From: mindachen1987 <minda.c...@starfivetech.com>
Add PCD for little endian CPU. During RX, the endianess of data receive
via DMA will be swap.
Cc: Sunil V L <suni...@ventanamicro.com>
Cc: Leif Lindholm <quic_llind...@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Li Yong <yong...@intel.com>
Co-authored-by: mindachen1987 <mindachen1...@starfivetech.com>
Signed-off-by: John Chew <yuinyee.c...@starfivetech.com>
---
Silicon/Synopsys/DesignWare/DesignWare.dec | 1 +
Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.c | 5 +++++
Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.inf | 1 +
3 files changed, 7 insertions(+)
diff --git a/Silicon/Synopsys/DesignWare/DesignWare.dec
b/Silicon/Synopsys/DesignWare/DesignWare.dec
index f7ec7927543c..751370a8b1af 100755
--- a/Silicon/Synopsys/DesignWare/DesignWare.dec
+++ b/Silicon/Synopsys/DesignWare/DesignWare.dec
@@ -31,3 +31,4 @@ [PcdsFixedAtBuild.common]
gDesignWareTokenSpaceGuid.PcdDwEmmcDxeClockFrequencyInHz|0x0|UINT32|0x00000003
gDesignWareTokenSpaceGuid.PcdDwEmmcDxeMaxClockFreqInHz|0x0|UINT32|0x00000004
gDesignWareTokenSpaceGuid.PcdDwEmmcDxeFifoDepth|0x0|UINT32|0x00000005
+
gDesignWareTokenSpaceGuid.PcdDwEmmcDxeCPULittleEndian|FALSE|BOOLEAN|0x00000008
diff --git a/Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.c
b/Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.c
index 7ac286c5f361..edda28a45d7c 100644
--- a/Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.c
+++ b/Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.c
@@ -588,6 +588,11 @@ DwEmmcReadBlockData (
}
Status = DwEmmcWaitDmaComplete(This, 1);
+ if (DWMCI_SD_READ_MASK(mDwEmmcArgument) && (FixedPcdGetBool
(PcdDwEmmcDxeCPULittleEndian))) {
+ Buffer[3] = SwapBytes32(Buffer[3]);
+ Buffer[4] = SwapBytes32(Buffer[4]);
+ }
+
out:
// Restore Tpl
gBS->RestoreTPL (Tpl);
diff --git a/Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.inf
b/Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.inf
index 7f70fe1e2a38..18c84a4172f9 100644
--- a/Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.inf
+++ b/Silicon/Synopsys/DesignWare/Drivers/DwEmmcDxe/DwEmmcDxe.inf
@@ -51,6 +51,7 @@ [Pcd]
gDesignWareTokenSpaceGuid.PcdDwEmmcDxeMaxClockFreqInHz
gDesignWareTokenSpaceGuid.PcdDwEmmcDxeFifoDepth
gDesignWareTokenSpaceGuid.PcdDwPermitObsoleteDrivers
+ gDesignWareTokenSpaceGuid.PcdDwEmmcDxeCPULittleEndian
[Depex]
TRUE
--
2.34.1
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