tree 17704f7ef36ce51f9b1c8adb869de5e6fb0a3a06
parent ba61676ff9f8225ebc0ea33ad9f48862e718fd01
author Haibo Chen <haibo.chen@nxp.com> 1592212692 +0800
committer Peng Fan <peng.fan@nxp.com> 1592978730 +0800

mmc: retry CMD1 in mmc_send_op_cond() until the eMMC is ready

According to eMMC specification v5.1 section 6.4.3, we should issue
CMD1 repeatedly in the idle state until the eMMC is ready even if
mmc_send_op_cond() send CMD1 with argument = 0. Otherwise some eMMC
devices seems to enter the inactive mode after mmc_complete_op_cond()
issued CMD0 when the eMMC device is busy.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>