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>

6 files changed, 330 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-orion5x/include/mach/bridge-regs.h b/kernel/arch/arm/mach-orion5x/include/mach/bridge-regs.h
new file mode 100644
index 000000000..5766e3fbf
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/include/mach/bridge-regs.h
@@ -0,0 +1,37 @@
+/*
+ * arch/arm/mach-orion5x/include/mach/bridge-regs.h
+ *
+ * Orion CPU Bridge Registers
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_BRIDGE_REGS_H
+#define __ASM_ARCH_BRIDGE_REGS_H
+
+#include <mach/orion5x.h>
+
+#define CPU_CONF		(ORION5X_BRIDGE_VIRT_BASE + 0x100)
+
+#define CPU_CTRL		(ORION5X_BRIDGE_VIRT_BASE + 0x104)
+
+#define RSTOUTn_MASK		(ORION5X_BRIDGE_VIRT_BASE + 0x108)
+#define RSTOUTn_MASK_PHYS	(ORION5X_BRIDGE_PHYS_BASE + 0x108)
+
+#define CPU_SOFT_RESET		(ORION5X_BRIDGE_VIRT_BASE + 0x10c)
+
+#define BRIDGE_CAUSE		(ORION5X_BRIDGE_VIRT_BASE + 0x110)
+
+#define POWER_MNG_CTRL_REG	(ORION5X_BRIDGE_VIRT_BASE + 0x11C)
+
+#define BRIDGE_INT_TIMER1_CLR	(~0x0004)
+
+#define MAIN_IRQ_CAUSE		(ORION5X_BRIDGE_VIRT_BASE + 0x200)
+
+#define MAIN_IRQ_MASK		(ORION5X_BRIDGE_VIRT_BASE + 0x204)
+
+#define TIMER_VIRT_BASE		(ORION5X_BRIDGE_VIRT_BASE + 0x300)
+#define TIMER_PHYS_BASE		(ORION5X_BRIDGE_PHYS_BASE + 0x300)
+#endif
diff --git a/kernel/arch/arm/mach-orion5x/include/mach/entry-macro.S b/kernel/arch/arm/mach-orion5x/include/mach/entry-macro.S
new file mode 100644
index 000000000..79eb502a1
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/include/mach/entry-macro.S
@@ -0,0 +1,25 @@
+/*
+ * arch/arm/mach-orion5x/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Orion platforms
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <mach/bridge-regs.h>
+
+	.macro  get_irqnr_preamble, base, tmp
+	ldr	\base, =MAIN_IRQ_CAUSE
+	.endm
+
+	.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+	ldr	\irqstat, [\base, #0]		@ main cause
+	ldr	\tmp, [\base, #(MAIN_IRQ_MASK - MAIN_IRQ_CAUSE)] @ main mask
+	mov	\irqnr, #0			@ default irqnr
+	@ find cause bits that are unmasked
+	ands	\irqstat, \irqstat, \tmp	@ clear Z flag if any
+	clzne	\irqnr,	\irqstat		@ calc irqnr
+	rsbne	\irqnr, \irqnr, #31
+	.endm
diff --git a/kernel/arch/arm/mach-orion5x/include/mach/hardware.h b/kernel/arch/arm/mach-orion5x/include/mach/hardware.h
new file mode 100644
index 000000000..395735482
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/include/mach/hardware.h
@@ -0,0 +1,14 @@
+/*
+ * arch/arm/mach-orion5x/include/mach/hardware.h
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#include "orion5x.h"
+
+#endif
diff --git a/kernel/arch/arm/mach-orion5x/include/mach/irqs.h b/kernel/arch/arm/mach-orion5x/include/mach/irqs.h
new file mode 100644
index 000000000..a6fa9d8f1
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/include/mach/irqs.h
@@ -0,0 +1,60 @@
+/*
