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, 577 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-pxa/trizeps4.c b/kernel/arch/arm/mach-pxa/trizeps4.c
new file mode 100644
index 000000000..872dcb20e
--- /dev/null
+++ b/kernel/arch/arm/mach-pxa/trizeps4.c
@@ -0,0 +1,577 @@
+/*
+ *  linux/arch/arm/mach-pxa/trizeps4.c
+ *
+ *  Support for the Keith und Koep Trizeps4 Module Platform.
+ *
+ *  Author:	Jürgen Schindele
+ *  Created:	20 02, 2006
+ *  Copyright:	Jürgen Schindele
+ *
+ *  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/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/export.h>
+#include <linux/sched.h>
+#include <linux/bitops.h>
+#include <linux/fb.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/dm9000.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/partitions.h>
+#include <linux/i2c/pxa-i2c.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/sizes.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/flash.h>
+
+#include <mach/pxa27x.h>
+#include <mach/trizeps4.h>
+#include <mach/audio.h>
+#include <linux/platform_data/video-pxafb.h>
+#include <linux/platform_data/mmc-pxamci.h>
+#include <linux/platform_data/irda-pxaficp.h>
+#include <linux/platform_data/usb-ohci-pxa27x.h>
+#include <mach/smemc.h>
+
+#include "generic.h"
+#include "devices.h"
+
+/*	comment out the following line if you want to use the
+ *	Standard UART from PXA for serial / irda transmission
+ *	and acivate it if you have status leds connected */
+#define STATUS_LEDS_ON_STUART_PINS 1
+
+/*****************************************************************************
+ * MultiFunctionPins of CPU
+ *****************************************************************************/
+static unsigned long trizeps4_pin_config[] __initdata = {
+	/* Chip Selects */
+	GPIO15_nCS_1,		/* DiskOnChip CS */
+	GPIO93_GPIO,		/* TRIZEPS4_DOC_IRQ */
+	GPIO94_GPIO,		/* DOC lock */
+
+	GPIO78_nCS_2,		/* DM9000 CS */
+	GPIO101_GPIO,		/* TRIZEPS4_ETH_IRQ */
+
+	GPIO79_nCS_3,		/* Logic CS */
+	GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,	/* Logic irq */
+
+	/* AC97 */
+	GPIO28_AC97_BITCLK,
+	GPIO29_AC97_SDATA_IN_0,
+	GPIO30_AC97_SDATA_OUT,
+	GPIO31_AC97_SYNC,
+
+	/* LCD - 16bpp Active TFT */
+	GPIOxx_LCD_TFT_16BPP,
+
+	/* UART */
+	GPIO9_FFUART_CTS,
+	GPIO10_FFUART_DCD,
+	GPIO16_FFUART_TXD,
+	GPIO33_FFUART_DSR,
+	GPIO38_FFUART_RI,
+	GPIO82_FFUART_DTR,
+	GPIO83_FFUART_RTS,
+	GPIO96_FFUART_RXD,
+
+	GPIO42_BTUART_RXD,
+	GPIO43_BTUART_TXD,
+	GPIO44_BTUART_CTS,
+	GPIO45_BTUART_RTS,
+#ifdef STATUS_LEDS_ON_STUART_PINS
+	GPIO46_GPIO,
+	GPIO47_GPIO,
+#else
+	GPIO46_STUART_RXD,
+	GPIO47_STUART_TXD,
+#endif
+	/* PCMCIA */
+	GPIO11_GPIO,			/* TRIZEPS4_CD_IRQ */
+	GPIO13_GPIO,			/* TRIZEPS4_READY_NINT */
+	GPIO48_nPOE,
+	GPIO49_nPWE,
+	GPIO50_nPIOR,
+	GPIO51_nPIOW,
+	GPIO54_nPCE_2,
+	GPIO55_nPREG,
+	GPIO56_nPWAIT,
+	GPIO57_nIOIS16,
+	GPIO102_nPCE_1,
+	GPIO104_PSKTSEL,
+
+	/* MultiMediaCard */
+	GPIO32_MMC_CLK,
+	GPIO92_MMC_DAT_0,
+	GPIO109_MMC_DAT_1,
+	GPIO110_MMC_DAT_2,
+	GPIO111_MMC_DAT_3,
+	GPIO112_MMC_CMD,
+	GPIO12_GPIO,			/* TRIZEPS4_MMC_IRQ */
+
+	/* USB OHCI */
+	GPIO88_USBH1_PWR,		/* USBHPWR1 */
+	GPIO89_USBH1_PEN,		/* USBHPEN1 */
+
+	/* I2C */
+	GPIO117_I2C_SCL,
+	GPIO118_I2C_SDA,
+};
+
+static unsigned long trizeps4wl_pin_config[] __initdata = {
+	/* SSP 2 */
+	GPIO14_SSP2_SFRM,
+	GPIO19_SSP2_SCLK,
+	GPIO53_GPIO,			/* TRIZEPS4_SPI_IRQ */
+	GPIO86_SSP2_RXD,
+	GPIO87_SSP2_TXD,
+};
+
+/****************************************************************************
+ * ONBOARD FLASH
+ ****************************************************************************/
+static struct mtd_partition trizeps4_partitions[] = {
+	{
+		.name =		"Bootloader",
