diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-of-esdhc.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-of-esdhc.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index 44b016baa585..d96a057a7db8 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -86,6 +86,17 @@ static u32 esdhc_readl_fixup(struct sdhci_host *host, return ret; } + /* + * DTS properties of mmc host are used to enable each speed mode + * according to soc and board capability. So clean up + * SDR50/SDR104/DDR50 support bits here. + */ + if (spec_reg == SDHCI_CAPABILITIES_1) { + ret = value & ~(SDHCI_SUPPORT_SDR50 | SDHCI_SUPPORT_SDR104 | + SDHCI_SUPPORT_DDR50); + return ret; + } + ret = value; return ret; } @@ -249,7 +260,11 @@ static u32 esdhc_be_readl(struct sdhci_host *host, int reg) u32 ret; u32 value; - value = ioread32be(host->ioaddr + reg); + if (reg == SDHCI_CAPABILITIES_1) + value = ioread32be(host->ioaddr + ESDHC_CAPABILITIES_1); + else + value = ioread32be(host->ioaddr + reg); + ret = esdhc_readl_fixup(host, reg, value); return ret; @@ -260,7 +275,11 @@ static u32 esdhc_le_readl(struct sdhci_host *host, int reg) u32 ret; u32 value; - value = ioread32(host->ioaddr + reg); + if (reg == SDHCI_CAPABILITIES_1) + value = ioread32(host->ioaddr + ESDHC_CAPABILITIES_1); + else + value = ioread32(host->ioaddr + reg); + ret = esdhc_readl_fixup(host, reg, value); return ret; |