+ * arch/arm/mach-orion5x/include/mach/irqs.h
+ *
+ * IRQ definitions for Orion SoC
+ *
+ *  Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ *  This file is licensed under the terms of the GNU General Public
+ *  License version 2. This program is licensed "as is" without any
+ *  warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_IRQS_H
+#define __ASM_ARCH_IRQS_H
+
+/*
+ * Orion Main Interrupt Controller
+ */
+#define IRQ_ORION5X_BRIDGE		0
+#define IRQ_ORION5X_DOORBELL_H2C	1
+#define IRQ_ORION5X_DOORBELL_C2H	2
+#define IRQ_ORION5X_UART0		3
+#define IRQ_ORION5X_UART1		4
+#define IRQ_ORION5X_I2C			5
+#define IRQ_ORION5X_GPIO_0_7		6
+#define IRQ_ORION5X_GPIO_8_15		7
+#define IRQ_ORION5X_GPIO_16_23		8
+#define IRQ_ORION5X_GPIO_24_31		9
+#define IRQ_ORION5X_PCIE0_ERR		10
+#define IRQ_ORION5X_PCIE0_INT		11
+#define IRQ_ORION5X_USB1_CTRL		12
+#define IRQ_ORION5X_DEV_BUS_ERR		14
+#define IRQ_ORION5X_PCI_ERR		15
+#define IRQ_ORION5X_USB_BR_ERR		16
+#define IRQ_ORION5X_USB0_CTRL		17
+#define IRQ_ORION5X_ETH_RX		18
+#define IRQ_ORION5X_ETH_TX		19
+#define IRQ_ORION5X_ETH_MISC		20
+#define IRQ_ORION5X_ETH_SUM		21
+#define IRQ_ORION5X_ETH_ERR		22
+#define IRQ_ORION5X_IDMA_ERR		23
+#define IRQ_ORION5X_IDMA_0		24
+#define IRQ_ORION5X_IDMA_1		25
+#define IRQ_ORION5X_IDMA_2		26
+#define IRQ_ORION5X_IDMA_3		27
+#define IRQ_ORION5X_CESA		28
+#define IRQ_ORION5X_SATA		29
+#define IRQ_ORION5X_XOR0		30
+#define IRQ_ORION5X_XOR1		31
+
+/*
+ * Orion General Purpose Pins
+ */
+#define IRQ_ORION5X_GPIO_START	32
+#define NR_GPIO_IRQS		32
+
+#define NR_IRQS			(IRQ_ORION5X_GPIO_START + NR_GPIO_IRQS)
+
+
+#endif
diff --git a/kernel/arch/arm/mach-orion5x/include/mach/orion5x.h b/kernel/arch/arm/mach-orion5x/include/mach/orion5x.h
new file mode 100644
index 000000000..b78ff3248
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/include/mach/orion5x.h
@@ -0,0 +1,146 @@
+/*
+ * arch/arm/mach-orion5x/include/mach/orion5x.h
+ *
+ * Generic definitions of Orion SoC flavors:
+ *  Orion-1, Orion-VoIP, Orion-NAS, Orion-2, and Orion-1-90.
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_ORION5X_H
+#define __ASM_ARCH_ORION5X_H
+
+/*****************************************************************************
+ * Orion Address Maps
+ *
+ * phys
+ * e0000000	PCIe MEM space
+ * e8000000	PCI MEM space
+ * f0000000	PCIe WA space (Orion-1/Orion-NAS only)
+ * f1000000	on-chip peripheral registers
+ * f2000000	PCIe I/O space
+ * f2100000	PCI I/O space
+ * f2200000	SRAM dedicated for the crypto unit
+ * f4000000	device bus mappings (boot)
+ * fa000000	device bus mappings (cs0)
+ * fa800000	device bus mappings (cs2)
+ * fc000000	device bus mappings (cs0/cs1)
+ *
+ * virt		phys		size
+ * fe000000	f1000000	1M	on-chip peripheral registers
+ * fee00000	f2000000	64K	PCIe I/O space
+ * fee10000	f2100000	64K	PCI I/O space
