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, 551 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-imx/mach-mx27_3ds.c b/kernel/arch/arm/mach-imx/mach-mx27_3ds.c
new file mode 100644
index 000000000..9ef4640f3
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -0,0 +1,551 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * This machine is known as:
+ *  - i.MX27 3-Stack Development System
+ *  - i.MX27 Platform Development Kit (i.MX27 PDK)
+ */
+
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/delay.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/spi/spi.h>
+#include <linux/regulator/machine.h>
+#include <linux/spi/l4f00242t03.h>
+
+#include <media/soc_camera.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include "3ds_debugboard.h"
+#include "common.h"
+#include "devices-imx27.h"
+#include "ehci.h"
+#include "hardware.h"
+#include "iomux-mx27.h"
+#include "ulpi.h"
+
+#define SD1_EN_GPIO		IMX_GPIO_NR(2, 25)
+#define OTG_PHY_RESET_GPIO	IMX_GPIO_NR(2, 23)
+#define SPI2_SS0		IMX_GPIO_NR(4, 21)
+#define PMIC_INT		IMX_GPIO_NR(3, 14)
+#define SPI1_SS0		IMX_GPIO_NR(4, 28)
+#define SD1_CD			IMX_GPIO_NR(2, 26)
+#define LCD_RESET		IMX_GPIO_NR(1, 3)
+#define LCD_ENABLE		IMX_GPIO_NR(1, 31)
+#define CSI_PWRDWN		IMX_GPIO_NR(4, 19)
+#define CSI_RESET		IMX_GPIO_NR(3, 6)
+
+static const int mx27pdk_pins[] __initconst = {
+	/* UART1 */
+	PE12_PF_UART1_TXD,
+	PE13_PF_UART1_RXD,
+	PE14_PF_UART1_CTS,
+	PE15_PF_UART1_RTS,
+	/* FEC */
+	PD0_AIN_FEC_TXD0,
+	PD1_AIN_FEC_TXD1,
+	PD2_AIN_FEC_TXD2,
+	PD3_AIN_FEC_TXD3,
+	PD4_AOUT_FEC_RX_ER,
+	PD5_AOUT_FEC_RXD1,
+	PD6_AOUT_FEC_RXD2,
+	PD7_AOUT_FEC_RXD3,
+	PD8_AF_FEC_MDIO,
+	PD9_AIN_FEC_MDC,
+	PD10_AOUT_FEC_CRS,
+	PD11_AOUT_FEC_TX_CLK,
+	PD12_AOUT_FEC_RXD0,
+	PD13_AOUT_FEC_RX_DV,
+	PD14_AOUT_FEC_RX_CLK,
+	PD15_AOUT_FEC_COL,
+	PD16_AIN_FEC_TX_ER,
+	PF23_AIN_FEC_TX_EN,
+	/* SDHC1 */
+	PE18_PF_SD1_D0,
+	PE19_PF_SD1_D1,
+	PE20_PF_SD1_D2,
+	PE21_PF_SD1_D3,
+	PE22_PF_SD1_CMD,
+	PE23_PF_SD1_CLK,
+	SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
+	/* OTG */
+	OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
+	PC7_PF_USBOTG_DATA5,
+	PC8_PF_USBOTG_DATA6,
+	PC9_PF_USBOTG_DATA0,
+	PC10_PF_USBOTG_DATA2,
+	PC11_PF_USBOTG_DATA1,
+	PC12_PF_USBOTG_DATA4,
+	PC13_PF_USBOTG_DATA3,
+	PE0_PF_USBOTG_NXT,
+	PE1_PF_USBOTG_STP,
+	PE2_PF_USBOTG_DIR,
+	PE24_PF_USBOTG_CLK,
+	PE25_PF_USBOTG_DATA7,
+	/* CSPI1 */
+	PD31_PF_CSPI1_MOSI,
+	PD30_PF_CSPI1_MISO,
+	PD29_PF_CSPI1_SCLK,
+	PD25_PF_CSPI1_RDY,
+	SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
+	/* CSPI2 */
+	PD22_PF_CSPI2_SCLK,
+	PD23_PF_CSPI2_MISO,
+	PD24_PF_CSPI2_MOSI,
+	SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
+	/* I2C1 */
+	PD17_PF_I2C_DATA,
+	PD18_PF_I2C_CLK,
+	/* PMIC INT */
+	PMIC_INT | GPIO_GPIO | GPIO_IN,
+	/* LCD */
+	PA5_PF_LSCLK,
+	PA6_PF_LD0,
+	PA7_PF_LD1,
+	PA8_PF_LD2,
+	PA9_PF_LD3,
+	PA10_PF_LD4,
+	PA11_PF_LD5,
+	PA12_PF_LD6,
+	PA13_PF_LD7,
+	PA14_PF_LD8,
+	PA15_PF_LD9,
+	PA16_PF_LD10,
+	PA17_PF_LD11,
+	PA18_PF_LD12,
+	PA19_PF_LD13,
+	PA20_PF_LD14,
+	PA21_PF_LD15,
+	PA22_PF_LD16,
+	PA23_PF_LD17,
+	PA28_PF_HSYNC,
+	PA29_PF_VSYNC,
+	PA30_PF_CONTRAST,
+	LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
+	LCD_RESET | GPIO_GPIO | GPIO_OUT,
+	/* CSI */
+	PB10_PF_CSI_D0,
+	PB11_PF_CSI_D1,
