diff options
Diffstat (limited to 'arch/arm/mach-imx/mach-mx31moboard.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-mx31moboard.c | 583 |
1 files changed, 583 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c new file mode 100644 index 000000000000..eaa51e49ca95 --- /dev/null +++ b/arch/arm/mach-imx/mach-mx31moboard.c @@ -0,0 +1,583 @@ +/* + * Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group + * + * 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/gfp.h> +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/leds.h> +#include <linux/memory.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/partitions.h> +#include <linux/platform_device.h> +#include <linux/regulator/machine.h> +#include <linux/mfd/mc13783.h> +#include <linux/spi/spi.h> +#include <linux/types.h> +#include <linux/memblock.h> + +#include <linux/usb/otg.h> +#include <linux/usb/ulpi.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <asm/mach/map.h> +#include <mach/board-mx31moboard.h> +#include <mach/common.h> +#include <mach/hardware.h> +#include <mach/iomux-mx3.h> +#include <mach/ulpi.h> + +#include "devices-imx31.h" + +static unsigned int moboard_pins[] = { + /* UART0 */ + MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1, + MX31_PIN_CTS1__GPIO2_7, + /* UART4 */ + MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5, + MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5, + /* I2C0 */ + MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL, + /* I2C1 */ + MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL, + /* 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_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27, + /* USB reset */ + MX31_PIN_GPIO1_0__GPIO1_0, + /* 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, + MX31_PIN_USB_OC__GPIO1_30, + /* USB H2 */ + MX31_PIN_USBH2_DATA0__USBH2_DATA0, + MX31_PIN_USBH2_DATA1__USBH2_DATA1, + MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3, + MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5, + MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7, + MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR, + MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP, + MX31_PIN_SCK6__GPIO1_25, + /* LEDs */ + MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1, + MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3, + /* SPI1 */ + MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO, + MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY, + MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2, + /* Atlas IRQ */ + MX31_PIN_GPIO1_3__GPIO1_3, + /* SPI2 */ + MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO, + MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY, + MX31_PIN_CSPI2_SS1__CSPI3_SS1, +}; + +static struct physmap_flash_data mx31moboard_flash_data = { + .width = 2, +}; + +static struct resource mx31moboard_flash_resource = { + .start = 0xa0000000, + .end = 0xa1ffffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device mx31moboard_flash = { + .name = "physmap-flash", + .id = 0, + .dev = { + .platform_data = &mx31moboard_flash_data, + }, + .resource = &mx31moboard_flash_resource, + .num_resources = 1, +}; + +static int moboard_uart0_init(struct platform_device *pdev) +{ + int ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack"); + if (ret) + return ret; + + ret = gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0); + if (ret) + gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1)); + + return ret; +} + +static void moboard_uart0_exit(struct platform_device *pdev) +{ + gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1)); +} + +static const struct imxuart_platform_data uart0_pdata __initconst = { + .init = moboard_uart0_init, + .exit = moboard_uart0_exit, +}; + +static const struct imxuart_platform_data uart4_pdata __initconst = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +static const struct imxi2c_platform_data moboard_i2c0_data __initconst = { + .bitrate = 400000, +}; + +static const struct imxi2c_platform_data moboard_i2c1_data __initconst = { + .bitrate = 100000, +}; + +static int moboard_spi1_cs[] = { + MXC_SPI_CS(0), + MXC_SPI_CS(2), +}; + +static const struct spi_imx_master moboard_spi1_pdata __initconst = { + .chipselect = moboard_spi1_cs, + .num_chipselect = ARRAY_SIZE(moboard_spi1_cs), +}; + +static struct regulator_consumer_supply sdhc_consumers[] = { + { + .dev_name = "mxc-mmc.0", + .supply = "sdhc0_vcc", + }, + { + .dev_name = "mxc-mmc.1", + .supply = "sdhc1_vcc", + }, +}; + +static struct regulator_init_data sdhc_vreg_data = { + .constraints = { + .min_uV = 