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, 330 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-pxa/colibri-pxa270.c b/kernel/arch/arm/mach-pxa/colibri-pxa270.c
new file mode 100644
index 000000000..5f9d9303b
--- /dev/null
+++ b/kernel/arch/arm/mach-pxa/colibri-pxa270.c
@@ -0,0 +1,330 @@
+/*
+ *  linux/arch/arm/mach-pxa/colibri-pxa270.c
+ *
+ *  Support for Toradex PXA270 based Colibri module
+ *  Daniel Mack <daniel@caiaq.de>
+ *  Marek Vasut <marek.vasut@gmail.com>
+ *
+ *  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.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/platform_device.h>
+#include <linux/ucb1400.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach-types.h>
+#include <asm/sizes.h>
+
+#include <mach/audio.h>
+#include <mach/colibri.h>
+#include <mach/pxa27x.h>
+
+#include "devices.h"
+#include "generic.h"
+
+/******************************************************************************
+ * Evaluation board MFP
+ ******************************************************************************/
+#ifdef	 CONFIG_MACH_COLIBRI_EVALBOARD
+static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
+	/* MMC */
+	GPIO32_MMC_CLK,
+	GPIO92_MMC_DAT_0,
+	GPIO109_MMC_DAT_1,
+	GPIO110_MMC_DAT_2,
+	GPIO111_MMC_DAT_3,
+	GPIO112_MMC_CMD,
+	GPIO0_GPIO,	/* SD detect */
+
+	/* FFUART */
+	GPIO39_FFUART_TXD,
+	GPIO34_FFUART_RXD,
+
+	/* UHC */
+	GPIO88_USBH1_PWR,
+	GPIO89_USBH1_PEN,
+	GPIO119_USBH2_PWR,
+	GPIO120_USBH2_PEN,
+
+	/* PCMCIA */
+	GPIO85_nPCE_1,
+	GPIO54_nPCE_2,
+	GPIO55_nPREG,
+	GPIO50_nPIOR,
+	GPIO51_nPIOW,
+	GPIO49_nPWE,
+	GPIO48_nPOE,
+	GPIO57_nIOIS16,
+	GPIO56_nPWAIT,
+	GPIO104_PSKTSEL,
+	GPIO53_GPIO,	/* RESET */
+	GPIO83_GPIO,	/* BVD1 */
+	GPIO82_GPIO,	/* BVD2 */
+	GPIO1_GPIO,	/* READY */
+	GPIO84_GPIO,	/* DETECT */
+	GPIO107_GPIO,	/* PPEN */
+
+	/* I2C */
+	GPIO117_I2C_SCL,
+	GPIO118_I2C_SDA,
+};
+#else
+static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
+#endif
+
+#ifdef	CONFIG_MACH_COLIBRI_PXA270_INCOME
+static mfp_cfg_t income_pin_config[] __initdata = {
+	/* MMC */
+	GPIO32_MMC_CLK,
+	GPIO92_MMC_DAT_0,
+	GPIO109_MMC_DAT_1,
+	GPIO110_MMC_DAT_2,
+	GPIO111_MMC_DAT_3,
+	GPIO112_MMC_CMD,
+	GPIO0_GPIO,	/* SD detect */
+	GPIO1_GPIO,	/* SD read-only */
+
+	/* FFUART */
+	GPIO39_FFUART_TXD,
+	GPIO34_FFUART_RXD,
+
+	/* BFUART */
+	GPIO42_BTUART_RXD,
+	GPIO43_BTUART_TXD,
+	GPIO45_BTUART_RTS,
+
+	/* STUART */
+	GPIO46_STUART_RXD,
+	GPIO47_STUART_TXD,
+
+	/* UHC */
+	GPIO88_USBH1_PWR,
+	GPIO89_USBH1_PEN,
+
+	/* LCD */
+	GPIOxx_LCD_TFT_16BPP,
+
+	/* PWM */
+	GPIO16_PWM0_OUT,
+
+	/* I2C */
+	GPIO117_I2C_SCL,
+	GPIO118_I2C_SDA,
+
+	/* LED */
+	GPIO54_GPIO,	/* LED A */
+	GPIO55_GPIO,	/* LED B */
+};
+#else
+static mfp_cfg_t income_pin_config[] __initdata = {};
+#endif
+
+/******************************************************************************
+ * Pin configuration
+ ******************************************************************************/
+static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
+	/* Ethernet */
+	GPIO78_nCS_2,	/* Ethernet CS */
+	GPIO114_GPIO,	/* Ethernet IRQ */
+
+	/* AC97 */
+	GPIO28_AC97_BITCLK,
+	GPIO29_AC97_SDATA_IN_0,
+	GPIO30_AC97_SDATA_OUT,
+	GPIO31_AC97_SYNC,
+	GPIO95_AC97_nRESET,
+	GPIO98_AC97_SYSCLK,
+	GPIO113_GPIO,	/* Touchscreen IRQ */
+};
+
+/******************************************************************************
+ * NOR Flash
+ ******************************************************************************/
+#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
+static struct mtd_partition colibri_partitions[] = {
+	{
+		.name =		"Bootloader",
+		.offset =	0x00000000,
+		.size =		0x00040000,
+		.mask_flags =	MTD_WRITEABLE	/* force read-only */
+	}, {
+		.name =		"Kernel",
+		.offset =	0x00040000,
+		.size =		0x00400000,
+		.mask_flags =	0
+	}, {
+		.name =		"Rootfs",
+		.offset =	0x00440000,
+		.size =		MTDPART_SIZ_FULL,
+		.mask_flags =	0
+	}
+};
+
+static struct physmap_flash_data colibri_flash_data[] = {
+	{
+		.width		= 4,			/* bankwidth in bytes */
+		.parts		= colibri_partitions,
+		.nr_parts	= ARRAY_SIZE(colibri_partitions)
+	}
+};
+
+static struct resource colibri_pxa270_flash_resource = {
