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, 304 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-omap1/board-palmz71.c b/kernel/arch/arm/mach-omap1/board-palmz71.c
new file mode 100644
index 000000000..470e12d67
--- /dev/null
+++ b/kernel/arch/arm/mach-omap1/board-palmz71.c
@@ -0,0 +1,304 @@
+/*
+ * linux/arch/arm/mach-omap1/board-palmz71.c
+ *
+ * Modified from board-generic.c
+ *
+ * Support for the Palm Zire71 PDA.
+ *
+ * Original version : Laurent Gonzalez
+ *
+ * Modified for zire71 : Marek Vasut
+ *
+ * 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/delay.h>
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/notifier.h>
+#include <linux/clk.h>
+#include <linux/irq.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/omapfb.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+#include <linux/platform_data/omap1_bl.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/flash.h>
+#include <mach/mux.h>
+#include <linux/omap-dma.h>
+#include <mach/tc.h>
+#include <linux/platform_data/keypad-omap.h>
+
+#include <mach/hardware.h>
+#include <mach/usb.h>
+
+#include "common.h"
+
+#define PALMZ71_USBDETECT_GPIO	0
+#define PALMZ71_PENIRQ_GPIO	6
+#define PALMZ71_MMC_WP_GPIO	8
+#define PALMZ71_HDQ_GPIO 	11
+
+#define PALMZ71_HOTSYNC_GPIO	OMAP_MPUIO(1)
+#define PALMZ71_CABLE_GPIO	OMAP_MPUIO(2)
+#define PALMZ71_SLIDER_GPIO	OMAP_MPUIO(3)
+#define PALMZ71_MMC_IN_GPIO	OMAP_MPUIO(4)
+
+static const unsigned int palmz71_keymap[] = {
+	KEY(0, 0, KEY_F1),
+	KEY(1, 0, KEY_F2),
+	KEY(2, 0, KEY_F3),
+	KEY(3, 0, KEY_F4),
+	KEY(4, 0, KEY_POWER),
+	KEY(0, 1, KEY_LEFT),
+	KEY(1, 1, KEY_DOWN),
+	KEY(2, 1, KEY_UP),
+	KEY(3, 1, KEY_RIGHT),
+	KEY(4, 1, KEY_ENTER),
+	KEY(0, 2, KEY_CAMERA),
+};
+
+static const struct matrix_keymap_data palmz71_keymap_data = {
+	.keymap		= palmz71_keymap,
+	.keymap_size	= ARRAY_SIZE(palmz71_keymap),
+};
+
+static struct omap_kp_platform_data palmz71_kp_data = {
+	.rows	= 8,
+	.cols	= 8,
+	.keymap_data	= &palmz71_keymap_data,
+	.rep	= true,
+	.delay	= 80,
+};
+
+static struct resource palmz71_kp_resources[] = {
+	[0] = {
+		.start	= INT_KEYBOARD,
+		.end	= INT_KEYBOARD,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device palmz71_kp_device = {
+	.name	= "omap-keypad",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &palmz71_kp_data,
+	},
+	.num_resources	= ARRAY_SIZE(palmz71_kp_resources),
+	.resource	= palmz71_kp_resources,
+};
+
+static struct mtd_partition palmz71_rom_partitions[] = {
+	/* PalmOS "Small ROM", contains the bootloader and the debugger */
+	{
+		.name		= "smallrom",
+		.offset		= 0,
+		.size		= 0xa000,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
+	{
+		.name	= "bigrom",
+		.offset	= SZ_128K,
+		/*
+		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
+		 * 0x7b0000 bytes in the English-only ("enUS") version.