+	PB12_PF_CSI_D2,
+	PB13_PF_CSI_D3,
+	PB14_PF_CSI_D4,
+	PB15_PF_CSI_MCLK,
+	PB16_PF_CSI_PIXCLK,
+	PB17_PF_CSI_D5,
+	PB18_PF_CSI_D6,
+	PB19_PF_CSI_D7,
+	PB20_PF_CSI_VSYNC,
+	PB21_PF_CSI_HSYNC,
+	CSI_PWRDWN | GPIO_GPIO | GPIO_OUT,
+	CSI_RESET | GPIO_GPIO | GPIO_OUT,
+	/* SSI4 */
+	PC16_PF_SSI4_FS,
+	PC17_PF_SSI4_RXD,
+	PC18_PF_SSI4_TXD,
+	PC19_PF_SSI4_CLK,
+};
+
+static struct gpio mx27_3ds_camera_gpios[] = {
+	{ CSI_PWRDWN, GPIOF_OUT_INIT_HIGH, "camera-power" },
+	{ CSI_RESET, GPIOF_OUT_INIT_HIGH, "camera-reset" },
+};
+
+static const struct imxuart_platform_data uart_pdata __initconst = {
+	.flags = IMXUART_HAVE_RTSCTS,
+};
+
+/*
+ * Matrix keyboard
+ */
+
+static const uint32_t mx27_3ds_keymap[] = {
+	KEY(0, 0, KEY_UP),
+	KEY(0, 1, KEY_DOWN),
+	KEY(1, 0, KEY_RIGHT),
+	KEY(1, 1, KEY_LEFT),
+	KEY(1, 2, KEY_ENTER),
+	KEY(2, 0, KEY_F6),
+	KEY(2, 1, KEY_F8),
+	KEY(2, 2, KEY_F9),
+	KEY(2, 3, KEY_F10),
+};
+
+static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
+	.keymap		= mx27_3ds_keymap,
+	.keymap_size	= ARRAY_SIZE(mx27_3ds_keymap),
+};
+
+static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
+				void *data)
+{
+	return request_irq(gpio_to_irq(SD1_CD), detect_irq,
+	IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
+}
+
+static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
+{
+	free_irq(gpio_to_irq(SD1_CD), data);
+}
+
+static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
+	.init = mx27_3ds_sdhc1_init,
+	.exit = mx27_3ds_sdhc1_exit,
+};
+
+static void mx27_3ds_sdhc1_enable_level_translator(void)
+{
+	/* Turn on TXB0108 OE pin */
+	gpio_request(SD1_EN_GPIO, "sd1_enable");
+	gpio_direction_output(SD1_EN_GPIO, 1);
+}
+
+
+static int otg_phy_init(void)
+{
+	gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
+	gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
+	mdelay(1);
+	gpio_set_value(OTG_PHY_RESET_GPIO, 1);
+	return 0;
+}
+
+static int mx27_3ds_otg_init(struct platform_device *pdev)
+{
+	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
+}
+
+static struct mxc_usbh_platform_data otg_pdata __initdata = {
+	.init	= mx27_3ds_otg_init,
+	.portsc	= MXC_EHCI_MODE_ULPI,
+};
+
+static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
+	.operating_mode = FSL_USB2_DR_DEVICE,
+	.phy_mode       = FSL_USB2_PHY_ULPI,
+};
+
+static bool otg_mode_host __initdata;
+
+static int __init mx27_3ds_otg_mode(char *options)
+{
+	if (!strcmp(options, "host"))
+		otg_mode_host = true;
+	else if (!strcmp(options, "device"))
+		otg_mode_host = false;
+	else
+		pr_info("otg_mode neither \"host\" nor \"device\". "
+			"Defaulting to device\n");
+	return 1;
+}
+__setup("otg_mode=", mx27_3ds_otg_mode);
+
+/* Regulators */
+static struct regulator_init_data gpo_init = {
+	.constraints = {
+		.boot_on = 1,
+		.always_on = 1,
+	}
+};
+
+static struct regulator_consumer_supply vmmc1_consumers[] = {
+	REGULATOR_SUPPLY("vcore", "spi0.0"),
+	REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
+};
+
+static struct regulator_init_data vmmc1_init = {
+	.constraints = {
+		.min_uV	= 2800000,
+		.max_uV = 2800000,
+		.apply_uV = 1,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+				  REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
+	.consumer_supplies = vmmc1_consumers,
+};
+
