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, 123 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-omap1/gpio15xx.c b/kernel/arch/arm/mach-omap1/gpio15xx.c
new file mode 100644
index 000000000..312a0924d
--- /dev/null
+++ b/kernel/arch/arm/mach-omap1/gpio15xx.c
@@ -0,0 +1,123 @@
+/*
+ * OMAP15xx specific gpio init
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Author:
+ *	Charulatha V <charu@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_data/gpio-omap.h>
+
+#include <mach/irqs.h>
+
+#define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE
+#define OMAP1510_GPIO_BASE		0xFFFCE000
+
+/* gpio1 */
+static struct resource omap15xx_mpu_gpio_resources[] = {
+	{
+		.start	= OMAP1_MPUIO_VBASE,
+		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_MPUIO,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
+	.revision       = USHRT_MAX,
+	.direction	= OMAP_MPUIO_IO_CNTL,
+	.datain		= OMAP_MPUIO_INPUT_LATCH,
+	.dataout	= OMAP_MPUIO_OUTPUT,
+	.irqstatus	= OMAP_MPUIO_GPIO_INT,
+	.irqenable	= OMAP_MPUIO_GPIO_MASKIT,
+	.irqenable_inv	= true,
+	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE,
+};
+
+static struct omap_gpio_platform_data omap15xx_mpu_gpio_config = {
+	.is_mpuio		= true,
+	.bank_width		= 16,
+	.bank_stride		= 1,
+	.regs			= &omap15xx_mpuio_regs,
+};
+
+static struct platform_device omap15xx_mpu_gpio = {
+	.name           = "omap_gpio",
+	.id             = 0,
+	.dev            = {
+		.platform_data = &omap15xx_mpu_gpio_config,
+	},
+	.num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources),
+	.resource = omap15xx_mpu_gpio_resources,
+};
+
+/* gpio2 */
+static struct resource omap15xx_gpio_resources[] = {
+	{
+		.start	= OMAP1510_GPIO_BASE,
+		.end	= OMAP1510_GPIO_BASE + SZ_2K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= INT_GPIO_BANK1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
+	.revision	= USHRT_MAX,
+	.direction	= OMAP1510_GPIO_DIR_CONTROL,
+	.datain		= OMAP1510_GPIO_DATA_INPUT,
+	.dataout	= OMAP1510_GPIO_DATA_OUTPUT,
+	.irqstatus	= OMAP1510_GPIO_INT_STATUS,
+	.irqenable	= OMAP1510_GPIO_INT_MASK,
+	.irqenable_inv	= true,
+	.irqctrl	= OMAP1510_GPIO_INT_CONTROL,
+	.pinctrl	= OMAP1510_GPIO_PIN_CONTROL,
+};
+
+static struct omap_gpio_platform_data omap15xx_gpio_config = {
+	.bank_width		= 16,
+	.regs                   = &omap15xx_gpio_regs,
+};
+
+static struct platform_device omap15xx_gpio = {
+	.name           = "omap_gpio",
+	.id             = 1,
+	.dev            = {
+		.platform_data = &omap15xx_gpio_config,
+	},
+	.num_resources = ARRAY_SIZE(omap15xx_gpio_resources),
+	.resource = omap15xx_gpio_resources,
+};
+
+/*
+ * omap15xx_gpio_init needs to be done before
+ * machine_init functions access gpio APIs.
+ * Hence omap15xx_gpio_init is a postcore_initcall.
+ */
+static int __init omap15xx_gpio_init(void)
+{
+	if (!cpu_is_omap15xx())
+		return -EINVAL;
+
+	platform_device_register(&omap15xx_mpu_gpio);
+	platform_device_register(&omap15xx_gpio);
+
+	return 0;
+}
+postcore_initcall(omap15xx_gpio_init);