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, 434 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-orion5x/net2big-setup.c b/kernel/arch/arm/mach-orion5x/net2big-setup.c
new file mode 100644
index 000000000..ba73dc7ff
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/net2big-setup.c
@@ -0,0 +1,434 @@
+/*
+ * arch/arm/mach-orion5x/net2big-setup.c
+ *
+ * LaCie 2Big Network NAS setup
+ *
+ * Copyright (C) 2009 Simon Guinot <sguinot@lacie.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/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.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/ata_platform.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/orion5x.h>
+#include <plat/orion-gpio.h>
+#include "common.h"
+#include "mpp.h"
+
+/*****************************************************************************
+ * LaCie 2Big Network Info
+ ****************************************************************************/
+
+/*
+ * 512KB NOR flash Device bus boot chip select
+ */
+
+#define NET2BIG_NOR_BOOT_BASE		0xfff80000
+#define NET2BIG_NOR_BOOT_SIZE		SZ_512K
+
+/*****************************************************************************
+ * 512KB NOR Flash on Boot Device
+ ****************************************************************************/
+
+/*
+ * TODO: Check write support on flash MX29LV400CBTC-70G
+ */
+
+static struct mtd_partition net2big_partitions[] = {
+	{
+		.name		= "Full512kb",
+		.size		= MTDPART_SIZ_FULL,
+		.offset		= 0x00000000,
+		.mask_flags	= MTD_WRITEABLE,
+	},
+};
+
+static struct physmap_flash_data net2big_nor_flash_data = {
+	.width		= 1,
+	.parts		= net2big_partitions,
+	.nr_parts	= ARRAY_SIZE(net2big_partitions),
+};
+
+static struct resource net2big_nor_flash_resource = {
+	.flags			= IORESOURCE_MEM,
+	.start			= NET2BIG_NOR_BOOT_BASE,
+	.end			= NET2BIG_NOR_BOOT_BASE
+					+ NET2BIG_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device net2big_nor_flash = {
+	.name			= "physmap-flash",
+	.id			= 0,
+	.dev		= {
+		.platform_data	= &net2big_nor_flash_data,
+	},
+	.num_resources		= 1,
+	.resource		= &net2big_nor_flash_resource,
+};
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data net2big_eth_data = {
+	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
+};
+
+/*****************************************************************************
+ * I2C devices
+ ****************************************************************************/
+
+/*
+ * i2c addr | chip         | description
+ * 0x32     | Ricoh 5C372b | RTC
+ * 0x50     | HT24LC08     | eeprom (1kB)
+ */
+static struct i2c_board_info __initdata net2big_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("rs5c372b", 0x32),
+	}, {
+		I2C_BOARD_INFO("24c08", 0x50),
+	},
+};
+
+/*****************************************************************************
+ * SATA
+ ****************************************************************************/
+
+static struct mv_sata_platform_data net2big_sata_data = {
+	.n_ports	= 2,
+};
+
+#define NET2BIG_GPIO_SATA_POWER_REQ	19
+#define NET2BIG_GPIO_SATA0_POWER	23
+#define NET2BIG_GPIO_SATA1_POWER	25
+
+static void __init net2big_sata_power_init(void)
+{
+	int err;
+
+	/* Configure GPIOs over MPP max number. */
+	orion_gpio_set_valid(NET2BIG_GPIO_SATA0_POWER, 1);
+	orion_gpio_set_valid(NET2BIG_GPIO_SATA1_POWER, 1);
+
+	err = gpio_request(NET2BIG_GPIO_SATA0_POWER, "SATA0 power status");
+	if (err == 0) {
+		err = gpio_direction_input(NET2BIG_GPIO_SATA0_POWER);
+		if (err)
+			gpio_free(NET2BIG_GPIO_SATA0_POWER);
+	}
+	if (err) {
+		pr_err("net2big: failed to setup SATA0 power GPIO\n");
+		return;
+	}
+
+	err = gpio_request(NET2BIG_GPIO_SATA1_POWER, "SATA1 power status");
+	if (err == 0) {
+		err = gpio_direction_input(NET2BIG_GPIO_SATA1_POWER);
+		if (err)
+			gpio_free(NET2BIG_GPIO_SATA1_POWER);
+	}
+	if (err) {
+		pr_err("net2big: failed to setup SATA1 power GPIO\n");
+		goto err_free_1;
+	}
+
+	err = gpio_request(NET2BIG_GPIO_SATA_POWER_REQ, "SATA power request");
+	if (err == 0) {
+		err = gpio_direction_output(NET2BIG_GPIO_SATA_POWER_REQ, 0);
+		if (err)
+			gpio_free(NET2BIG_GPIO_SATA_POWER_REQ);
+	}
+	if (err) {
+		pr_err("net2big: failed to setup SATA power request GPIO\n");
+		goto err_free_2;
+	}
+
+	if (gpio_get_value(NET2BIG_GPIO_SATA0_POWER) &&
+		gpio_get_value(NET2BIG_GPIO_SATA1_POWER)) {
+		return;
+	}
+
+	/*
+	 * SATA power up on both disk is done by pulling high the CPLD power
+	 * request line. The 300ms delay is related to the CPLD clock and is
+	 * needed to be sure that the CPLD has take into account the low line
+	 * status.
