[0], base + USB_DWC_CTRL4);
+		wmb();
+	}
+}
+
+static void alchemy_usb_pm(int susp)
+{
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+	case ALCHEMY_CPU_AU1100:
+		au1000_usb_pm(AU1000_USB_OHCI_PHYS_ADDR, AU1000_OHCICFG, susp);
+		break;
+	case ALCHEMY_CPU_AU1550:
+		au1000_usb_pm(AU1550_USB_OHCI_PHYS_ADDR, AU1550_OHCICFG, susp);
+		break;
+	case ALCHEMY_CPU_AU1200:
+		au1200_usb_pm(susp);
+		break;
+	case ALCHEMY_CPU_AU1300:
+		au1300_usb_pm(susp);
+		break;
+	}
+}
+
+static int alchemy_usb_suspend(void)
+{
+	alchemy_usb_pm(1);
+	return 0;
+}
+
+static void alchemy_usb_resume(void)
+{
+	alchemy_usb_pm(0);
+}
+
+static struct syscore_ops alchemy_usb_pm_ops = {
+	.suspend	= alchemy_usb_suspend,
+	.resume		= alchemy_usb_resume,
+};
+
+static int __init alchemy_usb_init(void)
+{
+	int ret = 0;
+
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+	case ALCHEMY_CPU_AU1100:
+		ret = au1000_usb_init(AU1000_USB_OHCI_PHYS_ADDR,
+				      AU1000_OHCICFG);
+		break;
+	case ALCHEMY_CPU_AU1550:
+		ret = au1000_usb_init(AU1550_USB_OHCI_PHYS_ADDR,
+				      AU1550_OHCICFG);
+		break;
+	case ALCHEMY_CPU_AU1200:
+		au1200_usb_init();
+		break;
+	case ALCHEMY_CPU_AU1300:
+		au1300_usb_init();
+		break;
+	}
+
+	if (!ret)
+		register_syscore_ops(&alchemy_usb_pm_ops);
+
+	return ret;
+}
+arch_initcall(alchemy_usb_init);
diff --git a/kernel/arch/mips/alchemy/common/vss.c b/kernel/arch/mips/alchemy/common/vss.c
new file mode 100644
index 000000000..d23b1444d
--- /dev/null
+++ b/kernel/arch/mips/alchemy/common/vss.c
@@ -0,0 +1,84 @@
+/*
+ * Au1300 media block power gating (VSS)
+ *
+ * This is a stop-gap solution until I have the clock framework integration
+ * ready. This stuff here really must be handled transparently when clocks
+ * for various media blocks are enabled/disabled.
+ */
+
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <asm/mach-au1x00/au1000.h>
+
+#define VSS_GATE	0x00	/* gate wait timers */
+#define VSS_CLKRST	0x04	/* clock/block control */
+#define VSS_FTR		0x08	/* footers */
+
+#define VSS_ADDR(blk)	(KSEG1ADDR(AU1300_VSS_PHYS_ADDR) + (blk * 0x0c))
+
+static DEFINE_SPINLOCK(au1300_vss_lock);
+
+/* enable a block as outlined in the databook */
+static inline void __enable_block(int block)
+{
+	void __iomem *base = (void __iomem *)VSS_ADDR(block);
+
+	__raw_writel(3, base + VSS_CLKRST);	/* enable clock, assert reset */
+	wmb();
+
+	__raw_writel(0x01fffffe, base + VSS_GATE); /* maximum setup time */
+	wmb();
+
+	/* enable footers in sequence */
+	__raw_writel(0x01, base + VSS_FTR);
+	wmb();
+	__raw_writel(0x03, base + VSS_FTR);
+	wmb();
+	__raw_writel(0x07, base + VSS_FTR);
+	wmb();
+	__raw_writel(0x0f, base + VSS_FTR);
+	wmb();
+
+	__raw_writel(0x01ffffff, base + VSS_GATE); /* start FSM too */
+	wmb();
+
+	__raw_writel(2, base + VSS_CLKRST);	/* deassert reset */
+	wmb();
+
+	__raw_writel(0x1f, base + VSS_FTR);	/* enable isolation cells */
+	wmb();
+}
+
+/* disable a block as outlined in the databook */
+static inline void __disable_block(int block)
+{
+	void __iomem *base = (void __iomem *)VSS_ADDR(block);
+
+	__raw_writel(0x0f, base + VSS_FTR);	/* disable isolation cells */
+	wmb();
+	__raw_writel(0, base + VSS_GATE);	/* disable FSM */
+	wmb();
+	__raw_writel(3, base + VSS_CLKRST);	/* assert reset */
+	wmb();
+	__raw_writel(1, base + VSS_CLKRST);	/* disable clock */
+	wmb();
+	__raw_writel(0, base + VSS_FTR);	/* disable all footers */
+	wmb();
+}
+
+void au1300_vss_block_control(int block, int enable)
+{
+	unsigned long flags;
+
+	if (alchemy_get_cputype() != ALCHEMY_CPU_AU1300)
+		return;
+
+	/* only one block at a time */
+	spin_lock_irqsave(&au1300_vss_lock, flags);
+	if (enable)
+		__enable_block(block);
+	else
+		__disable_block(block);
+	spin_unlock_irqrestore(&au1300_vss_lock, flags);
+}
+EXPORT_SYMBOL_GPL(au1300_vss_block_control);
diff --git a/kernel/arch/mips/alchemy/devboards/Makefile b/kernel/arch/mips/alchemy/devboards/Makefile
new file mode 100644
index 000000000..9da3659a9
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/Makefile
@@ -0,0 +1,6 @@
+#
+# Alchemy Develboards
+#
+
+obj-y += bcsr.o platform.o db1000.o db1200.o db1300.o db1550.o db1xxx.o
+obj-$(CONFIG_PM)		+= pm.o
diff --git a/kernel/arch/mips/alchemy/devboards/bcsr.c b/kernel/arch/mips/alchemy/devboards/bcsr.c
new file mode 100644
index 000000000..c98c9ea33
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/bcsr.c
@@ -0,0 +1,143 @@
+/*
+ * bcsr.h -- Db1xxx/Pb1xxx Devboard CPLD registers ("BCSR") abstraction.
+ *
+ * All Alchemy development boards (except, of course, the weird PB1000)
+ * have a few registers in a CPLD with standardised layout; they mostly
+ * only differ in base address.
+ * All registers are 16bits wide with 32bit spacing.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/irq.h>
+#include <asm/addrspace.h>
+#include <asm/io.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+static struct bcsr_reg {
+	void __iomem *raddr;
+	spinlock_t lock;
+} bcsr_regs[BCSR_CNT];
+
+static void __iomem *bcsr_virt; /* KSEG1 addr of BCSR base */
+static int bcsr_csc_base;	/* linux-irq of first cascaded irq */
+
+void __init bcsr_init(unsigned long bcsr1_phys, unsigned long bcsr2_phys)
+{
+	int i;
+
+	bcsr1_phys = KSEG1ADDR(CPHYSADDR(bcsr1_phys));
+	bcsr2_phys = KSEG1ADDR(CPHYSADDR(bcsr2_phys));
+
+	bcsr_virt = (void __iomem *)bcsr1_phys;
+
+	for (i = 0; i < BCSR_CNT; i++) {
+		if (i >= BCSR_HEXLEDS)
+			bcsr_regs[i].raddr = (void __iomem *)bcsr2_phys +
+					(0x04 * (i - BCSR_HEXLEDS));
+		else
+			bcsr_regs[i].raddr = (void __iomem *)bcsr1_phys +
+					(0x04 * i);
+
+		spin_lock_init(&bcsr_regs[i].lock);
+	}
+}
+
+unsigned short bcsr_read(enum bcsr_id reg)
+{
+	unsigned short r;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bcsr_regs[reg].lock, flags);
+	r = __raw_readw(bcsr_regs[reg].raddr);
+	spin_unlock_irqrestore(&bcsr_regs[reg].lock, flags);
+	return r;
+}
+EXPORT_SYMBOL_GPL(bcsr_read);
+
+void bcsr_write(enum bcsr_id reg, unsigned short val)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&bcsr_regs[reg].lock, flags);
+	__raw_writew(val, bcsr_regs[reg].raddr);
+	wmb();
+	spin_unlock_irqrestore(&bcsr_regs[reg].lock, flags);
+}
+EXPORT_SYMBOL_GPL(bcsr_write);
+
+void bcsr_mod(enum bcsr_id reg, unsigned short clr, unsigned short set)
+{
+	unsigned short r;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bcsr_regs[reg].lock, flags);
+	r = __raw_readw(bcsr_regs[reg].raddr);
+	r &= ~clr;
+	r |= set;
+	__raw_writew(r, bcsr_regs[reg].raddr);
+	wmb();
+	spin_unlock_irqrestore(&bcsr_regs[reg].lock, flags);
+}
+EXPORT_SYMBOL_GPL(bcsr_mod);
+
+/*
+ * DB1200/PB1200 CPLD IRQ muxer
+ */
+static void bcsr_csc_handler(unsigned int irq, struct irq_desc *d)
+{
+	unsigned short bisr = __raw_readw(bcsr_virt + BCSR_REG_INTSTAT);
+
+	disable_irq_nosync(irq);
+	generic_handle_irq(bcsr_csc_base + __ffs(bisr));
+	enable_irq(irq);
+}
+
+static void bcsr_irq_mask(struct irq_data *d)
+{
+	unsigned short v = 1 << (d->irq - bcsr_csc_base);
+	__raw_writew(v, bcsr_virt + BCSR_REG_MASKCLR);
+	wmb();
+}
+
+static void bcsr_irq_maskack(struct irq_data *d)
+{
+	unsigned short v = 1 << (d->irq - bcsr_csc_base);
+	__raw_writew(v, bcsr_virt + BCSR_REG_MASKCLR);
+	__raw_writew(v, bcsr_virt + BCSR_REG_INTSTAT);	/* ack */
+	wmb();
+}
+
+static void bcsr_irq_unmask(struct irq_data *d)
+{
+	unsigned short v = 1 << (d->irq - bcsr_csc_base);
+	__raw_writew(v, bcsr_virt + BCSR_REG_MASKSET);
+	wmb();
+}
+
+static struct irq_chip bcsr_irq_type = {
+	.name		= "CPLD",
+	.irq_mask	= bcsr_irq_mask,
+	.irq_mask_ack	= bcsr_irq_maskack,
+	.irq_unmask	= bcsr_irq_unmask,
+};
+
+void __init bcsr_init_irq(int csc_start, int csc_end, int hook_irq)
+{
+	unsigned int irq;
+
+	/* mask & enable & ack all */
+	__raw_writew(0xffff, bcsr_virt + BCSR_REG_MASKCLR);
+	__raw_writew(0xffff, bcsr_virt + BCSR_REG_INTSET);
+	__raw_writew(0xffff, bcsr_virt + BCSR_REG_INTSTAT);
+	wmb();
+
+	bcsr_csc_base = csc_start;
+
+	for (irq = csc_start; irq <= csc_end; irq++)
+		irq_set_chip_and_handler_name(irq, &bcsr_irq_type,
+					      handle_level_irq, "level");
+
+	irq_set_chained_handler(hook_irq, bcsr_csc_handler);
+}
diff --git a/kernel/arch/mips/alchemy/devboards/db1000.c b/kernel/arch/mips/alchemy/devboards/db1000.c
new file mode 100644
index 000000000..001102e19
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/db1000.c
@@ -0,0 +1,616 @@
+/*
+ * DBAu1000/1500/1100 PBAu1100/1500 board support
+ *
+ * Copyright 2000, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/leds.h>
+#include <linux/mmc/host.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_gpio.h>
+#include <linux/spi/ads7846.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1000_dma.h>
+#include <asm/mach-au1x00/au1100_mmc.h>
+#include <asm/mach-db1x00/bcsr.h>
+#include <asm/reboot.h>
+#include <prom.h>
+#include "platform.h"
+
+#define F_SWAPPED (bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT)
+
+const char *get_system_type(void);
+
+int __init db1000_board_setup(void)
+{
+	/* initialize board register space */
+	bcsr_init(DB1000_BCSR_PHYS_ADDR,
+		  DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS);
+
+	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+	case BCSR_WHOAMI_DB1000:
+	case BCSR_WHOAMI_DB1500:
+	case BCSR_WHOAMI_DB1100:
+	case BCSR_WHOAMI_PB1500:
+	case BCSR_WHOAMI_PB1500R2:
+	case BCSR_WHOAMI_PB1100:
+		pr_info("AMD Alchemy %s Board\n", get_system_type());
+		return 0;
+	}
+	return -ENODEV;
+}
+
+static int db1500_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+	if ((slot < 12) || (slot > 13) || pin == 0)
+		return -1;
+	if (slot == 12)
+		return (pin == 1) ? AU1500_PCI_INTA : 0xff;
+	if (slot == 13) {
+		switch (pin) {
+		case 1: return AU1500_PCI_INTA;
+		case 2: return AU1500_PCI_INTB;
+		case 3: return AU1500_PCI_INTC;
+		case 4: return AU1500_PCI_INTD;
+		}
+	}
+	return -1;
+}
+
+static struct resource alchemy_pci_host_res[] = {
+	[0] = {
+		.start	= AU1500_PCI_PHYS_ADDR,
+		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct alchemy_pci_platdata db1500_pci_pd = {
+	.board_map_irq	= db1500_map_pci_irq,
+};
+
+static struct platform_device db1500_pci_host_dev = {
+	.dev.platform_data = &db1500_pci_pd,
+	.name		= "alchemy-pci",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
+	.resource	= alchemy_pci_host_res,
+};
+
+int __init db1500_pci_setup(void)
+{
+	return platform_device_register(&db1500_pci_host_dev);
+}
+
+static struct resource au1100_lcd_resources[] = {
+	[0] = {
+		.start	= AU1100_LCD_PHYS_ADDR,
+		.end	= AU1100_LCD_PHYS_ADDR + 0x800 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1100_LCD_INT,
+		.end	= AU1100_LCD_INT,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device au1100_lcd_device = {
+	.name		= "au1100-lcd",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= &au1100_lcd_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.num_resources	= ARRAY_SIZE(au1100_lcd_resources),
+	.resource	= au1100_lcd_resources,
+};
+
+static struct resource alchemy_ac97c_res[] = {
+	[0] = {
+		.start	= AU1000_AC97_PHYS_ADDR,
+		.end	= AU1000_AC97_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= DMA_ID_AC97C_TX,
+		.end	= DMA_ID_AC97C_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[2] = {
+		.start	= DMA_ID_AC97C_RX,
+		.end	= DMA_ID_AC97C_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device alchemy_ac97c_dev = {
+	.name		= "alchemy-ac97c",
+	.id		= -1,
+	.resource	= alchemy_ac97c_res,
+	.num_resources	= ARRAY_SIZE(alchemy_ac97c_res),
+};
+
+static struct platform_device alchemy_ac97c_dma_dev = {
+	.name		= "alchemy-pcm-dma",
+	.id		= 0,
+};
+
+static struct platform_device db1x00_codec_dev = {
+	.name		= "ac97-codec",
+	.id		= -1,
+};
+
+static struct platform_device db1x00_audio_dev = {
+	.name		= "db1000-audio",
+};
+
+/******************************************************************************/
+
+static irqreturn_t db1100_mmc_cd(int irq, void *ptr)
+{
+	void (*mmc_cd)(struct mmc_host *, unsigned long);
+	/* link against CONFIG_MMC=m */
+	mmc_cd = symbol_get(mmc_detect_change);
+	mmc_cd(ptr, msecs_to_jiffies(500));
+	symbol_put(mmc_detect_change);
+
+	return IRQ_HANDLED;
+}
+
+static int db1100_mmc_cd_setup(void *mmc_host, int en)
+{
+	int ret = 0, irq;
+
+	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
+		irq = AU1100_GPIO19_INT;
+	else
+		irq = AU1100_GPIO14_INT;	/* PB1100 SD0 CD# */
+
+	if (en) {
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
+		ret = request_irq(irq, db1100_mmc_cd, 0,
+				  "sd0_cd", mmc_host);
+	} else
+		free_irq(irq, mmc_host);
+	return ret;
+}
+
+static int db1100_mmc1_cd_setup(void *mmc_host, int en)
+{
+	int ret = 0, irq;
+
+	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
+		irq = AU1100_GPIO20_INT;
+	else
+		irq = AU1100_GPIO15_INT;	/* PB1100 SD1 CD# */
+
+	if (en) {
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
+		ret = request_irq(irq, db1100_mmc_cd, 0,
+				  "sd1_cd", mmc_host);
+	} else
+		free_irq(irq, mmc_host);
+	return ret;
+}
+
+static int db1100_mmc_card_readonly(void *mmc_host)
+{
+	/* testing suggests that this bit is inverted */
+	return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 0 : 1;
+}
+
+static int db1100_mmc_card_inserted(void *mmc_host)
+{
+	return !alchemy_gpio_get_value(19);
+}
+
+static void db1100_mmc_set_power(void *mmc_host, int state)
+{
+	int bit;
+
+	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
+		bit = BCSR_BOARD_SD0PWR;
+	else
+		bit = BCSR_BOARD_PB1100_SD0PWR;
+
+	if (state) {
+		bcsr_mod(BCSR_BOARD, 0, bit);
+		msleep(400);	/* stabilization time */
+	} else
+		bcsr_mod(BCSR_BOARD, bit, 0);
+}
+
+static void db1100_mmcled_set(struct led_classdev *led, enum led_brightness b)
+{
+	if (b != LED_OFF)
+		bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0);
+	else
+		bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0);
