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, 92 insertions, 0 deletions

diff --git a/kernel/arch/mips/ath79/mach-ap121.c b/kernel/arch/mips/ath79/mach-ap121.c
new file mode 100644
index 000000000..1bf73f2a0
--- /dev/null
+++ b/kernel/arch/mips/ath79/mach-ap121.c
@@ -0,0 +1,92 @@
+/*
+ *  Atheros AP121 board support
+ *
+ *  Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.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 "machtypes.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-spi.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+
+#define AP121_GPIO_LED_WLAN		0
+#define AP121_GPIO_LED_USB		1
+
+#define AP121_GPIO_BTN_JUMPSTART	11
+#define AP121_GPIO_BTN_RESET		12
+
+#define AP121_KEYS_POLL_INTERVAL	20	/* msecs */
+#define AP121_KEYS_DEBOUNCE_INTERVAL	(3 * AP121_KEYS_POLL_INTERVAL)
+
+#define AP121_CAL_DATA_ADDR	0x1fff1000
+
+static struct gpio_led ap121_leds_gpio[] __initdata = {
+	{
+		.name		= "ap121:green:usb",
+		.gpio		= AP121_GPIO_LED_USB,
+		.active_low	= 0,
+	},
+	{
+		.name		= "ap121:green:wlan",
+		.gpio		= AP121_GPIO_LED_WLAN,
+		.active_low	= 0,
+	},
+};
+
+static struct gpio_keys_button ap121_gpio_keys[] __initdata = {
+	{
+		.desc		= "jumpstart button",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = AP121_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= AP121_GPIO_BTN_JUMPSTART,
+		.active_low	= 1,
+	},
+	{
+		.desc		= "reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = AP121_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= AP121_GPIO_BTN_RESET,
+		.active_low	= 1,
+	}
+};
+
+static struct spi_board_info ap121_spi_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.max_speed_hz	= 25000000,
+		.modalias	= "mx25l1606e",
+	}
+};
+
+static struct ath79_spi_platform_data ap121_spi_data = {
+	.bus_num	= 0,
+	.num_chipselect = 1,
+};
+
+static void __init ap121_setup(void)
+{
+	u8 *cal_data = (u8 *) KSEG1ADDR(AP121_CAL_DATA_ADDR);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(ap121_leds_gpio),
+				 ap121_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, AP121_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(ap121_gpio_keys),
+					ap121_gpio_keys);
+
+	ath79_register_spi(&ap121_spi_data, ap121_spi_info,
+			   ARRAY_SIZE(ap121_spi_info));
+	ath79_register_usb();
+	ath79_register_wmac(cal_data);
+}
+
+MIPS_MACHINE(ATH79_MACH_AP121, "AP121", "Atheros AP121 reference board",
+	     ap121_setup);