diff options
Diffstat (limited to 'arch/arm/mach-mx3/mach-mx31moboard.c')
| -rw-r--r-- | arch/arm/mach-mx3/mach-mx31moboard.c | 580 |
1 files changed, 580 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mach-mx31moboard.c b/arch/arm/mach-mx3/mach-mx31moboard.c new file mode 100644 index 000000000000..63f991f8817f --- /dev/null +++ b/arch/arm/mach-mx3/mach-mx31moboard.c @@ -0,0 +1,580 @@ +/* + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/fsl_devices.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/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/imx-uart.h> +#include <mach/iomux-mx3.h> +#include <mach/ipu.h> +#include <mach/i2c.h> +#include <mach/mmc.h> +#include <mach/mxc_ehci.h> +#include <mach/mx3_camera.h> +#include <mach/spi.h> +#include <mach/ulpi.h> + +#include "devices.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, + /* SEL */ + MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9, + MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11, + /* 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) +{ + gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack"); + gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0); + return 0; +} + +static struct imxuart_platform_data uart0_pdata = { + .init = moboard_uart0_init, +}; + +static struct imxuart_platform_data uart4_pdata = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +static struct imxi2c_platform_data moboard_i2c0_pdata = { + .bitrate = 400000, +}; + +static struct imxi2c_platform_data moboard_i2c1_pdata = { + .bitrate = 100000, +}; + +static int moboard_spi1_cs[] = { + MXC_SPI_CS(0), + MXC_SPI_CS(2), +}; + +static struct spi_imx_master moboard_spi1_master = { + .chipselect = moboard_spi1_cs, + .num_chipselect = ARRAY_SIZE(moboard_spi1_cs), +}; + +static struct regulator_consumer_supply sdhc_consumers[] = { + { + .dev = &mxcsdhc_device0.dev, + .supply = "sdhc0_vcc", + }, + { + .dev = &mxcsdhc_device1.dev, + .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 = &mx3_camera.dev, + .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 mc13783_regulator_init_data moboard_regulators[] = { + { + .id = MC13783_REGU_VMMC1, + .init_data = &sdhc_vreg_data, + }, + { + .id = MC13783_REGU_VCAM, + .init_data = &cam_vreg_data, + }, +}; + +static struct mc13783_platform_data moboard_pmic = { + .regulators = moboard_regulators, + .num_regulators = ARRAY_SIZE(moboard_regulators), + .flags = MC13783_USE_REGULATOR | MC13783_USE_RTC | + MC13783_USE_ADC, +}; + +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 struct spi_imx_master moboard_spi2_master = { + .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 struct imxmmc_platform_data sdhc1_pdata = { + .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) + +static void usb_xcvr_reset(void) +{ + gpio_request(USB_RESET_B, "usb-reset"); + gpio_direction_output(USB_RESET_B, 0); + mdelay(1); + gpio_set_value(USB_RESET_B, 1); +} + +#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 OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC) + +static void moboard_usbotg_init(void) +{ + 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); + + gpio_request(OTG_EN_B, "usb-udc-en"); + gpio_direction_output(OTG_EN_B, 0); +} + +static struct fsl_usb2_platform_data usb_pdata = { + .operating_mode = FSL_USB2_DR_DEVICE, + .phy_mode = FSL_USB2_PHY_ULPI, +}; + +#if defined(CONFIG_USB_ULPI) + +#define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6) + +static int moboard_usbh2_hw_init(struct platform_device *pdev) +{ + int ret = gpio_request(USBH2_EN_B, "usbh2-en"); + if (ret) + return ret; + + mxc_iomux_set_gpr(MUX_PGP_UH2, true); + + 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_SRXD6, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG); + + gpio_direction_output(USBH2_EN_B, 0); + + return 0; +} + +static int moboard_usbh2_hw_exit(struct platform_device *pdev) +{ + gpio_free(USBH2_EN_B); + return 0; +} + +static struct mxc_usbh_platform_data usbh2_pdata = { + .init = moboard_usbh2_hw_init, + .exit = moboard_usbh2_hw_exit, + .