Add flag ESDHC_FLAG_ENGCM07207 for enabling the workaround for errata ENGcm07207 and set the flag for i.MX25 and i.MX35 ESDHC.
Signed-off-by: Shawn Guo <[email protected]> --- drivers/mmc/host/sdhci-esdhc-imx.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index e046917..a5d7d15 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -89,6 +89,11 @@ * exeception. Bit1 of Vendor Spec registor is used to fix it. */ #define ESDHC_FLAG_MULTIBLK_NO_INT BIT(1) +/* + * The flag enables the workaround for ESDHC errata ENGcm07207 which + * presents on i.MX25 and i.MX35. + */ +#define ESDHC_FLAG_ENGCM07207 BIT(2) enum imx_esdhc_type { IMX25_ESDHC, @@ -865,6 +870,9 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) if (is_imx25_esdhc(imx_data)) imx_data->flags |= ESDHC_FLAG_NO_DMAS_BITS; + if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data)) + imx_data->flags |= ESDHC_FLAG_ENGCM07207; + imx_data->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); if (IS_ERR(imx_data->clk_ipg)) { err = PTR_ERR(imx_data->clk_ipg); @@ -905,7 +913,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; - if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data)) + if (imx_data->flags & ESDHC_FLAG_ENGCM07207) /* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */ host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK | SDHCI_QUIRK_BROKEN_ADMA; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
