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linux-sg2042/arch/arm/mach-mx3/mach-mx31_3ds.c

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/*
* Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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.
*/
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/spi/l4f00242t03.h>
#include <linux/regulator/machine.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <linux/memblock.h>
#include <media/soc_camera.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/memory.h>
#include <asm/mach/map.h>
#include <mach/common.h>
#include <mach/iomux-mx3.h>
#include <mach/3ds_debugboard.h>
#include <mach/ulpi.h>
#include <mach/mmc.h>
#include <mach/ipu.h>
#include <mach/mx3fb.h>
#include <mach/mx3_camera.h>
#include "devices-imx31.h"
#include "devices.h"
/* CPLD IRQ line for external uart, external ethernet etc */
#define EXPIO_PARENT_INT IOMUX_TO_IRQ(MX31_PIN_GPIO1_1)
static int mx31_3ds_pins[] = {
/* UART1 */
MX31_PIN_CTS1__CTS1,
MX31_PIN_RTS1__RTS1,
MX31_PIN_TXD1__TXD1,
MX31_PIN_RXD1__RXD1,
IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO),
/*SPI0*/
MX31_PIN_CSPI1_SCLK__SCLK,
MX31_PIN_CSPI1_MOSI__MOSI,
MX31_PIN_CSPI1_MISO__MISO,
MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI1_SS2__SS2, /* CS for LCD */
/* SPI 1 */
MX31_PIN_CSPI2_SCLK__SCLK,
MX31_PIN_CSPI2_MOSI__MOSI,
MX31_PIN_CSPI2_MISO__MISO,
MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI2_SS0__SS0,
MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */
/* MC13783 IRQ */
IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO),
/* USB OTG reset */
IOMUX_MODE(MX31_PIN_USB_PWR, IOMUX_CONFIG_GPIO),
/* USB OTG */
MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
MX31_PIN_USBOTG_CLK__USBOTG_CLK,
MX31_PIN_USBOTG_DIR__USBOTG_DIR,
MX31_PIN_USBOTG_NXT__USBOTG_NXT,
MX31_PIN_USBOTG_STP__USBOTG_STP,
/*Keyboard*/
MX31_PIN_KEY_ROW0_KEY_ROW0,
MX31_PIN_KEY_ROW1_KEY_ROW1,
MX31_PIN_KEY_ROW2_KEY_ROW2,
MX31_PIN_KEY_COL0_KEY_COL0,
MX31_PIN_KEY_COL1_KEY_COL1,
MX31_PIN_KEY_COL2_KEY_COL2,
MX31_PIN_KEY_COL3_KEY_COL3,
/* USB Host 2 */
IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC),
IOMUX_MODE(MX31_PIN_PC_VS2, IOMUX_CONFIG_ALT1),
IOMUX_MODE(MX31_PIN_PC_BVD1, IOMUX_CONFIG_ALT1),
IOMUX_MODE(MX31_PIN_PC_BVD2, IOMUX_CONFIG_ALT1),
IOMUX_MODE(MX31_PIN_PC_RST, IOMUX_CONFIG_ALT1),
IOMUX_MODE(MX31_PIN_IOIS16, IOMUX_CONFIG_ALT1),
IOMUX_MODE(MX31_PIN_PC_RW_B, IOMUX_CONFIG_ALT1),
/* USB Host2 reset */
IOMUX_MODE(MX31_PIN_USB_BYP, IOMUX_CONFIG_GPIO),
/* I2C1 */
MX31_PIN_I2C_CLK__I2C1_SCL,
MX31_PIN_I2C_DAT__I2C1_SDA,
/* SDHC1 */
MX31_PIN_SD1_DATA3__SD1_DATA3,
MX31_PIN_SD1_DATA2__SD1_DATA2,
MX31_PIN_SD1_DATA1__SD1_DATA1,
MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_CLK__SD1_CLK,
MX31_PIN_SD1_CMD__SD1_CMD,
MX31_PIN_GPIO3_1__GPIO3_1, /* Card detect */
MX31_PIN_GPIO3_0__GPIO3_0, /* OE */
/* Framebuffer */
MX31_PIN_LD0__LD0,
MX31_PIN_LD1__LD1,
MX31_PIN_LD2__LD2,
MX31_PIN_LD3__LD3,
MX31_PIN_LD4__LD4,
MX31_PIN_LD5__LD5,
MX31_PIN_LD6__LD6,
MX31_PIN_LD7__LD7,
MX31_PIN_LD8__LD8,
MX31_PIN_LD9__LD9,
MX31_PIN_LD10__LD10,
MX31_PIN_LD11__LD11,
MX31_PIN_LD12__LD12,
MX31_PIN_LD13__LD13,
MX31_PIN_LD14__LD14,
MX31_PIN_LD15__LD15,
MX31_PIN_LD16__LD16,
MX31_PIN_LD17__LD17,
MX31_PIN_VSYNC3__VSYNC3,
