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, 147 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-sa1100/pleb.c b/kernel/arch/arm/mach-sa1100/pleb.c
new file mode 100644
index 000000000..1525d7b5f
--- /dev/null
+++ b/kernel/arch/arm/mach-sa1100/pleb.c
@@ -0,0 +1,147 @@
+/*
+ * linux/arch/arm/mach-sa1100/pleb.c
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/ioport.h>
+#include <linux/platform_data/sa11x0-serial.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/mtd/partitions.h>
+#include <linux/smc91x.h>
+
+#include <mach/hardware.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+#include <mach/irqs.h>
+
+#include "generic.h"
+
+
+/*
+ * Ethernet IRQ mappings
+ */
+
+#define PLEB_ETH0_P		(0x20000300)	/* Ethernet 0 in PCMCIA0 IO */
+#define PLEB_ETH0_V		(0xf6000300)
+
+#define GPIO_ETH0_IRQ		GPIO_GPIO(21)
+#define GPIO_ETH0_EN		GPIO_GPIO(26)
+
+#define IRQ_GPIO_ETH0_IRQ	IRQ_GPIO21
+
+static struct resource smc91x_resources[] = {
+	[0] = DEFINE_RES_MEM(PLEB_ETH0_P, 0x04000000),
+#if 0 /* Autoprobe instead, to get rising/falling edge characteristic right */
+	[1] = DEFINE_RES_IRQ(IRQ_GPIO_ETH0_IRQ),
+#endif
+};
+
+static struct smc91x_platdata smc91x_platdata = {
+	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
+};
+
+static struct platform_device smc91x_device = {
+	.name		= "smc91x",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(smc91x_resources),
+	.resource	= smc91x_resources,
+	.dev = {
+		.platform_data  = &smc91x_platdata,
+	},
+};
+
+static struct platform_device *devices[] __initdata = {
+	&smc91x_device,
+};
+
+
+/*
+ * Pleb's memory map
+ * has flash memory (typically 4 or 8 meg) selected by
+ * the two SA1100 lowest chip select outputs.
+ */
+static struct resource pleb_flash_resources[] = {
+	[0] = DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_8M),
+	[1] = DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_8M),
+};
+
+
+static struct mtd_partition pleb_partitions[] = {
+	{
+		.name		= "blob",
+		.offset		= 0,
+		.size		= 0x00020000,
+	}, {
+		.name		= "kernel",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 0x000e0000,
+	}, {
+		.name		= "rootfs",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 0x00300000,
+	}
+};
+
+
+static struct flash_platform_data pleb_flash_data = {
+	.map_name = "cfi_probe",
+	.parts = pleb_partitions,
+	.nr_parts = ARRAY_SIZE(pleb_partitions),
+};
+
+
+static void __init pleb_init(void)
+{
+	sa11x0_register_mtd(&pleb_flash_data, pleb_flash_resources,
+			      ARRAY_SIZE(pleb_flash_resources));
+
+
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+
+static void __init pleb_map_io(void)
+{
+	sa1100_map_io();
+
+	sa1100_register_uart(0, 3);
+	sa1100_register_uart(1, 1);
+
+	GAFR |= (GPIO_UART_TXD | GPIO_UART_RXD);
+	GPDR |= GPIO_UART_TXD;
+	GPDR &= ~GPIO_UART_RXD;
+	PPAR |= PPAR_UPR;
+
+	/*
+	 * Fix expansion memory timing for network card
+	 */
+	MECR = ((2<<10) | (2<<5) | (2<<0));
+
+	/*
+	 * Enable the SMC ethernet controller
+	 */
+	GPDR |= GPIO_ETH0_EN;	/* set to output */
+	GPCR  = GPIO_ETH0_EN;	/* clear MCLK (enable smc) */
+
+	GPDR &= ~GPIO_ETH0_IRQ;
+
+	irq_set_irq_type(GPIO_ETH0_IRQ, IRQ_TYPE_EDGE_FALLING);
+}
+
+MACHINE_START(PLEB, "PLEB")
+	.map_io		= pleb_map_io,
+	.nr_irqs	= SA1100_NR_IRQS,
+	.init_irq	= sa1100_init_irq,
+	.init_time	= sa1100_timer_init,
+	.init_machine   = pleb_init,
+	.init_late	= sa11x0_init_late,
+	.restart	= sa11x0_restart,
+MACHINE_END