On Fri, Jun 14, 2013 at 06:41:40PM +0800, Jim Lin wrote: [...]
diff --git a/board/nvidia/dts/tegra30-beaver.dts b/board/nvidia/dts/tegra30-beaver.dts
[...]
@@ -68,4 +69,9 @@ status = "okay"; bus-width = <8>; };
- usb@7d008000 {
nvidia,vbus-gpio = <&gpio 61 3>; /* PH5, USB13_VBUS_PULLUP */
This doesn't work for me on Beaver. I need to turn the above line into this:
nvidia,vbus-gpio = <&gpio 236 0>; /* PDD4 */
PDD4 is the correct GPIO according to the schematics and the pin is high-active. Also as far as I can tell, 3 is not a meaningful value for the U-Boot GPIO bindings. Only the value 1 (low-active) is used.
With that change applied on top of your patches I can see that a USB flash drive connected to USB3 is indeed powered. However I noticed something strange. When I try to use USB, I get this:
Tegra30 (Beaver) # usb start (Re)start USB... USB0: set_host_mode: GPIO 236 high USB EHCI 1.00 scanning bus 0 for devices... 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found scanning usb for ethernet devices... 0 Ethernet Device(s) found
So no storage device is detected, even though a USB flash drive is connected and powered properly. If I repeat the same command, however, the storage device is detected:
Tegra30 (Beaver) # usb reset (Re)start USB... USB0: set_host_mode: GPIO 236 high USB EHCI 1.00 scanning bus 0 for devices... 2 USB Device(s) found scanning usb for storage devices... 1 Storage Device(s) found scanning usb for ethernet devices... 0 Ethernet Device(s) found
Any idea what might be going on here?
Thierry