[PATCH] ARM: tegra/harmony: enable USB host ports

Mike Rapoport wrote at Thursday, June 09, 2011 12:53 AM:

On Wed, Jun 8, 2011 at 8:13 PM, Marc Zyngier [off-list ref] wrote:

quoted

quoted

I'm not sure if that platform data is appropriate for tegra_ehci1_device;
the ChromeOS kernel doesn't enable that port.

There's probably some kind of GPIO trickery involved to reset the
port...

I don't think it's possible to enable port 1 in host mode on
harmony... As far as I remember, port 1 is routed to mini-B connector
and there's nothing that would supply Vbus in the host mode...

Yes, looking at the schematic, I don't think I can see anything to drive
5v onto that connector, just detect whether it's there. For the other 3
USB ports, there's clearly something to drive 5v based on a signal from
the LAN/USB hub chip.

-- 
nvpublic