2/7] EmbeddedPkg: Fix DwEmmc driver bugs

[edk2-devel] [[PATCH v2] 2/7] 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 | 1 +
1 file changed, 1 insertion(+)

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[edk2-devel] [[PATCH v2] 2/7] EmbeddedPkg: Fix DwEmmc driver bugs

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

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

Clear CTYPE on initialization. This is important if previous bootloader
changes the CTYPE can cause the controller to not initialize correctly
if CTYPE is not reset to 0

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 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
index fa24802..058665b 100644
--- a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
+++ b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
@@ -206,6 +206,7 @@ DwEmmcNotifyState (
     MmioWrite32 (DWEMMC_TMOUT, ~0);
     MmioWrite32 (DWEMMC_IDINTEN, 0);
     MmioWrite32 (DWEMMC_BMOD, DWEMMC_IDMAC_SWRESET);
+    MmioWrite32 (DWEMMC_CTYPE, 0);
 
     MmioWrite32 (DWEMMC_BLKSIZ, DWEMMC_BLOCK_SIZE);
     do {
-- 
2.2.2


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