From: Ryan QIAN Date: Thu, 2 Aug 2012 08:03:17 +0000 (+0800) Subject: ENGR00219191: mmc: esdhc: escape BROKEN_ADMA quirk on mx6dl TO 1.1 chips X-Git-Tag: v3.0.35-fsl_4.1.0~810 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9f9f33dc4a495743f3a46f9072ea98517f0586a8;p=karo-tx-linux.git ENGR00219191: mmc: esdhc: escape BROKEN_ADMA quirk on mx6dl TO 1.1 chips - On mx6dl TO 1.1, adma now can work when ahb bus frequency is low like 24Mhz. Note: hw issue number:TKT093233 Signed-off-by: Ryan QIAN --- diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 7beb8b9323bc..e1736869034d 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -821,6 +821,13 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK | SDHCI_QUIRK_BROKEN_ADMA; + /* + * on mx6dl TO 1.1, ADMA can work when ahb bus frequency is low, + * like 24Mhz. + */ + if (mx6dl_revision() >= IMX_CHIP_REVISION_1_1) + host->quirks &= ~SDHCI_QUIRK_BROKEN_ADMA; + if (cpu_is_mx6()) host->quirks2 |= SDHCI_QUIRK_BROKEN_AUTO_CMD23,