diff options
| -rw-r--r-- | arch/arm/mach-imx/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mach-mx27_3ds.c | 71 |
2 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index fed3ee526a0..9a715ce7c7b 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -235,10 +235,13 @@ endchoice config MACH_MX27_3DS bool "MX27PDK platform" select SOC_IMX27 + select IMX_HAVE_PLATFORM_FSL_USB2_UDC select IMX_HAVE_PLATFORM_IMX2_WDT select IMX_HAVE_PLATFORM_IMX_KEYPAD select IMX_HAVE_PLATFORM_IMX_UART + select IMX_HAVE_PLATFORM_MXC_EHCI select IMX_HAVE_PLATFORM_MXC_MMC + select MXC_ULPI if USB_ULPI help Include support for MX27PDK platform. This includes specific configurations for the board and its peripherals. diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c index 1a7e879a454..0ee7a734832 100644 --- a/arch/arm/mach-imx/mach-mx27_3ds.c +++ b/arch/arm/mach-imx/mach-mx27_3ds.c @@ -23,16 +23,22 @@ #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 <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/time.h> #include <mach/hardware.h> #include <mach/common.h> #include <mach/iomux-mx27.h> +#include <mach/ulpi.h> #include "devices-imx27.h" #define SD1_EN_GPIO (GPIO_PORTB + 25) +#define OTG_PHY_RESET_GPIO (GPIO_PORTB + 23) static const int mx27pdk_pins[] __initconst = { /* UART1 */ @@ -67,6 +73,20 @@ static const int mx27pdk_pins[] __initconst = { 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, }; static const struct imxuart_platform_data uart_pdata __initconst = { @@ -118,6 +138,45 @@ static void mx27_3ds_sdhc1_enable_level_translator(void) 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; +} + +#if defined(CONFIG_USB_ULPI) + +static struct mxc_usbh_platform_data otg_pdata __initdata = { + .portsc = MXC_EHCI_MODE_ULPI, + .flags = MXC_EHCI_INTERFACE_DIFF_UNI, +}; +#endif + +static const struct fsl_usb2_platform_data otg_device_pdata __initconst = { + .operating_mode = FSL_USB2_DR_DEVICE, + .phy_mode = FSL_USB2_PHY_ULPI, +}; + +static int otg_mode_host; + +static int __init mx27_3ds_otg_mode(char *options) +{ + if (!strcmp(options, "host")) + otg_mode_host = 1; + else if (!strcmp(options, "device")) + otg_mode_host = 0; + else + pr_info("otg_mode neither \"host\" nor \"device\". " + "Defaulting to device\n"); + return 0; +} +__setup("otg_mode=", mx27_3ds_otg_mode); + + static void __init mx27pdk_init(void) { mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins), @@ -128,6 +187,18 @@ static void __init mx27pdk_init(void) imx27_add_imx_keypad(&mx27_3ds_keymap_data); imx27_add_mxc_mmc(0, &sdhc1_pdata); imx27_add_imx2_wdt(NULL); + otg_phy_init(); +#if defined(CONFIG_USB_ULPI) + if (otg_mode_host) { + otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, + ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); + + imx27_add_mxc_ehci_otg(&otg_pdata); + } +#endif + if (!otg_mode_host) + imx27_add_fsl_usb2_udc(&otg_device_pdata); + } static void __init mx27pdk_timer_init(void) |