diff options
Diffstat (limited to 'EmbeddedPkg/Universal')
| -rw-r--r-- | EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c index 32efe19c31..08cc405ed8 100644 --- a/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c +++ b/EmbeddedPkg/Universal/MmcDxe/MmcIdentification.c @@ -222,7 +222,8 @@ MmcIdentificationMode ( return Status;
}
- // Send CMD1 to get OCR (SD / MMC)
+ // 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) {
Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, (UINT32 *)&OcrResponse);
@@ -242,13 +243,11 @@ MmcIdentificationMode ( else {
MmcHostInstance->CardInfo.OCRData.AccessMode = 0x0;
}
+ // Check whether MMC or eMMC
if (OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB ||
OcrResponse.Raw == EMMC_CMD1_CAPACITY_LESS_THAN_2GB) {
return EmmcIdentificationMode (MmcHostInstance, OcrResponse);
}
- } else {
- DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD1) : Failed to send command, Status=%r.\n", Status));
- return Status;
}
// Are we using SDIO ?
|