mmc: sdhci-of-esdhc: fix eMMC couldn't work after kexec
The bit eSDHC_TBCTL[TB_EN] couldn't be reset by eSDHC_SYSCTL[RSTA] which is used to reset for all. The driver should make sure it's cleared before card initialization, otherwise the initialization would fail. Signed-off-by: Nyinbo.zhu <yinbo.zhu@nxp.com> Acked-by: NAdrian Hunter <adrian.hunter@intel.com> Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
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