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, 109 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-sa1100/shannon.c b/kernel/arch/arm/mach-sa1100/shannon.c
new file mode 100644
index 000000000..c8866bce7
--- /dev/null
+++ b/kernel/arch/arm/mach-sa1100/shannon.c
@@ -0,0 +1,109 @@
+/*
+ * linux/arch/arm/mach-sa1100/shannon.c
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/platform_data/sa11x0-serial.h>
+#include <linux/tty.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include <video/sa1100fb.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/setup.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/map.h>
+#include <linux/platform_data/mfd-mcp-sa11x0.h>
+#include <mach/shannon.h>
+#include <mach/irqs.h>
+
+#include "generic.h"
+
+static struct mtd_partition shannon_partitions[] = {
+	{
+		.name		= "BLOB boot loader",
+		.offset		= 0,
+		.size		= 0x20000
+	},
+	{
+		.name		= "kernel",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 0xe0000
+	},
+	{
+		.name		= "initrd",
+		.offset		= MTDPART_OFS_APPEND,	
+		.size		= MTDPART_SIZ_FULL
+	}
+};
+
+static struct flash_platform_data shannon_flash_data = {
+	.map_name	= "cfi_probe",
+	.parts		= shannon_partitions,
+	.nr_parts	= ARRAY_SIZE(shannon_partitions),
+};
+
+static struct resource shannon_flash_resource =
+	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_4M);
+
+static struct mcp_plat_data shannon_mcp_data = {
+	.mccr0		= MCCR0_ADM,
+	.sclk_rate	= 11981000,
+};
+
+static struct sa1100fb_mach_info shannon_lcd_info = {
+	.pixclock	= 152500,	.bpp		= 8,
+	.xres		= 640,		.yres		= 480,
+
+	.hsync_len	= 4,		.vsync_len	= 3,
+	.left_margin	= 2,		.upper_margin	= 0,
+	.right_margin	= 1,		.lower_margin	= 0,
+
+	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+
+	.lccr0		= LCCR0_Color | LCCR0_Dual | LCCR0_Pas,
+	.lccr3		= LCCR3_ACBsDiv(512),
+};
+
+static void __init shannon_init(void)
+{
+	sa11x0_ppc_configure_mcp();
+	sa11x0_register_lcd(&shannon_lcd_info);
+	sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
+	sa11x0_register_mcp(&shannon_mcp_data);
+}
+
+static void __init shannon_map_io(void)
+{
+	sa1100_map_io();
+
+	sa1100_register_uart(0, 3);
+	sa1100_register_uart(1, 1);
+
+	Ser1SDCR0 |= SDCR0_SUS;
+	GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
+	GPDR |= GPIO_UART_TXD | SHANNON_GPIO_CODEC_RESET;
+	GPDR &= ~GPIO_UART_RXD;
+	PPAR |= PPAR_UPR;
+
+	/* reset the codec */
+	GPCR = SHANNON_GPIO_CODEC_RESET;
+	GPSR = SHANNON_GPIO_CODEC_RESET;
+}
+
+MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
+	.atag_offset	= 0x100,
+	.map_io		= shannon_map_io,
+	.nr_irqs	= SA1100_NR_IRQS,
+	.init_irq	= sa1100_init_irq,
+	.init_time	= sa1100_timer_init,
+	.init_machine	= shannon_init,
+	.init_late	= sa11x0_init_late,
+	.restart	= sa11x0_restart,
+MACHINE_END