+}
+
+static struct led_classdev db1100_mmc_led = {
+	.brightness_set = db1100_mmcled_set,
+};
+
+static int db1100_mmc1_card_readonly(void *mmc_host)
+{
+	return (bcsr_read(BCSR_BOARD) & BCSR_BOARD_SD1WP) ? 1 : 0;
+}
+
+static int db1100_mmc1_card_inserted(void *mmc_host)
+{
+	return !alchemy_gpio_get_value(20);
+}
+
+static void db1100_mmc1_set_power(void *mmc_host, int state)
+{
+	int bit;
+
+	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
+		bit = BCSR_BOARD_SD1PWR;
+	else
+		bit = BCSR_BOARD_PB1100_SD1PWR;
+
+	if (state) {
+		bcsr_mod(BCSR_BOARD, 0, bit);
+		msleep(400);	/* stabilization time */
+	} else
+		bcsr_mod(BCSR_BOARD, bit, 0);
+}
+
+static void db1100_mmc1led_set(struct led_classdev *led, enum led_brightness b)
+{
+	if (b != LED_OFF)
+		bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0);
+	else
+		bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1);
+}
+
+static struct led_classdev db1100_mmc1_led = {
+	.brightness_set = db1100_mmc1led_set,
+};
+
+static struct au1xmmc_platform_data db1100_mmc_platdata[2] = {
+	[0] = {
+		.cd_setup	= db1100_mmc_cd_setup,
+		.set_power	= db1100_mmc_set_power,
+		.card_inserted	= db1100_mmc_card_inserted,
+		.card_readonly	= db1100_mmc_card_readonly,
+		.led		= &db1100_mmc_led,
+	},
+	[1] = {
+		.cd_setup	= db1100_mmc1_cd_setup,
+		.set_power	= db1100_mmc1_set_power,
+		.card_inserted	= db1100_mmc1_card_inserted,
+		.card_readonly	= db1100_mmc1_card_readonly,
+		.led		= &db1100_mmc1_led,
+	},
+};
+
+static struct resource au1100_mmc0_resources[] = {
+	[0] = {
+		.start	= AU1100_SD0_PHYS_ADDR,
+		.end	= AU1100_SD0_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1100_SD_INT,
+		.end	= AU1100_SD_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= DMA_ID_SD0_TX,
+		.end	= DMA_ID_SD0_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= DMA_ID_SD0_RX,
+		.end	= DMA_ID_SD0_RX,
+		.flags	= IORESOURCE_DMA,
+	}
+};
+
+static u64 au1xxx_mmc_dmamask =	 DMA_BIT_MASK(32);
+
+static struct platform_device db1100_mmc0_dev = {
+	.name		= "au1xxx-mmc",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= &au1xxx_mmc_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1100_mmc_platdata[0],
+	},
+	.num_resources	= ARRAY_SIZE(au1100_mmc0_resources),
+	.resource	= au1100_mmc0_resources,
+};
+
+static struct resource au1100_mmc1_res[] = {
+	[0] = {
+		.start	= AU1100_SD1_PHYS_ADDR,
+		.end	= AU1100_SD1_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1100_SD_INT,
+		.end	= AU1100_SD_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= DMA_ID_SD1_TX,
+		.end	= DMA_ID_SD1_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= DMA_ID_SD1_RX,
+		.end	= DMA_ID_SD1_RX,
+		.flags	= IORESOURCE_DMA,
+	}
+};
+
+static struct platform_device db1100_mmc1_dev = {
+	.name		= "au1xxx-mmc",
+	.id		= 1,
+	.dev = {
+		.dma_mask		= &au1xxx_mmc_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1100_mmc_platdata[1],
+	},
+	.num_resources	= ARRAY_SIZE(au1100_mmc1_res),
+	.resource	= au1100_mmc1_res,
+};
+
+/******************************************************************************/
+
+static void db1000_irda_set_phy_mode(int mode)
+{
+	unsigned short mask = BCSR_RESETS_IRDA_MODE_MASK | BCSR_RESETS_FIR_SEL;
+
+	switch (mode) {
+	case AU1000_IRDA_PHY_MODE_OFF:
+		bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_OFF);
+		break;
+	case AU1000_IRDA_PHY_MODE_SIR:
+		bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL);
+		break;
+	case AU1000_IRDA_PHY_MODE_FIR:
+		bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL |
+					    BCSR_RESETS_FIR_SEL);
+		break;
+	}
+}
+
+static struct au1k_irda_platform_data db1000_irda_platdata = {
+	.set_phy_mode	= db1000_irda_set_phy_mode,
+};
+
+static struct resource au1000_irda_res[] = {
+	[0] = {
+		.start	= AU1000_IRDA_PHYS_ADDR,
+		.end	= AU1000_IRDA_PHYS_ADDR + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1000_IRDA_TX_INT,
+		.end	= AU1000_IRDA_TX_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1000_IRDA_RX_INT,
+		.end	= AU1000_IRDA_RX_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device db1000_irda_dev = {
+	.name	= "au1000-irda",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &db1000_irda_platdata,
+	},
+	.resource	= au1000_irda_res,
+	.num_resources	= ARRAY_SIZE(au1000_irda_res),
+};
+
+/******************************************************************************/
+
+static struct ads7846_platform_data db1100_touch_pd = {
+	.model		= 7846,
+	.vref_mv	= 3300,
+	.gpio_pendown	= 21,
+};
+
+static struct spi_gpio_platform_data db1100_spictl_pd = {
+	.sck		= 209,
+	.mosi		= 208,
+	.miso		= 207,
+	.num_chipselect = 1,
+};
+
+static struct spi_board_info db1100_spi_info[] __initdata = {
+	[0] = {
+		.modalias	 = "ads7846",
+		.max_speed_hz	 = 3250000,
+		.bus_num	 = 0,
+		.chip_select	 = 0,
+		.mode		 = 0,
+		.irq		 = AU1100_GPIO21_INT,
+		.platform_data	 = &db1100_touch_pd,
+		.controller_data = (void *)210, /* for spi_gpio: CS# GPIO210 */
+	},
+};
+
+static struct platform_device db1100_spi_dev = {
+	.name		= "spi_gpio",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &db1100_spictl_pd,
+	},
+};
+
+
+static struct platform_device *db1x00_devs[] = {
+	&db1x00_codec_dev,
+	&alchemy_ac97c_dma_dev,
+	&alchemy_ac97c_dev,
+	&db1x00_audio_dev,
+};
+
+static struct platform_device *db1000_devs[] = {
+	&db1000_irda_dev,
+};
+
+static struct platform_device *db1100_devs[] = {
+	&au1100_lcd_device,
+	&db1100_mmc0_dev,
+	&db1100_mmc1_dev,
+	&db1000_irda_dev,
+};
+
+int __init db1000_dev_setup(void)
+{
+	int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+	int c0, c1, d0, d1, s0, s1, flashsize = 32,  twosocks = 1;
+	unsigned long pfc;
+	struct clk *c, *p;
+
+	if (board == BCSR_WHOAMI_DB1500) {
+		c0 = AU1500_GPIO2_INT;
+		c1 = AU1500_GPIO5_INT;
+		d0 = AU1500_GPIO0_INT;
+		d1 = AU1500_GPIO3_INT;
+		s0 = AU1500_GPIO1_INT;
+		s1 = AU1500_GPIO4_INT;
+	} else if (board == BCSR_WHOAMI_DB1100) {
+		c0 = AU1100_GPIO2_INT;
+		c1 = AU1100_GPIO5_INT;
+		d0 = AU1100_GPIO0_INT;
+		d1 = AU1100_GPIO3_INT;
+		s0 = AU1100_GPIO1_INT;
+		s1 = AU1100_GPIO4_INT;
+
+		gpio_request(19, "sd0_cd");
+		gpio_request(20, "sd1_cd");
+		gpio_direction_input(19);	/* sd0 cd# */
+		gpio_direction_input(20);	/* sd1 cd# */
+
+		/* spi_gpio on SSI0 pins */
+		pfc = alchemy_rdsys(AU1000_SYS_PINFUNC);
+		pfc |= (1 << 0);	/* SSI0 pins as GPIOs */
+		alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
+
+		spi_register_board_info(db1100_spi_info,
+					ARRAY_SIZE(db1100_spi_info));
+
+		/* link LCD clock to AUXPLL */
+		p = clk_get(NULL, "auxpll_clk");
+		c = clk_get(NULL, "lcd_intclk");
+		if (!IS_ERR(c) && !IS_ERR(p)) {
+			clk_set_parent(c, p);
+			clk_set_rate(c, clk_get_rate(p));
+		}
+		if (!IS_ERR(c))
+			clk_put(c);
+		if (!IS_ERR(p))
+			clk_put(p);
+
+		platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
+		platform_device_register(&db1100_spi_dev);
+	} else if (board == BCSR_WHOAMI_DB1000) {
+		c0 = AU1000_GPIO2_INT;
+		c1 = AU1000_GPIO5_INT;
+		d0 = AU1000_GPIO0_INT;
+		d1 = AU1000_GPIO3_INT;
+		s0 = AU1000_GPIO1_INT;
+		s1 = AU1000_GPIO4_INT;
+		platform_add_devices(db1000_devs, ARRAY_SIZE(db1000_devs));
+	} else if ((board == BCSR_WHOAMI_PB1500) ||
+		   (board == BCSR_WHOAMI_PB1500R2)) {
+		c0 = AU1500_GPIO203_INT;
+		d0 = AU1500_GPIO201_INT;
+		s0 = AU1500_GPIO202_INT;
+		twosocks = 0;
+		flashsize = 64;
+		/* RTC and daughtercard irqs */
+		irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
+		/* EPSON S1D13806 0x1b000000
+		 * SRAM 1MB/2MB	  0x1a000000
+		 * DS1693 RTC	  0x0c000000
+		 */
+	} else if (board == BCSR_WHOAMI_PB1100) {
+		c0 = AU1100_GPIO11_INT;
+		d0 = AU1100_GPIO9_INT;
+		s0 = AU1100_GPIO10_INT;
+		twosocks = 0;
+		flashsize = 64;
+		/* pendown, rtc, daughtercard irqs */
+		irq_set_irq_type(AU1100_GPIO8_INT, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(AU1100_GPIO12_INT, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(AU1100_GPIO13_INT, IRQ_TYPE_LEVEL_LOW);
+		/* EPSON S1D13806 0x1b000000
+		 * SRAM 1MB/2MB	  0x1a000000
+		 * DiskOnChip	  0x0d000000
+		 * DS1693 RTC	  0x0c000000
+		 */
+		platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
+	} else
+		return 0; /* unknown board, no further dev setup to do */
+
+	irq_set_irq_type(d0, IRQ_TYPE_EDGE_BOTH);
+	irq_set_irq_type(c0, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(s0, IRQ_TYPE_LEVEL_LOW);
+
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
+		c0, d0, /*s0*/0, 0, 0);
+
+	if (twosocks) {
+		irq_set_irq_type(d1, IRQ_TYPE_EDGE_BOTH);
+		irq_set_irq_type(c1, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(s1, IRQ_TYPE_LEVEL_LOW);
+
+		db1x_register_pcmcia_socket(
+			AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
+			AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
+			AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004000000,
+			AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004400000 - 1,
+			AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004000000,
+			AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004010000 - 1,
+			c1, d1, /*s1*/0, 0, 1);
+	}
+
+	platform_add_devices(db1x00_devs, ARRAY_SIZE(db1x00_devs));
+	db1x_register_norflash(flashsize << 20, 4 /* 32bit */, F_SWAPPED);
+	return 0;
+}
diff --git a/kernel/arch/mips/alchemy/devboards/db1200.c b/kernel/arch/mips/alchemy/devboards/db1200.c
new file mode 100644
index 000000000..8c13675a1
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/db1200.c
@@ -0,0 +1,961 @@
+/*
+ * DBAu1200/PBAu1200 board platform device registration
+ *
+ * Copyright (C) 2008-2011 Manuel Lauss
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/leds.h>
+#include <linux/mmc/host.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <linux/smc91x.h>
+#include <linux/ata_platform.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1100_mmc.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+#include <asm/mach-au1x00/au1xxx_psc.h>
+#include <asm/mach-au1x00/au1200fb.h>
+#include <asm/mach-au1x00/au1550_spi.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+#include "platform.h"
+
+#define BCSR_INT_IDE		0x0001
+#define BCSR_INT_ETH		0x0002
+#define BCSR_INT_PC0		0x0004
+#define BCSR_INT_PC0STSCHG	0x0008
+#define BCSR_INT_PC1		0x0010
+#define BCSR_INT_PC1STSCHG	0x0020
+#define BCSR_INT_DC		0x0040
+#define BCSR_INT_FLASHBUSY	0x0080
+#define BCSR_INT_PC0INSERT	0x0100
+#define BCSR_INT_PC0EJECT	0x0200
+#define BCSR_INT_PC1INSERT	0x0400
+#define BCSR_INT_PC1EJECT	0x0800
+#define BCSR_INT_SD0INSERT	0x1000
+#define BCSR_INT_SD0EJECT	0x2000
+#define BCSR_INT_SD1INSERT	0x4000
+#define BCSR_INT_SD1EJECT	0x8000
+
+#define DB1200_IDE_PHYS_ADDR	0x18800000
+#define DB1200_IDE_REG_SHIFT	5
+#define DB1200_IDE_PHYS_LEN	(16 << DB1200_IDE_REG_SHIFT)
+#define DB1200_ETH_PHYS_ADDR	0x19000300
+#define DB1200_NAND_PHYS_ADDR	0x20000000
+
+#define PB1200_IDE_PHYS_ADDR	0x0C800000
+#define PB1200_ETH_PHYS_ADDR	0x0D000300
+#define PB1200_NAND_PHYS_ADDR	0x1C000000
+
+#define DB1200_INT_BEGIN	(AU1000_MAX_INTR + 1)
+#define DB1200_IDE_INT		(DB1200_INT_BEGIN + 0)
+#define DB1200_ETH_INT		(DB1200_INT_BEGIN + 1)
+#define DB1200_PC0_INT		(DB1200_INT_BEGIN + 2)
+#define DB1200_PC0_STSCHG_INT	(DB1200_INT_BEGIN + 3)
+#define DB1200_PC1_INT		(DB1200_INT_BEGIN + 4)
+#define DB1200_PC1_STSCHG_INT	(DB1200_INT_BEGIN + 5)
+#define DB1200_DC_INT		(DB1200_INT_BEGIN + 6)
+#define DB1200_FLASHBUSY_INT	(DB1200_INT_BEGIN + 7)
+#define DB1200_PC0_INSERT_INT	(DB1200_INT_BEGIN + 8)
+#define DB1200_PC0_EJECT_INT	(DB1200_INT_BEGIN + 9)
+#define DB1200_PC1_INSERT_INT	(DB1200_INT_BEGIN + 10)
+#define DB1200_PC1_EJECT_INT	(DB1200_INT_BEGIN + 11)
+#define DB1200_SD0_INSERT_INT	(DB1200_INT_BEGIN + 12)
+#define DB1200_SD0_EJECT_INT	(DB1200_INT_BEGIN + 13)
+#define PB1200_SD1_INSERT_INT	(DB1200_INT_BEGIN + 14)
+#define PB1200_SD1_EJECT_INT	(DB1200_INT_BEGIN + 15)
+#define DB1200_INT_END		(DB1200_INT_BEGIN + 15)
+
+const char *get_system_type(void);
+
+static int __init db1200_detect_board(void)
+{
+	int bid;
+
+	/* try the DB1200 first */
+	bcsr_init(DB1200_BCSR_PHYS_ADDR,
+		  DB1200_BCSR_PHYS_ADDR + DB1200_BCSR_HEXLED_OFS);
+	if (BCSR_WHOAMI_DB1200 == BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+		unsigned short t = bcsr_read(BCSR_HEXLEDS);
+		bcsr_write(BCSR_HEXLEDS, ~t);
+		if (bcsr_read(BCSR_HEXLEDS) != t) {
+			bcsr_write(BCSR_HEXLEDS, t);
+			return 0;
+		}
+	}
+
+	/* okay, try the PB1200 then */
+	bcsr_init(PB1200_BCSR_PHYS_ADDR,
+		  PB1200_BCSR_PHYS_ADDR + PB1200_BCSR_HEXLED_OFS);
+	bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+	if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
+	    (bid == BCSR_WHOAMI_PB1200_DDR2)) {
+		unsigned short t = bcsr_read(BCSR_HEXLEDS);
+		bcsr_write(BCSR_HEXLEDS, ~t);
+		if (bcsr_read(BCSR_HEXLEDS) != t) {
+			bcsr_write(BCSR_HEXLEDS, t);
+			return 0;
+		}
+	}
+
+	return 1;	/* it's neither */
+}
+
+int __init db1200_board_setup(void)
+{
+	unsigned short whoami;
+
+	if (db1200_detect_board())
+		return -ENODEV;
+
+	whoami = bcsr_read(BCSR_WHOAMI);
+	switch (BCSR_WHOAMI_BOARD(whoami)) {
+	case BCSR_WHOAMI_PB1200_DDR1:
+	case BCSR_WHOAMI_PB1200_DDR2:
+	case BCSR_WHOAMI_DB1200:
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	printk(KERN_INFO "Alchemy/AMD/RMI %s Board, CPLD Rev %d"
+		"  Board-ID %d	Daughtercard ID %d\n", get_system_type(),
+		(whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf);
+
+	return 0;
+}
+
+/******************************************************************************/
+
+static struct mtd_partition db1200_spiflash_parts[] = {
+	{
+		.name	= "spi_flash",
+		.offset = 0,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct flash_platform_data db1200_spiflash_data = {
+	.name		= "s25fl001",
+	.parts		= db1200_spiflash_parts,
+	.nr_parts	= ARRAY_SIZE(db1200_spiflash_parts),
+	.type		= "m25p10",
+};
+
