ARM i.MX: Visstrim_M10: Add board version detection.
Visstrim_M10 boards have 3 gpios to detect the expansion board version attached and other 3 to detect the motherboard revision. Signed-off-by: NJavier Martin <javier.martin@vista-silicon.com> Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
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