+ * fd000000	f0000000	16M	PCIe WA space (Orion-1/Orion-NAS only)
+ ****************************************************************************/
+#define ORION5X_REGS_PHYS_BASE		0xf1000000
+#define ORION5X_REGS_VIRT_BASE		IOMEM(0xfe000000)
+#define ORION5X_REGS_SIZE		SZ_1M
+
+#define ORION5X_PCIE_IO_PHYS_BASE	0xf2000000
+#define ORION5X_PCIE_IO_BUS_BASE	0x00000000
+#define ORION5X_PCIE_IO_SIZE		SZ_64K
+
+#define ORION5X_PCI_IO_PHYS_BASE	0xf2100000
+#define ORION5X_PCI_IO_BUS_BASE		0x00010000
+#define ORION5X_PCI_IO_SIZE		SZ_64K
+
+#define ORION5X_SRAM_PHYS_BASE		(0xf2200000)
+#define ORION5X_SRAM_SIZE		SZ_8K
+
+/* Relevant only for Orion-1/Orion-NAS */
+#define ORION5X_PCIE_WA_PHYS_BASE	0xf0000000
+#define ORION5X_PCIE_WA_VIRT_BASE	IOMEM(0xfd000000)
+#define ORION5X_PCIE_WA_SIZE		SZ_16M
+
+#define ORION5X_PCIE_MEM_PHYS_BASE	0xe0000000
+#define ORION5X_PCIE_MEM_SIZE		SZ_128M
+
+#define ORION5X_PCI_MEM_PHYS_BASE	0xe8000000
+#define ORION5X_PCI_MEM_SIZE		SZ_128M
+
+/*******************************************************************************
+ * Orion Registers Map
+ ******************************************************************************/
+
+#define ORION5X_DDR_PHYS_BASE           (ORION5X_REGS_PHYS_BASE + 0x00000)
+#define  ORION5X_DDR_WINS_BASE          (ORION5X_DDR_PHYS_BASE + 0x1500)
+#define  ORION5X_DDR_WINS_SZ            (0x10)
+#define ORION5X_DDR_VIRT_BASE		(ORION5X_REGS_VIRT_BASE + 0x00000)
+#define ORION5X_DEV_BUS_PHYS_BASE	(ORION5X_REGS_PHYS_BASE + 0x10000)
+#define ORION5X_DEV_BUS_VIRT_BASE	(ORION5X_REGS_VIRT_BASE + 0x10000)
+#define ORION5X_DEV_BUS_REG(x)		(ORION5X_DEV_BUS_VIRT_BASE + (x))
+#define  GPIO_VIRT_BASE			ORION5X_DEV_BUS_REG(0x0100)
+#define  SPI_PHYS_BASE			(ORION5X_DEV_BUS_PHYS_BASE + 0x0600)
+#define  I2C_PHYS_BASE			(ORION5X_DEV_BUS_PHYS_BASE + 0x1000)
+#define  UART0_PHYS_BASE		(ORION5X_DEV_BUS_PHYS_BASE + 0x2000)
+#define  UART0_VIRT_BASE		(ORION5X_DEV_BUS_VIRT_BASE + 0x2000)
+#define  UART1_PHYS_BASE		(ORION5X_DEV_BUS_PHYS_BASE + 0x2100)
+#define  UART1_VIRT_BASE		(ORION5X_DEV_BUS_VIRT_BASE + 0x2100)
+
+#define ORION5X_BRIDGE_VIRT_BASE	(ORION5X_REGS_VIRT_BASE + 0x20000)
+#define ORION5X_BRIDGE_PHYS_BASE	(ORION5X_REGS_PHYS_BASE + 0x20000)
+#define  ORION5X_BRIDGE_WINS_BASE       (ORION5X_BRIDGE_PHYS_BASE)
+#define  ORION5X_BRIDGE_WINS_SZ         (0x80)
+
+#define ORION5X_PCI_VIRT_BASE		(ORION5X_REGS_VIRT_BASE + 0x30000)
+
+#define ORION5X_PCIE_VIRT_BASE		(ORION5X_REGS_VIRT_BASE + 0x40000)
+
+#define ORION5X_USB0_PHYS_BASE		(ORION5X_REGS_PHYS_BASE + 0x50000)
+#define ORION5X_USB0_VIRT_BASE		(ORION5X_REGS_VIRT_BASE + 0x50000)
+
+#define ORION5X_XOR_PHYS_BASE		(ORION5X_REGS_PHYS_BASE + 0x60900)
+#define ORION5X_XOR_VIRT_BASE		(ORION5X_REGS_VIRT_BASE + 0x60900)
+
+#define ORION5X_ETH_PHYS_BASE		(ORION5X_REGS_PHYS_BASE + 0x70000)
+#define ORION5X_ETH_VIRT_BASE		(ORION5X_REGS_VIRT_BASE + 0x70000)
+
