diff options
| author | Guennadi Liakhovetski <lg@denx.de> | 2009-05-04 13:13:52 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-05-07 16:19:50 +0200 |
| commit | eb05bbeb65cc1015bdd5c4cb72fd1694a3288e97 (patch) | |
| tree | 7427033c21d9d7f0723ede4a3ce44e7ab79828bb /arch/arm/mach-mx3/pcm037.c | |
| parent | bff0b53bd77df7e44a1d6b1a13162e26def5d17a (diff) | |
ARM: add USB device support to pcm037
Add OTG device definition and resources to i.MX31 and a pure USB device mode
support to the pcm037 board.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx3/pcm037.c')
| -rw-r--r-- | arch/arm/mach-mx3/pcm037.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/pcm037.c b/arch/arm/mach-mx3/pcm037.c index 5d7e0ca5c13..350cff5cc48 100644 --- a/arch/arm/mach-mx3/pcm037.c +++ b/arch/arm/mach-mx3/pcm037.c @@ -31,6 +31,7 @@ #include <linux/delay.h> #include <linux/spi/spi.h> #include <linux/irq.h> +#include <linux/fsl_devices.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -131,6 +132,54 @@ static struct resource pcm037_flash_resource = { .flags = IORESOURCE_MEM, }; +static int usbotg_pins[] = { + 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, +}; + +/* USB OTG HS port */ +static int __init gpio_usbotg_hs_activate(void) +{ + int ret = mxc_iomux_setup_multiple_pins(usbotg_pins, + ARRAY_SIZE(usbotg_pins), "usbotg"); + + if (ret < 0) { + printk(KERN_ERR "Cannot set up OTG pins\n"); + return ret; + } + + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST); + + return 0; +} + +/* OTG config */ +static struct fsl_usb2_platform_data usb_pdata = { + .operating_mode = FSL_USB2_DR_DEVICE, + .phy_mode = FSL_USB2_PHY_ULPI, +}; + static struct platform_device pcm037_flash = { .name = "physmap-flash", .id = 0, @@ -345,6 +394,8 @@ static void __init mxc_board_init(void) mxc_register_device(&mxcsdhc_device0, &sdhc_pdata); mxc_register_device(&mx3_ipu, &mx3_ipu_data); mxc_register_device(&mx3_fb, &mx3fb_pdata); + if (!gpio_usbotg_hs_activate()) + mxc_register_device(&mxc_otg_udc_device, &usb_pdata); } static void __init pcm037_timer_init(void) |