[U-Boot] [PATCH 2/3] ARM: Tegra: USB: Add driver support for Tegra30/Tegra114

[Jim Lin]

On Fri, 2013-05-03 at 03:29 +0800, Stephen Warren wrote:
> On 04/29/2013 03:21 AM, Jim Lin wrote:
> > Tegra30 and Tegra114 are compatible except
> > 1. T30 takes 55 ms to finish Port Reset. T114 takes
> >    50 ms.
> 
> Is that 55-vs-50 some aspect of the HW specification itself, or the
> overall result of multiple separate delays? I ask because the statement
> that one piece of HW differs from another only in a delay, especially
> where that delay is enormous in HW terms, seem very unusual.

50 ms comes from USB 2.0 specification for root port.
55 ms comes from T30 Technical Reference Manual.
Overall result of multiple separate delays.

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