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, 181 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-sa1100/cerf.c b/kernel/arch/arm/mach-sa1100/cerf.c
new file mode 100644
index 000000000..2d25ececb
--- /dev/null
+++ b/kernel/arch/arm/mach-sa1100/cerf.c
@@ -0,0 +1,181 @@
+/*
+ * linux/arch/arm/mach-sa1100/cerf.c
+ *
+ * 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.
+ *
+ * Apr-2003 : Removed some old PDA crud [FB]
+ * Oct-2003 : Added uart2 resource [FB]
+ * Jan-2004 : Removed io map for flash [FB]
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/platform_data/sa11x0-serial.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+
+#include <mach/hardware.h>
+#include <asm/setup.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/map.h>
+
+#include <mach/cerf.h>
+#include <linux/platform_data/mfd-mcp-sa11x0.h>
+#include <mach/irqs.h>
+#include "generic.h"
+
+static struct resource cerfuart2_resources[] = {
+	[0] = DEFINE_RES_MEM(0x80030000, SZ_64K),
+};
+
+static struct platform_device cerfuart2_device = {
+	.name		= "sa11x0-uart",
+	.id		= 2,
+	.num_resources	= ARRAY_SIZE(cerfuart2_resources),
+	.resource	= cerfuart2_resources,
+};
+
+/* LEDs */
+struct gpio_led cerf_gpio_leds[] = {
+	{
+		.name			= "cerf:d0",
+		.default_trigger	= "heartbeat",
+		.gpio			= 0,
+	},
+	{
+		.name			= "cerf:d1",
+		.default_trigger	= "cpu0",
+		.gpio			= 1,
+	},
+	{
+		.name			= "cerf:d2",
+		.default_trigger	= "default-on",
+		.gpio			= 2,
+	},
+	{
+		.name			= "cerf:d3",
+		.default_trigger	= "default-on",
+		.gpio			= 3,
+	},
+
+};
+
+static struct gpio_led_platform_data cerf_gpio_led_info = {
+	.leds		= cerf_gpio_leds,
+	.num_leds	= ARRAY_SIZE(cerf_gpio_leds),
+};
+
+static struct platform_device cerf_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &cerf_gpio_led_info,
+	}
+};
+
+
+static struct platform_device *cerf_devices[] __initdata = {
+	&cerfuart2_device,
+	&cerf_leds,
+};
+
+#ifdef CONFIG_SA1100_CERF_FLASH_32MB
+#  define CERF_FLASH_SIZE	0x02000000
+#elif defined CONFIG_SA1100_CERF_FLASH_16MB
+#  define CERF_FLASH_SIZE	0x01000000
+#elif defined CONFIG_SA1100_CERF_FLASH_8MB
+#  define CERF_FLASH_SIZE	0x00800000
+#else
+#  error "Undefined flash size for CERF"
+#endif
+
+static struct mtd_partition cerf_partitions[] = {
+	{
+		.name		= "Bootloader",
+		.size		= 0x00020000,
+		.offset		= 0x00000000,
+	}, {
+		.name		= "Params",
+		.size		= 0x00040000,
+		.offset		= 0x00020000,
+	}, {
+		.name		= "Kernel",
+		.size		= 0x00100000,
+		.offset		= 0x00060000,
+	}, {
+		.name		= "Filesystem",
+		.size		= CERF_FLASH_SIZE-0x00160000,
+		.offset		= 0x00160000,
+	}
+};
+
+static struct flash_platform_data cerf_flash_data = {
+	.map_name	= "cfi_probe",
+	.parts		= cerf_partitions,
+	.nr_parts	= ARRAY_SIZE(cerf_partitions),
+};
+
+static struct resource cerf_flash_resource =
+	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);
+
+static void __init cerf_init_irq(void)
+{
+	sa1100_init_irq();
+	irq_set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
+}
+
+static struct map_desc cerf_io_desc[] __initdata = {
+  	{	/* Crystal Ethernet Chip */
+		.virtual	=  0xf0000000,
+		.pfn		= __phys_to_pfn(0x08000000),
+		.length		= 0x00100000,
+		.type		= MT_DEVICE
+	}
+};
+
+static void __init cerf_map_io(void)
+{
+	sa1100_map_io();
+	iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));
+
+	sa1100_register_uart(0, 3);
+	sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
+	sa1100_register_uart(2, 1);
+
+	/* set some GPDR bits here while it's safe */
+	GPDR |= CERF_GPIO_CF_RESET;
+}
+
+static struct mcp_plat_data cerf_mcp_data = {
+	.mccr0		= MCCR0_ADM,
+	.sclk_rate	= 11981000,
+};
+
+static void __init cerf_init(void)
+{
+	sa11x0_ppc_configure_mcp();
+	platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
+	sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
+	sa11x0_register_mcp(&cerf_mcp_data);
+}
+
+MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
+	/* Maintainer: support@intrinsyc.com */
+	.map_io		= cerf_map_io,
+	.nr_irqs	= SA1100_NR_IRQS,
+	.init_irq	= cerf_init_irq,
+	.init_time	= sa1100_timer_init,
+	.init_machine	= cerf_init,
+	.init_late	= sa11x0_init_late,
+	.restart	= sa11x0_restart,
+MACHINE_END