sdhci-pci: enable SD card interface on Merrifield

Intel Merrifield provides an interface to an external SD card.
Enable it here.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index d38d701..3833c5f 100644 (file)
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -419,6 +419,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
 /* Define Host controllers for Intel Merrifield platform */
 #define INTEL_MRFLD_EMMC_0     0
 #define INTEL_MRFLD_EMMC_1     1
+#define INTEL_MRFLD_SD         2
 #define INTEL_MRFLD_SDIO       3
 
 static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot)
@@ -432,12 +433,14 @@ static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot)
                                         MMC_CAP_8_BIT_DATA |
                                         MMC_CAP_1_8V_DDR;
                break;
+       case INTEL_MRFLD_SD:
+               slot->host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
+               break;
        case INTEL_MRFLD_SDIO:
                slot->host->mmc->caps |= MMC_CAP_NONREMOVABLE |
                                         MMC_CAP_POWER_OFF_CARD;
                break;
        default:
-               /* SD support is not ready yet */
                return -ENODEV;
        }
        return 0;