2700000, + .max_uV = 3000000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_FAST, + .always_on = 0, + .boot_on = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers), + .consumer_supplies = sdhc_consumers, +}; + +static struct regulator_consumer_supply cam_consumers[] = { + { + .dev_name = "mx3_camera.0", + .supply = "cam_vcc", + }, +}; + +static struct regulator_init_data cam_vreg_data = { + .constraints = { + .min_uV = 2700000, + .max_uV = 3000000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS, + .valid_modes_mask = REGULATOR_MODE_NORMAL | + REGULATOR_MODE_FAST, + .always_on = 0, + .boot_on = 1, + }, + .num_consumer_supplies = ARRAY_SIZE(cam_consumers), + .consumer_supplies = cam_consumers, +}; + +static struct mc13xxx_regulator_init_data moboard_regulators[] = { + { + .id = MC13783_REG_VMMC1, + .init_data = &sdhc_vreg_data, + }, + { + .id = MC13783_REG_VCAM, + .init_data = &cam_vreg_data, + }, +}; + +static struct mc13783_led_platform_data moboard_led[] = { + { + .id = MC13783_LED_R1, + .name = "coreboard-led-4:red", + .max_current = 2, + }, + { + .id = MC13783_LED_G1, + .name = "coreboard-led-4:green", + .max_current = 2, + }, + { + .id = MC13783_LED_B1, + .name = "coreboard-led-4:blue", + .max_current = 2, + }, + { + .id = MC13783_LED_R2, + .name = "coreboard-led-5:red", + .max_current = 3, + }, + { + .id = MC13783_LED_G2, + .name = "coreboard-led-5:green", + .max_current = 3, + }, + { + .id = MC13783_LED_B2, + .name = "coreboard-led-5:blue", + .max_current = 3, + }, +}; + +static struct mc13783_leds_platform_data moboard_leds = { + .num_leds = ARRAY_SIZE(moboard_led), + .led = moboard_led, + .flags = MC13783_LED_SLEWLIMTC, + .abmode = MC13783_LED_AB_DISABLED, + .tc1_period = MC13783_LED_PERIOD_10MS, + .tc2_period = MC13783_LED_PERIOD_10MS, +}; + +static struct mc13xxx_platform_data moboard_pmic = { + .regulators = { + .regulators = moboard_regulators, + .num_regulators = ARRAY_SIZE(moboard_regulators), + }, + .leds = &moboard_leds, + .flags = MC13XXX_USE_REGULATOR | MC13XXX_USE_RTC | + MC13XXX_USE_ADC | MC13XXX_USE_LED, +}; + +static struct spi_board_info moboard_spi_board_info[] __initdata = { + { + .modalias = "mc13783", + .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3), + .max_speed_hz = 300000, + .bus_num = 1, + .chip_select = 0, + .platform_data = &moboard_pmic, + .mode = SPI_CS_HIGH, + }, +}; + +static int moboard_spi2_cs[] = { + MXC_SPI_CS(1), +}; + +static const struct spi_imx_master moboard_spi2_pdata __initconst = { + .chipselect = moboard_spi2_cs, + .num_chipselect = ARRAY_SIZE(moboard_spi2_cs), +}; + +#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0) +#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1) + +static int moboard_sdhc1_get_ro(struct device *dev) +{ + return !gpio_get_value(SDHC1_WP); +} + +static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq, + void *data) +{ + int ret; + + ret = gpio_request(SDHC1_CD, "sdhc-detect"); + if (ret) + return ret; + + gpio_direction_input(SDHC1_CD); + + ret = gpio_request(SDHC1_WP, "sdhc-wp"); + if (ret) + goto err_gpio_free; + gpio_direction_input(SDHC1_WP); + + ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + "sdhc1-card-detect", data); + if (ret) + goto err_gpio_free_2; + + return 0; + +err_gpio_free_2: + gpio_free(SDHC1_WP); +err_gpio_free: + gpio_free(SDHC1_CD); + + return ret; +} + +static void moboard_sdhc1_exit(struct device *dev, void *data) +{ + free_irq(gpio_to_irq(SDHC1_CD), data); + gpio_free(SDHC1_WP); + gpio_free(SDHC1_CD); +} + +static const struct imxmmc_platform_data sdhc1_pdata __initconst = { + .get_ro = moboard_sdhc1_get_ro, + .init = moboard_sdhc1_init, + .exit = moboard_sdhc1_exit, +}; + +/* + * this pin is dedicated for all mx31moboard systems, so we do it here + */ +#define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0) +#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \ + PAD_CTL_ODE_CMOS) + +#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC) +#define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6) + +static void usb_xcvr_reset(void) +{ + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU); + mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU); + mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU); + + mxc_iomux_set_gpr(MUX_PGP_UH2, true); + mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU); + mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU); + mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU); + mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU); + mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD); + mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD); + + gpio_request(OTG_EN_B, "usb-udc-en"); + gpio_direction_output(OTG_EN_B, 0); + gpio_request(USBH2_EN_B, "usbh2-en"); + gpio_direction_output(USBH2_EN_B, 0); + + gpio_request(USB_RESET_B, "usb-reset"); + gpio_direction_output(USB_RESET_B, 0); + mdelay(1); + gpio_set_value(USB_RESET_B, 1); + mdelay(1); +} + +static int moboard_usbh2_init_hw(struct platform_device *pdev) +{ + return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED); +} + +static struct mxc_usbh_platform_data usbh2_pdata __initdata = { + .init = moboard_usbh2_init_hw, + .