diff options
Diffstat (limited to 'kernel/arch/arm/mach-imx/mach-mx27_3ds.c')
| -rw-r--r-- | kernel/arch/arm/mach-imx/mach-mx27_3ds.c | 551 |
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 |