[U-Boot] [PATCH v4 1/1] tegra: usb: Fix device enumeration problem of USB1

Stephen Warren swarren at wwwdotorg.org
Thu Jun 21 07:41:39 CEST 2012


On 06/20/2012 09:24 PM, Jim Lin wrote:
> A known hardware issue of USB1 port where bit 1 (connect status
> change) of PORTSC register will be set after issuing Port Reset
> (like "usb reset" in u-boot command line).
> This will be treated as an error and stops later device enumeration.
> 
> Therefore we clear that bit after Port Reset in order to proceed
> later device enumeration.
> 
> Signed-off-by: Jim Lin <jilin at nvidia.com>

Acked-by: Stephen Warren <swarren at wwwdotorg.org>


More information about the U-Boot mailing list