MX31_PIN_HSYNC__HSYNC,
MX31_PIN_FPSHIFT__FPSHIFT,
MX31_PIN_CONTRAST__CONTRAST,
/* CSI */
MX31_PIN_CSI_D6__CSI_D6,
MX31_PIN_CSI_D7__CSI_D7,
MX31_PIN_CSI_D8__CSI_D8,
MX31_PIN_CSI_D9__CSI_D9,
MX31_PIN_CSI_D10__CSI_D10,
MX31_PIN_CSI_D11__CSI_D11,
MX31_PIN_CSI_D12__CSI_D12,
MX31_PIN_CSI_D13__CSI_D13,
MX31_PIN_CSI_D14__CSI_D14,
MX31_PIN_CSI_D15__CSI_D15,
MX31_PIN_CSI_HSYNC__CSI_HSYNC,
MX31_PIN_CSI_MCLK__CSI_MCLK,
MX31_PIN_CSI_PIXCLK__CSI_PIXCLK,
MX31_PIN_CSI_VSYNC__CSI_VSYNC,
MX31_PIN_CSI_D5__GPIO3_5, /* CMOS PWDN */
IOMUX_MODE(MX31_PIN_RI_DTE1, IOMUX_CONFIG_GPIO), /* CMOS reset */
};
/*
* Camera support
*/
static phys_addr_t mx3_camera_base __initdata;
#define MX31_3DS_CAMERA_BUF_SIZE SZ_8M
#define MX31_3DS_GPIO_CAMERA_PW IOMUX_TO_GPIO(MX31_PIN_CSI_D5)
#define MX31_3DS_GPIO_CAMERA_RST IOMUX_TO_GPIO(MX31_PIN_RI_DTE1)
static struct gpio mx31_3ds_camera_gpios[] = {
{ MX31_3DS_GPIO_CAMERA_PW, GPIOF_OUT_INIT_HIGH, "camera-power" },
{ MX31_3DS_GPIO_CAMERA_RST, GPIOF_OUT_INIT_HIGH, "camera-reset" },
};
static int __init mx31_3ds_camera_alloc_dma(void)
{
int dma;
if (!mx3_camera_base)
return -ENOMEM;
dma = dma_declare_coherent_memory(&mx3_camera.dev,
mx3_camera_base, mx3_camera_base,
MX31_3DS_CAMERA_BUF_SIZE,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
if (!(dma & DMA_MEMORY_MAP))
return -ENOMEM;
return 0;
}
static int mx31_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(MX31_3DS_GPIO_CAMERA_PW, on ? 0 : 1);
if (!on)
goto out;
/* If enabled, give a reset impulse */
gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 0);
msleep(20);
gpio_set_value(MX31_3DS_GPIO_CAMERA_RST, 1);
msleep(100);
out:
return 0;
}
static struct i2c_board_info mx31_3ds_i2c_camera = {
I2C_BOARD_INFO("ov2640", 0x30),
};
static struct regulator_bulk_data mx31_3ds_camera_regs[] = {
{ .supply = "cmos_vcore" },
{ .supply = "cmos_2v8" },
};
static struct soc_camera_link iclink_ov2640 = {
.bus_id = 0,
.board_info = &mx31_3ds_i2c_camera,
.i2c_adapter_id = 0,
.power = mx31_3ds_camera_power,
.regulators = mx31_3ds_camera_regs,
.num_regulators = ARRAY_SIZE(mx31_3ds_camera_regs),
};
static struct platform_device mx31_3ds_ov2640 = {
.name = "soc-camera-pdrv",
.id = 0,
.dev = {
.platform_data = &iclink_ov2640,
},
};
struct mx3_camera_pdata mx31_3ds_camera_pdata = {
.dma_dev = &mx3_ipu.dev,
.flags = MX3_CAMERA_DATAWIDTH_10,
.mclk_10khz = 2600,
};
/*
* FB support
*/
static const struct fb_videomode fb_modedb[] = {
{ /* 480x640 @ 60 Hz */
.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,
},
};
static struct ipu_platform_data mx3_ipu_data = {
.irq_base = MXC_IPU_IRQ_START,
};
static struct mx3fb_platform_data mx3fb_pdata = {
.dma_dev = &mx3_ipu.dev,
.name = "Epson-VGA",
.mode = fb_modedb,
.num_modes = ARRAY_SIZE(fb_modedb),
};
/* LCD */
static struct l4f00242t03_pdata mx31_3ds_l4f00242t03_pdata = {
.reset_gpio = IOMUX_TO_GPIO(MX31_PIN_LCS1),
.data_enable_gpio = IOMUX_TO_GPIO(MX31_PIN_SER_RS),
.core_supply = "lcd_2v8",
.io_supply = "vdd_lcdio",
};
/*
* Support for SD card slot in personality board
*/
#define MX31_3DS_GPIO_SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
#define MX31_3DS_GPIO_SDHC1_BE IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
static struct gpio mx31_3ds_sdhc1_gpios[] = {
