X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=EmbeddedPkg%2FUniversal%2FMmcDxe%2FMmcIdentification.c;h=0b0a0445404add550c1193d632de576a6b514839;hb=3201075377f80af632465361155f7498c177bad1;hp=2d8038ffe02f14ff66e0fb0d2958279eda2ca2ff;hpb=bab82372a9e6ce066fa725a792e71d07191046ca;p=mirror_edk2.git

diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
index 2d8038ffe0..0b0a044540 100644
--- a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
+++ b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c
@@ -222,14 +222,19 @@ MmcIdentificationMode (
 
   // Send CMD1 to get OCR (MMC)
   // This command only valid for MMC and eMMC
-  Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, EMMC_CMD1_CAPACITY_GREATER_THAN_2GB);
-  if (Status == EFI_SUCCESS) {
+  Timeout = MAX_RETRY_COUNT;
+  do {
+    Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, EMMC_CMD1_CAPACITY_GREATER_THAN_2GB);
+    if (EFI_ERROR (Status))
+      break;
     Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, (UINT32 *)&OcrResponse);
     if (EFI_ERROR (Status)) {
       DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));
       return Status;
     }
-
+    Timeout--;
+  } while (!OcrResponse.Ocr.PowerUp && (Timeout > 0));
+  if (Status == EFI_SUCCESS) {
     if (!OcrResponse.Ocr.PowerUp) {
       DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD1): Card initialisation failure, Status=%r.\n", Status));
       return EFI_DEVICE_ERROR;