+	.start	= PXA_CS0_PHYS,
+	.end	= PXA_CS0_PHYS + SZ_32M - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device colibri_pxa270_flash_device = {
+	.name	= "physmap-flash",
+	.id	= 0,
+	.dev 	= {
+		.platform_data = colibri_flash_data,
+	},
+	.resource = &colibri_pxa270_flash_resource,
+	.num_resources = 1,
+};
+
+static void __init colibri_pxa270_nor_init(void)
+{
+	platform_device_register(&colibri_pxa270_flash_device);
+}
+#else
+static inline void colibri_pxa270_nor_init(void) {}
+#endif
+
+/******************************************************************************
+ * Ethernet
+ ******************************************************************************/
+#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+static struct resource colibri_pxa270_dm9000_resources[] = {
+	{
+		.start	= PXA_CS2_PHYS,
+		.end	= PXA_CS2_PHYS + 3,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= PXA_CS2_PHYS + 4,
+		.end	= PXA_CS2_PHYS + 4 + 500,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
+		.end	= PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
+		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
+	},
+};
+
+static struct platform_device colibri_pxa270_dm9000_device = {
+	.name		= "dm9000",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(colibri_pxa270_dm9000_resources),
+	.resource	= colibri_pxa270_dm9000_resources,
+};
+
+static void __init colibri_pxa270_eth_init(void)
+{
+	platform_device_register(&colibri_pxa270_dm9000_device);
+}
+#else
+static inline void colibri_pxa270_eth_init(void) {}
+#endif
+
+/******************************************************************************
+ * Audio and Touchscreen
+ ******************************************************************************/
+#if	defined(CONFIG_TOUCHSCREEN_UCB1400) || \
+	defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
+static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
+	.reset_gpio	= 95,
+};
+
+static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
+	.irq		= PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
+};
+
+static struct platform_device colibri_pxa270_ucb1400_device = {
+	.name		= "ucb1400_core",
+	.id		= -1,
+	.dev		= {
+		.platform_data = &colibri_pxa270_ucb1400_pdata,
+	},
+};
+
+static void __init colibri_pxa270_tsc_init(void)
+{
+	pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
+	platform_device_register(&colibri_pxa270_ucb1400_device);
+}
+#else
+static inline void colibri_pxa270_tsc_init(void) {}
+#endif
+
+static int colibri_pxa270_baseboard;
+core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
+
+static void __init colibri_pxa270_init(void)
+{
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
+
+	colibri_pxa270_nor_init();
+	colibri_pxa270_eth_init();
+	colibri_pxa270_tsc_init();
+
+	switch (colibri_pxa270_baseboard) {
+	case COLIBRI_EVALBOARD:
+		pxa2xx_mfp_config(ARRAY_AND_SIZE(
+			colibri_pxa270_evalboard_pin_config));
+		colibri_evalboard_init();
+		break;
+	case COLIBRI_PXA270_INCOME:
+		pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
+		colibri_pxa270_income_boardinit();
+		break;
+	default:
+		printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
+				colibri_pxa270_baseboard);
+	}
+}
+
+/* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
+ * with the INCOME mach type or with COLIBRI and the kernel parameter
+ * "colibri_pxa270_baseboard=1"
+ */
+static void __init colibri_pxa270_income_init(void)
+{
+	colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
+	colibri_pxa270_init();
+}
+
+MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
+	.atag_offset	= 0x100,
+	.init_machine	= colibri_pxa270_init,
+	.map_io		= pxa27x_map_io,
+	.nr_irqs	= PXA_NR_IRQS,
+	.init_irq	= pxa27x_init_irq,
+	.handle_irq	= pxa27x_handle_irq,
+	.init_time	= pxa_timer_init,
+	.restart	= pxa_restart,
+MACHINE_END
+
+MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
+	.atag_offset	= 0x100,
+	.init_machine	= colibri_pxa270_income_init,
+	.map_io		= pxa27x_map_io,
+	.nr_irqs	= PXA_NR_IRQS,
+	.init_irq	= pxa27x_init_irq,
+	.handle_irq	= pxa27x_handle_irq,
+	.init_time	= pxa_timer_init,
+	.restart	= pxa_restart,
+MACHINE_END
+