{ MX31_3DS_GPIO_SDHC1_CD, GPIOF_IN, "sdhc1-card-detect" },
{ MX31_3DS_GPIO_SDHC1_BE, GPIOF_OUT_INIT_LOW, "sdhc1-bus-en" },
};
static int mx31_3ds_sdhc1_init(struct device *dev,
irq_handler_t detect_irq,
void *data)
{
int ret;
ret = gpio_request_array(mx31_3ds_sdhc1_gpios,
ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
if (ret) {
pr_warning("Unable to request the SD/MMC GPIOs.\n");
return ret;
}
ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
detect_irq, IRQF_DISABLED |
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
"sdhc1-detect", data);
if (ret) {
pr_warning("Unable to request the SD/MMC card-detect IRQ.\n");
goto gpio_free;
}
return 0;
gpio_free:
gpio_free_array(mx31_3ds_sdhc1_gpios,
ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
return ret;
}
static void mx31_3ds_sdhc1_exit(struct device *dev, void *data)
{
free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO3_1), data);
gpio_free_array(mx31_3ds_sdhc1_gpios,
ARRAY_SIZE(mx31_3ds_sdhc1_gpios));
}
static void mx31_3ds_sdhc1_setpower(struct device *dev, unsigned int vdd)
{
/*
* While the voltage stuff is done by the driver, activate the
* Buffer Enable Pin only if there is a card in slot to fix the card
* voltage issue caused by bi-directional chip TXB0108 on 3Stack.
* Done here because at this stage we have for sure a debounced value
* of the presence of the card, showed by the value of vdd.
* 7 == ilog2(MMC_VDD_165_195)
*/
if (vdd > 7)
gpio_set_value(MX31_3DS_GPIO_SDHC1_BE, 1);
else
gpio_set_value(MX31_3DS_GPIO_SDHC1_BE, 0);
}
static struct imxmmc_platform_data sdhc1_pdata = {
.init = mx31_3ds_sdhc1_init,
.exit = mx31_3ds_sdhc1_exit,
.setpower = mx31_3ds_sdhc1_setpower,
};
/*
* Matrix keyboard
*/
static const uint32_t mx31_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 mx31_3ds_keymap_data __initconst = {
.keymap = mx31_3ds_keymap,
.keymap_size = ARRAY_SIZE(mx31_3ds_keymap),
};
/* Regulators */
static struct regulator_init_data pwgtx_init = {
.constraints = {
.boot_on = 1,
.always_on = 1,
},
};
static struct regulator_init_data gpo_init = {
.constraints = {
.boot_on = 1,
.always_on = 1,
}
};
static struct regulator_consumer_supply vmmc2_consumers[] = {
REGULATOR_SUPPLY("vmmc", "mxc-mmc.0"),
};
static struct regulator_init_data vmmc2_init = {
.constraints = {
.min_uV = 3000000,
.max_uV = 3000000,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(vmmc2_consumers),
.consumer_supplies = vmmc2_consumers,
};
static struct regulator_consumer_supply vmmc1_consumers[] = {
REGULATOR_SUPPLY("lcd_2v8", NULL),
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_lcdio", NULL),
};
static struct regulator_init_data vgen_init = {
.constraints = {
.min_uV = 1800000,
.max_uV = 1800000,
.apply_uV = 1,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_STATUS,
},
.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 mx31_3ds_regulators[] = {
{
.id = MC13783_REG_PWGT1SPI, /* Power Gate for ARM core. */
.init_data = &pwgtx_init,
}, {
.id = MC13783_REG_PWGT2SPI, /* Power Gate for L2 Cache. */
.init_data = &pwgtx_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_VMMC2, /* Power MMC/SD, WiFi/Bluetooth. */
.init_data = &vmmc2_init,
}, {
.id = MC13783_REG_VMMC1, /* Power LCD, CMOS, FM, GPS, Accel. */
.init_data = &vmmc1_init,
}, {
