20 Jan
2015
20 Jan
'15
4:23 p.m.
On Mon, Jan 19, 2015 at 06:33:43PM +0100, Paul Kocialkowski wrote:
When booting from USB peripheral boot, the bootrom will not properly deinit the MUSB controller, which doesn't clearly indicate an USB disconnection to the host and leaves U-Boot to deal with the state of the previous USB session.
On some host controller drivers (e.g. xhci_hcd), this ends up in a failure during set address, caused by the lack of proper disconnection notification.
Resetting the controller early in U-Boot notifies the host of the disconnection and doesn't hurt other use cases.
Signed-off-by: Paul Kocialkowski contact@paulk.fr
Reviewed-by: Tom Rini trini@ti.com
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Tom