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, 272 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-orion5x/wrt350n-v2-setup.c b/kernel/arch/arm/mach-orion5x/wrt350n-v2-setup.c
new file mode 100644
index 000000000..670e30dc0
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/wrt350n-v2-setup.c
@@ -0,0 +1,272 @@
+/*
+ * arch/arm/mach-orion5x/wrt350n-v2-setup.c
+ *
+ * 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/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/delay.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/ethtool.h>
+#include <linux/leds.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <net/dsa.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"
+
+/*
+ * LEDs attached to GPIO
+ */
+static struct gpio_led wrt350n_v2_led_pins[] = {
+	{
+		.name		= "wrt350nv2:green:power",
+		.gpio		= 0,
+		.active_low	= 1,
+	}, {
+		.name		= "wrt350nv2:green:security",
+		.gpio		= 1,
+		.active_low	= 1,
+	}, {
+		.name		= "wrt350nv2:orange:power",
+		.gpio		= 5,
+		.active_low	= 1,
+	}, {
+		.name		= "wrt350nv2:green:usb",
+		.gpio		= 6,
+		.active_low	= 1,
+	}, {
+		.name		= "wrt350nv2:green:wireless",
+		.gpio		= 7,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_led_platform_data wrt350n_v2_led_data = {
+	.leds		= wrt350n_v2_led_pins,
+	.num_leds	= ARRAY_SIZE(wrt350n_v2_led_pins),
+};
+
+static struct platform_device wrt350n_v2_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &wrt350n_v2_led_data,
+	},
+};
+
+/*
+ * Buttons attached to GPIO
+ */
+static struct gpio_keys_button wrt350n_v2_buttons[] = {
+	{
+		.code		= KEY_RESTART,
+		.gpio		= 3,
+		.desc		= "Reset Button",
+		.active_low	= 1,
+	}, {
+		.code		= KEY_WPS_BUTTON,
+		.gpio		= 2,
+		.desc		= "WPS Button",
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_platform_data wrt350n_v2_button_data = {
+	.buttons	= wrt350n_v2_buttons,
+	.nbuttons	= ARRAY_SIZE(wrt350n_v2_buttons),
+};
+
+static struct platform_device wrt350n_v2_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= {
+		.platform_data	= &wrt350n_v2_button_data,
+	},
+};
+
+/*
+ * General setup
+ */
+static unsigned int wrt350n_v2_mpp_modes[] __initdata = {
+	MPP0_GPIO,		/* Power LED green (0=on) */
+	MPP1_GPIO,		/* Security LED (0=on) */
+	MPP2_GPIO,		/* Internal Button (0=on) */
+	MPP3_GPIO,		/* Reset Button (0=on) */
+	MPP4_GPIO,		/* PCI int */
+	MPP5_GPIO,		/* Power LED orange (0=on) */
+	MPP6_GPIO,		/* USB LED (0=on) */
+	MPP7_GPIO,		/* Wireless LED (0=on) */
+	MPP8_UNUSED,		/* ??? */
+	MPP9_GIGE,		/* GE_RXERR */
+	MPP10_UNUSED,		/* ??? */
+	MPP11_UNUSED,		/* ??? */
+	MPP12_GIGE,		/* GE_TXD[4] */
+	MPP13_GIGE,		/* GE_TXD[5] */
+	MPP14_GIGE,		/* GE_TXD[6] */
+	MPP15_GIGE,		/* GE_TXD[7] */
+	MPP16_GIGE,		/* GE_RXD[4] */
+	MPP17_GIGE,		/* GE_RXD[5] */
+	MPP18_GIGE,		/* GE_RXD[6] */
+	MPP19_GIGE,		/* GE_RXD[7] */
+	0,
+};
+
+/*
+ * 8M NOR flash Device bus boot chip select
+ */
+#define WRT350N_V2_NOR_BOOT_BASE	0xf4000000
+#define WRT350N_V2_NOR_BOOT_SIZE	SZ_8M
+
+static struct mtd_partition wrt350n_v2_nor_flash_partitions[] = {