+#define ORION5X_SATA_PHYS_BASE		(ORION5X_REGS_PHYS_BASE + 0x80000)
+#define ORION5X_SATA_VIRT_BASE		(ORION5X_REGS_VIRT_BASE + 0x80000)
+
+#define ORION5X_CRYPTO_PHYS_BASE	(ORION5X_REGS_PHYS_BASE + 0x90000)
+
+#define ORION5X_USB1_PHYS_BASE		(ORION5X_REGS_PHYS_BASE + 0xa0000)
+#define ORION5X_USB1_VIRT_BASE		(ORION5X_REGS_VIRT_BASE + 0xa0000)
+
+/*******************************************************************************
+ * Device Bus Registers
+ ******************************************************************************/
+#define MPP_0_7_CTRL		ORION5X_DEV_BUS_REG(0x000)
+#define MPP_8_15_CTRL		ORION5X_DEV_BUS_REG(0x004)
+#define MPP_16_19_CTRL		ORION5X_DEV_BUS_REG(0x050)
+#define MPP_DEV_CTRL		ORION5X_DEV_BUS_REG(0x008)
+#define MPP_RESET_SAMPLE	ORION5X_DEV_BUS_REG(0x010)
+#define DEV_BANK_0_PARAM	ORION5X_DEV_BUS_REG(0x45c)
+#define DEV_BANK_1_PARAM	ORION5X_DEV_BUS_REG(0x460)
+#define DEV_BANK_2_PARAM	ORION5X_DEV_BUS_REG(0x464)
+#define DEV_BANK_BOOT_PARAM	ORION5X_DEV_BUS_REG(0x46c)
+#define DEV_BUS_CTRL		ORION5X_DEV_BUS_REG(0x4c0)
+#define DEV_BUS_INT_CAUSE	ORION5X_DEV_BUS_REG(0x4d0)
+#define DEV_BUS_INT_MASK	ORION5X_DEV_BUS_REG(0x4d4)
+
+/*******************************************************************************
+ * Supported Devices & Revisions
+ ******************************************************************************/
+/* Orion-1 (88F5181) and Orion-VoIP (88F5181L) */
+#define MV88F5181_DEV_ID	0x5181
+#define MV88F5181_REV_B1	3
+#define MV88F5181L_REV_A0	8
+#define MV88F5181L_REV_A1	9
+/* Orion-NAS (88F5182) */
+#define MV88F5182_DEV_ID	0x5182
+#define MV88F5182_REV_A2	2
+/* Orion-2 (88F5281) */
+#define MV88F5281_DEV_ID	0x5281
+#define MV88F5281_REV_D0	4
+#define MV88F5281_REV_D1	5
+#define MV88F5281_REV_D2	6
+/* Orion-1-90 (88F6183) */
+#define MV88F6183_DEV_ID	0x6183
+#define MV88F6183_REV_B0	3
+
+#endif
diff --git a/kernel/arch/arm/mach-orion5x/include/mach/uncompress.h b/kernel/arch/arm/mach-orion5x/include/mach/uncompress.h
new file mode 100644
index 000000000..abd26b542
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/include/mach/uncompress.h
@@ -0,0 +1,48 @@
+/*
+ * arch/arm/mach-orion5x/include/mach/uncompress.h
+ *
+ * Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/serial_reg.h>
+#include <mach/orion5x.h>
+
+#define SERIAL_BASE	((unsigned char *)UART0_PHYS_BASE)
+
+static void putc(const char c)
+{
+	unsigned char *base = SERIAL_BASE;
+	int i;
+
+	for (i = 0; i < 0x1000; i++) {
+		if (base[UART_LSR << 2] & UART_LSR_THRE)
+			break;
+		barrier();
+	}
+
+	base[UART_TX << 2] = c;
+}
+
+static void flush(void)
+{
+	unsigned char *base = SERIAL_BASE;
+	unsigned char mask;
+	int i;
+
+	mask = UART_LSR_TEMT | UART_LSR_THRE;
+
+	for (i = 0; i < 0x1000; i++) {
+		if ((base[UART_LSR << 2] & mask) == mask)
+			break;
+		barrier();
+	}
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()