mmc: sdhci-pci: select HC erase size for Medfield eMMC

Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

drivers/mmc/host/sdhci-pci.c

@@ -244,7 +244,8 @@ static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
 static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
 {
 	slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
-	slot->host->mmc->caps2 = MMC_CAP2_BOOTPART_NOACC;
+	slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC |
+				  MMC_CAP2_HC_ERASE_SZ;
 	return 0;
 }