diff options
| author | Daniel Mack <daniel@caiaq.de> | 2009-11-19 12:02:09 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-11-19 17:11:01 +0100 |
| commit | a050c8e9b70b90a3e3b808a12d985a31e19c2f95 (patch) | |
| tree | d8f3136c438d16c858726e7a3baac45ad1157cd3 /arch/arm | |
| parent | 84677d114a7bcba11981a76ee60498a1b41d9d94 (diff) | |
ARM: MX3: add USB functions for mx31litekit
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-mx3/mx31lite.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mx31lite.c b/arch/arm/mach-mx3/mx31lite.c index 03762a36d29..4651e2376a7 100644 --- a/arch/arm/mach-mx3/mx31lite.c +++ b/arch/arm/mach-mx3/mx31lite.c @@ -28,6 +28,8 @@ #include <linux/smsc911x.h> #include <linux/mfd/mc13783.h> #include <linux/spi/spi.h> +#include <linux/usb/otg.h> +#include <linux/usb/ulpi.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -44,6 +46,8 @@ #include <mach/irqs.h> #include <mach/mxc_nand.h> #include <mach/spi.h> +#include <mach/mxc_ehci.h> +#include <mach/ulpi.h> #include "devices.h" @@ -127,6 +131,56 @@ static struct spi_board_info mc13783_spi_dev __initdata = { }; /* + * USB + */ + +#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \ + PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU) + +static int usbh2_init(struct platform_device *pdev) +{ + int pins[] = { + MX31_PIN_USBH2_DATA0__USBH2_DATA0, + MX31_PIN_USBH2_DATA1__USBH2_DATA1, + MX31_PIN_USBH2_CLK__USBH2_CLK, + MX31_PIN_USBH2_DIR__USBH2_DIR, + MX31_PIN_USBH2_NXT__USBH2_NXT, + MX31_PIN_USBH2_STP__USBH2_STP, + }; + + mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2"); + + 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); + + mxc_iomux_set_gpr(MUX_PGP_UH2, true); + + /* chip select */ + mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO), + "USBH2_CS"); + gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS"); + gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0); + + return 0; +} + +static struct mxc_usbh_platform_data usbh2_pdata = { + .init = usbh2_init, + .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, + .flags = MXC_EHCI_POWER_PINS_ENABLED, +}; + +/* * This structure defines the MX31 memory map. */ static struct map_desc mx31lite_io_desc[] __initdata = { @@ -177,6 +231,12 @@ static void __init mxc_board_init(void) mxc_register_device(&mxc_spi_device1, &spi1_pdata); spi_register_board_info(&mc13783_spi_dev, 1); + /* USB */ + usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, + USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT); + + mxc_register_device(&mxc_usbh2, &usbh2_pdata); + /* SMSC9117 IRQ pin */ ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq"); if (ret) |