diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/meson-gx-mmc.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c index 3cc6334acdb1..5a959783304b 100644 --- a/drivers/mmc/host/meson-gx-mmc.c +++ b/drivers/mmc/host/meson-gx-mmc.c @@ -83,6 +83,7 @@ #define CFG_RC_CC_MASK 0xf #define CFG_STOP_CLOCK BIT(22) #define CFG_CLK_ALWAYS_ON BIT(18) +#define CFG_CHK_DS BIT(20) #define CFG_AUTO_CLK BIT(23) #define SD_EMMC_STATUS 0x48 @@ -408,6 +409,16 @@ static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) val &= ~(CFG_RC_CC_MASK << CFG_RC_CC_SHIFT); val |= ilog2(SD_EMMC_CFG_CMD_GAP) << CFG_RC_CC_SHIFT; + val &= ~CFG_DDR; + if (ios->timing == MMC_TIMING_UHS_DDR50 || + ios->timing == MMC_TIMING_MMC_DDR52 || + ios->timing == MMC_TIMING_MMC_HS400) + val |= CFG_DDR; + + val &= ~CFG_CHK_DS; + if (ios->timing == MMC_TIMING_MMC_HS400) + val |= CFG_CHK_DS; + writel(val, host->regs + SD_EMMC_CFG); if (val != orig) |