+static struct regulator_consumer_supply vgen_consumers[] = {
+	REGULATOR_SUPPLY("vdd", "spi0.0"),
+};
+
+static struct regulator_init_data vgen_init = {
+	.constraints = {
+		.min_uV	= 1800000,
+		.max_uV = 1800000,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
+	.consumer_supplies = vgen_consumers,
+};
+
+static struct regulator_consumer_supply vvib_consumers[] = {
+	REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
+};
+
+static struct regulator_init_data vvib_init = {
+	.constraints = {
+		.min_uV = 1300000,
+		.max_uV = 1300000,
+		.apply_uV = 1,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+				  REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
+	.consumer_supplies = vvib_consumers,
+};
+
+static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
+	{
+		.id = MC13783_REG_VMMC1,
+		.init_data = &vmmc1_init,
+	}, {
+		.id = MC13783_REG_VGEN,
+		.init_data = &vgen_init,
+	}, {
+		.id = MC13783_REG_GPO1, /* Turn on 1.8V */
+		.init_data = &gpo_init,
+	}, {
+		.id = MC13783_REG_GPO3, /* Turn on 3.3V */
+		.init_data = &gpo_init,
+	}, {
+		.id = MC13783_REG_VVIB,  /* Power OV2640 */
+		.init_data = &vvib_init,
+	},
+};
+
+/* MC13783 */
+static struct mc13xxx_codec_platform_data mx27_3ds_codec = {
+	.dac_ssi_port = MC13783_SSI1_PORT,
+	.adc_ssi_port = MC13783_SSI1_PORT,
+};
+
+static struct mc13xxx_platform_data mc13783_pdata = {
+	.regulators = {
+		.regulators = mx27_3ds_regulators,
+		.num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
+
+	},
+	.flags  = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC |
+						MC13XXX_USE_CODEC,
+	.codec = &mx27_3ds_codec,
+};
+
+static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
+	.flags = IMX_SSI_DMA | IMX_SSI_NET,
+};
+
+/* SPI */
+static int spi1_chipselect[] = {SPI1_SS0};
+
+static const struct spi_imx_master spi1_pdata __initconst = {
+	.chipselect	= spi1_chipselect,
+	.num_chipselect	= ARRAY_SIZE(spi1_chipselect),
+};
+
+static int spi2_chipselect[] = {SPI2_SS0};
+
+static const struct spi_imx_master spi2_pdata __initconst = {
+	.chipselect	= spi2_chipselect,
+	.num_chipselect	= ARRAY_SIZE(spi2_chipselect),
+};
+
+static int mx27_3ds_camera_power(struct device *dev, int on)
+{
+	/* enable or disable the camera */
+	pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
+	gpio_set_value(CSI_PWRDWN, on ? 0 : 1);
+
+	if (!on)
+		goto out;
+
+	/* If enabled, give a reset impulse */
+	gpio_set_value(CSI_RESET, 0);
+	msleep(20);
+	gpio_set_value(CSI_RESET, 1);
+	msleep(100);
+
+out:
+	return 0;
+}
+
+static struct i2c_board_info mx27_3ds_i2c_camera = {
+	I2C_BOARD_INFO("ov2640", 0x30),
+};
+
+static struct regulator_bulk_data mx27_3ds_camera_regs[] = {
+	{ .supply = "cmos_vcore" },
+	{ .supply = "cmos_2v8" },
+};
+
+static struct soc_camera_link iclink_ov2640 = {
+	.bus_id		= 0,
+	.board_info	= &mx27_3ds_i2c_camera,
+	.i2c_adapter_id	= 0,
+	.power		= mx27_3ds_camera_power,
+	.regulators	= mx27_3ds_camera_regs,
+	.num_regulators	= ARRAY_SIZE(mx27_3ds_camera_regs),
+};
+
+static struct platform_device mx27_3ds_ov2640 = {
+	.name	= "soc-camera-pdrv",
+	.id	= 0,
+	.dev	= {
+		.platform_data = &iclink_ov2640,
+	},
+};
+
+static struct imx_fb_videomode mx27_3ds_modes[] = {
+	{	/* 480x640 @ 60 Hz */
+		.mode = {
+			.name		= "Epson-VGA",
