* [PATCH 1/1] EmbeddedPkg: Send command when MMC ask for response
@ 2019-05-09 3:53 Loh, Tien Hock
0 siblings, 0 replies; only message in thread
From: Loh, Tien Hock @ 2019-05-09 3:53 UTC (permalink / raw)
To: devel, thloh85; +Cc: Tien Hock, Loh, Leif Lindholm, Ard Biesheuvel
From: "Tien Hock, Loh" <tien.hock.loh@intel.com>
Send command when MMC ask for response in DwEmmcReceiveResponse, and
command is a pending command (eg. DMA needs to be set up first)
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 | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
index fd3a5bf685..c44e310c04 100644
--- a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
+++ b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c
@@ -400,6 +400,8 @@ DwEmmcSendCommand (
mDwEmmcCommand = Cmd;
mDwEmmcArgument = Argument;
} else {
+ mDwEmmcCommand = Cmd;
+ mDwEmmcArgument = Argument;
Status = SendCommand (Cmd, Argument);
}
return Status;
@@ -412,10 +414,15 @@ DwEmmcReceiveResponse (
IN UINT32* Buffer
)
{
+ EFI_STATUS Status = EFI_SUCCESS;
+
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
+ if(IsPendingReadCommand (mDwEmmcCommand) || IsPendingWriteCommand(mDwEmmcCommand))
+ Status = SendCommand (mDwEmmcCommand, mDwEmmcArgument);
+
if ( (Type == MMC_RESPONSE_TYPE_R1)
|| (Type == MMC_RESPONSE_TYPE_R1b)
|| (Type == MMC_RESPONSE_TYPE_R3)
@@ -429,7 +436,7 @@ DwEmmcReceiveResponse (
Buffer[2] = MmioRead32 (DWEMMC_RESP2);
Buffer[3] = MmioRead32 (DWEMMC_RESP3);
}
- return EFI_SUCCESS;
+ return Status;
}
VOID
--
2.19.0
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