| /* |
| * 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) |
| { |
| imx27_soc_init(); |
| |
| mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins), |
| "mx27pdk"); |
| imx27_add_imx_uart0(&uart_pdata); |
| imx27_add_fec(NULL); |
| imx27_add_imx_keypad(&mx27_3ds_keymap_data); |
| imx27_add_imx2_wdt(); |
| |
| imx27_add_spi_imx1(&spi2_pdata); |
| imx27_add_spi_imx0(&spi1_pdata); |
| |
| imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data); |
| platform_add_devices(devices, ARRAY_SIZE(devices)); |
| imx27_add_imx_fb(&mx27_3ds_fb_data); |
| |
| imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata); |
| } |
| |
| static void __init mx27pdk_late_init(void) |
| { |
| int ret; |
| |
| mx27_3ds_sdhc1_enable_level_translator(); |
| imx27_add_mxc_mmc(0, &sdhc1_pdata); |
| |
| 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); |
| |
| 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"); |
| |
| 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); |
| |
| 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, |
| .init_late = mx27pdk_late_init, |
| .restart = mxc_restart, |
| MACHINE_END |