+		 */
+		.size		= 0x7b0000,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+};
+
+static struct physmap_flash_data palmz71_rom_data = {
+	.width		= 2,
+	.set_vpp	= omap1_set_vpp,
+	.parts		= palmz71_rom_partitions,
+	.nr_parts	= ARRAY_SIZE(palmz71_rom_partitions),
+};
+
+static struct resource palmz71_rom_resource = {
+	.start	= OMAP_CS0_PHYS,
+	.end	= OMAP_CS0_PHYS + SZ_8M - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device palmz71_rom_device = {
+	.name	= "physmap-flash",
+	.id	= -1,
+	.dev = {
+		.platform_data = &palmz71_rom_data,
+	},
+	.num_resources	= 1,
+	.resource	= &palmz71_rom_resource,
+};
+
+static struct platform_device palmz71_lcd_device = {
+	.name	= "lcd_palmz71",
+	.id	= -1,
+};
+
+static struct platform_device palmz71_spi_device = {
+	.name	= "spi_palmz71",
+	.id	= -1,
+};
+
+static struct omap_backlight_config palmz71_backlight_config = {
+	.default_intensity	= 0xa0,
+};
+
+static struct platform_device palmz71_backlight_device = {
+	.name	= "omap-bl",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &palmz71_backlight_config,
+	},
+};
+
+static struct platform_device *devices[] __initdata = {
+	&palmz71_rom_device,
+	&palmz71_kp_device,
+	&palmz71_lcd_device,
+	&palmz71_spi_device,
+	&palmz71_backlight_device,
+};
+
+static int
+palmz71_get_pendown_state(void)
+{
+	return !gpio_get_value(PALMZ71_PENIRQ_GPIO);
+}
+
+static const struct ads7846_platform_data palmz71_ts_info = {
+	.model			= 7846,
+	.vref_delay_usecs	= 100,	/* internal, no capacitor */
+	.x_plate_ohms		= 419,
+	.y_plate_ohms		= 486,
+	.get_pendown_state	= palmz71_get_pendown_state,
+};
+
+static struct spi_board_info __initdata palmz71_boardinfo[] = { {
+	/* MicroWire (bus 2) CS0 has an ads7846e */
+	.modalias	= "ads7846",
+	.platform_data	= &palmz71_ts_info,
+	.max_speed_hz	= 120000	/* max sample rate at 3V */
+				* 26	/* command + data + overhead */,
+	.bus_num	= 2,
+	.chip_select	= 0,
+} };
+
+static struct omap_usb_config palmz71_usb_config __initdata = {
+	.register_dev	= 1,	/* Mini-B only receptacle */
+	.hmc_mode	= 0,
+	.pins[0]	= 2,
+};
+
+static struct omap_lcd_config palmz71_lcd_config __initdata = {
+	.ctrl_name = "internal",
+};
+
+static irqreturn_t
+palmz71_powercable(int irq, void *dev_id)
+{
+	if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) {
+		printk(KERN_INFO "PM: Power cable connected\n");
+		irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
+				 IRQ_TYPE_EDGE_FALLING);
+	} else {
+		printk(KERN_INFO "PM: Power cable disconnected\n");
+		irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
+				 IRQ_TYPE_EDGE_RISING);
+	}
+	return IRQ_HANDLED;
+}
+
+static void __init
+omap_mpu_wdt_mode(int mode)
+{
+	if (mode)
+		omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
+	else {
+		omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
+		omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
+	}
+}
+
+static void __init
+palmz71_gpio_setup(int early)
+{
+	if (early) {
+		/* Only set GPIO1 so we have a working serial */
+		gpio_direction_output(1, 1);
+	} else {
+		/* Set MMC/SD host WP pin as input */
+		if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) {
+			printk(KERN_ERR "Could not reserve WP GPIO!\n");
+			return;
+		}
+		gpio_direction_input(PALMZ71_MMC_WP_GPIO);
+
+		/* Monitor the Power-cable-connected signal */
+		if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) {
+			printk(KERN_ERR
+				"Could not reserve cable signal GPIO!\n");
+			return;
+		}
+		gpio_direction_input(PALMZ71_USBDETECT_GPIO);
+		if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO),
+				palmz71_powercable, 0, "palmz71-cable", NULL))
+			printk(KERN_ERR
+					"IRQ request for power cable failed!\n");
+		palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL);
+	}
+}
+
+static void __init
+omap_palmz71_init(void)
+{
+	/* mux pins for uarts */
+	omap_cfg_reg(UART1_TX);
+	omap_cfg_reg(UART1_RTS);
+	omap_cfg_reg(UART2_TX);
+	omap_cfg_reg(UART2_RTS);
+	omap_cfg_reg(UART3_TX);
+	omap_cfg_reg(UART3_RX);
+
+	palmz71_gpio_setup(1);
+	omap_mpu_wdt_mode(0);
+
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+
+	palmz71_boardinfo[0].irq = gpio_to_irq(PALMZ71_PENIRQ_GPIO);
+	spi_register_board_info(palmz71_boardinfo,
+				ARRAY_SIZE(palmz71_boardinfo));
+	omap1_usb_init(&palmz71_usb_config);
+	omap_serial_init();
+	omap_register_i2c_bus(1, 100, NULL, 0);
+	palmz71_gpio_setup(0);
+
+	omapfb_set_lcd_config(&palmz71_lcd_config);
+}
+
+MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71")
+	.atag_offset	= 0x100,
+	.map_io		= omap15xx_map_io,
+	.init_early     = omap1_init_early,
+	.init_irq	= omap1_init_irq,
+	.init_machine	= omap_palmz71_init,
+	.init_late	= omap1_init_late,
+	.init_time	= omap1_timer_init,
+	.restart	= omap1_restart,
+MACHINE_END