+		.offset =	0x00000000,
+		.size =		0x00040000,
+		.mask_flags =	MTD_WRITEABLE  /* force read-only */
+	}, {
+		.name =		"Backup",
+		.offset =	0x00040000,
+		.size =		0x00040000,
+	}, {
+		.name =		"Image",
+		.offset =	0x00080000,
+		.size =		0x01080000,
+	}, {
+		.name =		"IPSM",
+		.offset =	0x01100000,
+		.size =		0x00e00000,
+	}, {
+		.name =		"Registry",
+		.offset =	0x01f00000,
+		.size =		MTDPART_SIZ_FULL,
+	}
+};
+
+static struct physmap_flash_data trizeps4_flash_data[] = {
+	{
+		.width		= 4,			/* bankwidth in bytes */
+		.parts		= trizeps4_partitions,
+		.nr_parts	= ARRAY_SIZE(trizeps4_partitions)
+	}
+};
+
+static struct resource flash_resource = {
+	.start	= PXA_CS0_PHYS,
+	.end	= PXA_CS0_PHYS + SZ_32M - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev = {
+		.platform_data = trizeps4_flash_data,
+	},
+	.resource = &flash_resource,
+	.num_resources = 1,
+};
+
+/****************************************************************************
+ * DAVICOM DM9000 Ethernet
+ ****************************************************************************/
+static struct resource dm9000_resources[] = {
+	[0] = {
+		.start	= TRIZEPS4_ETH_PHYS+0x300,
+		.end	= TRIZEPS4_ETH_PHYS+0x400-1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= TRIZEPS4_ETH_PHYS+0x8300,
+		.end	= TRIZEPS4_ETH_PHYS+0x8400-1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= TRIZEPS4_ETH_IRQ,
+		.end	= TRIZEPS4_ETH_IRQ,
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
+	},
+};
+
+static struct dm9000_plat_data tri_dm9000_platdata = {
+	.flags		= DM9000_PLATF_32BITONLY,
+};
+
+static struct platform_device dm9000_device = {
+	.name		= "dm9000",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(dm9000_resources),
+	.resource	= dm9000_resources,
+	.dev		= {
+		.platform_data = &tri_dm9000_platdata,
+	}
+};
+
+/****************************************************************************
+ * LED's on GPIO pins of PXA
+ ****************************************************************************/
+static struct gpio_led trizeps4_led[] = {
+#ifdef STATUS_LEDS_ON_STUART_PINS
+	{
+		.name = "led0:orange:heartbeat",	/* */
+		.default_trigger = "heartbeat",
+		.gpio = GPIO_HEARTBEAT_LED,
+		.active_low = 1,
+	},
+	{
+		.name = "led1:yellow:cpubusy",		/* */
+		.default_trigger = "cpu-busy",
+		.gpio = GPIO_SYS_BUSY_LED,
+		.active_low = 1,
+	},
+#endif
+};
+
+static struct gpio_led_platform_data trizeps4_led_data = {
+	.leds		= trizeps4_led,
+	.num_leds	= ARRAY_SIZE(trizeps4_led),
+};
+
+static struct platform_device leds_devices = {
+	.name		= "leds-gpio",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &trizeps4_led_data,
+	},
+};
+
+static struct platform_device *trizeps4_devices[] __initdata = {
+	&flash_device,
+	&dm9000_device,
+	&leds_devices,
+};
+
+static struct platform_device *trizeps4wl_devices[] __initdata = {
+	&flash_device,
+	&leds_devices,
+};
+
+static short trizeps_conxs_bcr;
+
+/* PCCARD power switching supports only 3,3V */
+void board_pcmcia_power(int power)
+{
+	if (power) {
+		/* switch power on, put in reset and enable buffers */
+		trizeps_conxs_bcr |= power;
+		trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
+		trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
+		BCR_writew(trizeps_conxs_bcr);
+		/* wait a little */
+		udelay(2000);
+		/* take reset away */
+		trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
+		BCR_writew(trizeps_conxs_bcr);
+		udelay(2000);
+	} else {
+		/* put in reset */
+		trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
+		BCR_writew(trizeps_conxs_bcr);
+		udelay(1000);
+		/* switch power off */
+		trizeps_conxs_bcr &= ~0xf;
+		BCR_writew(trizeps_conxs_bcr);
+	}
