Got it, I wanted to make sure there wasn't some multiplexing voodoo which
I had never heard about. I remember the Beaglebone had the omap pin mux
....so figured pin control was similar.

Fortunately I don't need ethernet, but looking at the Olimex A20-SOM I'm
not sure all the SPI devices are available anyway.

Just purchased Device Tree for Dummies which should help things along.

Thanks for the help!



On Fri, Jul 4, 2014 at 3:24 PM, Maxime Ripard <
maxime.rip...@free-electrons.com> wrote:

> On Fri, Jul 04, 2014 at 02:27:32PM +0100, bruce bushby wrote:
> > Does this mean that it's not possible to have SPI0-SPI3 + ethernet
> > working at the same time?
>
> It is. The EMAC pins are also routed in the PH bank. So if your board
> uses the relevant PA pins for the SPI controllers, and the PH pins for
> the EMAC, it's fine.
>
> If you're using the PA pins for the EMAC, you're screwed, at least for
> SPI3.
>
> Maxime
>
> --
> Maxime Ripard, Free Electrons
> Embedded Linux, Kernel and Android engineering
> http://free-electrons.com
>

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