.id = MC13783_REG_VGEN, /* Power LCD */
.init_data = &vgen_init,
}, {
.id = MC13783_REG_VVIB, /* Power CMOS */
.init_data = &vvib_init,
},
};
/* MC13783 */
static struct mc13xxx_platform_data mc13783_pdata __initdata = {
.regulators = mx31_3ds_regulators,
.num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
.flags = MC13XXX_USE_REGULATOR | MC13XXX_USE_TOUCHSCREEN
};
/* SPI */
static int spi0_internal_chipselect[] = {
MXC_SPI_CS(2),
};
static const struct spi_imx_master spi0_pdata __initconst = {
.chipselect = spi0_internal_chipselect,
.num_chipselect = ARRAY_SIZE(spi0_internal_chipselect),
};
static int spi1_internal_chipselect[] = {
MXC_SPI_CS(0),
MXC_SPI_CS(2),
};
static const struct spi_imx_master spi1_pdata __initconst = {
.chipselect = spi1_internal_chipselect,
.num_chipselect = ARRAY_SIZE(spi1_internal_chipselect),
};
static struct spi_board_info mx31_3ds_spi_devs[] __initdata = {
{
.modalias = "mc13783",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 1, /* SS2 */
.platform_data = &mc13783_pdata,
.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
.mode = SPI_CS_HIGH,
}, {
.modalias = "l4f00242t03",
.max_speed_hz = 5000000,
.bus_num = 0,
.chip_select = 0, /* SS2 */
.platform_data = &mx31_3ds_l4f00242t03_pdata,
},
};
/*
* NAND Flash
*/
static const struct mxc_nand_platform_data
mx31_3ds_nand_board_info __initconst = {
.width = 1,
.hw_ecc = 1,
#ifdef MACH_MX31_3DS_MXC_NAND_USE_BBT
.flash_bbt = 1,
#endif
};
/*
* USB OTG
*/
#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
#define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR)
#define USBH2_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_BYP)
static int mx31_3ds_usbotg_init(void)
{
int err;
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
err = gpio_request(USBOTG_RST_B, "otgusb-reset");
if (err) {
pr_err("Failed to request the USB OTG reset gpio\n");
return err;
}
err = gpio_direction_output(USBOTG_RST_B, 0);
if (err) {
pr_err("Failed to drive the USB OTG reset gpio\n");
goto usbotg_free_reset;
}
mdelay(1);
gpio_set_value(USBOTG_RST_B, 1);
return 0;
usbotg_free_reset:
gpio_free(USBOTG_RST_B);
return err;
}
static int mx31_3ds_otg_init(struct platform_device *pdev)
{
return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
}
static int mx31_3ds_host2_init(struct platform_device *pdev)
{
int err;
mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_PC_VS2, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_PC_BVD1, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_PC_BVD2, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_PC_RST, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_IOIS16, USB_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_PC_RW_B, USB_PAD_CFG);
err = gpio_request(USBH2_RST_B, "usbh2-reset");
if (err) {
pr_err("Failed to request the USB Host 2 reset gpio\n");
return err;
}
err = gpio_direction_output(USBH2_RST_B, 0);
if (err) {
pr_err("Failed to drive the USB Host 2 reset gpio\n");
goto usbotg_free_reset;
}
mdelay(1);
gpio_set_value(USBH2_RST_B, 1);
mdelay(10);
return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
usbotg_free_reset:
gpio_free(USBH2_RST_B);
return err;
}
static struct mxc_usbh_platform_data otg_pdata __initdata = {
.init = mx31_3ds_otg_init,