+	pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
+			trizeps_conxs_bcr);
+}
+EXPORT_SYMBOL(board_pcmcia_power);
+
+/* backlight power switching for LCD panel */
+static void board_backlight_power(int on)
+{
+	if (on)
+		trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
+	else
+		trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
+
+	pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
+			trizeps_conxs_bcr);
+	BCR_writew(trizeps_conxs_bcr);
+}
+
+/* a I2C based RTC is known on CONXS board */
+static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
+	{ I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
+};
+
+/****************************************************************************
+ * MMC card slot external to module
+ ****************************************************************************/
+static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
+		void *data)
+{
+	int err;
+
+	err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
+			  IRQF_TRIGGER_RISING, "MMC card detect", data);
+	if (err) {
+		printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
+						"MMC card detect IRQ\n");
+		return -1;
+	}
+	return 0;
+}
+
+static void trizeps4_mci_exit(struct device *dev, void *data)
+{
+	free_irq(TRIZEPS4_MMC_IRQ, data);
+}
+
+static struct pxamci_platform_data trizeps4_mci_platform_data = {
+	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
+	.detect_delay_ms= 10,
+	.init 		= trizeps4_mci_init,
+	.exit		= trizeps4_mci_exit,
+	.get_ro		= NULL,	/* write-protection not supported */
+	.setpower 	= NULL,	/* power-switching not supported */
+	.gpio_card_detect = -1,
+	.gpio_card_ro	= -1,
+	.gpio_power	= -1,
+};
+
+/****************************************************************************
+ * IRDA mode switching on stuart
+ ****************************************************************************/
+#ifndef STATUS_LEDS_ON_STUART_PINS
+static short trizeps_conxs_ircr;
+
+static int trizeps4_irda_startup(struct device *dev)
+{
+	trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
+	IRCR_writew(trizeps_conxs_ircr);
+	return 0;
+}
+
+static void trizeps4_irda_shutdown(struct device *dev)
+{
+	trizeps_conxs_ircr |= ConXS_IRCR_SD;
+	IRCR_writew(trizeps_conxs_ircr);
+}
+
+static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	/* Switch mode */
+	if (mode & IR_SIRMODE)
+		trizeps_conxs_ircr &= ~ConXS_IRCR_MODE;	/* Slow mode */
+	else if (mode & IR_FIRMODE)
+		trizeps_conxs_ircr |= ConXS_IRCR_MODE;	/* Fast mode */
+
+	/* Switch power */
+	if (mode & IR_OFF)
+		trizeps_conxs_ircr |= ConXS_IRCR_SD;
+	else
+		trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
+
+	IRCR_writew(trizeps_conxs_ircr);
+	local_irq_restore(flags);
+
+	pxa2xx_transceiver_mode(dev, mode);
+}
+
+static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
+	.gpio_pwdown		= -1,
+	.transceiver_cap	= IR_SIRMODE | IR_FIRMODE | IR_OFF,
+	.transceiver_mode	= trizeps4_irda_transceiver_mode,
+	.startup		= trizeps4_irda_startup,
+	.shutdown		= trizeps4_irda_shutdown,
+};
+#endif
+
+/****************************************************************************
+ * OHCI USB port
+ ****************************************************************************/
+static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
+	.port_mode	= PMM_PERPORT_MODE,
+	.flags		= ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
+};
+
+static struct map_desc trizeps4_io_desc[] __initdata = {
+	{ 	/* ConXS CFSR */
+		.virtual	= TRIZEPS4_CFSR_VIRT,
+		.pfn		= __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
+		.length		= 0x00001000,
+		.type		= MT_DEVICE
+	},
+	{	/* ConXS BCR */
+		.virtual	= TRIZEPS4_BOCR_VIRT,
+		.pfn		= __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
