[U-Boot] [PATCH 0/3] Tegra 2 USB ULPI series

Stephen Warren swarren at wwwdotorg.org
Mon Aug 20 20:09:52 CEST 2012


On 08/19/2012 10:08 AM, Lucas Stach wrote:
> With this series we are able to initialize USB controllers
> using an external ULPI phy AKA USB2 on Tegra 2 devices.
> 
> This was tested to work on a Toradex Colibri T20 board,
> where USB2 is used to access the ASIX ethernet chipset.
> Testing was done with "tegra20: usb: rework set_host_mode"
> applied. I did not spot any regressions on the UTMI ports.
> 
> Patchset is based on top of u-boot-tegra/next

Hmmm. I tried testing this on my local branch on Harmony, which has all
the patches necessary for multiple USB ports to work, and indeed they do
on Seaboard. However, this series (plus some Harmony-specific config and
.dts changes) didn't cause the ULPI port to work:-( Any idea why?


More information about the U-Boot mailing list