+	 */
+	msleep(300);
+	gpio_set_value(NET2BIG_GPIO_SATA_POWER_REQ, 1);
+	pr_info("net2big: power up SATA hard disks\n");
+
+	return;
+
+err_free_2:
+	gpio_free(NET2BIG_GPIO_SATA1_POWER);
+err_free_1:
+	gpio_free(NET2BIG_GPIO_SATA0_POWER);
+
+	return;
+}
+
+/*****************************************************************************
+ * GPIO LEDs
+ ****************************************************************************/
+
+/*
+ * The power front LEDs (blue and red) and SATA red LEDs are controlled via a
+ * single GPIO line and are compatible with the leds-gpio driver.
+ *
+ * The SATA blue LEDs have some hardware blink capabilities which are detailed
+ * in the following array:
+ *
+ * SATAx blue LED | SATAx activity | LED state
+ *                |                |
+ *       0        |       0        |  blink (rate 300ms)
+ *       1        |       0        |  off
+ *       ?        |       1        |  on
+ *
+ * Notes: The blue and the red front LED's can't be on at the same time.
+ *        Blue LED have priority.
+ */
+
+#define NET2BIG_GPIO_PWR_RED_LED	6
+#define NET2BIG_GPIO_PWR_BLUE_LED	16
+#define NET2BIG_GPIO_PWR_LED_BLINK_STOP	7
+
+#define NET2BIG_GPIO_SATA0_RED_LED	11
+#define NET2BIG_GPIO_SATA1_RED_LED	10
+
+#define NET2BIG_GPIO_SATA0_BLUE_LED	17
+#define NET2BIG_GPIO_SATA1_BLUE_LED	13
+
+static struct gpio_led net2big_leds[] = {
+	{
+		.name = "net2big:red:power",
+		.gpio = NET2BIG_GPIO_PWR_RED_LED,
+	},
+	{
+		.name = "net2big:blue:power",
+		.gpio = NET2BIG_GPIO_PWR_BLUE_LED,
+	},
+	{
+		.name = "net2big:red:sata0",
+		.gpio = NET2BIG_GPIO_SATA0_RED_LED,
+	},
+	{
+		.name = "net2big:red:sata1",
+		.gpio = NET2BIG_GPIO_SATA1_RED_LED,
+	},
+};
+
+static struct gpio_led_platform_data net2big_led_data = {
+	.num_leds = ARRAY_SIZE(net2big_leds),
+	.leds = net2big_leds,
+};
+
+static struct platform_device net2big_gpio_leds = {
+	.name           = "leds-gpio",
+	.id             = -1,
+	.dev            = {
+		.platform_data  = &net2big_led_data,
+	},
+};
+
+static void __init net2big_gpio_leds_init(void)
+{
+	int err;
+
+	/* Stop initial CPLD slow red/blue blinking on power LED. */
+	err = gpio_request(NET2BIG_GPIO_PWR_LED_BLINK_STOP,
+			   "Power LED blink stop");
+	if (err == 0) {
+		err = gpio_direction_output(NET2BIG_GPIO_PWR_LED_BLINK_STOP, 1);
+		if (err)
+			gpio_free(NET2BIG_GPIO_PWR_LED_BLINK_STOP);
+	}
+	if (err)
+		pr_err("net2big: failed to setup power LED blink GPIO\n");
+
+	/*
+	 * Configure SATA0 and SATA1 blue LEDs to blink in relation with the
+	 * hard disk activity.
