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, 331 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-omap1/board-perseus2.c b/kernel/arch/arm/mach-omap1/board-perseus2.c
new file mode 100644
index 000000000..8b2f7127f
--- /dev/null
+++ b/kernel/arch/arm/mach-omap1/board-perseus2.c
@@ -0,0 +1,331 @@
+/*
+ * linux/arch/arm/mach-omap1/board-perseus2.c
+ *
+ * Modified from board-generic.c
+ *
+ * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
+ * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/input.h>
+#include <linux/smc91x.h>
+#include <linux/omapfb.h>
+#include <linux/platform_data/keypad-omap.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/tc.h>
+#include <mach/mux.h>
+#include <mach/flash.h>
+
+#include <mach/hardware.h>
+
+#include "iomap.h"
+#include "common.h"
+#include "fpga.h"
+
+static const unsigned int p2_keymap[] = {
+	KEY(0, 0, KEY_UP),
+	KEY(1, 0, KEY_RIGHT),
+	KEY(2, 0, KEY_LEFT),
+	KEY(3, 0, KEY_DOWN),
+	KEY(4, 0, KEY_ENTER),
+	KEY(0, 1, KEY_F10),
+	KEY(1, 1, KEY_SEND),
+	KEY(2, 1, KEY_END),
+	KEY(3, 1, KEY_VOLUMEDOWN),
+	KEY(4, 1, KEY_VOLUMEUP),
+	KEY(5, 1, KEY_RECORD),
+	KEY(0, 2, KEY_F9),
+	KEY(1, 2, KEY_3),
+	KEY(2, 2, KEY_6),
+	KEY(3, 2, KEY_9),
+	KEY(4, 2, KEY_KPDOT),
+	KEY(0, 3, KEY_BACK),
+	KEY(1, 3, KEY_2),
+	KEY(2, 3, KEY_5),
+	KEY(3, 3, KEY_8),
+	KEY(4, 3, KEY_0),
+	KEY(5, 3, KEY_KPSLASH),
+	KEY(0, 4, KEY_HOME),
+	KEY(1, 4, KEY_1),
+	KEY(2, 4, KEY_4),
+	KEY(3, 4, KEY_7),
+	KEY(4, 4, KEY_KPASTERISK),
+	KEY(5, 4, KEY_POWER),
+};
+
+static struct smc91x_platdata smc91x_info = {
+	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
+	.leda	= RPC_LED_100_10,
+	.ledb	= RPC_LED_TX_RX,
+};
+
+static struct resource smc91x_resources[] = {
+	[0] = {
+		.start	= H2P2_DBG_FPGA_ETHR_START,	/* Physical */
+		.end	= H2P2_DBG_FPGA_ETHR_START + 0xf,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= INT_7XX_MPU_EXT_NIRQ,
+		.end	= 0,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	},
+};
+
+static struct mtd_partition nor_partitions[] = {
+	/* bootloader (U-Boot, etc) in first sector */
+	{
+	      .name		= "bootloader",
+	      .offset		= 0,
+	      .size		= SZ_128K,
+	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
+	},
+	/* bootloader params in the next sector */
+	{
+	      .name		= "params",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_128K,
+	      .mask_flags	= 0,
+	},
+	/* kernel */
+	{
+	      .name		= "kernel",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= SZ_2M,
+	      .mask_flags	= 0
+	},
+	/* rest of flash is a file system */
+	{
+	      .name		= "rootfs",
+	      .offset		= MTDPART_OFS_APPEND,
+	      .size		= MTDPART_SIZ_FULL,
+	      .mask_flags	= 0
+	},
+};
+
+static struct physmap_flash_data nor_data = {
+	.width		= 2,
+	.set_vpp	= omap1_set_vpp,
+	.parts		= nor_partitions,
+	.nr_parts	= ARRAY_SIZE(nor_partitions),
+};
+
+static struct resource nor_resource = {
+	.start		= OMAP_CS0_PHYS,
+	.end		= OMAP_CS0_PHYS + SZ_32M - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device nor_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &nor_data,
+	},
+	.num_resources	= 1,
+	.resource	= &nor_resource,
+};
+
+#define P2_NAND_RB_GPIO_PIN	62
+
+static int nand_dev_ready(struct mtd_info *mtd)
+{
+	return gpio_get_value(P2_NAND_RB_GPIO_PIN);
+}
+
+static struct platform_nand_data nand_data = {
+	.chip	= {
+		.nr_chips		= 1,
+		.chip_offset		= 0,
+		.options		= NAND_SAMSUNG_LP_OPTIONS,
+	},
+	.ctrl	= {
+		.cmd_ctrl	= omap1_nand_cmd_ctl,
+		.dev_ready	= nand_dev_ready,
+	},
+};
+
+static struct resource nand_resource = {
+	.start		= OMAP_CS3_PHYS,
+	.end		= OMAP_CS3_PHYS + SZ_4K - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device nand_device = {
+	.name		= "gen_nand",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &nand_data,
