diff options
| author | Igor Grinberg <grinberg@compulab.co.il> | 2011-12-13 10:48:53 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2011-12-13 10:48:53 -0800 |
| commit | 039401f3efa890cd9974d8921c19359ac2084df3 (patch) | |
| tree | d7adfd4bb61b7552ab94270651a842e78796e5b3 /arch/arm/mach-omap2/board-cm-t35.c | |
| parent | 19ce643997c5b75df2410e9b632c2c29e6cf8ae2 (diff) | |
ARM: OMAP3: cm-t35: Add reset for USB hub
USB hub is not functional until is reset.
Reset the USB hub on SB-T35.
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
[tony@atomide.com: updated subject]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-cm-t35.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-cm-t35.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c index c417b7d004d1..865f96da771e 100644 --- a/arch/arm/mach-omap2/board-cm-t35.c +++ b/arch/arm/mach-omap2/board-cm-t35.c @@ -53,7 +53,8 @@ #include "hsmmc.h" #include "common-board-devices.h" -#define CM_T35_GPIO_PENDOWN 57 +#define CM_T35_GPIO_PENDOWN 57 +#define SB_T35_USB_HUB_RESET_GPIO 167 #define CM_T35_SMSC911X_CS 5 #define CM_T35_SMSC911X_GPIO 163 @@ -436,6 +437,23 @@ static struct usbhs_omap_board_data usbhs_bdata __initdata = { .reset_gpio_port[2] = -EINVAL }; +static void cm_t35_init_usbh(void) +{ + int err; + + err = gpio_request_one(SB_T35_USB_HUB_RESET_GPIO, + GPIOF_OUT_INIT_LOW, "usb hub rst"); + if (err) { + pr_err("SB-T35: usb hub rst gpio request failed: %d\n", err); + } else { + udelay(10); + gpio_set_value(SB_T35_USB_HUB_RESET_GPIO, 1); + msleep(1); + } + + usbhs_init(&usbhs_bdata); +} + static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { @@ -624,7 +642,7 @@ static void __init cm_t3x_common_init(void) cm_t35_init_display(); usb_musb_init(NULL); - usbhs_init(&usbhs_bdata); + cm_t35_init_usbh(); } static void __init cm_t35_init(void) |