diff options
Diffstat (limited to 'target/linux/at91/patches/600-usb_vbus_active_high.patch')
| -rw-r--r-- | target/linux/at91/patches/600-usb_vbus_active_high.patch | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/target/linux/at91/patches/600-usb_vbus_active_high.patch b/target/linux/at91/patches/600-usb_vbus_active_high.patch new file mode 100644 index 000000000..0a55ac69a --- /dev/null +++ b/target/linux/at91/patches/600-usb_vbus_active_high.patch @@ -0,0 +1,84 @@ +--- a/arch/arm/mach-at91/at91cap9_devices.c ++++ b/arch/arm/mach-at91/at91cap9_devices.c +@@ -77,7 +77,7 @@ + /* Enable VBus control for UHP ports */ + for (i = 0; i < data->ports; i++) { + if (data->vbus_pin[i]) +- at91_set_gpio_output(data->vbus_pin[i], 0); ++ at91_set_gpio_output(data->vbus_pin[i], data->vbus_active_high); + } + + usbh_data = *data; +--- a/arch/arm/mach-at91/at91sam9263_devices.c ++++ b/arch/arm/mach-at91/at91sam9263_devices.c +@@ -71,7 +71,7 @@ + /* Enable VBus control for UHP ports */ + for (i = 0; i < data->ports; i++) { + if (data->vbus_pin[i]) +- at91_set_gpio_output(data->vbus_pin[i], 0); ++ at91_set_gpio_output(data->vbus_pin[i], data->vbus_active_high); + } + + usbh_data = *data; +--- a/arch/arm/mach-at91/at91sam9g45_devices.c ++++ b/arch/arm/mach-at91/at91sam9g45_devices.c +@@ -119,7 +119,7 @@ + /* Enable VBus control for UHP ports */ + for (i = 0; i < data->ports; i++) { + if (data->vbus_pin[i]) +- at91_set_gpio_output(data->vbus_pin[i], 0); ++ at91_set_gpio_output(data->vbus_pin[i], data->vbus_active_high); + } + + usbh_ohci_data = *data; +@@ -174,7 +174,7 @@ + /* Enable VBus control for UHP ports */ + for (i = 0; i < data->ports; i++) { + if (data->vbus_pin[i]) +- at91_set_gpio_output(data->vbus_pin[i], 0); ++ at91_set_gpio_output(data->vbus_pin[i], data->vbus_active_high); + } + + usbh_ehci_data = *data; +--- a/arch/arm/mach-at91/include/mach/board.h ++++ b/arch/arm/mach-at91/include/mach/board.h +@@ -93,8 +93,9 @@ + + /* USB Host */ + struct at91_usbh_data { +- u8 ports; /* number of ports on root hub */ +- u8 vbus_pin[2]; /* port power-control pin */ ++ u8 ports; /* number of ports on root hub */ ++ u8 vbus_pin[2]; /* port power-control pin */ ++ u8 vbus_active_high; /* true == vbus_pins are active high */ + }; + extern void __init at91_add_device_usbh(struct at91_usbh_data *data); + extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data); +--- a/drivers/usb/host/ohci-at91.c ++++ b/drivers/usb/host/ohci-at91.c +@@ -277,14 +277,13 @@ + if (pdata) { + /* REVISIT make the driver support per-port power switching, + * and also overcurrent detection. Here we assume the ports +- * are always powered while this driver is active, and use +- * active-low power switches. ++ * are always powered while this driver is active. + */ + for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) { + if (pdata->vbus_pin[i] <= 0) + continue; + gpio_request(pdata->vbus_pin[i], "ohci_vbus"); +- gpio_direction_output(pdata->vbus_pin[i], 0); ++ gpio_direction_output(pdata->vbus_pin[i], pdata->vbus_active_high); + } + } + +@@ -301,7 +300,7 @@ + for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) { + if (pdata->vbus_pin[i] <= 0) + continue; +- gpio_direction_output(pdata->vbus_pin[i], 1); ++ gpio_direction_output(pdata->vbus_pin[i], !pdata->vbus_active_high); + gpio_free(pdata->vbus_pin[i]); + } + } |