[U-Boot] [U-Boot,1/1] dwc2 USB controller hangs with lan78xx

[Tom Rini]

On Mon, Jun 18, 2018 at 11:56:06AM -0700, Andrew Thomas wrote:

> This bug is the combination of dwc2 USB controller and lan78xx
> USB ethernet controller, which is the combination in use on
> the Raspberry Pi Model 3 B+.
> 
> When the host attempts to receive a packet, but a packet has not
> arrived, the lan78xx controller responds by setting BIR
> (Bulk-In Empty Response) to NAK. Unfortunately, this hangs
> the USB controller and requires the USB controller to
> be reset.
> 
> The fix proposed is to have the lan78xx controller respond
> by setting BIR to ZLP.
> 
> Signed-off-by: Andrew Thomas <andrew.thomas at oracle.com>
> Tested-by: Peter Robinson <pbrobinson at gmail.com>
> Reviewed-by: Alexander Graf <agraf at suse.de>

Applied to u-boot/master, thanks!

-- 
Tom
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