On 08/11/17 11:09, yinbo.zhu@xxxxxxx wrote: > From: "yinbo.zhu" <yinbo.zhu@xxxxxxx> > > 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: yinbo.zhu <yinbo.zhu@xxxxxxx> Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> > --- > Change in v2: > Replace ESDHC_TB_DIS with default register bit ESDHC_TB_EN > > drivers/mmc/host/sdhci-of-esdhc.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c > index d96a057a7db8..023c24bd0d94 100644 > --- a/drivers/mmc/host/sdhci-of-esdhc.c > +++ b/drivers/mmc/host/sdhci-of-esdhc.c > @@ -783,6 +783,10 @@ 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; > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