+	 */
+	err = gpio_request(NET2BIG_GPIO_SATA0_BLUE_LED,
+			   "SATA0 blue LED control");
+	if (err == 0) {
+		err = gpio_direction_output(NET2BIG_GPIO_SATA0_BLUE_LED, 1);
+		if (err)
+			gpio_free(NET2BIG_GPIO_SATA0_BLUE_LED);
+	}
+	if (err)
+		pr_err("net2big: failed to setup SATA0 blue LED GPIO\n");
+
+	err = gpio_request(NET2BIG_GPIO_SATA1_BLUE_LED,
+			   "SATA1 blue LED control");
+	if (err == 0) {
+		err = gpio_direction_output(NET2BIG_GPIO_SATA1_BLUE_LED, 1);
+		if (err)
+			gpio_free(NET2BIG_GPIO_SATA1_BLUE_LED);
+	}
+	if (err)
+		pr_err("net2big: failed to setup SATA1 blue LED GPIO\n");
+
+	platform_device_register(&net2big_gpio_leds);
+}
+
+/****************************************************************************
+ * GPIO keys
+ ****************************************************************************/
+
+#define NET2BIG_GPIO_PUSH_BUTTON	18
+#define NET2BIG_GPIO_POWER_SWITCH_ON	8
+#define NET2BIG_GPIO_POWER_SWITCH_OFF	9
+
+#define NET2BIG_SWITCH_POWER_ON		0x1
+#define NET2BIG_SWITCH_POWER_OFF	0x2
+
+static struct gpio_keys_button net2big_buttons[] = {
+	{
+		.type		= EV_SW,
+		.code		= NET2BIG_SWITCH_POWER_OFF,
+		.gpio		= NET2BIG_GPIO_POWER_SWITCH_OFF,
+		.desc		= "Power rocker switch (auto|off)",
+		.active_low	= 0,
+	},
+	{
+		.type		= EV_SW,
+		.code		= NET2BIG_SWITCH_POWER_ON,
+		.gpio		= NET2BIG_GPIO_POWER_SWITCH_ON,
+		.desc		= "Power rocker switch (on|auto)",
+		.active_low	= 0,
+	},
+	{
+		.type		= EV_KEY,
+		.code		= KEY_POWER,
+		.gpio		= NET2BIG_GPIO_PUSH_BUTTON,
+		.desc		= "Front Push Button",
+		.active_low	= 0,
+	},
+};
+
+static struct gpio_keys_platform_data net2big_button_data = {
+	.buttons	= net2big_buttons,
+	.nbuttons	= ARRAY_SIZE(net2big_buttons),
+};
+
+static struct platform_device net2big_gpio_buttons = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &net2big_button_data,
+	},
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+
+static unsigned int net2big_mpp_modes[] __initdata = {
+	MPP0_GPIO,	/* Raid mode (bit 0) */
+	MPP1_GPIO,	/* USB port 2 fuse (0 = Fail, 1 = Ok) */
+	MPP2_GPIO,	/* Raid mode (bit 1) */
+	MPP3_GPIO,	/* Board ID (bit 0) */
+	MPP4_GPIO,	/* Fan activity (0 = Off, 1 = On) */
+	MPP5_GPIO,	/* Fan fail detection */
+	MPP6_GPIO,	/* Red front LED (0 = Off, 1 = On) */
+	MPP7_GPIO,	/* Disable initial blinking on front LED */
+	MPP8_GPIO,	/* Rear power switch (on|auto) */
+	MPP9_GPIO,	/* Rear power switch (auto|off) */
+	MPP10_GPIO,	/* SATA 1 red LED (0 = Off, 1 = On) */
+	MPP11_GPIO,	/* SATA 0 red LED (0 = Off, 1 = On) */
+	MPP12_GPIO,	/* Board ID (bit 1) */
+	MPP13_GPIO,	/* SATA 1 blue LED blink control */
+	MPP14_SATA_LED,
+	MPP15_SATA_LED,
+	MPP16_GPIO,	/* Blue front LED control */
+	MPP17_GPIO,	/* SATA 0 blue LED blink control */
+	MPP18_GPIO,	/* Front button (0 = Released, 1 = Pushed ) */
+	MPP19_GPIO,	/* SATA{0,1} power On/Off request */
+	0,
+	/* 22: USB port 1 fuse (0 = Fail, 1 = Ok) */
+	/* 23: SATA 0 power status */
+	/* 24: Board power off */
+	/* 25: SATA 1 power status */
+};
+
+#define NET2BIG_GPIO_POWER_OFF		24
+
+static void net2big_power_off(void)
+{
+	gpio_set_value(NET2BIG_GPIO_POWER_OFF, 1);
+}
+
+static void __init net2big_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion5x_init();
+
+	orion5x_mpp_conf(net2big_mpp_modes);
+
+	/*
+	 * Configure peripherals.
+	 */
+	orion5x_ehci0_init();
+	orion5x_ehci1_init();
+	orion5x_eth_init(&net2big_eth_data);
+	orion5x_i2c_init();
+	orion5x_uart0_init();
+	orion5x_xor_init();
+
+	net2big_sata_power_init();
+	orion5x_sata_init(&net2big_sata_data);
+
+	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
+				    ORION_MBUS_DEVBUS_BOOT_ATTR,
+				    NET2BIG_NOR_BOOT_BASE,
+				    NET2BIG_NOR_BOOT_SIZE);
+	platform_device_register(&net2big_nor_flash);
+
+	platform_device_register(&net2big_gpio_buttons);
+	net2big_gpio_leds_init();
+
+	i2c_register_board_info(0, net2big_i2c_devices,
+				ARRAY_SIZE(net2big_i2c_devices));
+
+	orion_gpio_set_valid(NET2BIG_GPIO_POWER_OFF, 1);
+
+	if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
+	    gpio_direction_output(NET2BIG_GPIO_POWER_OFF, 0) == 0)
+		pm_power_off = net2big_power_off;
+	else
+		pr_err("net2big: failed to configure power-off GPIO\n");
+
+	pr_notice("net2big: Flash writing is not yet supported.\n");
+}
+
+/* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
+MACHINE_START(NET2BIG, "LaCie 2Big Network")
+	.atag_offset	= 0x100,
+	.init_machine	= net2big_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
+