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>

1 files changed, 323 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-orion5x/ts409-setup.c b/kernel/arch/arm/mach-orion5x/ts409-setup.c
new file mode 100644
index 000000000..cf2ab531c
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/ts409-setup.c
@@ -0,0 +1,323 @@
+/*
+ * QNAP TS-409 Board Setup
+ *
+ * Maintainer: Sylver Bruneau <sylver.bruneau@gmail.com>
+ *
+ * Copyright (C) 2008  Sylver Bruneau <sylver.bruneau@gmail.com>
+ * Copyright (C) 2008  Martin Michlmayr <tbm@cyrius.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.
+ */
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/leds.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/serial_reg.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <mach/orion5x.h>
+#include "common.h"
+#include "mpp.h"
+#include "tsx09-common.h"
+
+/*****************************************************************************
+ * QNAP TS-409 Info
+ ****************************************************************************/
+
+/*
+ * QNAP TS-409 hardware :
+ * - Marvell 88F5281-D0
+ * - Marvell 88SX7042 SATA controller (PCIe)
+ * - Marvell 88E1118 Gigabit Ethernet PHY
+ * - RTC S35390A (@0x30) on I2C bus
+ * - 8MB NOR flash
+ * - 256MB of DDR-2 RAM
+ */
+
+/*
+ * 8MB NOR flash Device bus boot chip select
+ */
+
+#define QNAP_TS409_NOR_BOOT_BASE 0xff800000
+#define QNAP_TS409_NOR_BOOT_SIZE SZ_8M
+
+/****************************************************************************
+ * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
+ *     partitions on the device because we want to keep compatibility with
+ *     existing QNAP firmware.
+ *
+ * Layout as used by QNAP:
+ *  [2] 0x00000000-0x00200000 : "Kernel"
+ *  [3] 0x00200000-0x00600000 : "RootFS1"
+ *  [4] 0x00600000-0x00700000 : "RootFS2"
+ *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
+ *  [5] 0x00760000-0x00780000 : "U-Boot Config"
+ *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
+ ***************************************************************************/
+static struct mtd_partition qnap_ts409_partitions[] = {
+	{
+		.name		= "U-Boot",
+		.size		= 0x00080000,
+		.offset		= 0x00780000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "Kernel",
+		.size		= 0x00200000,
+		.offset		= 0,
+	}, {
+		.name		= "RootFS1",
+		.size		= 0x00400000,
+		.offset		= 0x00200000,
+	}, {
+		.name		= "RootFS2",
+		.size		= 0x00100000,
+		.offset		= 0x00600000,
+	}, {
+		.name		= "U-Boot Config",
+		.size		= 0x00020000,
+		.offset		= 0x00760000,
+	}, {
+		.name		= "NAS Config",
+		.size		= 0x00060000,
+		.offset		= 0x00700000,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+};
+
+static struct physmap_flash_data qnap_ts409_nor_flash_data = {
+	.width		= 1,
+	.parts		= qnap_ts409_partitions,
+	.nr_parts	= ARRAY_SIZE(qnap_ts409_partitions)
+};
+
+static struct resource qnap_ts409_nor_flash_resource = {
+	.flags	= IORESOURCE_MEM,
+	.start	= QNAP_TS409_NOR_BOOT_BASE,
+	.end	= QNAP_TS409_NOR_BOOT_BASE + QNAP_TS409_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device qnap_ts409_nor_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= { .platform_data = &qnap_ts409_nor_flash_data, },
+	.num_resources	= 1,
+	.resource	= &qnap_ts409_nor_flash_resource,
+};
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+static int __init qnap_ts409_pci_map_irq(const struct pci_dev *dev, u8 slot,
+	u8 pin)
+{
+	int irq;
+
+	/*
+	 * Check for devices with hard-wired IRQs.