+static struct spi_board_info db1200_spi_devs[] __initdata = {
+	{
+		/* TI TMP121AIDBVR temp sensor */
+		.modalias	= "tmp121",
+		.max_speed_hz	= 2000000,
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.mode		= 0,
+	},
+	{
+		/* Spansion S25FL001D0FMA SPI flash */
+		.modalias	= "m25p80",
+		.max_speed_hz	= 50000000,
+		.bus_num	= 0,
+		.chip_select	= 1,
+		.mode		= 0,
+		.platform_data	= &db1200_spiflash_data,
+	},
+};
+
+static struct i2c_board_info db1200_i2c_devs[] __initdata = {
+	{ I2C_BOARD_INFO("24c04", 0x52),  }, /* AT24C04-10 I2C eeprom */
+	{ I2C_BOARD_INFO("ne1619", 0x2d), }, /* adm1025-compat hwmon */
+	{ I2C_BOARD_INFO("wm8731", 0x1b), }, /* I2S audio codec WM8731 */
+};
+
+/**********************************************************************/
+
+static void au1200_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+				 unsigned int ctrl)
+{
+	struct nand_chip *this = mtd->priv;
+	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
+
+	ioaddr &= 0xffffff00;
+
+	if (ctrl & NAND_CLE) {
+		ioaddr += MEM_STNAND_CMD;
+	} else if (ctrl & NAND_ALE) {
+		ioaddr += MEM_STNAND_ADDR;
+	} else {
+		/* assume we want to r/w real data  by default */
+		ioaddr += MEM_STNAND_DATA;
+	}
+	this->IO_ADDR_R = this->IO_ADDR_W = (void __iomem *)ioaddr;
+	if (cmd != NAND_CMD_NONE) {
+		__raw_writeb(cmd, this->IO_ADDR_W);
+		wmb();
+	}
+}
+
+static int au1200_nand_device_ready(struct mtd_info *mtd)
+{
+	return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1;
+}
+
+static struct mtd_partition db1200_nand_parts[] = {
+	{
+		.name	= "NAND FS 0",
+		.offset = 0,
+		.size	= 8 * 1024 * 1024,
+	},
+	{
+		.name	= "NAND FS 1",
+		.offset = MTDPART_OFS_APPEND,
+		.size	= MTDPART_SIZ_FULL
+	},
+};
+
+struct platform_nand_data db1200_nand_platdata = {
+	.chip = {
+		.nr_chips	= 1,
+		.chip_offset	= 0,
+		.nr_partitions	= ARRAY_SIZE(db1200_nand_parts),
+		.partitions	= db1200_nand_parts,
+		.chip_delay	= 20,
+	},
+	.ctrl = {
+		.dev_ready	= au1200_nand_device_ready,
+		.cmd_ctrl	= au1200_nand_cmd_ctrl,
+	},
+};
+
+static struct resource db1200_nand_res[] = {
+	[0] = {
+		.start	= DB1200_NAND_PHYS_ADDR,
+		.end	= DB1200_NAND_PHYS_ADDR + 0xff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device db1200_nand_dev = {
+	.name		= "gen_nand",
+	.num_resources	= ARRAY_SIZE(db1200_nand_res),
+	.resource	= db1200_nand_res,
+	.id		= -1,
+	.dev		= {
+		.platform_data = &db1200_nand_platdata,
+	}
+};
+
+/**********************************************************************/
+
+static struct smc91x_platdata db1200_eth_data = {
+	.flags	= SMC91X_NOWAIT | SMC91X_USE_16BIT,
+	.leda	= RPC_LED_100_10,
+	.ledb	= RPC_LED_TX_RX,
+};
+
+static struct resource db1200_eth_res[] = {
+	[0] = {
+		.start	= DB1200_ETH_PHYS_ADDR,
+		.end	= DB1200_ETH_PHYS_ADDR + 0xf,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= DB1200_ETH_INT,
+		.end	= DB1200_ETH_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device db1200_eth_dev = {
+	.dev	= {
+		.platform_data	= &db1200_eth_data,
+	},
+	.name		= "smc91x",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(db1200_eth_res),
+	.resource	= db1200_eth_res,
+};
+
+/**********************************************************************/
+
+static struct pata_platform_info db1200_ide_info = {
+	.ioport_shift	= DB1200_IDE_REG_SHIFT,
+};
+
+#define IDE_ALT_START	(14 << DB1200_IDE_REG_SHIFT)
+static struct resource db1200_ide_res[] = {
+	[0] = {
+		.start	= DB1200_IDE_PHYS_ADDR,
+		.end	= DB1200_IDE_PHYS_ADDR + IDE_ALT_START - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= DB1200_IDE_PHYS_ADDR + IDE_ALT_START,
+		.end	= DB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= DB1200_IDE_INT,
+		.end	= DB1200_IDE_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 au1200_ide_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device db1200_ide_dev = {
+	.name		= "pata_platform",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= &au1200_ide_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1200_ide_info,
+	},
+	.num_resources	= ARRAY_SIZE(db1200_ide_res),
+	.resource	= db1200_ide_res,
+};
+
+/**********************************************************************/
+
+/* SD carddetects:  they're supposed to be edge-triggered, but ack
+ * doesn't seem to work (CPLD Rev 2).  Instead, the screaming one
+ * is disabled and its counterpart enabled.  The 500ms timeout is
+ * because the carddetect isn't debounced in hardware.
+ */
+static irqreturn_t db1200_mmc_cd(int irq, void *ptr)
+{
+	void(*mmc_cd)(struct mmc_host *, unsigned long);
+
+	if (irq == DB1200_SD0_INSERT_INT) {
+		disable_irq_nosync(DB1200_SD0_INSERT_INT);
+		enable_irq(DB1200_SD0_EJECT_INT);
+	} else {
+		disable_irq_nosync(DB1200_SD0_EJECT_INT);
+		enable_irq(DB1200_SD0_INSERT_INT);
+	}
+
+	/* link against CONFIG_MMC=m */
+	mmc_cd = symbol_get(mmc_detect_change);
+	if (mmc_cd) {
+		mmc_cd(ptr, msecs_to_jiffies(500));
+		symbol_put(mmc_detect_change);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int db1200_mmc_cd_setup(void *mmc_host, int en)
+{
+	int ret;
+
+	if (en) {
+		ret = request_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd,
+				  0, "sd_insert", mmc_host);
+		if (ret)
+			goto out;
+
+		ret = request_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd,
+				  0, "sd_eject", mmc_host);
+		if (ret) {
+			free_irq(DB1200_SD0_INSERT_INT, mmc_host);
+			goto out;
+		}
+
+		if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT)
+			enable_irq(DB1200_SD0_EJECT_INT);
+		else
+			enable_irq(DB1200_SD0_INSERT_INT);
+
+	} else {
+		free_irq(DB1200_SD0_INSERT_INT, mmc_host);
+		free_irq(DB1200_SD0_EJECT_INT, mmc_host);
+	}
+	ret = 0;
+out:
+	return ret;
+}
+
+static void db1200_mmc_set_power(void *mmc_host, int state)
+{
+	if (state) {
+		bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD0PWR);
+		msleep(400);	/* stabilization time */
+	} else
+		bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD0PWR, 0);
+}
+
+static int db1200_mmc_card_readonly(void *mmc_host)
+{
+	return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP) ? 1 : 0;
+}
+
+static int db1200_mmc_card_inserted(void *mmc_host)
+{
+	return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD0INSERT) ? 1 : 0;
+}
+
+static void db1200_mmcled_set(struct led_classdev *led,
+			      enum led_brightness brightness)
+{
+	if (brightness != LED_OFF)
+		bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0);
+	else
+		bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0);
+}
+
+static struct led_classdev db1200_mmc_led = {
+	.brightness_set = db1200_mmcled_set,
+};
+
+/* -- */
+
+static irqreturn_t pb1200_mmc1_cd(int irq, void *ptr)
+{
+	void(*mmc_cd)(struct mmc_host *, unsigned long);
+
+	if (irq == PB1200_SD1_INSERT_INT) {
+		disable_irq_nosync(PB1200_SD1_INSERT_INT);
+		enable_irq(PB1200_SD1_EJECT_INT);
+	} else {
+		disable_irq_nosync(PB1200_SD1_EJECT_INT);
+		enable_irq(PB1200_SD1_INSERT_INT);
+	}
+
+	/* link against CONFIG_MMC=m */
+	mmc_cd = symbol_get(mmc_detect_change);
+	if (mmc_cd) {
+		mmc_cd(ptr, msecs_to_jiffies(500));
+		symbol_put(mmc_detect_change);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int pb1200_mmc1_cd_setup(void *mmc_host, int en)
+{
+	int ret;
+
+	if (en) {
+		ret = request_irq(PB1200_SD1_INSERT_INT, pb1200_mmc1_cd, 0,
+				  "sd1_insert", mmc_host);
+		if (ret)
+			goto out;
+
+		ret = request_irq(PB1200_SD1_EJECT_INT, pb1200_mmc1_cd, 0,
+				  "sd1_eject", mmc_host);
+		if (ret) {
+			free_irq(PB1200_SD1_INSERT_INT, mmc_host);
+			goto out;
+		}
+
+		if (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT)
+			enable_irq(PB1200_SD1_EJECT_INT);
+		else
+			enable_irq(PB1200_SD1_INSERT_INT);
+
+	} else {
+		free_irq(PB1200_SD1_INSERT_INT, mmc_host);
+		free_irq(PB1200_SD1_EJECT_INT, mmc_host);
+	}
+	ret = 0;
+out:
+	return ret;
+}
+
+static void pb1200_mmc1led_set(struct led_classdev *led,
+			enum led_brightness brightness)
+{
+	if (brightness != LED_OFF)
+			bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0);
+	else
+			bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1);
+}
+
+static struct led_classdev pb1200_mmc1_led = {
+	.brightness_set = pb1200_mmc1led_set,
+};
+
+static void pb1200_mmc1_set_power(void *mmc_host, int state)
+{
+	if (state) {
+		bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD1PWR);
+		msleep(400);	/* stabilization time */
+	} else
+		bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD1PWR, 0);
+}
+
+static int pb1200_mmc1_card_readonly(void *mmc_host)
+{
+	return (bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD1WP) ? 1 : 0;
+}
+
+static int pb1200_mmc1_card_inserted(void *mmc_host)
+{
+	return (bcsr_read(BCSR_SIGSTAT) & BCSR_INT_SD1INSERT) ? 1 : 0;
+}
+
+
+static struct au1xmmc_platform_data db1200_mmc_platdata[2] = {
+	[0] = {
+		.cd_setup	= db1200_mmc_cd_setup,
+		.set_power	= db1200_mmc_set_power,
+		.card_inserted	= db1200_mmc_card_inserted,
+		.card_readonly	= db1200_mmc_card_readonly,
+		.led		= &db1200_mmc_led,
+	},
+	[1] = {
+		.cd_setup	= pb1200_mmc1_cd_setup,
+		.set_power	= pb1200_mmc1_set_power,
+		.card_inserted	= pb1200_mmc1_card_inserted,
+		.card_readonly	= pb1200_mmc1_card_readonly,
+		.led		= &pb1200_mmc1_led,
+	},
+};
+
+static struct resource au1200_mmc0_resources[] = {
+	[0] = {
+		.start	= AU1100_SD0_PHYS_ADDR,
+		.end	= AU1100_SD0_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1200_SD_INT,
+		.end	= AU1200_SD_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1200_DSCR_CMD0_SDMS_TX0,
+		.end	= AU1200_DSCR_CMD0_SDMS_TX0,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1200_DSCR_CMD0_SDMS_RX0,
+		.end	= AU1200_DSCR_CMD0_SDMS_RX0,
+		.flags	= IORESOURCE_DMA,
+	}
+};
+
+static u64 au1xxx_mmc_dmamask =	 DMA_BIT_MASK(32);
+
+static struct platform_device db1200_mmc0_dev = {
+	.name		= "au1xxx-mmc",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= &au1xxx_mmc_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1200_mmc_platdata[0],
+	},
+	.num_resources	= ARRAY_SIZE(au1200_mmc0_resources),
+	.resource	= au1200_mmc0_resources,
+};
+
+static struct resource au1200_mmc1_res[] = {
+	[0] = {
+		.start	= AU1100_SD1_PHYS_ADDR,
+		.end	= AU1100_SD1_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1200_SD_INT,
+		.end	= AU1200_SD_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1200_DSCR_CMD0_SDMS_TX1,
+		.end	= AU1200_DSCR_CMD0_SDMS_TX1,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1200_DSCR_CMD0_SDMS_RX1,
+		.end	= AU1200_DSCR_CMD0_SDMS_RX1,
+		.flags	= IORESOURCE_DMA,
+	}
+};
+
+static struct platform_device pb1200_mmc1_dev = {
+	.name		= "au1xxx-mmc",
+	.id		= 1,
+	.dev = {
+		.dma_mask		= &au1xxx_mmc_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1200_mmc_platdata[1],
+	},
+	.num_resources	= ARRAY_SIZE(au1200_mmc1_res),
+	.resource	= au1200_mmc1_res,
+};
+
+/**********************************************************************/
+
+static int db1200fb_panel_index(void)
+{
+	return (bcsr_read(BCSR_SWITCHES) >> 8) & 0x0f;
+}
+
+static int db1200fb_panel_init(void)
+{
+	/* Apply power */
+	bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD |
+				BCSR_BOARD_LCDBL);
+	return 0;
+}
+
+static int db1200fb_panel_shutdown(void)
+{
+	/* Remove power */
+	bcsr_mod(BCSR_BOARD, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD |
+			     BCSR_BOARD_LCDBL, 0);
+	return 0;
+}
+
+static struct au1200fb_platdata db1200fb_pd = {
+	.panel_index	= db1200fb_panel_index,
+	.panel_init	= db1200fb_panel_init,
+	.panel_shutdown = db1200fb_panel_shutdown,
+};
+
+static struct resource au1200_lcd_res[] = {
+	[0] = {
+		.start	= AU1200_LCD_PHYS_ADDR,
+		.end	= AU1200_LCD_PHYS_ADDR + 0x800 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1200_LCD_INT,
+		.end	= AU1200_LCD_INT,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static u64 au1200_lcd_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device au1200_lcd_dev = {
+	.name		= "au1200-lcd",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= &au1200_lcd_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1200fb_pd,
+	},
+	.num_resources	= ARRAY_SIZE(au1200_lcd_res),
+	.resource	= au1200_lcd_res,
+};
+
+/**********************************************************************/
+
+static struct resource au1200_psc0_res[] = {
+	[0] = {
+		.start	= AU1550_PSC0_PHYS_ADDR,
+		.end	= AU1550_PSC0_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1200_PSC0_INT,
+		.end	= AU1200_PSC0_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1200_DSCR_CMD0_PSC0_TX,
+		.end	= AU1200_DSCR_CMD0_PSC0_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1200_DSCR_CMD0_PSC0_RX,
+		.end	= AU1200_DSCR_CMD0_PSC0_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1200_i2c_dev = {
+	.name		= "au1xpsc_smbus",
+	.id		= 0,	/* bus number */
+	.num_resources	= ARRAY_SIZE(au1200_psc0_res),
+	.resource	= au1200_psc0_res,
+};
+
+static void db1200_spi_cs_en(struct au1550_spi_info *spi, int cs, int pol)
+{
+	if (cs)
+		bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_SPISEL);
+	else
+		bcsr_mod(BCSR_RESETS, BCSR_RESETS_SPISEL, 0);
+}
+
+static struct au1550_spi_info db1200_spi_platdata = {
+	.mainclk_hz	= 50000000,	/* PSC0 clock */
+	.num_chipselect = 2,
+	.activate_cs	= db1200_spi_cs_en,
+};
+
+static u64 spi_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device db1200_spi_dev = {
+	.dev	= {
+		.dma_mask		= &spi_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1200_spi_platdata,
+	},
+	.name		= "au1550-spi",
+	.id		= 0,	/* bus number */
+	.num_resources	= ARRAY_SIZE(au1200_psc0_res),
+	.resource	= au1200_psc0_res,
+};
+
+static struct resource au1200_psc1_res[] = {
+	[0] = {
+		.start	= AU1550_PSC1_PHYS_ADDR,
+		.end	= AU1550_PSC1_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1200_PSC1_INT,
+		.end	= AU1200_PSC1_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1200_DSCR_CMD0_PSC1_TX,
