diff --git a/EmbeddedPkg/Universal/MmcDxe/Mmc.h b/EmbeddedPkg/Universal/MmcDxe/Mmc.h
index 46a156cecf..f4e0aa0366 100644
--- a/EmbeddedPkg/Universal/MmcDxe/Mmc.h
+++ b/EmbeddedPkg/Universal/MmcDxe/Mmc.h
@@ -138,6 +138,7 @@ typedef struct  {
   OCR       OCRData;
   CID       CIDData;
   CSD       CSDData;
+  UINT32    ECSD[128];      // MMC V4 extended card specific
 } CARD_INFO;
 
 typedef struct _MMC_HOST_INSTANCE {
diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
index 0b0a044540..3531fb4786 100644
--- a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
+++ b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
@@ -39,7 +39,6 @@ EmmcIdentificationMode (
   EFI_BLOCK_IO_MEDIA    *Media;
   EFI_STATUS Status;
   UINT32     RCA;
-  UINT32     ECSD[128];
 
   Host  = MmcHostInstance->MmcHost;
   Media = MmcHostInstance->BlockIo.Media;
@@ -91,7 +90,7 @@ EmmcIdentificationMode (
     DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD fetch error, Status=%r.\n", Status));
   }
 
-  Status = Host->ReadBlockData (Host, 0, 512, ECSD);
+  Status = Host->ReadBlockData (Host, 0, 512, (UINT32 *)&(MmcHostInstance->CardInfo.ECSD));
   if (EFI_ERROR (Status)) {
     DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD read error, Status=%r.\n", Status));
     return Status;
@@ -104,7 +103,7 @@ EmmcIdentificationMode (
   Media->LogicalBlocksPerPhysicalBlock = 1;
   Media->IoAlign = 4;
   // Compute last block using bits [215:212] of the ECSD
-  Media->LastBlock = ECSD[EMMC_ECSD_SIZE_OFFSET] - 1; // eMMC isn't supposed to report this for
+  Media->LastBlock = MmcHostInstance->CardInfo.ECSD[EMMC_ECSD_SIZE_OFFSET] - 1; // eMMC isn't supposed to report this for
   // Cards <2GB in size, but the model does.
 
   // Setup card type