mmc: tegra: support 4-bit operation too on 8-bit slots

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

diff --git a/drivers/mmc/tegra_mmc.c b/drivers/mmc/tegra_mmc.c
index 8fea6a6..1fd5592 100644 (file)
--- a/drivers/mmc/tegra_mmc.c
+++ b/drivers/mmc/tegra_mmc.c
@@ -547,10 +547,11 @@ int tegra_mmc_init(int dev_index, int bus_width, int pwr_gpio, int cd_gpio)
        mmc->getcd = tegra_mmc_getcd;
 
        mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
+       mmc->host_caps = 0;
        if (bus_width == 8)
-               mmc->host_caps = MMC_MODE_8BIT;
-       else
-               mmc->host_caps = MMC_MODE_4BIT;
+               mmc->host_caps |= MMC_MODE_8BIT;
+       if (bus_width >= 4)
+               mmc->host_caps |= MMC_MODE_4BIT;
        mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS | MMC_MODE_HC;
 
        /*