+		.end	= AU1200_DSCR_CMD0_PSC1_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1200_DSCR_CMD0_PSC1_RX,
+		.end	= AU1200_DSCR_CMD0_PSC1_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+/* AC97 or I2S device */
+static struct platform_device db1200_audio_dev = {
+	/* name assigned later based on switch setting */
+	.id		= 1,	/* PSC ID */
+	.num_resources	= ARRAY_SIZE(au1200_psc1_res),
+	.resource	= au1200_psc1_res,
+};
+
+/* DB1200 ASoC card device */
+static struct platform_device db1200_sound_dev = {
+	/* name assigned later based on switch setting */
+	.id		= 1,	/* PSC ID */
+};
+
+static struct platform_device db1200_stac_dev = {
+	.name		= "ac97-codec",
+	.id		= 1,	/* on PSC1 */
+};
+
+static struct platform_device db1200_audiodma_dev = {
+	.name		= "au1xpsc-pcm",
+	.id		= 1,	/* PSC ID */
+};
+
+static struct platform_device *db1200_devs[] __initdata = {
+	NULL,		/* PSC0, selected by S6.8 */
+	&db1200_ide_dev,
+	&db1200_mmc0_dev,
+	&au1200_lcd_dev,
+	&db1200_eth_dev,
+	&db1200_nand_dev,
+	&db1200_audiodma_dev,
+	&db1200_audio_dev,
+	&db1200_stac_dev,
+	&db1200_sound_dev,
+};
+
+static struct platform_device *pb1200_devs[] __initdata = {
+	&pb1200_mmc1_dev,
+};
+
+/* Some peripheral base addresses differ on the PB1200 */
+static int __init pb1200_res_fixup(void)
+{
+	/* CPLD Revs earlier than 4 cause problems */
+	if (BCSR_WHOAMI_CPLD(bcsr_read(BCSR_WHOAMI)) <= 3) {
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "PB1200 must be at CPLD rev 4. Please have\n");
+		printk(KERN_ERR "the board updated to latest revisions.\n");
+		printk(KERN_ERR "This software will not work reliably\n");
+		printk(KERN_ERR "on anything older than CPLD rev 4.!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		printk(KERN_ERR "WARNING!!!\n");
+		return 1;
+	}
+
+	db1200_nand_res[0].start = PB1200_NAND_PHYS_ADDR;
+	db1200_nand_res[0].end	 = PB1200_NAND_PHYS_ADDR + 0xff;
+	db1200_ide_res[0].start = PB1200_IDE_PHYS_ADDR;
+	db1200_ide_res[0].end	= PB1200_IDE_PHYS_ADDR + DB1200_IDE_PHYS_LEN - 1;
+	db1200_eth_res[0].start = PB1200_ETH_PHYS_ADDR;
+	db1200_eth_res[0].end	= PB1200_ETH_PHYS_ADDR + 0xff;
+	return 0;
+}
+
+int __init db1200_dev_setup(void)
+{
+	unsigned long pfc;
+	unsigned short sw;
+	int swapped, bid;
+	struct clk *c;
+
+	bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+	if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
+	    (bid == BCSR_WHOAMI_PB1200_DDR2)) {
+		if (pb1200_res_fixup())
+			return -ENODEV;
+	}
+
+	/* GPIO7 is low-level triggered CPLD cascade */
+	irq_set_irq_type(AU1200_GPIO7_INT, IRQ_TYPE_LEVEL_LOW);
+	bcsr_init_irq(DB1200_INT_BEGIN, DB1200_INT_END, AU1200_GPIO7_INT);
+
+	/* SMBus/SPI on PSC0, Audio on PSC1 */
+	pfc = alchemy_rdsys(AU1000_SYS_PINFUNC);
+	pfc &= ~(SYS_PINFUNC_P0A | SYS_PINFUNC_P0B);
+	pfc &= ~(SYS_PINFUNC_P1A | SYS_PINFUNC_P1B | SYS_PINFUNC_FS3);
+	pfc |= SYS_PINFUNC_P1C; /* SPI is configured later */
+	alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
+
+	/* get 50MHz for I2C driver on PSC0 */
+	c = clk_get(NULL, "psc0_intclk");
+	if (!IS_ERR(c)) {
+		pfc = clk_round_rate(c, 50000000);
+		if ((pfc < 1) || (abs(50000000 - pfc) > 2500000))
+			pr_warn("DB1200: cant get I2C close to 50MHz\n");
+		else
+			clk_set_rate(c, pfc);
+		clk_prepare_enable(c);
+		clk_put(c);
+	}
+
+	/* insert/eject pairs: one of both is always screaming.	 To avoid
+	 * issues they must not be automatically enabled when initially
+	 * requested.
+	 */
+	irq_set_status_flags(DB1200_SD0_INSERT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_SD0_EJECT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_PC0_INSERT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_PC0_EJECT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_PC1_INSERT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1200_PC1_EJECT_INT, IRQ_NOAUTOEN);
+
+	i2c_register_board_info(0, db1200_i2c_devs,
+				ARRAY_SIZE(db1200_i2c_devs));
+	spi_register_board_info(db1200_spi_devs,
+				ARRAY_SIZE(db1200_i2c_devs));
+
+	/* SWITCHES:	S6.8 I2C/SPI selector  (OFF=I2C	 ON=SPI)
+	 *		S6.7 AC97/I2S selector (OFF=AC97 ON=I2S)
+	 *		or S12 on the PB1200.
+	 */
+
+	/* NOTE: GPIO215 controls OTG VBUS supply.  In SPI mode however
+	 * this pin is claimed by PSC0 (unused though, but pinmux doesn't
+	 * allow to free it without crippling the SPI interface).
+	 * As a result, in SPI mode, OTG simply won't work (PSC0 uses
+	 * it as an input pin which is pulled high on the boards).
+	 */
+	pfc = alchemy_rdsys(AU1000_SYS_PINFUNC) & ~SYS_PINFUNC_P0A;
+
+	/* switch off OTG VBUS supply */
+	gpio_request(215, "otg-vbus");
+	gpio_direction_output(215, 1);
+
+	printk(KERN_INFO "%s device configuration:\n", get_system_type());
+
+	sw = bcsr_read(BCSR_SWITCHES);
+	if (sw & BCSR_SWITCHES_DIP_8) {
+		db1200_devs[0] = &db1200_i2c_dev;
+		bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC0MUX, 0);
+
+		pfc |= (2 << 17);	/* GPIO2 block owns GPIO215 */
+
+		printk(KERN_INFO " S6.8 OFF: PSC0 mode I2C\n");
+		printk(KERN_INFO "   OTG port VBUS supply available!\n");
+	} else {
+		db1200_devs[0] = &db1200_spi_dev;
+		bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC0MUX);
+
+		pfc |= (1 << 17);	/* PSC0 owns GPIO215 */
+
+		printk(KERN_INFO " S6.8 ON : PSC0 mode SPI\n");
+		printk(KERN_INFO "   OTG port VBUS supply disabled\n");
+	}
+	alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
+
+	/* Audio: DIP7 selects I2S(0)/AC97(1), but need I2C for I2S!
+	 * so: DIP7=1 || DIP8=0 => AC97, DIP7=0 && DIP8=1 => I2S
+	 */
+	sw &= BCSR_SWITCHES_DIP_8 | BCSR_SWITCHES_DIP_7;
+	if (sw == BCSR_SWITCHES_DIP_8) {
+		bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC1MUX);
+		db1200_audio_dev.name = "au1xpsc_i2s";
+		db1200_sound_dev.name = "db1200-i2s";
+		printk(KERN_INFO " S6.7 ON : PSC1 mode I2S\n");
+	} else {
+		bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC1MUX, 0);
+		db1200_audio_dev.name = "au1xpsc_ac97";
+		db1200_sound_dev.name = "db1200-ac97";
+		printk(KERN_INFO " S6.7 OFF: PSC1 mode AC97\n");
+	}
+
+	/* Audio PSC clock is supplied externally. (FIXME: platdata!!) */
+	__raw_writel(PSC_SEL_CLK_SERCLK,
+	    (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET);
+	wmb();
+
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
+		DB1200_PC0_INT, DB1200_PC0_INSERT_INT,
+		/*DB1200_PC0_STSCHG_INT*/0, DB1200_PC0_EJECT_INT, 0);
+
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004000000,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004000000,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004010000 - 1,
+		DB1200_PC1_INT, DB1200_PC1_INSERT_INT,
+		/*DB1200_PC1_STSCHG_INT*/0, DB1200_PC1_EJECT_INT, 1);
+
+	swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1200_SWAPBOOT;
+	db1x_register_norflash(64 << 20, 2, swapped);
+
+	platform_add_devices(db1200_devs, ARRAY_SIZE(db1200_devs));
+
+	/* PB1200 is a DB1200 with a 2nd MMC and Camera connector */
+	if ((bid == BCSR_WHOAMI_PB1200_DDR1) ||
+	    (bid == BCSR_WHOAMI_PB1200_DDR2))
+		platform_add_devices(pb1200_devs, ARRAY_SIZE(pb1200_devs));
+
+	return 0;
+}
diff --git a/kernel/arch/mips/alchemy/devboards/db1300.c b/kernel/arch/mips/alchemy/devboards/db1300.c
new file mode 100644
index 000000000..1c64fdbe4
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/db1300.c
@@ -0,0 +1,866 @@
+/*
+ * DBAu1300 init and platform device setup.
+ *
+ * (c) 2009 Manuel Lauss <manuel.lauss@googlemail.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/init.h>
+#include <linux/input.h>	/* KEY_* codes */
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/leds.h>
+#include <linux/ata_platform.h>
+#include <linux/mmc/host.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/smsc911x.h>
+#include <linux/wm97xx.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1100_mmc.h>
+#include <asm/mach-au1x00/au1200fb.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+#include <asm/mach-au1x00/au1xxx_psc.h>
+#include <asm/mach-db1x00/bcsr.h>
+#include <asm/mach-au1x00/prom.h>
+
+#include "platform.h"
+
+/* FPGA (external mux) interrupt sources */
+#define DB1300_FIRST_INT	(ALCHEMY_GPIC_INT_LAST + 1)
+#define DB1300_IDE_INT		(DB1300_FIRST_INT + 0)
+#define DB1300_ETH_INT		(DB1300_FIRST_INT + 1)
+#define DB1300_CF_INT		(DB1300_FIRST_INT + 2)
+#define DB1300_VIDEO_INT	(DB1300_FIRST_INT + 4)
+#define DB1300_HDMI_INT		(DB1300_FIRST_INT + 5)
+#define DB1300_DC_INT		(DB1300_FIRST_INT + 6)
+#define DB1300_FLASH_INT	(DB1300_FIRST_INT + 7)
+#define DB1300_CF_INSERT_INT	(DB1300_FIRST_INT + 8)
+#define DB1300_CF_EJECT_INT	(DB1300_FIRST_INT + 9)
+#define DB1300_AC97_INT		(DB1300_FIRST_INT + 10)
+#define DB1300_AC97_PEN_INT	(DB1300_FIRST_INT + 11)
+#define DB1300_SD1_INSERT_INT	(DB1300_FIRST_INT + 12)
+#define DB1300_SD1_EJECT_INT	(DB1300_FIRST_INT + 13)
+#define DB1300_OTG_VBUS_OC_INT	(DB1300_FIRST_INT + 14)
+#define DB1300_HOST_VBUS_OC_INT (DB1300_FIRST_INT + 15)
+#define DB1300_LAST_INT		(DB1300_FIRST_INT + 15)
+
+/* SMSC9210 CS */
+#define DB1300_ETH_PHYS_ADDR	0x19000000
+#define DB1300_ETH_PHYS_END	0x197fffff
+
+/* ATA CS */
+#define DB1300_IDE_PHYS_ADDR	0x18800000
+#define DB1300_IDE_REG_SHIFT	5
+#define DB1300_IDE_PHYS_LEN	(16 << DB1300_IDE_REG_SHIFT)
+
+/* NAND CS */
+#define DB1300_NAND_PHYS_ADDR	0x20000000
+#define DB1300_NAND_PHYS_END	0x20000fff
+
+
+static struct i2c_board_info db1300_i2c_devs[] __initdata = {
+	{ I2C_BOARD_INFO("wm8731", 0x1b), },	/* I2S audio codec */
+	{ I2C_BOARD_INFO("ne1619", 0x2d), },	/* adm1025-compat hwmon */
+};
+
+/* multifunction pins to assign to GPIO controller */
+static int db1300_gpio_pins[] __initdata = {
+	AU1300_PIN_LCDPWM0, AU1300_PIN_PSC2SYNC1, AU1300_PIN_WAKE1,
+	AU1300_PIN_WAKE2, AU1300_PIN_WAKE3, AU1300_PIN_FG3AUX,
+	AU1300_PIN_EXTCLK1,
+	-1,	/* terminator */
+};
+
+/* multifunction pins to assign to device functions */
+static int db1300_dev_pins[] __initdata = {
+	/* wake-from-str pins 0-3 */
+	AU1300_PIN_WAKE0,
+	/* external clock sources for PSC0 */
+	AU1300_PIN_EXTCLK0,
+	/* 8bit MMC interface on SD0: 6-9 */
+	AU1300_PIN_SD0DAT4, AU1300_PIN_SD0DAT5, AU1300_PIN_SD0DAT6,
+	AU1300_PIN_SD0DAT7,
+	/* UART1 pins: 11-18 */
+	AU1300_PIN_U1RI, AU1300_PIN_U1DCD, AU1300_PIN_U1DSR,
+	AU1300_PIN_U1CTS, AU1300_PIN_U1RTS, AU1300_PIN_U1DTR,
+	AU1300_PIN_U1RX, AU1300_PIN_U1TX,
+	/* UART0 pins: 19-24 */
+	AU1300_PIN_U0RI, AU1300_PIN_U0DCD, AU1300_PIN_U0DSR,
+	AU1300_PIN_U0CTS, AU1300_PIN_U0RTS, AU1300_PIN_U0DTR,
+	/* UART2: 25-26 */
+	AU1300_PIN_U2RX, AU1300_PIN_U2TX,
+	/* UART3: 27-28 */
+	AU1300_PIN_U3RX, AU1300_PIN_U3TX,
+	/* LCD controller PWMs, ext pixclock: 30-31 */
+	AU1300_PIN_LCDPWM1, AU1300_PIN_LCDCLKIN,
+	/* SD1 interface: 32-37 */
+	AU1300_PIN_SD1DAT0, AU1300_PIN_SD1DAT1, AU1300_PIN_SD1DAT2,
+	AU1300_PIN_SD1DAT3, AU1300_PIN_SD1CMD, AU1300_PIN_SD1CLK,
+	/* SD2 interface: 38-43 */
+	AU1300_PIN_SD2DAT0, AU1300_PIN_SD2DAT1, AU1300_PIN_SD2DAT2,
+	AU1300_PIN_SD2DAT3, AU1300_PIN_SD2CMD, AU1300_PIN_SD2CLK,
+	/* PSC0/1 clocks: 44-45 */
+	AU1300_PIN_PSC0CLK, AU1300_PIN_PSC1CLK,
+	/* PSCs: 46-49/50-53/54-57/58-61 */
+	AU1300_PIN_PSC0SYNC0, AU1300_PIN_PSC0SYNC1, AU1300_PIN_PSC0D0,
+	AU1300_PIN_PSC0D1,
+	AU1300_PIN_PSC1SYNC0, AU1300_PIN_PSC1SYNC1, AU1300_PIN_PSC1D0,
+	AU1300_PIN_PSC1D1,
+	AU1300_PIN_PSC2SYNC0,			    AU1300_PIN_PSC2D0,
+	AU1300_PIN_PSC2D1,
+	AU1300_PIN_PSC3SYNC0, AU1300_PIN_PSC3SYNC1, AU1300_PIN_PSC3D0,
+	AU1300_PIN_PSC3D1,
+	/* PCMCIA interface: 62-70 */
+	AU1300_PIN_PCE2, AU1300_PIN_PCE1, AU1300_PIN_PIOS16,
+	AU1300_PIN_PIOR, AU1300_PIN_PWE, AU1300_PIN_PWAIT,
+	AU1300_PIN_PREG, AU1300_PIN_POE, AU1300_PIN_PIOW,
+	/* camera interface H/V sync inputs: 71-72 */
+	AU1300_PIN_CIMLS, AU1300_PIN_CIMFS,
+	/* PSC2/3 clocks: 73-74 */
+	AU1300_PIN_PSC2CLK, AU1300_PIN_PSC3CLK,
+	-1,	/* terminator */
+};
+
+static void __init db1300_gpio_config(void)
+{
+	int *i;
+
+	i = &db1300_dev_pins[0];
+	while (*i != -1)
+		au1300_pinfunc_to_dev(*i++);
+
+	i = &db1300_gpio_pins[0];
+	while (*i != -1)
+		au1300_gpio_direction_input(*i++);/* implies pin_to_gpio */
+
+	au1300_set_dbdma_gpio(1, AU1300_PIN_FG3AUX);
+}
+
+/**********************************************************************/
+
+static void au1300_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+				 unsigned int ctrl)
+{
+	struct nand_chip *this = mtd->priv;
+	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
+
+	ioaddr &= 0xffffff00;
+
+	if (ctrl & NAND_CLE) {
+		ioaddr += MEM_STNAND_CMD;
+	} else if (ctrl & NAND_ALE) {
+		ioaddr += MEM_STNAND_ADDR;
+	} else {
+		/* assume we want to r/w real data  by default */
+		ioaddr += MEM_STNAND_DATA;
+	}
+	this->IO_ADDR_R = this->IO_ADDR_W = (void __iomem *)ioaddr;
+	if (cmd != NAND_CMD_NONE) {
+		__raw_writeb(cmd, this->IO_ADDR_W);
+		wmb();
+	}
+}
+
+static int au1300_nand_device_ready(struct mtd_info *mtd)
+{
+	return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1;
+}
+
+static struct mtd_partition db1300_nand_parts[] = {
+	{
+		.name	= "NAND FS 0",
+		.offset = 0,
+		.size	= 8 * 1024 * 1024,
+	},
+	{
+		.name	= "NAND FS 1",
+		.offset = MTDPART_OFS_APPEND,
+		.size	= MTDPART_SIZ_FULL
+	},
+};
+
+struct platform_nand_data db1300_nand_platdata = {
+	.chip = {
+		.nr_chips	= 1,
+		.chip_offset	= 0,
+		.nr_partitions	= ARRAY_SIZE(db1300_nand_parts),
+		.partitions	= db1300_nand_parts,
+		.chip_delay	= 20,
+	},
+	.ctrl = {
+		.dev_ready	= au1300_nand_device_ready,
+		.cmd_ctrl	= au1300_nand_cmd_ctrl,
+	},
+};
+
+static struct resource db1300_nand_res[] = {
+	[0] = {
+		.start	= DB1300_NAND_PHYS_ADDR,
+		.end	= DB1300_NAND_PHYS_ADDR + 0xff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device db1300_nand_dev = {
+	.name		= "gen_nand",
+	.num_resources	= ARRAY_SIZE(db1300_nand_res),
+	.resource	= db1300_nand_res,
+	.id		= -1,
+	.dev		= {
+		.platform_data = &db1300_nand_platdata,
+	}
+};
+
+/**********************************************************************/