+	{
+		.name		= "kernel",
+		.offset		= 0x00000000,
+		.size		= 0x00760000,
+	}, {
+		.name		= "rootfs",
+		.offset		= 0x001a0000,
+		.size		= 0x005c0000,
+	}, {
+		.name		= "lang",
+		.offset		= 0x00760000,
+		.size		= 0x00040000,
+	}, {
+		.name		= "nvram",
+		.offset		= 0x007a0000,
+		.size		= 0x00020000,
+	}, {
+		.name		= "u-boot",
+		.offset		= 0x007c0000,
+		.size		= 0x00040000,
+	},
+};
+
+static struct physmap_flash_data wrt350n_v2_nor_flash_data = {
+	.width		= 1,
+	.parts		= wrt350n_v2_nor_flash_partitions,
+	.nr_parts	= ARRAY_SIZE(wrt350n_v2_nor_flash_partitions),
+};
+
+static struct resource wrt350n_v2_nor_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= WRT350N_V2_NOR_BOOT_BASE,
+	.end		= WRT350N_V2_NOR_BOOT_BASE + WRT350N_V2_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device wrt350n_v2_nor_flash = {
+	.name			= "physmap-flash",
+	.id			= 0,
+	.dev		= {
+		.platform_data	= &wrt350n_v2_nor_flash_data,
+	},
+	.num_resources		= 1,
+	.resource		= &wrt350n_v2_nor_flash_resource,
+};
+
+static struct mv643xx_eth_platform_data wrt350n_v2_eth_data = {
+	.phy_addr	= MV643XX_ETH_PHY_NONE,
+	.speed		= SPEED_1000,
+	.duplex		= DUPLEX_FULL,
+};
+
+static struct dsa_chip_data wrt350n_v2_switch_chip_data = {
+	.port_names[0]	= "lan2",
+	.port_names[1]	= "lan1",
+	.port_names[2]	= "wan",
+	.port_names[3]	= "cpu",
+	.port_names[5]	= "lan3",
+	.port_names[7]	= "lan4",
+};
+
+static struct dsa_platform_data wrt350n_v2_switch_plat_data = {
+	.nr_chips	= 1,
+	.chip		= &wrt350n_v2_switch_chip_data,
+};
+
+static void __init wrt350n_v2_init(void)
+{
+	/*
+	 * Setup basic Orion functions. Need to be called early.
+	 */
+	orion5x_init();
+
+	orion5x_mpp_conf(wrt350n_v2_mpp_modes);
+
+	/*
+	 * Configure peripherals.
+	 */
+	orion5x_ehci0_init();
+	orion5x_eth_init(&wrt350n_v2_eth_data);
+	orion5x_eth_switch_init(&wrt350n_v2_switch_plat_data, NO_IRQ);
+	orion5x_uart0_init();
+
+	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
+				    ORION_MBUS_DEVBUS_BOOT_ATTR,
+				    WRT350N_V2_NOR_BOOT_BASE,
+				    WRT350N_V2_NOR_BOOT_SIZE);
+	platform_device_register(&wrt350n_v2_nor_flash);
+	platform_device_register(&wrt350n_v2_leds);
+	platform_device_register(&wrt350n_v2_button_device);
+}
+
+static int __init wrt350n_v2_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;
+
+	/*
+	 * Mini-PCI slot.
+	 */
+	if (slot == 7)
+		return gpio_to_irq(4);
+
+	return -1;
+}
+
+static struct hw_pci wrt350n_v2_pci __initdata = {
+	.nr_controllers	= 2,
+	.setup		= orion5x_pci_sys_setup,
+	.scan		= orion5x_pci_sys_scan_bus,
+	.map_irq	= wrt350n_v2_pci_map_irq,
+};
+
+static int __init wrt350n_v2_pci_init(void)
+{
+	if (machine_is_wrt350n_v2())
+		pci_common_init(&wrt350n_v2_pci);
+
+	return 0;
+}
+subsys_initcall(wrt350n_v2_pci_init);
+
+MACHINE_START(WRT350N_V2, "Linksys WRT350N v2")
+	/* Maintainer: Lennert Buytenhek <buytenh@marvell.com> */
+	.atag_offset	= 0x100,
+	.init_machine	= wrt350n_v2_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