tree cc5dd69148dcab38c8934e155b306d708c6a1f3b
parent c14223f90e2fa091eff216a4d00158948fb83208
author Haojian Zhuang <haojian.zhuang@linaro.org> 1542763189 +0800
committer Haojian Zhuang <haojian.zhuang@linaro.org> 1543195223 +0800

mmc: poll eMMC status after EXT_CSD command

EXT_CSD command needs to access data from eMMC device. Add the
operation of polling eMMC device status. Make sure the command is
finished.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>