+
+static struct resource db1300_eth_res[] = {
+	[0] = {
+		.start		= DB1300_ETH_PHYS_ADDR,
+		.end		= DB1300_ETH_PHYS_END,
+		.flags		= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start		= DB1300_ETH_INT,
+		.end		= DB1300_ETH_INT,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct smsc911x_platform_config db1300_eth_config = {
+	.phy_interface		= PHY_INTERFACE_MODE_MII,
+	.irq_polarity		= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+	.irq_type		= SMSC911X_IRQ_TYPE_PUSH_PULL,
+	.flags			= SMSC911X_USE_32BIT,
+};
+
+static struct platform_device db1300_eth_dev = {
+	.name			= "smsc911x",
+	.id			= -1,
+	.num_resources		= ARRAY_SIZE(db1300_eth_res),
+	.resource		= db1300_eth_res,
+	.dev = {
+		.platform_data	= &db1300_eth_config,
+	},
+};
+
+/**********************************************************************/
+
+static struct resource au1300_psc1_res[] = {
+	[0] = {
+		.start	= AU1300_PSC1_PHYS_ADDR,
+		.end	= AU1300_PSC1_PHYS_ADDR + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1300_PSC1_INT,
+		.end	= AU1300_PSC1_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1300_DSCR_CMD0_PSC1_TX,
+		.end	= AU1300_DSCR_CMD0_PSC1_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1300_DSCR_CMD0_PSC1_RX,
+		.end	= AU1300_DSCR_CMD0_PSC1_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1300_ac97_dev = {
+	.name		= "au1xpsc_ac97",
+	.id		= 1,	/* PSC ID. match with AC97 codec ID! */
+	.num_resources	= ARRAY_SIZE(au1300_psc1_res),
+	.resource	= au1300_psc1_res,
+};
+
+/**********************************************************************/
+
+static struct resource au1300_psc2_res[] = {
+	[0] = {
+		.start	= AU1300_PSC2_PHYS_ADDR,
+		.end	= AU1300_PSC2_PHYS_ADDR + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1300_PSC2_INT,
+		.end	= AU1300_PSC2_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1300_DSCR_CMD0_PSC2_TX,
+		.end	= AU1300_DSCR_CMD0_PSC2_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1300_DSCR_CMD0_PSC2_RX,
+		.end	= AU1300_DSCR_CMD0_PSC2_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1300_i2s_dev = {
+	.name		= "au1xpsc_i2s",
+	.id		= 2,	/* PSC ID */
+	.num_resources	= ARRAY_SIZE(au1300_psc2_res),
+	.resource	= au1300_psc2_res,
+};
+
+/**********************************************************************/
+
+static struct resource au1300_psc3_res[] = {
+	[0] = {
+		.start	= AU1300_PSC3_PHYS_ADDR,
+		.end	= AU1300_PSC3_PHYS_ADDR + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1300_PSC3_INT,
+		.end	= AU1300_PSC3_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1300_DSCR_CMD0_PSC3_TX,
+		.end	= AU1300_DSCR_CMD0_PSC3_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1300_DSCR_CMD0_PSC3_RX,
+		.end	= AU1300_DSCR_CMD0_PSC3_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1300_i2c_dev = {
+	.name		= "au1xpsc_smbus",
+	.id		= 0,	/* bus number */
+	.num_resources	= ARRAY_SIZE(au1300_psc3_res),
+	.resource	= au1300_psc3_res,
+};
+
+/**********************************************************************/
+
+/* proper key assignments when facing the LCD panel.  For key assignments
+ * according to the schematics swap up with down and left with right.
+ * I chose to use it to emulate the arrow keys of a keyboard.
+ */
+static struct gpio_keys_button db1300_5waysw_arrowkeys[] = {
+	{
+		.code			= KEY_DOWN,
+		.gpio			= AU1300_PIN_LCDPWM0,
+		.type			= EV_KEY,
+		.debounce_interval	= 1,
+		.active_low		= 1,
+		.desc			= "5waysw-down",
+	},
+	{
+		.code			= KEY_UP,
+		.gpio			= AU1300_PIN_PSC2SYNC1,
+		.type			= EV_KEY,
+		.debounce_interval	= 1,
+		.active_low		= 1,
+		.desc			= "5waysw-up",
+	},
+	{
+		.code			= KEY_RIGHT,
+		.gpio			= AU1300_PIN_WAKE3,
+		.type			= EV_KEY,
+		.debounce_interval	= 1,
+		.active_low		= 1,
+		.desc			= "5waysw-right",
+	},
+	{
+		.code			= KEY_LEFT,
+		.gpio			= AU1300_PIN_WAKE2,
+		.type			= EV_KEY,
+		.debounce_interval	= 1,
+		.active_low		= 1,
+		.desc			= "5waysw-left",
+	},
+	{
+		.code			= KEY_ENTER,
+		.gpio			= AU1300_PIN_WAKE1,
+		.type			= EV_KEY,
+		.debounce_interval	= 1,
+		.active_low		= 1,
+		.desc			= "5waysw-push",
+	},
+};
+
+static struct gpio_keys_platform_data db1300_5waysw_data = {
+	.buttons	= db1300_5waysw_arrowkeys,
+	.nbuttons	= ARRAY_SIZE(db1300_5waysw_arrowkeys),
+	.rep		= 1,
+	.name		= "db1300-5wayswitch",
+};
+
+static struct platform_device db1300_5waysw_dev = {
+	.name		= "gpio-keys",
+	.dev	= {
+		.platform_data	= &db1300_5waysw_data,
+	},
+};
+
+/**********************************************************************/
+
+static struct pata_platform_info db1300_ide_info = {
+	.ioport_shift	= DB1300_IDE_REG_SHIFT,
+};
+
+#define IDE_ALT_START	(14 << DB1300_IDE_REG_SHIFT)
+static struct resource db1300_ide_res[] = {
+	[0] = {
+		.start	= DB1300_IDE_PHYS_ADDR,
+		.end	= DB1300_IDE_PHYS_ADDR + IDE_ALT_START - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= DB1300_IDE_PHYS_ADDR + IDE_ALT_START,
+		.end	= DB1300_IDE_PHYS_ADDR + DB1300_IDE_PHYS_LEN - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= DB1300_IDE_INT,
+		.end	= DB1300_IDE_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device db1300_ide_dev = {
+	.dev	= {
+		.platform_data	= &db1300_ide_info,
+	},
+	.name		= "pata_platform",
+	.resource	= db1300_ide_res,
+	.num_resources	= ARRAY_SIZE(db1300_ide_res),
+};
+
+/**********************************************************************/
+
+static irqreturn_t db1300_mmc_cd(int irq, void *ptr)
+{
+	void(*mmc_cd)(struct mmc_host *, unsigned long);
+
+	/* disable the one currently screaming. No other way to shut it up */
+	if (irq == DB1300_SD1_INSERT_INT) {
+		disable_irq_nosync(DB1300_SD1_INSERT_INT);
+		enable_irq(DB1300_SD1_EJECT_INT);
+	} else {
+		disable_irq_nosync(DB1300_SD1_EJECT_INT);
+		enable_irq(DB1300_SD1_INSERT_INT);
+	}
+
+	/* link against CONFIG_MMC=m.  We can only be called once MMC core has
+	 * initialized the controller, so symbol_get() should always succeed.
+	 */
+	mmc_cd = symbol_get(mmc_detect_change);
+	mmc_cd(ptr, msecs_to_jiffies(500));
+	symbol_put(mmc_detect_change);
+
+	return IRQ_HANDLED;
+}
+
+static int db1300_mmc_card_readonly(void *mmc_host)
+{
+	/* it uses SD1 interface, but the DB1200's SD0 bit in the CPLD */
+	return bcsr_read(BCSR_STATUS) & BCSR_STATUS_SD0WP;
+}
+
+static int db1300_mmc_card_inserted(void *mmc_host)
+{
+	return bcsr_read(BCSR_SIGSTAT) & (1 << 12); /* insertion irq signal */
+}
+
+static int db1300_mmc_cd_setup(void *mmc_host, int en)
+{
+	int ret;
+
+	if (en) {
+		ret = request_irq(DB1300_SD1_INSERT_INT, db1300_mmc_cd, 0,
+				  "sd_insert", mmc_host);
+		if (ret)
+			goto out;
+
+		ret = request_irq(DB1300_SD1_EJECT_INT, db1300_mmc_cd, 0,
+				  "sd_eject", mmc_host);
+		if (ret) {
+			free_irq(DB1300_SD1_INSERT_INT, mmc_host);
+			goto out;
+		}
+
+		if (db1300_mmc_card_inserted(mmc_host))
+			enable_irq(DB1300_SD1_EJECT_INT);
+		else
+			enable_irq(DB1300_SD1_INSERT_INT);
+
+	} else {
+		free_irq(DB1300_SD1_INSERT_INT, mmc_host);
+		free_irq(DB1300_SD1_EJECT_INT, mmc_host);
+	}
+	ret = 0;
+out:
+	return ret;
+}
+
+static void db1300_mmcled_set(struct led_classdev *led,
+			      enum led_brightness brightness)
+{
+	if (brightness != LED_OFF)
+		bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED0, 0);
+	else
+		bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED0);
+}
+
+static struct led_classdev db1300_mmc_led = {
+	.brightness_set = db1300_mmcled_set,
+};
+
+struct au1xmmc_platform_data db1300_sd1_platdata = {
+	.cd_setup	= db1300_mmc_cd_setup,
+	.card_inserted	= db1300_mmc_card_inserted,
+	.card_readonly	= db1300_mmc_card_readonly,
+	.led		= &db1300_mmc_led,
+};
+
+static struct resource au1300_sd1_res[] = {
+	[0] = {
+		.start	= AU1300_SD1_PHYS_ADDR,
+		.end	= AU1300_SD1_PHYS_ADDR,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1300_SD1_INT,
+		.end	= AU1300_SD1_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1300_DSCR_CMD0_SDMS_TX1,
+		.end	= AU1300_DSCR_CMD0_SDMS_TX1,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1300_DSCR_CMD0_SDMS_RX1,
+		.end	= AU1300_DSCR_CMD0_SDMS_RX1,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1300_sd1_dev = {
+	.dev = {
+		.platform_data	= &db1300_sd1_platdata,
+	},
+	.name		= "au1xxx-mmc",
+	.id		= 1,
+	.resource	= au1300_sd1_res,
+	.num_resources	= ARRAY_SIZE(au1300_sd1_res),
+};
+
+/**********************************************************************/
+
+static int db1300_movinand_inserted(void *mmc_host)
+{
+	return 0; /* disable for now, it doesn't work yet */
+}
+
+static int db1300_movinand_readonly(void *mmc_host)
+{
+	return 0;
+}
+
+static void db1300_movinand_led_set(struct led_classdev *led,
+				    enum led_brightness brightness)
+{
+	if (brightness != LED_OFF)
+		bcsr_mod(BCSR_LEDS, BCSR_LEDS_LED1, 0);
+	else
+		bcsr_mod(BCSR_LEDS, 0, BCSR_LEDS_LED1);
+}
+
+static struct led_classdev db1300_movinand_led = {
+	.brightness_set		= db1300_movinand_led_set,
+};
+
+struct au1xmmc_platform_data db1300_sd0_platdata = {
+	.card_inserted		= db1300_movinand_inserted,
+	.card_readonly		= db1300_movinand_readonly,
+	.led			= &db1300_movinand_led,
+	.mask_host_caps		= MMC_CAP_NEEDS_POLL,
+};
+
+static struct resource au1300_sd0_res[] = {
+	[0] = {
+		.start	= AU1100_SD0_PHYS_ADDR,
+		.end	= AU1100_SD0_PHYS_ADDR,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1300_SD0_INT,
+		.end	= AU1300_SD0_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1300_DSCR_CMD0_SDMS_TX0,
+		.end	= AU1300_DSCR_CMD0_SDMS_TX0,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1300_DSCR_CMD0_SDMS_RX0,
+		.end	= AU1300_DSCR_CMD0_SDMS_RX0,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1300_sd0_dev = {
+	.dev = {
+		.platform_data	= &db1300_sd0_platdata,
+	},
+	.name		= "au1xxx-mmc",
+	.id		= 0,
+	.resource	= au1300_sd0_res,
+	.num_resources	= ARRAY_SIZE(au1300_sd0_res),
+};
+
+/**********************************************************************/
+
+static struct platform_device db1300_wm9715_dev = {
+	.name		= "wm9712-codec",
+	.id		= 1,	/* ID of PSC for AC97 audio, see asoc glue! */
+};
+
+static struct platform_device db1300_ac97dma_dev = {
+	.name		= "au1xpsc-pcm",
+	.id		= 1,	/* PSC ID */
+};
+
+static struct platform_device db1300_i2sdma_dev = {
+	.name		= "au1xpsc-pcm",
+	.id		= 2,	/* PSC ID */
+};
+
+static struct platform_device db1300_sndac97_dev = {
+	.name		= "db1300-ac97",
+};
+
+static struct platform_device db1300_sndi2s_dev = {
+	.name		= "db1300-i2s",
+};
+
+/**********************************************************************/
+
+static int db1300fb_panel_index(void)
+{
+	return 9;	/* DB1300_800x480 */
+}
+
+static int db1300fb_panel_init(void)
+{
+	/* Apply power (Vee/Vdd logic is inverted on Panel DB1300_800x480) */
+	bcsr_mod(BCSR_BOARD, BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD,
+			     BCSR_BOARD_LCDBL);
+	return 0;
+}
+
+static int db1300fb_panel_shutdown(void)
+{
+	/* Remove power (Vee/Vdd logic is inverted on Panel DB1300_800x480) */
+	bcsr_mod(BCSR_BOARD, BCSR_BOARD_LCDBL,
+			     BCSR_BOARD_LCDVEE | BCSR_BOARD_LCDVDD);
+	return 0;
+}
+
+static struct au1200fb_platdata db1300fb_pd = {
+	.panel_index	= db1300fb_panel_index,
+	.panel_init	= db1300fb_panel_init,
+	.panel_shutdown = db1300fb_panel_shutdown,
+};
+
+static struct resource au1300_lcd_res[] = {
+	[0] = {
+		.start	= AU1200_LCD_PHYS_ADDR,
+		.end	= AU1200_LCD_PHYS_ADDR + 0x800 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1300_LCD_INT,
+		.end	= AU1300_LCD_INT,
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static u64 au1300_lcd_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device db1300_lcd_dev = {
+	.name		= "au1200-lcd",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= &au1300_lcd_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1300fb_pd,
+	},
+	.num_resources	= ARRAY_SIZE(au1300_lcd_res),
+	.resource	= au1300_lcd_res,
+};
+
+/**********************************************************************/
+
+static void db1300_wm97xx_irqen(struct wm97xx *wm, int enable)
+{
+	if (enable)
+		enable_irq(DB1300_AC97_PEN_INT);
+	else
+		disable_irq_nosync(DB1300_AC97_PEN_INT);
+}
+
+static struct wm97xx_mach_ops db1300_wm97xx_ops = {
+	.irq_enable	= db1300_wm97xx_irqen,
+	.irq_gpio	= WM97XX_GPIO_3,
+};
+
+static int db1300_wm97xx_probe(struct platform_device *pdev)
+{
+	struct wm97xx *wm = platform_get_drvdata(pdev);
+
+	/* external pendown indicator */
+	wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
+			   WM97XX_GPIO_POL_LOW, WM97XX_GPIO_STICKY,
+			   WM97XX_GPIO_WAKE);
+
+	/* internal "virtual" pendown gpio */
+	wm97xx_config_gpio(wm, WM97XX_GPIO_3, WM97XX_GPIO_OUT,
+			   WM97XX_GPIO_POL_LOW, WM97XX_GPIO_NOTSTICKY,
+			   WM97XX_GPIO_NOWAKE);
+
+	wm->pen_irq = DB1300_AC97_PEN_INT;
+
+	return wm97xx_register_mach_ops(wm, &db1300_wm97xx_ops);
+}
+
+static struct platform_driver db1300_wm97xx_driver = {
+	.driver.name	= "wm97xx-touch",
+	.driver.owner	= THIS_MODULE,
+	.probe		= db1300_wm97xx_probe,
+};
+
+/**********************************************************************/
+
+static struct platform_device *db1300_dev[] __initdata = {
+	&db1300_eth_dev,
+	&db1300_i2c_dev,
+	&db1300_5waysw_dev,
+	&db1300_nand_dev,
+	&db1300_ide_dev,
+	&db1300_sd0_dev,
+	&db1300_sd1_dev,
+	&db1300_lcd_dev,
+	&db1300_ac97_dev,
+	&db1300_i2s_dev,
+	&db1300_wm9715_dev,
+	&db1300_ac97dma_dev,
+	&db1300_i2sdma_dev,
+	&db1300_sndac97_dev,
+	&db1300_sndi2s_dev,
+};
+
+int __init db1300_dev_setup(void)
+{
+	int swapped, cpldirq;
+	struct clk *c;
+
+	/* setup CPLD IRQ muxer */
+	cpldirq = au1300_gpio_to_irq(AU1300_PIN_EXTCLK1);
+	irq_set_irq_type(cpldirq, IRQ_TYPE_LEVEL_HIGH);
+	bcsr_init_irq(DB1300_FIRST_INT, DB1300_LAST_INT, cpldirq);
+
+	/* insert/eject IRQs: one always triggers so don't enable them
+	 * when doing request_irq() on them.  DB1200 has this bug too.