+	},
+	.num_resources	= 1,
+	.resource	= &nand_resource,
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.dev	= {
+		.platform_data	= &smc91x_info,
+	},
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+};
+
+static struct resource kp_resources[] = {
+	[0] = {
+		.start	= INT_7XX_MPUIO_KEYPAD,
+		.end	= INT_7XX_MPUIO_KEYPAD,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static const struct matrix_keymap_data p2_keymap_data = {
+	.keymap		= p2_keymap,
+	.keymap_size	= ARRAY_SIZE(p2_keymap),
+};
+
+static struct omap_kp_platform_data kp_data = {
+	.rows		= 8,
+	.cols		= 8,
+	.keymap_data	= &p2_keymap_data,
+	.delay		= 4,
+	.dbounce	= true,
+};
+
+static struct platform_device kp_device = {
+	.name		= "omap-keypad",
+	.id		= -1,
+	.dev		= {
+		.platform_data = &kp_data,
+	},
+	.num_resources	= ARRAY_SIZE(kp_resources),
+	.resource	= kp_resources,
+};
+
+static struct platform_device *devices[] __initdata = {
+	&nor_device,
+	&nand_device,
+	&smc91x_device,
+	&kp_device,
+};
+
+static struct omap_lcd_config perseus2_lcd_config __initdata = {
+	.ctrl_name	= "internal",
+};
+
+static void __init perseus2_init_smc91x(void)
+{
+	__raw_writeb(1, H2P2_DBG_FPGA_LAN_RESET);
+	mdelay(50);
+	__raw_writeb(__raw_readb(H2P2_DBG_FPGA_LAN_RESET) & ~1,
+		   H2P2_DBG_FPGA_LAN_RESET);
+	mdelay(50);
+}
+
+static void __init omap_perseus2_init(void)
+{
+	/* Early, board-dependent init */
+
+	/*
+	 * Hold GSM Reset until needed
+	 */
+	omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
+
+	/*
+	 * UARTs -> done automagically by 8250 driver
+	 */
+
+	/*
+	 * CSx timings, GPIO Mux ... setup
+	 */
+
+	/* Flash: CS0 timings setup */
+	omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
+	omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
+
+	/*
+	 * Ethernet support through the debug board
+	 * CS1 timings setup
+	 */
+	omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
+	omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
+
+	/*
+	 * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
+	 * It is used as the Ethernet controller interrupt
+	 */
+	omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF,
+				OMAP7XX_IO_CONF_9);
+
+	perseus2_init_smc91x();
+
+	BUG_ON(gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0);
+	gpio_direction_input(P2_NAND_RB_GPIO_PIN);
+
+	omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
+	omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
+
+	/* Mux pins for keypad */
+	omap_cfg_reg(E2_7XX_KBR0);
+	omap_cfg_reg(J7_7XX_KBR1);
+	omap_cfg_reg(E1_7XX_KBR2);
+	omap_cfg_reg(F3_7XX_KBR3);
+	omap_cfg_reg(D2_7XX_KBR4);
+	omap_cfg_reg(C2_7XX_KBC0);
+	omap_cfg_reg(D3_7XX_KBC1);
+	omap_cfg_reg(E4_7XX_KBC2);
+	omap_cfg_reg(F4_7XX_KBC3);
+	omap_cfg_reg(E3_7XX_KBC4);
+
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+
+	omap_serial_init();
+	omap_register_i2c_bus(1, 100, NULL, 0);
+
+	omapfb_set_lcd_config(&perseus2_lcd_config);
+}
+
+/* Only FPGA needs to be mapped here. All others are done with ioremap */
+static struct map_desc omap_perseus2_io_desc[] __initdata = {
+	{
+		.virtual	= H2P2_DBG_FPGA_BASE,
+		.pfn		= __phys_to_pfn(H2P2_DBG_FPGA_START),
+		.length		= H2P2_DBG_FPGA_SIZE,
+		.type		= MT_DEVICE
+	}
+};
+
+static void __init omap_perseus2_map_io(void)
+{
+	omap7xx_map_io();
+	iotable_init(omap_perseus2_io_desc,
+		     ARRAY_SIZE(omap_perseus2_io_desc));
+}
+
+MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
+	/* Maintainer: Kevin Hilman <kjh@hilman.org> */
+	.atag_offset	= 0x100,
+	.map_io		= omap_perseus2_map_io,
+	.init_early     = omap1_init_early,
+	.init_irq	= omap1_init_irq,
+	.init_machine	= omap_perseus2_init,
+	.init_late	= omap1_init_late,
+	.init_time	= omap1_timer_init,
+	.restart	= omap1_restart,
+MACHINE_END