diff options
| author | Justin Waters <justin.waters@timesys.com> | 2008-05-20 17:25:18 -0400 |
|---|---|---|
| committer | Justin Waters <justin.waters@timesys.com> | 2008-05-20 17:25:18 -0400 |
| commit | 4c2a2437ea37c42778c318cb6626668518001193 (patch) | |
| tree | 5a5f18f3461162fbcac124971a258eb3e2cfb658 | |
| parent | 68bfb81f26a08b79c3e2e08a1e85b1b69f887009 (diff) | |
MX27LITE_GPIO: Fix pins for USBOTG interface
The USBOTG interface uses two GPIO pins for its PWR_EN and OC signals. These
pins are associated with the OTG interface and the PWR_EN is cleared since
the power enable signal for the power controller is low-true.
Signed-off-by: Justin Waters <justin.waters@timesys.com>
| -rw-r--r-- | arch/arm/mach-mx27/mx27lite_gpio.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/arm/mach-mx27/mx27lite_gpio.c b/arch/arm/mach-mx27/mx27lite_gpio.c index b4734635af49..5e8ff4262a66 100644 --- a/arch/arm/mach-mx27/mx27lite_gpio.c +++ b/arch/arm/mach-mx27/mx27lite_gpio.c @@ -302,10 +302,15 @@ int gpio_usbotg_hs_active(void) gpio_request_mux(MX27_PIN_USBOTG_CLK, GPIO_MUX_PRIMARY) || gpio_request_mux(MX27_PIN_USBOTG_DATA7, GPIO_MUX_PRIMARY) || - gpio_request_mux(MX27_PIN_USB_OC_B, GPIO_MUX_PRIMARY) || - gpio_request_mux(MX27_PIN_USB_PWR, GPIO_MUX_PRIMARY)) + /* Use TXDM and TXDP pins as power and Overcurrent control */ + gpio_request_mux(MX27_PIN_USBH1_TXDM, GPIO_MUX_GPIO) || + gpio_request_mux(MX27_PIN_USBH1_TXDP, GPIO_MUX_GPIO)) return -EINVAL; + mxc_set_gpio_direction(MX27_PIN_USBH1_TXDM, 0); /* USB1_PWR_nEN */ + mxc_set_gpio_direction(MX27_PIN_USBH1_TXDP, 1); /* USB1_nOC */ + mxc_set_gpio_dataout(MX27_PIN_USBH1_TXDM, 0); + //__raw_writew(PBC_BCTRL3_OTG_HS_EN, PBC_BCTRL3_CLEAR_REG); //__raw_writew(PBC_BCTRL3_OTG_VBUS_EN, PBC_BCTRL3_CLEAR_REG); @@ -328,8 +333,8 @@ void gpio_usbotg_hs_inactive(void) gpio_free_mux(MX27_PIN_USBOTG_CLK); gpio_free_mux(MX27_PIN_USBOTG_DATA7); - gpio_free_mux(MX27_PIN_USB_OC_B); - gpio_free_mux(MX27_PIN_USB_PWR); + gpio_free_mux(MX27_PIN_USBH1_TXDM); + gpio_free_mux(MX27_PIN_USBH1_TXDP); //__raw_writew(PBC_BCTRL3_OTG_HS_EN, PBC_BCTRL3_SET_REG); } |