mmc: sdhci: enable tuning for DDR50

CMD19 tuning is also available for DDR50 mode.

Signed-off-by: Weijun Yang <york.yang@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Weijun Yang 2015-10-04 12:04:12 +00:00 • committed by Ulf Hansson
commit 9faac7b95e