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, +}; + +static int __init moboard_usbh2_init(void) +{ + struct platform_device *pdev; + + usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS | + ULPI_OTG_DRVVBUS_EXT); + if (!usbh2_pdata.otg) + return -ENODEV; + + pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + return 0; +} + +static struct gpio_led mx31moboard_leds[] = { + { + .name = "coreboard-led-0:red:running", + .default_trigger = "heartbeat", + .gpio = IOMUX_TO_GPIO(MX31_PIN_SVEN0), + }, { + .name = "coreboard-led-1:red", + .gpio = IOMUX_TO_GPIO(MX31_PIN_STX0), + }, { + .name = "coreboard-led-2:red", + .gpio = IOMUX_TO_GPIO(MX31_PIN_SRX0), + }, { + .name = "coreboard-led-3:red", + .gpio = IOMUX_TO_GPIO(MX31_PIN_SIMPD0), + }, +}; + +static struct gpio_led_platform_data mx31moboard_led_pdata = { + .num_leds = ARRAY_SIZE(mx31moboard_leds), + .leds = mx31moboard_leds, +}; + +static struct platform_device mx31moboard_leds_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &mx31moboard_led_pdata, + }, +}; + +static const struct ipu_platform_data mx3_ipu_data __initconst = { + .irq_base = MXC_IPU_IRQ_START, +}; + +static struct platform_device *devices[] __initdata = { + &mx31moboard_flash, + &mx31moboard_leds_device, +}; + +static struct mx3_camera_pdata camera_pdata __initdata = { + .flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10, + .mclk_10khz = 4800, +}; + +static phys_addr_t mx3_camera_base __initdata; +#define MX3_CAMERA_BUF_SIZE SZ_4M + +static int __init mx31moboard_init_cam(void) +{ + int dma, ret = -ENOMEM; + struct platform_device *pdev; + + imx31_add_ipu_core(&mx3_ipu_data); + + pdev = imx31_alloc_mx3_camera(&camera_pdata); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + dma = dma_declare_coherent_memory(&pdev->dev, + mx3_camera_base, mx3_camera_base, + MX3_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 mx31moboard_baseboard; +core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444); + +/* + * Board specific initialization. + */ +static void __init mx31moboard_init(void) +{ + mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins), + "moboard"); + + platform_add_devices(devices, ARRAY_SIZE(devices)); + + imx31_add_imx_uart0(&uart0_pdata); + imx31_add_imx_uart4(&uart4_pdata); + + imx31_add_imx_i2c0(&moboard_i2c0_data); + imx31_add_imx_i2c1(&moboard_i2c1_data); + + imx31_add_spi_imx1(&moboard_spi1_pdata); + imx31_add_spi_imx2(&moboard_spi2_pdata); + + gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq"); + gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3)); + spi_register_board_info(moboard_spi_board_info, + ARRAY_SIZE(moboard_spi_board_info)); + + imx31_add_mxc_mmc(0, &sdhc1_pdata); + + mx31moboard_init_cam(); + + usb_xcvr_reset(); + + moboard_usbh2_init(); + + switch (mx31moboard_baseboard) { + case MX31NOBOARD: + break; + case MX31DEVBOARD: + mx31moboard_devboard_init(); + break; + case MX31MARXBOT: + mx31moboard_marxbot_init(); + break; + case MX31SMARTBOT: + case MX31EYEBOT: + mx31moboard_smartbot_init(mx31moboard_baseboard); + break; + default: + printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n", + mx31moboard_baseboard); + } +} + +static void __init mx31moboard_timer_init(void) +{ + mx31_clocks_init(26000000); +} + +struct sys_timer mx31moboard_timer = { + .init = mx31moboard_timer_init, +}; + +static void __init mx31moboard_reserve(void) +{ + /* reserve 4 MiB for mx3-camera */ + mx3_camera_base = memblock_alloc(MX3_CAMERA_BUF_SIZE, + MX3_CAMERA_BUF_SIZE); + memblock_free(mx3_camera_base, MX3_CAMERA_BUF_SIZE); + memblock_remove(mx3_camera_base, MX3_CAMERA_BUF_SIZE); +} + +MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard") + /* Maintainer: Valentin Longchamp, EPFL Mobots group */ + .boot_params = MX3x_PHYS_OFFSET + 0x100, + .reserve = mx31moboard_reserve, + .map_io = mx31_map_io, + .init_early = imx31_init_early, + .init_irq = mx31_init_irq, + .timer = &mx31moboard_timer, + .init_machine = mx31moboard_init, +MACHINE_END |