Commit 97618aca authored by yinbo.zhu's avatar yinbo.zhu Committed by Ulf Hansson

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
...@@ -785,6 +785,10 @@ static void esdhc_init(struct platform_device *pdev, struct sdhci_host *host) ...@@ -785,6 +785,10 @@ static void esdhc_init(struct platform_device *pdev, struct sdhci_host *host)
pltfm_host = sdhci_priv(host); pltfm_host = sdhci_priv(host);
esdhc = sdhci_pltfm_priv(pltfm_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); host_ver = sdhci_readw(host, SDHCI_HOST_VERSION);
esdhc->vendor_ver = (host_ver & SDHCI_VENDOR_VER_MASK) >> esdhc->vendor_ver = (host_ver & SDHCI_VENDOR_VER_MASK) >>
SDHCI_VENDOR_VER_SHIFT; SDHCI_VENDOR_VER_SHIFT;
......
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