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, + .flags = MXC_EHCI_POWER_PINS_ENABLED, +}; + +static int __init moboard_usbh2_init(void) +{ + usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, + USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT); + + return mxc_register_device(&mxc_usbh2, &usbh2_pdata); +} +#else +static inline int moboard_usbh2_init(void) { return 0; } +#endif + + +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, + }, +}; + +#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1) +#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1) +#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1) +#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1) + +static void mx31moboard_init_sel_gpios(void) +{ + if (!gpio_request(SEL0, "sel0")) { + gpio_direction_input(SEL0); + gpio_export(SEL0, true); + } + + if (!gpio_request(SEL1, "sel1")) { + gpio_direction_input(SEL1); + gpio_export(SEL1, true); + } + + if (!gpio_request(SEL2, "sel2")) { + gpio_direction_input(SEL2); + gpio_export(SEL2, true); + } + + if (!gpio_request(SEL3, "sel3")) { + gpio_direction_input(SEL3); + gpio_export(SEL3, true); + } +} + +static struct ipu_platform_data mx3_ipu_data = { + .irq_base = MXC_IPU_IRQ_START, +}; + +static struct platform_device *devices[] __initdata = { + &mx31moboard_flash, + &mx31moboard_leds_device, +}; + +static struct mx3_camera_pdata camera_pdata = { + .dma_dev = &mx3_ipu.dev, + .flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10, + .mclk_10khz = 4800, +}; + +#define CAMERA_BUF_SIZE (4*1024*1024) + +static int __init mx31moboard_cam_alloc_dma(const size_t buf_size) +{ + dma_addr_t dma_handle; + void *buf; + int dma; + + if (buf_size < 2 * 1024 * 1024) + return -EINVAL; + + buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL); + if (!buf) { + pr_err("%s: cannot allocate camera buffer-memory\n", __func__); + return -ENOMEM; + } + + memset(buf, 0, buf_size); + + dma = dma_declare_coherent_memory(&mx3_camera.dev, + dma_handle, dma_handle, buf_size, + DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE); + + /* The way we call dma_declare_coherent_memory only a malloc can fail */ + return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM; +} + +static int mx31moboard_baseboard; +core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444); + +/* + * Board specific initialization. + */ +static void __init mxc_board_init(void) +{ + mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins), + "moboard"); + + platform_add_devices(devices, ARRAY_SIZE(devices)); + + mxc_register_device(&mxc_uart_device0, &uart0_pdata); + + mxc_register_device(&mxc_uart_device4, &uart4_pdata); + + mx31moboard_init_sel_gpios(); + + mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata); + mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata); + + mxc_register_device(&mxc_spi_device1, &moboard_spi1_master); + mxc_register_device(&mxc_spi_device2, &moboard_spi2_master); + + 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)); + + mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata); + + mxc_register_device(&mx3_ipu, &mx3_ipu_data); + if (!mx31moboard_cam_alloc_dma(CAMERA_BUF_SIZE)) + mxc_register_device(&mx3_camera, &camera_pdata); + + usb_xcvr_reset(); + + moboard_usbotg_init(); + mxc_register_device(&mxc_otg_udc_device, &usb_pdata); + moboard_usbh2_init(); + + switch (mx31moboard_baseboard) { + case MX31NOBOARD: + break; + case MX31DEVBOARD: + mx31moboard_devboard_init(); + break; + case MX31MARXBOT: + mx31moboard_marxbot_init(); + 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, +}; + +MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard") + /* Maintainer: Valentin Longchamp, EPFL Mobots group */ + .phys_io = MX31_AIPS1_BASE_ADDR, + .io_pg_offst = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc, + .boot_params = PHYS_OFFSET + 0x100, + .map_io = mx31_map_io, + .init_irq = mx31_init_irq, + .init_machine = mxc_board_init, + .timer = &mx31moboard_timer, +MACHINE_END + |