4/7] EmbeddedPkg: Fix DwEmmc driver bugs

[edk2-devel] [[PATCH v2] 4/7] EmbeddedPkg: Fix DwEmmc driver bugs

Loh, Tien Hock posted 1 patch 4 years, 11 months ago

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EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c | 4 ++++
1 file changed, 4 insertions(+)

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[edk2-devel] [[PATCH v2] 4/7] EmbeddedPkg: Fix DwEmmc driver bugs

Posted by Loh, Tien Hock 4 years, 11 months ago

From: "Tien Hock, Loh" <tien.hock.loh@intel.com>

Add ACMD51 support for SD, this is needed to do SEND_SCR command correctly

Signed-off-by: "Tien Hock, Loh" <tien.hock.loh@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
index 04fdcbf..32572a9 100644
--- a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
+++ b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
@@ -379,6 +379,10 @@ DwEmmcSendCommand (
     Cmd = BIT_CMD_RESPONSE_EXPECT | BIT_CMD_CHECK_RESPONSE_CRC |
            BIT_CMD_DATA_EXPECTED;
     break;
+  case MMC_INDX(51):
+    Cmd = BIT_CMD_RESPONSE_EXPECT | BIT_CMD_DATA_EXPECTED |
+           BIT_CMD_READ | BIT_CMD_WAIT_PRVDATA_COMPLETE;
+    break;
   default:
     Cmd = BIT_CMD_RESPONSE_EXPECT | BIT_CMD_CHECK_RESPONSE_CRC;
     break;
-- 
2.2.2


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