Re: [PATCH] net: macb: fix default configuration for GMAC on AT91

From: David Miller
Date: Sun Mar 13 2016 - 22:20:26 EST

From: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Date: Thu, 10 Mar 2016 16:44:32 +0100

> On AT91 SoCs, the User Register (USRIO) exposes a switch to configure the
> "Reduced" or "Traditional" version of the Media Independent Interface
> (RMII vs. MII or RGMII vs. GMII).
> As on the older EMAC version, on GMAC, this switch is set by default to the
> non-reduced type of interface, so use the existing capability and extend it to
> GMII as well. We then keep the current logic in the macb_init() function.
> The capabilities of sama5d2, sama5d4 and sama5d3 GEM interface are updated in
> the macb_config structure to be able to properly enable them with a traditional
> interface (GMII or MII).
> Reported-by: Romain HENRIET <romain.henriet@xxxxxxxxxxxxxxx>
> Signed-off-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>