+	 */
+	irq_set_status_flags(DB1300_SD1_INSERT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1300_SD1_EJECT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1300_CF_INSERT_INT, IRQ_NOAUTOEN);
+	irq_set_status_flags(DB1300_CF_EJECT_INT, IRQ_NOAUTOEN);
+
+	/*
+	 * setup board
+	 */
+	prom_get_ethernet_addr(&db1300_eth_config.mac[0]);
+
+	i2c_register_board_info(0, db1300_i2c_devs,
+				ARRAY_SIZE(db1300_i2c_devs));
+
+	if (platform_driver_register(&db1300_wm97xx_driver))
+		pr_warn("DB1300: failed to init touch pen irq support!\n");
+
+	/* Audio PSC clock is supplied by codecs (PSC1, 2) */
+	__raw_writel(PSC_SEL_CLK_SERCLK,
+	    (void __iomem *)KSEG1ADDR(AU1300_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET);
+	wmb();
+	__raw_writel(PSC_SEL_CLK_SERCLK,
+	    (void __iomem *)KSEG1ADDR(AU1300_PSC2_PHYS_ADDR) + PSC_SEL_OFFSET);
+	wmb();
+	/* I2C driver wants 50MHz, get as close as possible */
+	c = clk_get(NULL, "psc3_intclk");
+	if (!IS_ERR(c)) {
+		clk_set_rate(c, 50000000);
+		clk_prepare_enable(c);
+		clk_put(c);
+	}
+	__raw_writel(PSC_SEL_CLK_INTCLK,
+	    (void __iomem *)KSEG1ADDR(AU1300_PSC3_PHYS_ADDR) + PSC_SEL_OFFSET);
+	wmb();
+
+	/* enable power to USB ports */
+	bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_USBHPWR | BCSR_RESETS_OTGPWR);
+
+	/* although it is socket #0, it uses the CPLD bits which previous boards
+	 * have used for socket #1.
+	 */
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x00400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x00400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x00010000 - 1,
+		DB1300_CF_INT, DB1300_CF_INSERT_INT, 0, DB1300_CF_EJECT_INT, 1);
+
+	swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1200_SWAPBOOT;
+	db1x_register_norflash(64 << 20, 2, swapped);
+
+	return platform_add_devices(db1300_dev, ARRAY_SIZE(db1300_dev));
+}
+
+
+int __init db1300_board_setup(void)
+{
+	unsigned short whoami;
+
+	bcsr_init(DB1300_BCSR_PHYS_ADDR,
+		  DB1300_BCSR_PHYS_ADDR + DB1300_BCSR_HEXLED_OFS);
+
+	whoami = bcsr_read(BCSR_WHOAMI);
+	if (BCSR_WHOAMI_BOARD(whoami) != BCSR_WHOAMI_DB1300)
+		return -ENODEV;
+
+	db1300_gpio_config();
+
+	printk(KERN_INFO "NetLogic DBAu1300 Development Platform.\n\t"
+		"BoardID %d   CPLD Rev %d   DaughtercardID %d\n",
+		BCSR_WHOAMI_BOARD(whoami), BCSR_WHOAMI_CPLD(whoami),
+		BCSR_WHOAMI_DCID(whoami));
+
+	/* enable UARTs, YAMON only enables #2 */
+	alchemy_uart_enable(AU1300_UART0_PHYS_ADDR);
+	alchemy_uart_enable(AU1300_UART1_PHYS_ADDR);
+	alchemy_uart_enable(AU1300_UART3_PHYS_ADDR);
+
+	return 0;
+}
diff --git a/kernel/arch/mips/alchemy/devboards/db1550.c b/kernel/arch/mips/alchemy/devboards/db1550.c
new file mode 100644
index 000000000..0fd5177e3
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/db1550.c
@@ -0,0 +1,619 @@
+/*
+ * Alchemy Db1550/Pb1550 board support
+ *
+ * (c) 2011 Manuel Lauss <manuel.lauss@googlemail.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <asm/bootinfo.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1xxx_eth.h>
+#include <asm/mach-au1x00/au1xxx_dbdma.h>
+#include <asm/mach-au1x00/au1xxx_psc.h>
+#include <asm/mach-au1x00/au1550_spi.h>
+#include <asm/mach-au1x00/au1550nd.h>
+#include <asm/mach-db1x00/bcsr.h>
+#include <prom.h>
+#include "platform.h"
+
+static void __init db1550_hw_setup(void)
+{
+	void __iomem *base;
+	unsigned long v;
+
+	/* complete pin setup: assign GPIO16 to PSC0_SYNC1 (SPI cs# line)
+	 * as well as PSC1_SYNC for AC97 on PB1550.
+	 */
+	v = alchemy_rdsys(AU1000_SYS_PINFUNC);
+	alchemy_wrsys(v | 1 | SYS_PF_PSC1_S1, AU1000_SYS_PINFUNC);
+
+	/* reset the AC97 codec now, the reset time in the psc-ac97 driver
+	 * is apparently too short although it's ridiculous as it is.
+	 */
+	base = (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR);
+	__raw_writel(PSC_SEL_CLK_SERCLK | PSC_SEL_PS_AC97MODE,
+		     base + PSC_SEL_OFFSET);
+	__raw_writel(PSC_CTRL_DISABLE, base + PSC_CTRL_OFFSET);
+	wmb();
+	__raw_writel(PSC_AC97RST_RST, base + PSC_AC97RST_OFFSET);
+	wmb();
+}
+
+int __init db1550_board_setup(void)
+{
+	unsigned short whoami;
+
+	bcsr_init(DB1550_BCSR_PHYS_ADDR,
+		  DB1550_BCSR_PHYS_ADDR + DB1550_BCSR_HEXLED_OFS);
+
+	whoami = bcsr_read(BCSR_WHOAMI); /* PB1550 hexled offset differs */
+	switch (BCSR_WHOAMI_BOARD(whoami)) {
+	case BCSR_WHOAMI_PB1550_SDR:
+	case BCSR_WHOAMI_PB1550_DDR:
+		bcsr_init(PB1550_BCSR_PHYS_ADDR,
+			  PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS);
+	case BCSR_WHOAMI_DB1550:
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	pr_info("Alchemy/AMD %s Board, CPLD Rev %d Board-ID %d	"	\
+		"Daughtercard ID %d\n", get_system_type(),
+		(whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf);
+
+	db1550_hw_setup();
+	return 0;
+}
+
+/*****************************************************************************/
+
+static struct mtd_partition db1550_spiflash_parts[] = {
+	{
+		.name	= "spi_flash",
+		.offset = 0,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct flash_platform_data db1550_spiflash_data = {
+	.name		= "s25fl010",
+	.parts		= db1550_spiflash_parts,
+	.nr_parts	= ARRAY_SIZE(db1550_spiflash_parts),
+	.type		= "m25p10",
+};
+
+static struct spi_board_info db1550_spi_devs[] __initdata = {
+	{
+		/* TI TMP121AIDBVR temp sensor */
+		.modalias	= "tmp121",
+		.max_speed_hz	= 2400000,
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.mode		= SPI_MODE_0,
+	},
+	{
+		/* Spansion S25FL001D0FMA SPI flash */
+		.modalias	= "m25p80",
+		.max_speed_hz	= 2400000,
+		.bus_num	= 0,
+		.chip_select	= 1,
+		.mode		= SPI_MODE_0,
+		.platform_data	= &db1550_spiflash_data,
+	},
+};
+
+static struct i2c_board_info db1550_i2c_devs[] __initdata = {
+	{ I2C_BOARD_INFO("24c04",  0x52),}, /* AT24C04-10 I2C eeprom */
+	{ I2C_BOARD_INFO("ne1619", 0x2d),}, /* adm1025-compat hwmon */
+	{ I2C_BOARD_INFO("wm8731", 0x1b),}, /* I2S audio codec WM8731 */
+};
+
+/**********************************************************************/
+
+static void au1550_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+				 unsigned int ctrl)
+{
+	struct nand_chip *this = mtd->priv;
+	unsigned long ioaddr = (unsigned long)this->IO_ADDR_W;
+
+	ioaddr &= 0xffffff00;
+
+	if (ctrl & NAND_CLE) {
+		ioaddr += MEM_STNAND_CMD;
+	} else if (ctrl & NAND_ALE) {
+		ioaddr += MEM_STNAND_ADDR;
+	} else {
+		/* assume we want to r/w real data  by default */
+		ioaddr += MEM_STNAND_DATA;
+	}
+	this->IO_ADDR_R = this->IO_ADDR_W = (void __iomem *)ioaddr;
+	if (cmd != NAND_CMD_NONE) {
+		__raw_writeb(cmd, this->IO_ADDR_W);
+		wmb();
+	}
+}
+
+static int au1550_nand_device_ready(struct mtd_info *mtd)
+{
+	return alchemy_rdsmem(AU1000_MEM_STSTAT) & 1;
+}
+
+static struct mtd_partition db1550_nand_parts[] = {
+	{
+		.name	= "NAND FS 0",
+		.offset = 0,
+		.size	= 8 * 1024 * 1024,
+	},
+	{
+		.name	= "NAND FS 1",
+		.offset = MTDPART_OFS_APPEND,
+		.size	= MTDPART_SIZ_FULL
+	},
+};
+
+struct platform_nand_data db1550_nand_platdata = {
+	.chip = {
+		.nr_chips	= 1,
+		.chip_offset	= 0,
+		.nr_partitions	= ARRAY_SIZE(db1550_nand_parts),
+		.partitions	= db1550_nand_parts,
+		.chip_delay	= 20,
+	},
+	.ctrl = {
+		.dev_ready	= au1550_nand_device_ready,
+		.cmd_ctrl	= au1550_nand_cmd_ctrl,
+	},
+};
+
+static struct resource db1550_nand_res[] = {
+	[0] = {
+		.start	= 0x20000000,
+		.end	= 0x200000ff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device db1550_nand_dev = {
+	.name		= "gen_nand",
+	.num_resources	= ARRAY_SIZE(db1550_nand_res),
+	.resource	= db1550_nand_res,
+	.id		= -1,
+	.dev		= {
+		.platform_data = &db1550_nand_platdata,
+	}
+};
+
+static struct au1550nd_platdata pb1550_nand_pd = {
+	.parts		= db1550_nand_parts,
+	.num_parts	= ARRAY_SIZE(db1550_nand_parts),
+	.devwidth	= 0,	/* x8 NAND default, needs fixing up */
+};
+
+static struct platform_device pb1550_nand_dev = {
+	.name		= "au1550-nand",
+	.id		= -1,
+	.resource	= db1550_nand_res,
+	.num_resources	= ARRAY_SIZE(db1550_nand_res),
+	.dev		= {
+		.platform_data	= &pb1550_nand_pd,
+	},
+};
+
+static void __init pb1550_nand_setup(void)
+{
+	int boot_swapboot = (alchemy_rdsmem(AU1000_MEM_STSTAT) & (0x7 << 1)) |
+			    ((bcsr_read(BCSR_STATUS) >> 6) & 0x1);
+
+	gpio_direction_input(206);	/* de-assert NAND CS# */
+	switch (boot_swapboot) {
+	case 0: case 2: case 8: case 0xC: case 0xD:
+		/* x16 NAND Flash */
+		pb1550_nand_pd.devwidth = 1;
+		/* fallthrough */
+	case 1: case 3: case 9: case 0xE: case 0xF:
+		/* x8 NAND, already set up */
+		platform_device_register(&pb1550_nand_dev);
+	}
+}
+
+/**********************************************************************/
+
+static struct resource au1550_psc0_res[] = {
+	[0] = {
+		.start	= AU1550_PSC0_PHYS_ADDR,
+		.end	= AU1550_PSC0_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1550_PSC0_INT,
+		.end	= AU1550_PSC0_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1550_DSCR_CMD0_PSC0_TX,
+		.end	= AU1550_DSCR_CMD0_PSC0_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1550_DSCR_CMD0_PSC0_RX,
+		.end	= AU1550_DSCR_CMD0_PSC0_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static void db1550_spi_cs_en(struct au1550_spi_info *spi, int cs, int pol)
+{
+	if (cs)
+		bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SPISEL);
+	else
+		bcsr_mod(BCSR_BOARD, BCSR_BOARD_SPISEL, 0);
+}
+
+static struct au1550_spi_info db1550_spi_platdata = {
+	.mainclk_hz	= 48000000,	/* PSC0 clock: max. 2.4MHz SPI clk */
+	.num_chipselect = 2,
+	.activate_cs	= db1550_spi_cs_en,
+};
+
+static u64 spi_dmamask = DMA_BIT_MASK(32);
+
+static struct platform_device db1550_spi_dev = {
+	.dev	= {
+		.dma_mask		= &spi_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1550_spi_platdata,
+	},
+	.name		= "au1550-spi",
+	.id		= 0,	/* bus number */
+	.num_resources	= ARRAY_SIZE(au1550_psc0_res),
+	.resource	= au1550_psc0_res,
+};
+
+/**********************************************************************/
+
+static struct resource au1550_psc1_res[] = {
+	[0] = {
+		.start	= AU1550_PSC1_PHYS_ADDR,
+		.end	= AU1550_PSC1_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1550_PSC1_INT,
+		.end	= AU1550_PSC1_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1550_DSCR_CMD0_PSC1_TX,
+		.end	= AU1550_DSCR_CMD0_PSC1_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1550_DSCR_CMD0_PSC1_RX,
+		.end	= AU1550_DSCR_CMD0_PSC1_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1550_ac97_dev = {
+	.name		= "au1xpsc_ac97",
+	.id		= 1,	/* PSC ID */
+	.num_resources	= ARRAY_SIZE(au1550_psc1_res),
+	.resource	= au1550_psc1_res,
+};
+
+
+static struct resource au1550_psc2_res[] = {
+	[0] = {
+		.start	= AU1550_PSC2_PHYS_ADDR,
+		.end	= AU1550_PSC2_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1550_PSC2_INT,
+		.end	= AU1550_PSC2_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1550_DSCR_CMD0_PSC2_TX,
+		.end	= AU1550_DSCR_CMD0_PSC2_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1550_DSCR_CMD0_PSC2_RX,
