ARM: 6244/1: mmci: add variant data and default MCICLOCK support
Add a variant_data structure to handle the differences between the various variants of this peripheral. Add a first quirk for a default MCICLOCK value, required on the Ux500 variant where the enable bit needs to be always set, since it controls access to some registers. Acked-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NRabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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