[U-Boot] [PATCH v2 3/3] wandboard: Simplify the Ethernet PHY configuration
Joe Hershberger
joe.hershberger at gmail.com
Tue Jan 5 22:06:15 CET 2016
Hi Fabio,
On Tue, Jan 5, 2016 at 1:02 PM, Fabio Estevam <festevam at gmail.com> wrote:
> From: Fabio Estevam <fabio.estevam at nxp.com>
>
> As per the AR8031 datasheet:
>
> "For a reliable power on reset, suggest to keep asserting the reset
> low long enough (10ms) to ensure the clock is stable and clock-to-reset
> 1ms requirement is satisfied."
>
> So do as suggested and also add a 100us delay after deasserting the
> reset line to guarantee that the PHY ID can be read correctly and the
> Atheros 8031 PHY driver can be loaded automatically.
>
> This results in a simpler code.
>
> Signed-off-by: Fabio Estevam <fabio.estevam at nxp.com>
Acked-by: Joe Hershberger <joe.hershberger at ni.com>
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