From: Haibo Chen <[email protected]> On imx6Q/imx6DL, we find if config the DTOCV to 0~3, it will impact cmd6 behavior, after cmd6 get transfer complete interrupt, the data0 line will keep low over 5 seconds. This should be a IC bug on imx6Q/DL. For other platforms, do not has this issue.
To fix this issue, fix the DTOCV to 0xE, the max setting, this also align with Linux configuration. Signed-off-by: Haibo Chen <[email protected]> Reviewed-by: Ye Li <[email protected]> --- drivers/mmc/fsl_esdhc_imx.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c index e0e1326..7b31ed8 100644 --- a/drivers/mmc/fsl_esdhc_imx.c +++ b/drivers/mmc/fsl_esdhc_imx.c @@ -43,6 +43,12 @@ #include "mmc_private.h" #endif +#ifndef ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE +#ifdef CONFIG_FSL_USDHC +#define ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE 1 +#endif +#endif + DECLARE_GLOBAL_DATA_PTR; #define SDHCI_IRQ_EN_BITS (IRQSTATEN_CC | IRQSTATEN_TC | \ -- 2.7.4
