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Commit 97618aca authored by yinbo.zhu's avatar yinbo.zhu Committed by Ulf Hansson
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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: default avataryinbo.zhu <yinbo.zhu@nxp.com>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 5f3a8601

drivers/mmc/host/sdhci-of-esdhc.c

+4 −0
Original line number Diff line number Diff line
@@ -785,6 +785,10 @@ static void esdhc_init(struct platform_device *pdev, struct sdhci_host *host) 
	pltfm_host = sdhci_priv(host);

	esdhc = sdhci_pltfm_priv(pltfm_host);



	val = sdhci_readl(host, ESDHC_TBCTL);

	val &= ~ESDHC_TB_EN;

	sdhci_writel(host, val, ESDHC_TBCTL);



	host_ver = sdhci_readw(host, SDHCI_HOST_VERSION);

	esdhc->vendor_ver = (host_ver & SDHCI_VENDOR_VER_MASK) >>

			     SDHCI_VENDOR_VER_SHIFT;