mmc: sdhci: Enable 8-bit bus width only for 3.0 spec onwards

[platform/kernel/u-boot.git] / drivers / mmc / sdhci.c

diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 1eaea04..c5631bf 100644 (file)
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -486,8 +486,10 @@ int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
                mmc->voltages |= host->voltages;
 
        mmc->host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT;
-       if (caps & SDHCI_CAN_DO_8BIT)
-               mmc->host_caps |= MMC_MODE_8BIT;
+       if ((host->version & SDHCI_SPEC_VER_MASK) >= SDHCI_SPEC_300) {
+               if (caps & SDHCI_CAN_DO_8BIT)
+                       mmc->host_caps |= MMC_MODE_8BIT;
+       }
        if (host->host_caps)
                mmc->host_caps |= host->host_caps;