diff options
Diffstat (limited to 'kernel/arch/arm/mach-imx/mach-mx31_3ds.c')
| -rw-r--r-- | kernel/arch/arm/mach-imx/mach-mx31_3ds.c | 783 |
1 files changed, 783 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/mach-mx31_3ds.c b/kernel/arch/arm/mach-imx/mach-mx31_3ds.c new file mode 100644 index 000000000..65a0dc06a --- /dev/null +++ b/kernel/arch/arm/mach-imx/mach-mx31_3ds.c @@ -0,0 +1,783 @@ +/* + * 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/dma-mapping.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 <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <asm/memory.h> +#include <asm/mach/map.h> +#include <asm/memblock.h> + +#include "3ds_debugboard.h" +#include "common.h" +#include "devices-imx31.h" +#include "ehci.h" +#include "hardware.h" +#include "iomux-mx3.h" +#include "ulpi.h" + +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*/ + IOMUX_MODE(MX31_PIN_DSR_DCE1, IOMUX_CONFIG_ALT1), + IOMUX_MODE(MX31_PIN_RI_DCE1, IOMUX_CONFIG_ALT1), + /* 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 */ + /* SSI */ + MX31_PIN_STXD4__STXD4, + MX31_PIN_SRXD4__SRXD4, + MX31_PIN_SCK4__SCK4, + MX31_PIN_SFS4__SFS4, +}; + +/* + * 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 const struct mx3_camera_pdata mx31_3ds_camera_pdata __initconst = { + .flags = MX3_CAMERA_DATAWIDTH_10, + .mclk_10khz = 2600, +}; + +static int __init mx31_3ds_init_camera(void) +{ + int dma, ret = -ENOMEM; + struct platform_device *pdev = + imx31_alloc_mx3_camera(&mx31_3ds_camera_pdata); + + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + if (!mx3_camera_base) + goto err; + + dma = dma_declare_coherent_memory(&pdev->dev, + mx3_camera_base, mx3_camera_base, + MX31_3DS_CAMERA_BUF_SIZE, + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); + + if (!(dma & DMA_MEMORY_MAP)) + goto err; + + ret = platform_device_add(pdev); + if (ret) +err: + platform_device_put(pdev); + + return ret; +} + +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, + }, +}; + +/* + * 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 mx3fb_platform_data mx3fb_pdata __initdata = { + .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), +}; + +/* + * 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_warn("Unable to request the SD/MMC GPIOs.\n"); + return ret; + } + + ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)), + detect_irq, + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, + "sdhc1-detect", data); + if (ret) { + pr_warn("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(gpio_to_irq(IOMUX_TO_GPIO(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", "imx31-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("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, + .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_codec_platform_data mx31_3ds_codec = { + .dac_ssi_port = MC13783_SSI1_PORT, + .adc_ssi_port = MC13783_SSI1_PORT, +}; + +static struct mc13xxx_platform_data mc13783_pdata = { + .regulators = { + .regulators = mx31_3ds_regulators, + .num_regulators = ARRAY_SIZE(mx31_3ds_regulators), + }, + .codec = &mx31_3ds_codec, + .flags = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC | MC13XXX_USE_CODEC, + +}; + +static struct imx_ssi_platform_data mx31_3ds_ssi_pdata = { + .flags = IMX_SSI_DMA | IMX_SSI_NET, +}; + +/* 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 number is run-time assigned */ + .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 CONFIG_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 bool otg_mode_host __initdata; + +static int __init mx31_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=", 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; + + imx31_soc_init(); + + /* Configure SPI1 IOMUX */ + mxc_iomux_set_gpr(MUX_PGP_CSPI_BB, true); + + 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); + mx31_3ds_spi_devs[0].irq = gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3)); + 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, IOMUX_TO_GPIO(MX31_PIN_GPIO1_1))) + printk(KERN_WARNING "Init of the debug board failed, all " + "devices on the debug board are unusable.\n"); + imx31_add_imx2_wdt(); + imx31_add_imx_i2c0(&mx31_3ds_i2c0_data); + imx31_add_mxc_mmc(0, &sdhc1_pdata); + + imx31_add_spi_imx0(&spi0_pdata); + imx31_add_ipu_core(); + imx31_add_mx3_sdc_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; + } + + mx31_3ds_init_camera(); + + imx31_add_imx_ssi(0, &mx31_3ds_ssi_pdata); + + imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0); +} + +static void __init mx31_3ds_timer_init(void) +{ + mx31_clocks_init(26000000); +} + +static void __init mx31_3ds_reserve(void) +{ + /* reserve MX31_3DS_CAMERA_BUF_SIZE bytes for mx3-camera */ + mx3_camera_base = arm_memblock_steal(MX31_3DS_CAMERA_BUF_SIZE, + MX31_3DS_CAMERA_BUF_SIZE); +} + +MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)") + /* Maintainer: Freescale Semiconductor, Inc. */ + .atag_offset = 0x100, + .map_io = mx31_map_io, + .init_early = imx31_init_early, + .init_irq = mx31_init_irq, + .init_time = mx31_3ds_timer_init, + .init_machine = mx31_3ds_init, + .reserve = mx31_3ds_reserve, + .restart = mxc_restart, +MACHINE_END |