+			.refresh	= 60,
+			.xres		= 480,
+			.yres		= 640,
+			.pixclock	= 41701,
+			.left_margin	= 20,
+			.right_margin	= 41,
+			.upper_margin	= 10,
+			.lower_margin	= 5,
+			.hsync_len	= 20,
+			.vsync_len	= 10,
+			.sync		= FB_SYNC_OE_ACT_HIGH |
+						FB_SYNC_CLK_INVERT,
+			.vmode		= FB_VMODE_NONINTERLACED,
+			.flag		= 0,
+		},
+		.bpp		= 16,
+		.pcr		= 0xFAC08B82,
+	},
+};
+
+static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
+	.mode = mx27_3ds_modes,
+	.num_modes = ARRAY_SIZE(mx27_3ds_modes),
+	.pwmr		= 0x00A903FF,
+	.lscr1		= 0x00120300,
+	.dmacr		= 0x00020010,
+};
+
+/* LCD */
+static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
+	.reset_gpio		= LCD_RESET,
+	.data_enable_gpio	= LCD_ENABLE,
+};
+
+static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
+	{
+		.modalias	= "mc13783",
+		.max_speed_hz	= 1000000,
+		.bus_num	= 1,
+		.chip_select	= 0, /* SS0 */
+		.platform_data	= &mc13783_pdata,
+		/* irq number is run-time assigned */
+		.mode = SPI_CS_HIGH,
+	}, {
+		.modalias	= "l4f00242t03",
+		.max_speed_hz	= 5000000,
+		.bus_num	= 0,
+		.chip_select	= 0, /* SS0 */
+		.platform_data	= &mx27_3ds_lcd_pdata,
+	},
+};
+
+static struct platform_device *devices[] __initdata = {
+	&mx27_3ds_ov2640,
+};
+
+static const struct mx2_camera_platform_data mx27_3ds_cam_pdata __initconst = {
+	.clk = 26000000,
+};
+
+static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
+	.bitrate = 100000,
+};
+
+static void __init mx27pdk_init(void)
+{
+	int ret;
+	imx27_soc_init();
+
+	mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
+		"mx27pdk");
+	mx27_3ds_sdhc1_enable_level_translator();
+	imx27_add_imx_uart0(&uart_pdata);
+	imx27_add_fec(NULL);
+	imx27_add_imx_keypad(&mx27_3ds_keymap_data);
+	imx27_add_mxc_mmc(0, &sdhc1_pdata);
+	imx27_add_imx2_wdt();
+	otg_phy_init();
+
+	if (otg_mode_host) {
+		otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
+				ULPI_OTG_DRVVBUS_EXT);
+
+		if (otg_pdata.otg)
+			imx27_add_mxc_ehci_otg(&otg_pdata);
+	}
+
+	if (!otg_mode_host)
+		imx27_add_fsl_usb2_udc(&otg_device_pdata);
+
+	imx27_add_spi_imx1(&spi2_pdata);
+	imx27_add_spi_imx0(&spi1_pdata);
+	mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
+	spi_register_board_info(mx27_3ds_spi_devs,
+						ARRAY_SIZE(mx27_3ds_spi_devs));
+
+	if (mxc_expio_init(MX27_CS5_BASE_ADDR, IMX_GPIO_NR(3, 28)))
+		pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
+	imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+	imx27_add_imx_fb(&mx27_3ds_fb_data);
+
+	ret = gpio_request_array(mx27_3ds_camera_gpios,
+				 ARRAY_SIZE(mx27_3ds_camera_gpios));
+	if (ret) {
+		pr_err("Failed to request camera gpios");
+		iclink_ov2640.power = NULL;
+	}
+
+	imx27_add_mx2_camera(&mx27_3ds_cam_pdata);
+	imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
+
+	imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
+}
+
+static void __init mx27pdk_timer_init(void)
+{
+	mx27_clocks_init(26000000);
+}
+
+MACHINE_START(MX27_3DS, "Freescale MX27PDK")
+	/* maintainer: Freescale Semiconductor, Inc. */
+	.atag_offset = 0x100,
+	.map_io = mx27_map_io,
+	.init_early = imx27_init_early,
+	.init_irq = mx27_init_irq,
+	.init_time	= mx27pdk_timer_init,
+	.init_machine = mx27pdk_init,
+	.restart	= mxc_restart,
+MACHINE_END