From: "Tien Hock, Loh" <tien.hock....@intel.com>
Do not send CRC response check if the MMC command does not support CRC
response
Signed-off-by: Tien Hock, Loh <tien.hock....@intel.com>
Cc: Leif Lindholm <leif.lindh...@linaro.org>
Cc: Ard Biesheuvel <ard.biesheu...@linaro.org>
---
EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
index c44e310c04..e0068655ca 100644
--- a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
+++ b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
@@ -385,7 +385,7 @@ DwEmmcSendCommand (
BIT_CMD_READ | BIT_CMD_WAIT_PRVDATA_COMPLETE;
break;
default:
- Cmd = BIT_CMD_RESPONSE_EXPECT | BIT_CMD_CHECK_RESPONSE_CRC;
+ Cmd = BIT_CMD_RESPONSE_EXPECT;
break;
}
@@ -396,6 +396,10 @@ DwEmmcSendCommand (
else
IsACmd = FALSE;
+ if (!(MmcCmd & MMC_CMD_NO_CRC_RESPONSE)) {
+ Cmd |= BIT_CMD_CHECK_RESPONSE_CRC;
+ }
+
if (IsPendingReadCommand (Cmd) || IsPendingWriteCommand (Cmd)) {
mDwEmmcCommand = Cmd;
mDwEmmcArgument = Argument;
--
2.19.0
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