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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/mach-ixp4xx/gtwx5715-setup.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
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>
Diffstat (limited to 'kernel/arch/arm/mach-ixp4xx/gtwx5715-setup.c')
-rw-r--r--kernel/arch/arm/mach-ixp4xx/gtwx5715-setup.c179
1 files changed, 179 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/kernel/arch/arm/mach-ixp4xx/gtwx5715-setup.c
new file mode 100644
index 000000000..16a12994f
--- /dev/null
+++ b/kernel/arch/arm/mach-ixp4xx/gtwx5715-setup.c
@@ -0,0 +1,179 @@
+/*
+ * arch/arm/mach-ixp4xx/gtwx5715-setup.c
+ *
+ * Gemtek GTWX5715 (Linksys WRV54G) board setup
+ *
+ * Copyright (C) 2004 George T. Joseph
+ * Derived from Coyote
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+/* GPIO 5,6,7 and 12 are hard wired to the Kendin KS8995M Switch
+ and operate as an SPI type interface. The details of the interface
+ are available on Kendin/Micrel's web site. */
+
+#define GTWX5715_KSSPI_SELECT 5
+#define GTWX5715_KSSPI_TXD 6
+#define GTWX5715_KSSPI_CLOCK 7
+#define GTWX5715_KSSPI_RXD 12
+
+/* The "reset" button is wired to GPIO 3.
+ The GPIO is brought "low" when the button is pushed. */
+
+#define GTWX5715_BUTTON_GPIO 3
+
+/* Board Label Front Label
+ LED1 Power
+ LED2 Wireless-G
+ LED3 not populated but could be
+ LED4 Internet
+ LED5 - LED8 Controlled by KS8995M Switch
+ LED9 DMZ */
+
+#define GTWX5715_LED1_GPIO 2
+#define GTWX5715_LED2_GPIO 9
+#define GTWX5715_LED3_GPIO 8
+#define GTWX5715_LED4_GPIO 1
+#define GTWX5715_LED9_GPIO 4
+
+/*
+ * Xscale UART registers are 32 bits wide with only the least
+ * significant 8 bits having any meaning. From a configuration
+ * perspective, this means 2 things...
+ *
+ * Setting .regshift = 2 so that the standard 16550 registers
+ * line up on every 4th byte.
+ *
+ * Shifting the register start virtual address +3 bytes when
+ * compiled big-endian. Since register writes are done on a
+ * single byte basis, if the shift isn't done the driver will
+ * write the value into the most significant byte of the register,
+ * which is ignored, instead of the least significant.
+ */
+
+#ifdef __ARMEB__
+#define REG_OFFSET 3
+#else
+#define REG_OFFSET 0
+#endif
+
+/*
+ * Only the second or "console" uart is connected on the gtwx5715.
+ */
+
+static struct resource gtwx5715_uart_resources[] = {
+ {
+ .start = IXP4XX_UART2_BASE_PHYS,
+ .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_IXP4XX_UART2,
+ .end = IRQ_IXP4XX_UART2,
+ .flags = IORESOURCE_IRQ,
+ },
+ { },
+};
+
+
+static struct plat_serial8250_port gtwx5715_uart_platform_data[] = {
+ {
+ .mapbase = IXP4XX_UART2_BASE_PHYS,
+ .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+ .irq = IRQ_IXP4XX_UART2,
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ .uartclk = IXP4XX_UART_XTAL,
+ },
+ { },
+};
+
+static struct platform_device gtwx5715_uart_device = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = gtwx5715_uart_platform_data,
+ },
+ .num_resources = 2,
+ .resource = gtwx5715_uart_resources,
+};
+
+static struct flash_platform_data gtwx5715_flash_data = {
+ .map_name = "cfi_probe",
+ .width = 2,
+};
+
+static struct resource gtwx5715_flash_resource = {
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device gtwx5715_flash = {
+ .name = "IXP4XX-Flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &gtwx5715_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &gtwx5715_flash_resource,
+};
+
+static struct platform_device *gtwx5715_devices[] __initdata = {
+ &gtwx5715_uart_device,
+ &gtwx5715_flash,
+};
+
+static void __init gtwx5715_init(void)
+{
+ ixp4xx_sys_init();
+
+ gtwx5715_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+ gtwx5715_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1;
+
+ platform_add_devices(gtwx5715_devices, ARRAY_SIZE(gtwx5715_devices));
+}
+
+
+MACHINE_START(GTWX5715, "Gemtek GTWX5715 (Linksys WRV54G)")
+ /* Maintainer: George Joseph */
+ .map_io = ixp4xx_map_io,
+ .init_early = ixp4xx_init_early,
+ .init_irq = ixp4xx_init_irq,
+ .init_time = ixp4xx_timer_init,
+ .atag_offset = 0x100,
+ .init_machine = gtwx5715_init,
+#if defined(CONFIG_PCI)
+ .dma_zone_size = SZ_64M,
+#endif
+ .restart = ixp4xx_restart,
+MACHINE_END
+
+