Re: [PATCH] USB: EHCI: tegra: set txfill_tuning

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On Mon, 14 Apr 2014, Stephen Warren wrote:

> From: Stephen Warren <swarren@xxxxxxxxxx>
> 
> To avoid memory fetch underflows with larger USB transfers, Tegra SoCs
> need txfill_tuning's txfifothresh register field set to a non-default
> value. Add a custom reset override in order to set this up.
> 
> These values are recommended practice for all Tegra chips. However,
> I've only noticed practical problems when not setting them this way on
> systems using Tegra124. Hence, CC: stable only for recent kernels which
> actually support Tegra124.
> 
> Cc: <stable@xxxxxxxxxxxxxxx> # 3.14+
> Signed-off-by: Stephen Warren <swarren@xxxxxxxxxx>

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

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