.portsc = MXC_EHCI_MODE_ULPI,
};
static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
.init = mx31_3ds_host2_init,
.portsc = MXC_EHCI_MODE_ULPI,
};
static const struct fsl_usb2_platform_data usbotg_pdata __initconst = {
.operating_mode = FSL_USB2_DR_DEVICE,
.phy_mode = FSL_USB2_PHY_ULPI,
};
static int otg_mode_host;
static int __init mx31_3ds_otg_mode(char *options)
{
if (!strcmp(options, "host"))
otg_mode_host = 1;
else if (!strcmp(options, "device"))
otg_mode_host = 0;
else
pr_info("otg_mode neither \"host\" nor \"device\". "
"Defaulting to device\n");
return 0;
}
__setup("otg_mode=", mx31_3ds_otg_mode);
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
static const struct imxi2c_platform_data mx31_3ds_i2c0_data __initconst = {
.bitrate = 100000,
};
static struct platform_device *devices[] __initdata = {
&mx31_3ds_ov2640,
};
static void __init mx31_3ds_init(void)
{
int ret;
mxc_iomux_setup_multiple_pins(mx31_3ds_pins, ARRAY_SIZE(mx31_3ds_pins),
"mx31_3ds");
imx31_add_imx_uart0(&uart_pdata);
imx31_add_mxc_nand(&mx31_3ds_nand_board_info);
imx31_add_spi_imx1(&spi1_pdata);
spi_register_board_info(mx31_3ds_spi_devs,
ARRAY_SIZE(mx31_3ds_spi_devs));
platform_add_devices(devices, ARRAY_SIZE(devices));
imx31_add_imx_keypad(&mx31_3ds_keymap_data);
mx31_3ds_usbotg_init();
if (otg_mode_host) {
otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT);
if (otg_pdata.otg)
imx31_add_mxc_ehci_otg(&otg_pdata);
}
usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
ULPI_OTG_DRVVBUS_EXT);
if (usbh2_pdata.otg)
imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
if (!otg_mode_host)
imx31_add_fsl_usb2_udc(&usbotg_pdata);
if (mxc_expio_init(MX31_CS5_BASE_ADDR, EXPIO_PARENT_INT))
printk(KERN_WARNING "Init of the debug board failed, all "
"devices on the debug board are unusable.\n");
imx31_add_imx2_wdt(NULL);
imx31_add_imx_i2c0(&mx31_3ds_i2c0_data);
imx31_add_mxc_mmc(0, &sdhc1_pdata);
imx31_add_spi_imx0(&spi0_pdata);
mxc_register_device(&mx3_ipu, &mx3_ipu_data);
mxc_register_device(&mx3_fb, &mx3fb_pdata);
/* CSI */
/* Camera power: default - off */
ret = gpio_request_array(mx31_3ds_camera_gpios,
ARRAY_SIZE(mx31_3ds_camera_gpios));
if (ret) {
pr_err("Failed to request camera gpios");
iclink_ov2640.power = NULL;
}
if (!mx31_3ds_camera_alloc_dma())
mxc_register_device(&mx3_camera, &mx31_3ds_camera_pdata);
else
pr_err("Failed to allocate dma memory for camera");
}
static void __init mx31_3ds_timer_init(void)
{
mx31_clocks_init(26000000);
}
static struct sys_timer mx31_3ds_timer = {
.init = mx31_3ds_timer_init,
};
static void __init mx31_3ds_reserve(void)
{
/* reserve MX31_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */
mx3_camera_base = memblock_alloc(MX31_3DS_CAMERA_BUF_SIZE,
MX31_3DS_CAMERA_BUF_SIZE);
memblock_free(mx3_camera_base, MX31_3DS_CAMERA_BUF_SIZE);
memblock_remove(mx3_camera_base, MX31_3DS_CAMERA_BUF_SIZE);
}
MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
/* Maintainer: Freescale Semiconductor, Inc. */
.boot_params = MX3x_PHYS_OFFSET + 0x100,
.map_io = mx31_map_io,
.init_early = imx31_init_early,
.init_irq = mx31_init_irq,
.timer = &mx31_3ds_timer,
.init_machine = mx31_3ds_init,
.reserve = mx31_3ds_reserve,
MACHINE_END
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