+		.end	= AU1550_DSCR_CMD0_PSC2_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1550_i2c_dev = {
+	.name		= "au1xpsc_smbus",
+	.id		= 0,	/* bus number */
+	.num_resources	= ARRAY_SIZE(au1550_psc2_res),
+	.resource	= au1550_psc2_res,
+};
+
+/**********************************************************************/
+
+static struct resource au1550_psc3_res[] = {
+	[0] = {
+		.start	= AU1550_PSC3_PHYS_ADDR,
+		.end	= AU1550_PSC3_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AU1550_PSC3_INT,
+		.end	= AU1550_PSC3_INT,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= AU1550_DSCR_CMD0_PSC3_TX,
+		.end	= AU1550_DSCR_CMD0_PSC3_TX,
+		.flags	= IORESOURCE_DMA,
+	},
+	[3] = {
+		.start	= AU1550_DSCR_CMD0_PSC3_RX,
+		.end	= AU1550_DSCR_CMD0_PSC3_RX,
+		.flags	= IORESOURCE_DMA,
+	},
+};
+
+static struct platform_device db1550_i2s_dev = {
+	.name		= "au1xpsc_i2s",
+	.id		= 3,	/* PSC ID */
+	.num_resources	= ARRAY_SIZE(au1550_psc3_res),
+	.resource	= au1550_psc3_res,
+};
+
+/**********************************************************************/
+
+static struct platform_device db1550_stac_dev = {
+	.name		= "ac97-codec",
+	.id		= 1,	/* on PSC1 */
+};
+
+static struct platform_device db1550_ac97dma_dev = {
+	.name		= "au1xpsc-pcm",
+	.id		= 1,	/* on PSC3 */
+};
+
+static struct platform_device db1550_i2sdma_dev = {
+	.name		= "au1xpsc-pcm",
+	.id		= 3,	/* on PSC3 */
+};
+
+static struct platform_device db1550_sndac97_dev = {
+	.name		= "db1550-ac97",
+};
+
+static struct platform_device db1550_sndi2s_dev = {
+	.name		= "db1550-i2s",
+};
+
+/**********************************************************************/
+
+static int db1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+	if ((slot < 11) || (slot > 13) || pin == 0)
+		return -1;
+	if (slot == 11)
+		return (pin == 1) ? AU1550_PCI_INTC : 0xff;
+	if (slot == 12) {
+		switch (pin) {
+		case 1: return AU1550_PCI_INTB;
+		case 2: return AU1550_PCI_INTC;
+		case 3: return AU1550_PCI_INTD;
+		case 4: return AU1550_PCI_INTA;
+		}
+	}
+	if (slot == 13) {
+		switch (pin) {
+		case 1: return AU1550_PCI_INTA;
+		case 2: return AU1550_PCI_INTB;
+		case 3: return AU1550_PCI_INTC;
+		case 4: return AU1550_PCI_INTD;
+		}
+	}
+	return -1;
+}
+
+static int pb1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+	if ((slot < 12) || (slot > 13) || pin == 0)
+		return -1;
+	if (slot == 12) {
+		switch (pin) {
+		case 1: return AU1500_PCI_INTB;
+		case 2: return AU1500_PCI_INTC;
+		case 3: return AU1500_PCI_INTD;
+		case 4: return AU1500_PCI_INTA;
+		}
+	}
+	if (slot == 13) {
+		switch (pin) {
+		case 1: return AU1500_PCI_INTA;
+		case 2: return AU1500_PCI_INTB;
+		case 3: return AU1500_PCI_INTC;
+		case 4: return AU1500_PCI_INTD;
+		}
+	}
+	return -1;
+}
+
+static struct resource alchemy_pci_host_res[] = {
+	[0] = {
+		.start	= AU1500_PCI_PHYS_ADDR,
+		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct alchemy_pci_platdata db1550_pci_pd = {
+	.board_map_irq	= db1550_map_pci_irq,
+};
+
+static struct platform_device db1550_pci_host_dev = {
+	.dev.platform_data = &db1550_pci_pd,
+	.name		= "alchemy-pci",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
+	.resource	= alchemy_pci_host_res,
+};
+
+/**********************************************************************/
+
+static struct platform_device *db1550_devs[] __initdata = {
+	&db1550_i2c_dev,
+	&db1550_ac97_dev,
+	&db1550_spi_dev,
+	&db1550_i2s_dev,
+	&db1550_stac_dev,
+	&db1550_ac97dma_dev,
+	&db1550_i2sdma_dev,
+	&db1550_sndac97_dev,
+	&db1550_sndi2s_dev,
+};
+
+/* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
+int __init db1550_pci_setup(int id)
+{
+	if (id)
+		db1550_pci_pd.board_map_irq = pb1550_map_pci_irq;
+	return platform_device_register(&db1550_pci_host_dev);
+}
+
+static void __init db1550_devices(void)
+{
+	alchemy_gpio_direction_output(203, 0);	/* red led on */
+
+	irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_EDGE_BOTH);	 /* CD0# */
+	irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_EDGE_BOTH);	 /* CD1# */
+	irq_set_irq_type(AU1550_GPIO3_INT, IRQ_TYPE_LEVEL_LOW);	 /* CARD0# */
+	irq_set_irq_type(AU1550_GPIO5_INT, IRQ_TYPE_LEVEL_LOW);	 /* CARD1# */
+	irq_set_irq_type(AU1550_GPIO21_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG0# */
+	irq_set_irq_type(AU1550_GPIO22_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG1# */
+
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
+		AU1550_GPIO3_INT, AU1550_GPIO0_INT,
+		/*AU1550_GPIO21_INT*/0, 0, 0);
+
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004000000,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004000000,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004010000 - 1,
+		AU1550_GPIO5_INT, AU1550_GPIO1_INT,
+		/*AU1550_GPIO22_INT*/0, 0, 1);
+
+	platform_device_register(&db1550_nand_dev);
+
+	alchemy_gpio_direction_output(202, 0);	/* green led on */
+}
+
+static void __init pb1550_devices(void)
+{
+	irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1550_GPIO201_205_INT, IRQ_TYPE_LEVEL_HIGH);
+
+	/* enable both PCMCIA card irqs in the shared line */
+	alchemy_gpio2_enable_int(201);	/* socket 0 card irq */
+	alchemy_gpio2_enable_int(202);	/* socket 1 card irq */
+
+	/* Pb1550, like all others, also has statuschange irqs; however they're
+	* wired up on one of the Au1550's shared GPIO201_205 line, which also
+	* services the PCMCIA card interrupts.	So we ignore statuschange and
+	* use the GPIO201_205 exclusively for card interrupts, since a) pcmcia
+	* drivers are used to shared irqs and b) statuschange isn't really use-
+	* ful anyway.
+	*/
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
+		AU1550_GPIO201_205_INT, AU1550_GPIO0_INT, 0, 0, 0);
+
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008000000,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008000000,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008000000,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008010000 - 1,
+		AU1550_GPIO201_205_INT, AU1550_GPIO1_INT, 0, 0, 1);
+
+	pb1550_nand_setup();
+}
+
+int __init db1550_dev_setup(void)
+{
+	int swapped, id;
+	struct clk *c;
+
+	id = (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) != BCSR_WHOAMI_DB1550);
+
+	i2c_register_board_info(0, db1550_i2c_devs,
+				ARRAY_SIZE(db1550_i2c_devs));
+	spi_register_board_info(db1550_spi_devs,
+				ARRAY_SIZE(db1550_i2c_devs));
+
+	c = clk_get(NULL, "psc0_intclk");
+	if (!IS_ERR(c)) {
+		clk_set_rate(c, 50000000);
+		clk_prepare_enable(c);
+		clk_put(c);
+	}
+	c = clk_get(NULL, "psc2_intclk");
+	if (!IS_ERR(c)) {
+		clk_set_rate(c, db1550_spi_platdata.mainclk_hz);
+		clk_prepare_enable(c);
+		clk_put(c);
+	}
+
+	/* Audio PSC clock is supplied by codecs (PSC1, 3) FIXME: platdata!! */
+	__raw_writel(PSC_SEL_CLK_SERCLK,
+	    (void __iomem *)KSEG1ADDR(AU1550_PSC1_PHYS_ADDR) + PSC_SEL_OFFSET);
+	wmb();
+	__raw_writel(PSC_SEL_CLK_SERCLK,
+	    (void __iomem *)KSEG1ADDR(AU1550_PSC3_PHYS_ADDR) + PSC_SEL_OFFSET);
+	wmb();
+	/* SPI/I2C use internally supplied 50MHz source */
+	__raw_writel(PSC_SEL_CLK_INTCLK,
+	    (void __iomem *)KSEG1ADDR(AU1550_PSC0_PHYS_ADDR) + PSC_SEL_OFFSET);
+	wmb();
+	__raw_writel(PSC_SEL_CLK_INTCLK,
+	    (void __iomem *)KSEG1ADDR(AU1550_PSC2_PHYS_ADDR) + PSC_SEL_OFFSET);
+	wmb();
+
+	id ? pb1550_devices() : db1550_devices();
+
+	swapped = bcsr_read(BCSR_STATUS) &
+	       (id ? BCSR_STATUS_PB1550_SWAPBOOT : BCSR_STATUS_DB1000_SWAPBOOT);
+	db1x_register_norflash(128 << 20, 4, swapped);
+
+	return platform_add_devices(db1550_devs, ARRAY_SIZE(db1550_devs));
+}
diff --git a/kernel/arch/mips/alchemy/devboards/db1xxx.c b/kernel/arch/mips/alchemy/devboards/db1xxx.c
new file mode 100644
index 000000000..2d47f9511
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/db1xxx.c
@@ -0,0 +1,121 @@
+/*
+ * Alchemy DB/PB1xxx board support.
+ */
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+int __init db1000_board_setup(void);
+int __init db1000_dev_setup(void);
+int __init db1500_pci_setup(void);
+int __init db1200_board_setup(void);
+int __init db1200_dev_setup(void);
+int __init db1300_board_setup(void);
+int __init db1300_dev_setup(void);
+int __init db1550_board_setup(void);
+int __init db1550_dev_setup(void);
+int __init db1550_pci_setup(int);
+
+static const char *board_type_str(void)
+{
+	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+	case BCSR_WHOAMI_DB1000:
+		return "DB1000";
+	case BCSR_WHOAMI_DB1500:
+		return "DB1500";
+	case BCSR_WHOAMI_DB1100:
+		return "DB1100";
+	case BCSR_WHOAMI_PB1500:
+	case BCSR_WHOAMI_PB1500R2:
+		return "PB1500";
+	case BCSR_WHOAMI_PB1100:
+		return "PB1100";
+	case BCSR_WHOAMI_PB1200_DDR1:
+	case BCSR_WHOAMI_PB1200_DDR2:
+		return "PB1200";
+	case BCSR_WHOAMI_DB1200:
+		return "DB1200";
+	case BCSR_WHOAMI_DB1300:
+		return "DB1300";
+	case BCSR_WHOAMI_DB1550:
+		return "DB1550";
+	case BCSR_WHOAMI_PB1550_SDR:
+	case BCSR_WHOAMI_PB1550_DDR:
+		return "PB1550";
+	default:
+		return "(unknown)";
+	}
+}
+
+const char *get_system_type(void)
+{
+	return board_type_str();
+}
+
+void __init board_setup(void)
+{
+	int ret;
+
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+	case ALCHEMY_CPU_AU1100:
+		ret = db1000_board_setup();
+		break;
+	case ALCHEMY_CPU_AU1550:
+		ret = db1550_board_setup();
+		break;
+	case ALCHEMY_CPU_AU1200:
+		ret = db1200_board_setup();
+		break;
+	case ALCHEMY_CPU_AU1300:
+		ret = db1300_board_setup();
+		break;
+	default:
+		pr_err("unsupported CPU on board\n");
+		ret = -ENODEV;
+	}
+	if (ret)
+		panic("cannot initialize board support");
+}
+
+static int __init db1xxx_arch_init(void)
+{
+	int id = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+	if (id == BCSR_WHOAMI_DB1550)
+		return db1550_pci_setup(0);
+	else if ((id == BCSR_WHOAMI_PB1550_SDR) ||
+		 (id == BCSR_WHOAMI_PB1550_DDR))
+		return db1550_pci_setup(1);
+	else if ((id == BCSR_WHOAMI_DB1500) || (id == BCSR_WHOAMI_PB1500) ||
+		 (id == BCSR_WHOAMI_PB1500R2))
+		return db1500_pci_setup();
+
+	return 0;
+}
+arch_initcall(db1xxx_arch_init);
+
+static int __init db1xxx_dev_init(void)
+{
+	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+	case BCSR_WHOAMI_DB1000:
+	case BCSR_WHOAMI_DB1500:
+	case BCSR_WHOAMI_DB1100:
+	case BCSR_WHOAMI_PB1500:
+	case BCSR_WHOAMI_PB1500R2:
+	case BCSR_WHOAMI_PB1100:
+		return db1000_dev_setup();
+	case BCSR_WHOAMI_PB1200_DDR1:
+	case BCSR_WHOAMI_PB1200_DDR2:
+	case BCSR_WHOAMI_DB1200:
+		return db1200_dev_setup();
+	case BCSR_WHOAMI_DB1300:
+		return db1300_dev_setup();
+	case BCSR_WHOAMI_DB1550:
+	case BCSR_WHOAMI_PB1550_SDR:
+	case BCSR_WHOAMI_PB1550_DDR:
+		return db1550_dev_setup();
+	}
+	return 0;
+}
+device_initcall(db1xxx_dev_init);
diff --git a/kernel/arch/mips/alchemy/devboards/platform.c b/kernel/arch/mips/alchemy/devboards/platform.c
new file mode 100644
index 000000000..be139a019
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/platform.c
@@ -0,0 +1,263 @@
+/*
+ * devoard misc stuff.
