diff options
Diffstat (limited to 'arch/arm/mach-mx3/mx31moboard.c')
| -rw-r--r-- | arch/arm/mach-mx3/mx31moboard.c | 134 |
1 files changed, 133 insertions, 1 deletions
diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c index 2a2da4739ecf..9243de54041a 100644 --- a/arch/arm/mach-mx3/mx31moboard.c +++ b/arch/arm/mach-mx3/mx31moboard.c @@ -16,9 +16,12 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <linux/delay.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> @@ -36,6 +39,7 @@ #include <mach/iomux-mx3.h> #include <mach/i2c.h> #include <mach/mmc.h> +#include <mach/mx31.h> #include "devices.h" @@ -55,6 +59,26 @@ static unsigned int moboard_pins[] = { 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, + /* 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, }; static struct physmap_flash_data mx31moboard_flash_data = { @@ -142,8 +166,109 @@ static struct imxmmc_platform_data sdhc1_pdata = { .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, +}; + +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 platform_device *devices[] __initdata = { &mx31moboard_flash, + &mx31moboard_leds_device, }; static int mx31moboard_baseboard; @@ -162,11 +287,18 @@ static void __init mxc_board_init(void) mxc_register_device(&mxc_uart_device0, &uart_pdata); mxc_register_device(&mxc_uart_device4, &uart_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(&mxcsdhc_device0, &sdhc1_pdata); + usb_xcvr_reset(); + + moboard_usbotg_init(); + mxc_register_device(&mxc_otg_udc_device, &usb_pdata); + switch (mx31moboard_baseboard) { case MX31NOBOARD: break; @@ -197,7 +329,7 @@ MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard") .io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc, .boot_params = PHYS_OFFSET + 0x100, .map_io = mx31_map_io, - .init_irq = mxc_init_irq, + .init_irq = mx31_init_irq, .init_machine = mxc_board_init, .timer = &mx31moboard_timer, MACHINE_END |