[PATCH] i.MX51: Full iomux support

Lothar Waßmann LW at KARO-electronics.de
Wed Dec 15 10:19:15 EST 2010


Hi,

Sascha Hauer writes:
> On i.MX51 there are several pins which do not have a sel_input register
> associated (I2C) and so setting the SION bit becomes mandatory. On the
> other hand not all pins have a SION bit. I'm confused...
> 
sel_input has nothing to do with SION. sel_input is an additional
multiplexer that can route one of different pads for a given internal
function.
SION (according to the spec) enables the input path of a pad no matter
what function is chosen.


Lothar Waßmann
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