[edk2-devel] [PATCH v2] EmbeddedPkg: Clear CTYPE on initialization
Loh, Tien Hock
tien.hock.loh at intel.com
Thu May 9 08:02:04 UTC 2019
From: "Tien Hock, Loh" <tien.hock.loh at 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 at intel.com>
Cc: Leif Lindholm <leif.lindholm at linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel at 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 e0068655ca..c6c8e04917 100644
--- a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
+++ b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
@@ -205,6 +205,7 @@ 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 {
--
2.19.0
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