From a2ef4562c25317f3d0731e79eb432db8ed9eb1ca Mon Sep 17 00:00:00 2001 From: Magnus Lilja Date: Fri, 14 May 2010 17:08:29 +0200 Subject: MXC: Add USB OTG (device) for i.MX31 PDK (3DS) board. Tested on actual hardware using the g_ether and g_serial gadget drivers. Signed-off-by: Magnus Lilja Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/mach-mx31_3ds.c | 55 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) (limited to 'arch/arm/mach-mx3/mach-mx31_3ds.c') diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c index f54af1e29ca4..55d6117fbae9 100644 --- a/arch/arm/mach-mx3/mach-mx31_3ds.c +++ b/arch/arm/mach-mx3/mach-mx31_3ds.c @@ -16,6 +16,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include #include #include #include @@ -26,6 +27,7 @@ #include #include #include +#include #include #include @@ -65,6 +67,21 @@ static int mx31_3ds_pins[] = { MX31_PIN_CSPI2_SS2__SS2, /*CS for MC13783 */ /* MC13783 IRQ */ IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO), + /* USB OTG reset */ + IOMUX_MODE(MX31_PIN_USB_PWR, IOMUX_CONFIG_GPIO), + /* 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, }; /* Regulators */ @@ -126,6 +143,41 @@ static struct mxc_nand_platform_data imx31_3ds_nand_flash_pdata = { #endif }; +/* + * USB OTG + */ + +#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 USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR) + +static void mx31_3ds_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(USBOTG_RST_B, "otgusb-reset"); + gpio_direction_output(USBOTG_RST_B, 0); + mdelay(1); + gpio_set_value(USBOTG_RST_B, 1); +} + +static struct fsl_usb2_platform_data usbotg_pdata = { + .operating_mode = FSL_USB2_DR_DEVICE, + .phy_mode = FSL_USB2_PHY_ULPI, +}; + static struct imxuart_platform_data uart_pdata = { .flags = IMXUART_HAVE_RTSCTS, }; @@ -315,6 +367,9 @@ static void __init mxc_board_init(void) spi_register_board_info(mx31_3ds_spi_devs, ARRAY_SIZE(mx31_3ds_spi_devs)); + mx31_3ds_usbotg_init(); + mxc_register_device(&mxc_otg_udc_device, &usbotg_pdata); + if (!mx31_3ds_init_expio()) platform_device_register(&smsc911x_device); } -- cgit v1.2.1