[edk2-devel] [PATCH v2 4/4] Platform/RaspberryPi: Invert default Arasan, Emmc2 routing

[Andrei Warkentin]

Reviewed-by: Andrei Warkentin <awarkentin at vmware.com>
________________________________
From: Jeremy Linton <jeremy.linton at arm.com>
Sent: Monday, February 1, 2021 4:53 PM
To: devel at edk2.groups.io <devel at edk2.groups.io>
Cc: pete at akeo.ie <pete at akeo.ie>; Andrei Warkentin <awarkentin at vmware.com>; samer.el-haj-mahmoud at arm.com <samer.el-haj-mahmoud at arm.com>; leif at nuviainc.com <leif at nuviainc.com>; ardb+tianocore at kernel.org <ardb+tianocore at kernel.org>; Jeremy Linton <jeremy.linton at arm.com>
Subject: [PATCH v2 4/4] Platform/RaspberryPi: Invert default Arasan, Emmc2 routing

In order for the wifi to work, and the SD to run at full
speed we need to bind the sd slot to the eMMC2 controller.

Since we now have a driver for the eMMC2 controller
there isn't any reason to leave the SD card bound
to the older Arasan controller.

Signed-off-by: Jeremy Linton <jeremy.linton at arm.com>
---
 Platform/RaspberryPi/RPi4/RPi4.dsc  | 2 +-
 Platform/RaspberryPi/RPi4/Readme.md | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Platform/RaspberryPi/RPi4/RPi4.dsc b/Platform/RaspberryPi/RPi4/RPi4.dsc
index 9962df0076..e0fad6f744 100644
--- a/Platform/RaspberryPi/RPi4/RPi4.dsc
+++ b/Platform/RaspberryPi/RPi4/RPi4.dsc
@@ -475,7 +475,7 @@
   # SD-related.

   #



-  gRaspberryPiTokenSpaceGuid.PcdSdIsArasan|L"SdIsArasan"|gConfigDxeFormSetGuid|0x0|1

+  gRaspberryPiTokenSpaceGuid.PcdSdIsArasan|L"SdIsArasan"|gConfigDxeFormSetGuid|0x0|0

   gRaspberryPiTokenSpaceGuid.PcdMmcForce1Bit|L"MmcForce1Bit"|gConfigDxeFormSetGuid|0x0|0

   gRaspberryPiTokenSpaceGuid.PcdMmcForceDefaultSpeed|L"MmcForceDefaultSpeed"|gConfigDxeFormSetGuid|0x0|0

   gRaspberryPiTokenSpaceGuid.PcdMmcSdDefaultSpeedMHz|L"MmcSdDefaultSpeedMHz"|gConfigDxeFormSetGuid|0x0|25

diff --git a/Platform/RaspberryPi/RPi4/Readme.md b/Platform/RaspberryPi/RPi4/Readme.md
index 3b2ed44e3c..80899f4ca4 100644
--- a/Platform/RaspberryPi/RPi4/Readme.md
+++ b/Platform/RaspberryPi/RPi4/Readme.md
@@ -181,7 +181,7 @@ Limit RAM to 3 GB            | `RamLimitTo3GB` | Disable = `0x00000000` <br> Ena
 System Table Selection       | `SystemTableMode`| ACPI = `0x00000000` (default)<br> ACPI + Devicetree = `0x00000001` <br> Devicetree = `0x00000002`

 Asset Tag                    | `AssetTag` | String, 32 characters or less (e.g. `L"ABCD123"`)<br> (default `L""`)

 **SD/MMC Configuration**     |

-uSD/eMMC Routing             | `SdIsArasan` | Arasan SDHC = `0x00000001` (default) <br> eMMC2 SDHCI = `0x00000000`

+uSD/eMMC Routing             | `SdIsArasan` | Arasan SDHC = `0x00000001` <br> eMMC2 SDHCI = `0x00000000` (default)

 Multi-Block Support          | `MmcDisableMulti` | Multi-block transfers = `0x00000000` (default)<br> Single block transfers = `0x00000001`

 uSD Max Bus Width            | `MmcForce1Bit` | 4-bit Mode = `0x00000000`  (default)<br> 1-bit Mode = `0x00000001`

 uSD Force Default Speed      | `MmcForceDefaultSpeed` | Allow High Speed = `0x00000000` (default)<br> Force Default Speed = `0x00000001`

--
2.13.7



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