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>

3 files changed, 192 insertions, 0 deletions

diff --git a/kernel/arch/sh/boards/mach-se/7780/Makefile b/kernel/arch/sh/boards/mach-se/7780/Makefile
new file mode 100644
index 000000000..6b88adae3
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-se/7780/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the HITACHI UL SolutionEngine 7780 specific parts of the kernel
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+#
+
+obj-y	 := setup.o irq.o
diff --git a/kernel/arch/sh/boards/mach-se/7780/irq.c b/kernel/arch/sh/boards/mach-se/7780/irq.c
new file mode 100644
index 000000000..d5c9edc17
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-se/7780/irq.c
@@ -0,0 +1,68 @@
+/*
+ * linux/arch/sh/boards/se/7780/irq.c
+ *
+ * Copyright (C) 2006,2007  Nobuhiro Iwamatsu
+ *
+ * Hitachi UL SolutionEngine 7780 Support.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <mach-se/mach/se7780.h>
+
+#define INTC_BASE	0xffd00000
+#define INTC_ICR1	(INTC_BASE+0x1c)
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_se7780_IRQ(void)
+{
+	/* enable all interrupt at FPGA */
+	__raw_writew(0, FPGA_INTMSK1);
+	/* mask SM501 interrupt */
+	__raw_writew((__raw_readw(FPGA_INTMSK1) | 0x0002), FPGA_INTMSK1);
+	/* enable all interrupt at FPGA */
+	__raw_writew(0, FPGA_INTMSK2);
+
+	/* set FPGA INTSEL register */
+	/* FPGA + 0x06 */
+	__raw_writew( ((IRQPIN_SM501 << IRQPOS_SM501) |
+		(IRQPIN_SMC91CX << IRQPOS_SMC91CX)), FPGA_INTSEL1);
+
+	/* FPGA + 0x08 */
+	__raw_writew(((IRQPIN_EXTINT4 << IRQPOS_EXTINT4) |
+		(IRQPIN_EXTINT3 << IRQPOS_EXTINT3) |
+		(IRQPIN_EXTINT2 << IRQPOS_EXTINT2) |
+		(IRQPIN_EXTINT1 << IRQPOS_EXTINT1)), FPGA_INTSEL2);
+
+	/* FPGA + 0x0A */
+	__raw_writew((IRQPIN_PCCPW << IRQPOS_PCCPW), FPGA_INTSEL3);
+
+	plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-7 */
+
+	/* ICR1: detect low level(for 2ndcut) */
+	__raw_writel(0xAAAA0000, INTC_ICR1);
+
+	/*
+	 * FPGA PCISEL register initialize
+	 *
+	 *  CPU  || SLOT1 | SLOT2 | S-ATA | USB
+	 *  -------------------------------------
+	 *  INTA || INTA  | INTD  |  --   | INTB
+	 *  -------------------------------------
+	 *  INTB || INTB  | INTA  |  --   | INTC
+	 *  -------------------------------------
+	 *  INTC || INTC  | INTB  | INTA  |  --
+	 *  -------------------------------------
+	 *  INTD || INTD  | INTC  |  --   | INTA
+	 *  -------------------------------------
+	 */
+	__raw_writew(0x0013, FPGA_PCI_INTSEL1);
+	__raw_writew(0xE402, FPGA_PCI_INTSEL2);
+}
diff --git a/kernel/arch/sh/boards/mach-se/7780/setup.c b/kernel/arch/sh/boards/mach-se/7780/setup.c
new file mode 100644
index 000000000..ae5a1d84f
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-se/7780/setup.c
@@ -0,0 +1,114 @@
+/*
+ * linux/arch/sh/boards/se/7780/setup.c
+ *
+ * Copyright (C) 2006,2007  Nobuhiro Iwamatsu
+ *
+ * Hitachi UL SolutionEngine 7780 Support.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <asm/machvec.h>
+#include <mach-se/mach/se7780.h>
+#include <asm/io.h>
+#include <asm/heartbeat.h>
+
+/* Heartbeat */
+static struct resource heartbeat_resource = {
+	.start  = PA_LED,
+	.end    = PA_LED,
+	.flags  = IORESOURCE_MEM | IORESOURCE_MEM_16BIT,
+};
+
+static struct platform_device heartbeat_device = {
+	.name           = "heartbeat",
+	.id             = -1,
+	.num_resources  = 1,
+	.resource       = &heartbeat_resource,
+};
+
+/* SMC91x */
+static struct resource smc91x_eth_resources[] = {
+	[0] = {
+		.name   = "smc91x-regs" ,
+		.start  = PA_LAN + 0x300,
+		.end    = PA_LAN + 0x300 + 0x10 ,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = SMC_IRQ,
+		.end    = SMC_IRQ,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device smc91x_eth_device = {
+	.name           = "smc91x",
+	.id             = 0,
+	.dev = {
+		.dma_mask               = NULL,         /* don't use dma */
+		.coherent_dma_mask      = 0xffffffff,
+	},
+	.num_resources  = ARRAY_SIZE(smc91x_eth_resources),
+	.resource       = smc91x_eth_resources,
+};
+
+static struct platform_device *se7780_devices[] __initdata = {
+	&heartbeat_device,
+	&smc91x_eth_device,
+};
+
+static int __init se7780_devices_setup(void)
+{
+	return platform_add_devices(se7780_devices,
+		ARRAY_SIZE(se7780_devices));
+}
+device_initcall(se7780_devices_setup);
+
+#define GPIO_PHCR        0xFFEA000E
+#define GPIO_PMSELR      0xFFEA0080
+#define GPIO_PECR        0xFFEA0008
+
+static void __init se7780_setup(char **cmdline_p)
+{
+	/* "SH-Linux" on LED Display */
+	__raw_writew( 'S' , PA_LED_DISP + (DISP_SEL0_ADDR << 1) );
+	__raw_writew( 'H' , PA_LED_DISP + (DISP_SEL1_ADDR << 1) );
+	__raw_writew( '-' , PA_LED_DISP + (DISP_SEL2_ADDR << 1) );
+	__raw_writew( 'L' , PA_LED_DISP + (DISP_SEL3_ADDR << 1) );
+	__raw_writew( 'i' , PA_LED_DISP + (DISP_SEL4_ADDR << 1) );
+	__raw_writew( 'n' , PA_LED_DISP + (DISP_SEL5_ADDR << 1) );
+	__raw_writew( 'u' , PA_LED_DISP + (DISP_SEL6_ADDR << 1) );
+	__raw_writew( 'x' , PA_LED_DISP + (DISP_SEL7_ADDR << 1) );
+
+	printk(KERN_INFO "Hitachi UL Solutions Engine 7780SE03 support.\n");
+
+	/*
+	 * PCI REQ/GNT setting
+	 *   REQ0/GNT0 -> USB
+	 *   REQ1/GNT1 -> PC Card
+	 *   REQ2/GNT2 -> Serial ATA
+	 *   REQ3/GNT3 -> PCI slot
+	 */
+	__raw_writew(0x0213, FPGA_REQSEL);
+
+	/* GPIO setting */
+	__raw_writew(0x0000, GPIO_PECR);
+	__raw_writew(__raw_readw(GPIO_PHCR)&0xfff3, GPIO_PHCR);
+	__raw_writew(0x0c00, GPIO_PMSELR);
+
+	/* iVDR Power ON */
+	__raw_writew(0x0001, FPGA_IVDRPW);
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_se7780 __initmv = {
+	.mv_name                = "Solution Engine 7780" ,
+	.mv_setup               = se7780_setup ,
+	.mv_init_irq		= init_se7780_IRQ,
+};