From: oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 15 Aug 2011 16:38:27 +0000 (+0000)
Subject: EmbeddedPkg/MmcDxe: Set the BlockLength at the beginning of the BlockIo transfer
X-Git-Tag: edk2-stable201903~14401
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=e0932788c3b2b9e57f1546cb201d355c11f308cd;hp=bb0f9e9ba31f9722faa84c5d57195df013660214

EmbeddedPkg/MmcDxe: Set the BlockLength at the beginning of the BlockIo transfer

Before the SetBlockLength command was called prior to a Read or Write command.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12133 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c b/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c
index 8fd86f7244..e222a784b7 100644
--- a/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c
+++ b/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c
@@ -498,6 +498,18 @@ MmcIoBlocks (
       DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));
       return Status;
     }
+
+    // Set Block Length
+    Status = MmcHost->SendCommand(MMC_CMD16, This->Media->BlockSize);
+    if (EFI_ERROR(Status)) {
+      DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD16): Error This->Media->BlockSize: %d and Error = %r\n",This->Media->BlockSize, Status));
+      return Status;
+    }
+
+    // Block Count (not used). Could return an error for SD card
+    if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {
+      MmcHost->SendCommand(MMC_CMD23, BlockCount);
+    }
   } else {
     // Maybe test if the card has changed to update gMmcMedia information
     if (MmcHostInstance->State == MmcTransferState) {
@@ -548,16 +560,6 @@ MmcIoBlocks (
       return EFI_NOT_READY;
     }
 
-    // Set Block Length
-    Status = MmcHost->SendCommand(MMC_CMD16, This->Media->BlockSize);
-    if (EFI_ERROR(Status)) {
-      DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD16): Error This->Media->BlockSize:%d and Error = %r\n",This->Media->BlockSize, Status));
-      return Status;
-    }
-
-    // Block Count (not used). Could return an error for SD card
-    MmcHost->SendCommand(MMC_CMD23, BlockCount);
-
     //Set command argument based on the card access mode (Byte mode or Block mode)
     if (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1) {
       CmdArg = Lba;