+ */
+
+#include <linux/init.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/physmap.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+
+#include <asm/bootinfo.h>
+#include <asm/idle.h>
+#include <asm/reboot.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+#include <prom.h>
+
+void __init prom_init(void)
+{
+	unsigned char *memsize_str;
+	unsigned long memsize;
+
+	prom_argc = (int)fw_arg0;
+	prom_argv = (char **)fw_arg1;
+	prom_envp = (char **)fw_arg2;
+
+	prom_init_cmdline();
+	memsize_str = prom_getenv("memsize");
+	if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
+		memsize = 64 << 20; /* all devboards have at least 64MB RAM */
+
+	add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
+
+void prom_putchar(unsigned char c)
+{
+	if (alchemy_get_cputype() == ALCHEMY_CPU_AU1300)
+		alchemy_uart_putchar(AU1300_UART2_PHYS_ADDR, c);
+	else
+		alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
+}
+
+
+static struct platform_device db1x00_rtc_dev = {
+	.name	= "rtc-au1xxx",
+	.id	= -1,
+};
+
+
+static void db1x_power_off(void)
+{
+	bcsr_write(BCSR_RESETS, 0);
+	bcsr_write(BCSR_SYSTEM, BCSR_SYSTEM_PWROFF | BCSR_SYSTEM_RESET);
+	while (1)		/* sit and spin */
+		cpu_wait();
+}
+
+static void db1x_reset(char *c)
+{
+	bcsr_write(BCSR_RESETS, 0);
+	bcsr_write(BCSR_SYSTEM, 0);
+}
+
+static int __init db1x_late_setup(void)
+{
+	if (!pm_power_off)
+		pm_power_off = db1x_power_off;
+	if (!_machine_halt)
+		_machine_halt = db1x_power_off;
+	if (!_machine_restart)
+		_machine_restart = db1x_reset;
+
+	platform_device_register(&db1x00_rtc_dev);
+
+	return 0;
+}
+device_initcall(db1x_late_setup);
+
+/* register a pcmcia socket */
+int __init db1x_register_pcmcia_socket(phys_addr_t pcmcia_attr_start,
+				       phys_addr_t pcmcia_attr_end,
+				       phys_addr_t pcmcia_mem_start,
+				       phys_addr_t pcmcia_mem_end,
+				       phys_addr_t pcmcia_io_start,
+				       phys_addr_t pcmcia_io_end,
+				       int card_irq,
+				       int cd_irq,
+				       int stschg_irq,
+				       int eject_irq,
+				       int id)
+{
+	int cnt, i, ret;
+	struct resource *sr;
+	struct platform_device *pd;
+
+	cnt = 5;
+	if (eject_irq)
+		cnt++;
+	if (stschg_irq)
+		cnt++;
+
+	sr = kzalloc(sizeof(struct resource) * cnt, GFP_KERNEL);
+	if (!sr)
+		return -ENOMEM;
+
+	pd = platform_device_alloc("db1xxx_pcmcia", id);
+	if (!pd) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	sr[0].name	= "pcmcia-attr";
+	sr[0].flags	= IORESOURCE_MEM;
+	sr[0].start	= pcmcia_attr_start;
+	sr[0].end	= pcmcia_attr_end;
+
+	sr[1].name	= "pcmcia-mem";
+	sr[1].flags	= IORESOURCE_MEM;
+	sr[1].start	= pcmcia_mem_start;
+	sr[1].end	= pcmcia_mem_end;
+
+	sr[2].name	= "pcmcia-io";
+	sr[2].flags	= IORESOURCE_MEM;
+	sr[2].start	= pcmcia_io_start;
+	sr[2].end	= pcmcia_io_end;
+
+	sr[3].name	= "insert";
+	sr[3].flags	= IORESOURCE_IRQ;
+	sr[3].start = sr[3].end = cd_irq;
+
+	sr[4].name	= "card";
+	sr[4].flags	= IORESOURCE_IRQ;
+	sr[4].start = sr[4].end = card_irq;
+
+	i = 5;
+	if (stschg_irq) {
+		sr[i].name	= "stschg";
+		sr[i].flags	= IORESOURCE_IRQ;
+		sr[i].start = sr[i].end = stschg_irq;
+		i++;
+	}
+	if (eject_irq) {
+		sr[i].name	= "eject";
+		sr[i].flags	= IORESOURCE_IRQ;
+		sr[i].start = sr[i].end = eject_irq;
+	}
+
+	pd->resource = sr;
+	pd->num_resources = cnt;
+
+	ret = platform_device_add(pd);
+	if (!ret)
+		return 0;
+
+	platform_device_put(pd);
+out:
+	kfree(sr);
+	return ret;
+}
+
+#define YAMON_SIZE	0x00100000
+#define YAMON_ENV_SIZE	0x00040000
+
+int __init db1x_register_norflash(unsigned long size, int width,
+				  int swapped)
+{
+	struct physmap_flash_data *pfd;
+	struct platform_device *pd;
+	struct mtd_partition *parts;
+	struct resource *res;
+	int ret, i;
+
+	if (size < (8 * 1024 * 1024))
+		return -EINVAL;
+
+	ret = -ENOMEM;
+	parts = kzalloc(sizeof(struct mtd_partition) * 5, GFP_KERNEL);
+	if (!parts)
+		goto out;
+
+	res = kzalloc(sizeof(struct resource), GFP_KERNEL);
+	if (!res)
+		goto out1;
+
+	pfd = kzalloc(sizeof(struct physmap_flash_data), GFP_KERNEL);
+	if (!pfd)
+		goto out2;
+
+	pd = platform_device_alloc("physmap-flash", 0);
+	if (!pd)
+		goto out3;
+
+	/* NOR flash ends at 0x20000000, regardless of size */
+	res->start = 0x20000000 - size;
+	res->end = 0x20000000 - 1;
+	res->flags = IORESOURCE_MEM;
+
+	/* partition setup.  Most Develboards have a switch which allows
+	 * to swap the physical locations of the 2 NOR flash banks.
+	 */
+	i = 0;
+	if (!swapped) {
+		/* first NOR chip */
+		parts[i].offset = 0;
+		parts[i].name = "User FS";
+		parts[i].size = size / 2;
+		i++;
+	}
+
+	parts[i].offset = MTDPART_OFS_APPEND;
+	parts[i].name = "User FS 2";
+	parts[i].size = (size / 2) - (0x20000000 - 0x1fc00000);
+	i++;
+
+	parts[i].offset = MTDPART_OFS_APPEND;
+	parts[i].name = "YAMON";
+	parts[i].size = YAMON_SIZE;
+	parts[i].mask_flags = MTD_WRITEABLE;
+	i++;
+
+	parts[i].offset = MTDPART_OFS_APPEND;
+	parts[i].name = "raw kernel";
+	parts[i].size = 0x00400000 - YAMON_SIZE - YAMON_ENV_SIZE;
+	i++;
+
+	parts[i].offset = MTDPART_OFS_APPEND;
+	parts[i].name = "YAMON Env";
+	parts[i].size = YAMON_ENV_SIZE;
+	parts[i].mask_flags = MTD_WRITEABLE;
+	i++;
+
+	if (swapped) {
+		parts[i].offset = MTDPART_OFS_APPEND;
+		parts[i].name = "User FS";
+		parts[i].size = size / 2;
+		i++;
+	}
+
+	pfd->width = width;
+	pfd->parts = parts;
+	pfd->nr_parts = 5;
+
+	pd->dev.platform_data = pfd;
+	pd->resource = res;
+	pd->num_resources = 1;
+
+	ret = platform_device_add(pd);
+	if (!ret)
+		return ret;
+
+	platform_device_put(pd);
+out3:
+	kfree(pfd);
+out2:
+	kfree(res);
+out1:
+	kfree(parts);
+out:
+	return ret;
+}
diff --git a/kernel/arch/mips/alchemy/devboards/platform.h b/kernel/arch/mips/alchemy/devboards/platform.h
new file mode 100644
index 000000000..5ac055d2c
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/platform.h
@@ -0,0 +1,21 @@
+#ifndef _DEVBOARD_PLATFORM_H_
+#define _DEVBOARD_PLATFORM_H_
+
+#include <linux/init.h>
+
+int __init db1x_register_pcmcia_socket(phys_addr_t pcmcia_attr_start,
+				       phys_addr_t pcmcia_attr_len,
+				       phys_addr_t pcmcia_mem_start,
+				       phys_addr_t pcmcia_mem_end,
+				       phys_addr_t pcmcia_io_start,
+				       phys_addr_t pcmcia_io_end,
+				       int card_irq,
+				       int cd_irq,
+				       int stschg_irq,
+				       int eject_irq,
+				       int id);
+
+int __init db1x_register_norflash(unsigned long size, int width,
+				  int swapped);
+
+#endif
diff --git a/kernel/arch/mips/alchemy/devboards/pm.c b/kernel/arch/mips/alchemy/devboards/pm.c
new file mode 100644
index 000000000..bfeb8f3c0
--- /dev/null
+++ b/kernel/arch/mips/alchemy/devboards/pm.c
@@ -0,0 +1,253 @@
+/*
+ * Alchemy Development Board example suspend userspace interface.
+ *
+ * (c) 2008 Manuel Lauss <mano@roarinelk.homelinux.net>
+ */
+
+#include <linux/init.h>
+#include <linux/kobject.h>
+#include <linux/suspend.h>
+#include <linux/sysfs.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+/*
+ * Generic suspend userspace interface for Alchemy development boards.
+ * This code exports a few sysfs nodes under /sys/power/db1x/ which
+ * can be used by userspace to en/disable all au1x-provided wakeup
+ * sources and configure the timeout after which the the TOYMATCH2 irq
+ * is to trigger a wakeup.
+ */
+
+
+static unsigned long db1x_pm_sleep_secs;
+static unsigned long db1x_pm_wakemsk;
+static unsigned long db1x_pm_last_wakesrc;
+
+static int db1x_pm_enter(suspend_state_t state)
+{
+	unsigned short bcsrs[16];
+	int i, j, hasint;
+
+	/* save CPLD regs */
+	hasint = bcsr_read(BCSR_WHOAMI);
+	hasint = BCSR_WHOAMI_BOARD(hasint) >= BCSR_WHOAMI_DB1200;
+	j = (hasint) ? BCSR_MASKSET : BCSR_SYSTEM;
+
+	for (i = BCSR_STATUS; i <= j; i++)
+		bcsrs[i] = bcsr_read(i);
+
+	/* shut off hexleds */
+	bcsr_write(BCSR_HEXCLEAR, 3);
+
+	/* enable GPIO based wakeup */
+	alchemy_gpio1_input_enable();
+
+	/* clear and setup wake cause and source */
+	alchemy_wrsys(0, AU1000_SYS_WAKEMSK);
+	alchemy_wrsys(0, AU1000_SYS_WAKESRC);
+
+	alchemy_wrsys(db1x_pm_wakemsk, AU1000_SYS_WAKEMSK);
+
+	/* setup 1Hz-timer-based wakeup: wait for reg access */
+	while (alchemy_rdsys(AU1000_SYS_CNTRCTRL) & SYS_CNTRL_M20)
+		asm volatile ("nop");
+
+	alchemy_wrsys(alchemy_rdsys(AU1000_SYS_TOYREAD) + db1x_pm_sleep_secs,
+		      AU1000_SYS_TOYMATCH2);
+
+	/* wait for value to really hit the register */
+	while (alchemy_rdsys(AU1000_SYS_CNTRCTRL) & SYS_CNTRL_M20)
+		asm volatile ("nop");
+
+	/* ...and now the sandman can come! */
+	au_sleep();
+
+
+	/* restore CPLD regs */
+	for (i = BCSR_STATUS; i <= BCSR_SYSTEM; i++)
+		bcsr_write(i, bcsrs[i]);
+
+	/* restore CPLD int registers */
+	if (hasint) {
+		bcsr_write(BCSR_INTCLR, 0xffff);
+		bcsr_write(BCSR_MASKCLR, 0xffff);
+		bcsr_write(BCSR_INTSTAT, 0xffff);
+		bcsr_write(BCSR_INTSET, bcsrs[BCSR_INTSET]);
+		bcsr_write(BCSR_MASKSET, bcsrs[BCSR_MASKSET]);
+	}
+
+	/* light up hexleds */
+	bcsr_write(BCSR_HEXCLEAR, 0);
+
+	return 0;
+}
+
+static int db1x_pm_begin(suspend_state_t state)
+{
+	if (!db1x_pm_wakemsk) {
+		printk(KERN_ERR "db1x: no wakeup source activated!\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void db1x_pm_end(void)
+{
+	/* read and store wakeup source, the clear the register. To
+	 * be able to clear it, WAKEMSK must be cleared first.
+	 */
+	db1x_pm_last_wakesrc = alchemy_rdsys(AU1000_SYS_WAKESRC);
+
+	alchemy_wrsys(0, AU1000_SYS_WAKEMSK);
+	alchemy_wrsys(0, AU1000_SYS_WAKESRC);
+}
+
+static const struct platform_suspend_ops db1x_pm_ops = {
+	.valid		= suspend_valid_only_mem,
+	.begin		= db1x_pm_begin,
+	.enter		= db1x_pm_enter,
+	.end		= db1x_pm_end,
+};
+
+#define ATTRCMP(x) (0 == strcmp(attr->attr.name, #x))
+
+static ssize_t db1x_pmattr_show(struct kobject *kobj,
+				struct kobj_attribute *attr,
+				char *buf)
+{
+	int idx;
+
+	if (ATTRCMP(timer_timeout))
+		return sprintf(buf, "%lu\n", db1x_pm_sleep_secs);
+
+	else if (ATTRCMP(timer))
+		return sprintf(buf, "%u\n",
+				!!(db1x_pm_wakemsk & SYS_WAKEMSK_M2));
+
+	else if (ATTRCMP(wakesrc))
+		return sprintf(buf, "%lu\n", db1x_pm_last_wakesrc);
+
+	else if (ATTRCMP(gpio0) || ATTRCMP(gpio1) || ATTRCMP(gpio2) ||
+		 ATTRCMP(gpio3) || ATTRCMP(gpio4) || ATTRCMP(gpio5) ||
+		 ATTRCMP(gpio6) || ATTRCMP(gpio7)) {
+		idx = (attr->attr.name)[4] - '0';
+		return sprintf(buf, "%d\n",
+			!!(db1x_pm_wakemsk & SYS_WAKEMSK_GPIO(idx)));
+
+	} else if (ATTRCMP(wakemsk)) {
+		return sprintf(buf, "%08lx\n", db1x_pm_wakemsk);
+	}
+
+	return -ENOENT;
+}
+
+static ssize_t db1x_pmattr_store(struct kobject *kobj,
+				 struct kobj_attribute *attr,
+				 const char *instr,
+				 size_t bytes)
+{
+	unsigned long l;
+	int tmp;
+
+	if (ATTRCMP(timer_timeout)) {
+		tmp = kstrtoul(instr, 0, &l);
+		if (tmp)
+			return tmp;
+
+		db1x_pm_sleep_secs = l;
+
+	} else if (ATTRCMP(timer)) {
+		if (instr[0] != '0')
+			db1x_pm_wakemsk |= SYS_WAKEMSK_M2;
+		else
+			db1x_pm_wakemsk &= ~SYS_WAKEMSK_M2;
+
+	} else if (ATTRCMP(gpio0) || ATTRCMP(gpio1) || ATTRCMP(gpio2) ||
+		   ATTRCMP(gpio3) || ATTRCMP(gpio4) || ATTRCMP(gpio5) ||
+		   ATTRCMP(gpio6) || ATTRCMP(gpio7)) {
+		tmp = (attr->attr.name)[4] - '0';
+		if (instr[0] != '0') {
+			db1x_pm_wakemsk |= SYS_WAKEMSK_GPIO(tmp);
+		} else {
+			db1x_pm_wakemsk &= ~SYS_WAKEMSK_GPIO(tmp);
+		}
+
+	} else if (ATTRCMP(wakemsk)) {
+		tmp = kstrtoul(instr, 0, &l);
+		if (tmp)
+			return tmp;
+
+		db1x_pm_wakemsk = l & 0x0000003f;
+
+	} else
+		bytes = -ENOENT;
+
+	return bytes;
+}
+
+#define ATTR(x)							\
+	static struct kobj_attribute x##_attribute =		\
+		__ATTR(x, 0664, db1x_pmattr_show,		\
+				db1x_pmattr_store);
+
+ATTR(gpio0)		/* GPIO-based wakeup enable */
+ATTR(gpio1)
+ATTR(gpio2)
+ATTR(gpio3)
+ATTR(gpio4)
+ATTR(gpio5)
+ATTR(gpio6)
+ATTR(gpio7)
+ATTR(timer)		/* TOYMATCH2-based wakeup enable */
+ATTR(timer_timeout)	/* timer-based wakeup timeout value, in seconds */
+ATTR(wakesrc)		/* contents of SYS_WAKESRC after last wakeup */
+ATTR(wakemsk)		/* direct access to SYS_WAKEMSK */
+
+#define ATTR_LIST(x)	& x ## _attribute.attr
+static struct attribute *db1x_pmattrs[] = {
+	ATTR_LIST(gpio0),
+	ATTR_LIST(gpio1),
+	ATTR_LIST(gpio2),
+	ATTR_LIST(gpio3),
+	ATTR_LIST(gpio4),
+	ATTR_LIST(gpio5),
+	ATTR_LIST(gpio6),
+	ATTR_LIST(gpio7),
+	ATTR_LIST(timer),
+	ATTR_LIST(timer_timeout),
+	ATTR_LIST(wakesrc),
+	ATTR_LIST(wakemsk),
+	NULL,		/* terminator */
+};
+
+static struct attribute_group db1x_pmattr_group = {
+	.name	= "db1x",
+	.attrs	= db1x_pmattrs,
+};
+
+/*
+ * Initialize suspend interface
+ */
+static int __init pm_init(void)
+{
+	/* init TOY to tick at 1Hz if not already done. No need to wait
+	 * for confirmation since there's plenty of time from here to
+	 * the next suspend cycle.
+	 */
+	if (alchemy_rdsys(AU1000_SYS_TOYTRIM) != 32767)
+		alchemy_wrsys(32767, AU1000_SYS_TOYTRIM);
+
+	db1x_pm_last_wakesrc = alchemy_rdsys(AU1000_SYS_WAKESRC);
+
+	alchemy_wrsys(0, AU1000_SYS_WAKESRC);
+	alchemy_wrsys(0, AU1000_SYS_WAKEMSK);
+
+	suspend_set_ops(&db1x_pm_ops);
+
+	return sysfs_create_group(power_kobj, &db1x_pmattr_group);
+}
+
+late_initcall(pm_init);