Silicon/Rockchip: Add HS400 disable flag for SDHCI

edk2-porting · Aug 3, 2023 · 6f41ec8 · 6f41ec8
1 parent 4584499
commit 6f41ec8
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Showing 3 changed files with 4 additions and 1 deletion.
diff --git a/edk2-rockchip/Silicon/Rockchip/Drivers/DwcSdhciDxe/DwcSdhciDxe.c b/edk2-rockchip/Silicon/Rockchip/Drivers/DwcSdhciDxe/DwcSdhciDxe.c
@@ -22,6 +22,7 @@
 #include "DwcSdhciDxe.h"
 
 #define EMMC_FORCE_HIGH_SPEED   FixedPcdGetBool(PcdDwcSdhciForceHighSpeed)
+#define EMMC_DISABLE_HS400      FixedPcdGetBool(PcdDwcSdhciDisableHs400)
 
 STATIC EFI_HANDLE mSdMmcControllerHandle;
 
@@ -58,7 +59,7 @@ EmmcSdMmcCapability (
     return EFI_NOT_FOUND;
   }
 
-  Capability->Hs400 = 1;
+  Capability->Hs400 = !EMMC_DISABLE_HS400;
 
   if (EMMC_FORCE_HIGH_SPEED) {
     Capability->BaseClkFreq = 52;

diff --git a/edk2-rockchip/Silicon/Rockchip/Drivers/DwcSdhciDxe/DwcSdhciDxe.inf b/edk2-rockchip/Silicon/Rockchip/Drivers/DwcSdhciDxe/DwcSdhciDxe.inf
@@ -44,6 +44,7 @@
 [Pcd]
   gRockchipTokenSpaceGuid.PcdDwcSdhciBaseAddress
   gRockchipTokenSpaceGuid.PcdDwcSdhciForceHighSpeed
+  gRockchipTokenSpaceGuid.PcdDwcSdhciDisableHs400
 
 [Depex]
   TRUE
diff --git a/edk2-rockchip/Silicon/Rockchip/RockchipPkg.dec b/edk2-rockchip/Silicon/Rockchip/RockchipPkg.dec
@@ -58,6 +58,7 @@
 
   gRockchipTokenSpaceGuid.PcdDwcSdhciBaseAddress|0x0|UINT32|0x40000035
   gRockchipTokenSpaceGuid.PcdDwcSdhciForceHighSpeed|FALSE|BOOLEAN|0x40000036
+  gRockchipTokenSpaceGuid.PcdDwcSdhciDisableHs400|FALSE|BOOLEAN|0x40000037
 
   gRockchipTokenSpaceGuid.SpiRK806BaseAddr|0|UINT32|0x21200002