+		.length		= 0x00001000,
+		.type		= MT_DEVICE
+	},
+	{ 	/* ConXS IRCR */
+		.virtual	= TRIZEPS4_IRCR_VIRT,
+		.pfn		= __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
+		.length		= 0x00001000,
+		.type		= MT_DEVICE
+	},
+	{	/* ConXS DCR */
+		.virtual	= TRIZEPS4_DICR_VIRT,
+		.pfn		= __phys_to_pfn(TRIZEPS4_DICR_PHYS),
+		.length		= 0x00001000,
+		.type		= MT_DEVICE
+	},
+	{	/* ConXS UPSR */
+		.virtual	= TRIZEPS4_UPSR_VIRT,
+		.pfn		= __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
+		.length		= 0x00001000,
+		.type		= MT_DEVICE
+	}
+};
+
+static struct pxafb_mode_info sharp_lcd_mode = {
+	.pixclock	= 78000,
+	.xres		= 640,
+	.yres		= 480,
+	.bpp		= 8,
+	.hsync_len	= 4,
+	.left_margin	= 4,
+	.right_margin	= 4,
+	.vsync_len	= 2,
+	.upper_margin	= 0,
+	.lower_margin	= 0,
+	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+	.cmap_greyscale	= 0,
+};
+
+static struct pxafb_mach_info sharp_lcd = {
+	.modes		= &sharp_lcd_mode,
+	.num_modes	= 1,
+	.lcd_conn	= LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
+	.cmap_inverse	= 0,
+	.cmap_static	= 0,
+	.pxafb_backlight_power = board_backlight_power,
+};
+
+static struct pxafb_mode_info toshiba_lcd_mode = {
+	.pixclock	= 39720,
+	.xres		= 640,
+	.yres		= 480,
+	.bpp		= 8,
+	.hsync_len	= 63,
+	.left_margin	= 12,
+	.right_margin	= 12,
+	.vsync_len	= 4,
+	.upper_margin	= 32,
+	.lower_margin	= 10,
+	.sync		= 0,
+	.cmap_greyscale	= 0,
+};
+
+static struct pxafb_mach_info toshiba_lcd = {
+	.modes		= &toshiba_lcd_mode,
+	.num_modes	= 1,
+	.lcd_conn	= (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
+	.cmap_inverse	= 0,
+	.cmap_static	= 0,
+	.pxafb_backlight_power = board_backlight_power,
+};
+
+static void __init trizeps4_init(void)
+{
+	pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
+	if (machine_is_trizeps4wl()) {
+		pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
+		platform_add_devices(trizeps4wl_devices,
+					ARRAY_SIZE(trizeps4wl_devices));
+	} else {
+		platform_add_devices(trizeps4_devices,
+					ARRAY_SIZE(trizeps4_devices));
+	}
+
+	pxa_set_ffuart_info(NULL);
+	pxa_set_btuart_info(NULL);
+	pxa_set_stuart_info(NULL);
+
+	if (0)	/* dont know how to determine LCD */
+		pxa_set_fb_info(NULL, &sharp_lcd);
+	else
+		pxa_set_fb_info(NULL, &toshiba_lcd);
+
+	pxa_set_mci_info(&trizeps4_mci_platform_data);
+#ifndef STATUS_LEDS_ON_STUART_PINS
+	pxa_set_ficp_info(&trizeps4_ficp_platform_data);
+#endif
+	pxa_set_ohci_info(&trizeps4_ohci_platform_data);
+	pxa_set_ac97_info(NULL);
+	pxa_set_i2c_info(NULL);
+	i2c_register_board_info(0, trizeps4_i2c_devices,
+					ARRAY_SIZE(trizeps4_i2c_devices));
+
+	/* this is the reset value */
+	trizeps_conxs_bcr = 0x00A0;
+
+	BCR_writew(trizeps_conxs_bcr);
+	board_backlight_power(1);
+}
+
+static void __init trizeps4_map_io(void)
+{
+	pxa27x_map_io();
+	iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
+
+	if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
+		/* if flash is 16 bit wide its a Trizeps4 WL */
+		__machine_arch_type = MACH_TYPE_TRIZEPS4WL;
+		trizeps4_flash_data[0].width = 2;
+	} else {
+		/* if flash is 32 bit wide its a Trizeps4 */
+		__machine_arch_type = MACH_TYPE_TRIZEPS4;
+		trizeps4_flash_data[0].width = 4;
+	}
+}
+
+MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
+	/* MAINTAINER("Jürgen Schindele") */
+	.atag_offset	= 0x100,
+	.init_machine	= trizeps4_init,
+	.map_io		= trizeps4_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(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
+	/* MAINTAINER("Jürgen Schindele") */
+	.atag_offset	= 0x100,
+	.init_machine	= trizeps4_init,
+	.map_io		= trizeps4_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