+	 */
+	irq = orion5x_pci_map_irq(dev, slot, pin);
+	if (irq != -1)
+		return irq;
+
+	/*
+	 * PCI isn't used on the TS-409
+	 */
+	return -1;
+}
+
+static struct hw_pci qnap_ts409_pci __initdata = {
+	.nr_controllers	= 2,
+	.setup		= orion5x_pci_sys_setup,
+	.scan		= orion5x_pci_sys_scan_bus,
+	.map_irq	= qnap_ts409_pci_map_irq,
+};
+
+static int __init qnap_ts409_pci_init(void)
+{
+	if (machine_is_ts409())
+		pci_common_init(&qnap_ts409_pci);
+
+	return 0;
+}
+
+subsys_initcall(qnap_ts409_pci_init);
+
+/*****************************************************************************
+ * RTC S35390A on I2C bus
+ ****************************************************************************/
+
+#define TS409_RTC_GPIO	10
+
+static struct i2c_board_info __initdata qnap_ts409_i2c_rtc = {
+	I2C_BOARD_INFO("s35390a", 0x30),
+};
+
+/*****************************************************************************
+ * LEDs attached to GPIO
+ ****************************************************************************/
+
+static struct gpio_led ts409_led_pins[] = {
+	{
+		.name		= "ts409:red:sata1",
+		.gpio		= 4,
+		.active_low	= 1,
+	}, {
+		.name		= "ts409:red:sata2",
+		.gpio		= 5,
+		.active_low	= 1,
+	}, {
+		.name		= "ts409:red:sata3",
+		.gpio		= 6,
+		.active_low	= 1,
+	}, {
+		.name		= "ts409:red:sata4",
+		.gpio		= 7,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_led_platform_data ts409_led_data = {
+	.leds		= ts409_led_pins,
+	.num_leds	= ARRAY_SIZE(ts409_led_pins),
+};
+
+static struct platform_device ts409_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &ts409_led_data,
+	},
+};
+
+/****************************************************************************
+ * GPIO Attached Keys
+ *     Power button is attached to the PIC microcontroller
+ ****************************************************************************/
+
+#define QNAP_TS409_GPIO_KEY_RESET	14
+#define QNAP_TS409_GPIO_KEY_MEDIA	15
+
+static struct gpio_keys_button qnap_ts409_buttons[] = {
+	{
+		.code		= KEY_RESTART,
+		.gpio		= QNAP_TS409_GPIO_KEY_RESET,
+		.desc		= "Reset Button",
+		.active_low	= 1,
+	}, {
+		.code		= KEY_COPY,
+		.gpio		= QNAP_TS409_GPIO_KEY_MEDIA,
+		.desc		= "USB Copy Button",
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_platform_data qnap_ts409_button_data = {
+	.buttons	= qnap_ts409_buttons,
+	.nbuttons	= ARRAY_SIZE(qnap_ts409_buttons),
+};
+
+static struct platform_device qnap_ts409_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= {
+		.platform_data	= &qnap_ts409_button_data,
+	},
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+static unsigned int ts409_mpp_modes[] __initdata = {
+	MPP0_UNUSED,
+	MPP1_UNUSED,
+	MPP2_UNUSED,
+	MPP3_UNUSED,
+	MPP4_GPIO,		/* HDD 1 status */
+	MPP5_GPIO,		/* HDD 2 status */
+	MPP6_GPIO,		/* HDD 3 status */
+	MPP7_GPIO,		/* HDD 4 status */
+	MPP8_UNUSED,
+	MPP9_UNUSED,
+	MPP10_GPIO,		/* RTC int */
+	MPP11_UNUSED,
+	MPP12_UNUSED,
+	MPP13_UNUSED,
+	MPP14_GPIO,		/* SW_RST */
+	MPP15_GPIO,		/* USB copy button */
+	MPP16_UART,		/* UART1 RXD */
+	MPP17_UART,		/* UART1 TXD */
+	MPP18_UNUSED,
+	MPP19_UNUSED,
+	0,
+};
+
+static void __init qnap_ts409_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion5x_init();
+
+	orion5x_mpp_conf(ts409_mpp_modes);
+
+	/*
+	 * Configure peripherals.
+	 */
+	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
+				    ORION_MBUS_DEVBUS_BOOT_ATTR,
+				    QNAP_TS409_NOR_BOOT_BASE,
+				    QNAP_TS409_NOR_BOOT_SIZE);
+	platform_device_register(&qnap_ts409_nor_flash);
+
+	orion5x_ehci0_init();
+	qnap_tsx09_find_mac_addr(QNAP_TS409_NOR_BOOT_BASE +
+				 qnap_ts409_partitions[5].offset,
+				 qnap_ts409_partitions[5].size);
+	orion5x_eth_init(&qnap_tsx09_eth_data);
+	orion5x_i2c_init();
+	orion5x_uart0_init();
+	orion5x_uart1_init();
+
+	platform_device_register(&qnap_ts409_button_device);
+
+	/* Get RTC IRQ and register the chip */
+	if (gpio_request(TS409_RTC_GPIO, "rtc") == 0) {
+		if (gpio_direction_input(TS409_RTC_GPIO) == 0)
+			qnap_ts409_i2c_rtc.irq = gpio_to_irq(TS409_RTC_GPIO);
+		else
+			gpio_free(TS409_RTC_GPIO);
+	}
+	if (qnap_ts409_i2c_rtc.irq == 0)
+		pr_warn("qnap_ts409_init: failed to get RTC IRQ\n");
+	i2c_register_board_info(0, &qnap_ts409_i2c_rtc, 1);
+	platform_device_register(&ts409_leds);
+
+	/* register tsx09 specific power-off method */
+	pm_power_off = qnap_tsx09_power_off;
+}
+
+MACHINE_START(TS409, "QNAP TS-409")
+	/* Maintainer:  Sylver Bruneau <sylver.bruneau@gmail.com> */
+	.atag_offset	= 0x100,
+	.init_machine	= qnap_ts409_init,
+	.map_io		= orion5x_map_io,
+	.init_early	= orion5x_init_early,
+	.init_irq	= orion5x_init_irq,
+	.init_time	= orion5x_timer_init,
+	.fixup		= tag_fixup_mem32,
+	.restart	= orion5x_restart,
+MACHINE_END