[edk2-devel][PATCH v2 2/6] Platform/RPi: Use GetModelInstalledMB () to read RAM size

["Pete Batard" <pete@akeo.ie>]

From: Andrei Warkentin <andrey.warkentin@gmail.com>

Use the call introduced in the previous commit to read the
platform's installed memory.

Signed-off-by: Pete Batard <pete@akeo.ie>
---
 Platform/RaspberryPi/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/Platform/RaspberryPi/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c b/Platform/RaspberryPi/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
index f25c439f89c8..5585cb846f41 100644
--- a/Platform/RaspberryPi/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
+++ b/Platform/RaspberryPi/Drivers/PlatformSmbiosDxe/PlatformSmbiosDxe.c
@@ -870,21 +870,19 @@ MemArrMapInfoUpdateSmbiosType19 (
   )
 {
   EFI_STATUS Status;
-  UINT32 BoardRevision = 0;
+  UINT32 InstalledMB = 0;
 
   // Note: Type 19 addresses are expressed in KB, not bytes
   // The memory layout used in all known Pi SoC's starts at 0
   mMemArrMapInfoType19.StartingAddress = 0;
+
   // The minimum RAM size used on any Raspberry Pi model is 256 MB
   mMemArrMapInfoType19.EndingAddress = 256 * 1024;
-  Status = mFwProtocol->GetModelRevision (&BoardRevision);
+  Status = mFwProtocol->GetModelInstalledMB (&InstalledMB);
   if (Status != EFI_SUCCESS) {
     DEBUG ((DEBUG_WARN, "Couldn't get the board memory size - defaulting to 256 MB: %r\n", Status));
   } else {
-    // www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
-    // Bits [20-22] indicate the amount of memory starting with 256MB (000b)
-    // and doubling in size for each value (001b = 512 MB, 010b = 1GB, etc.)
-    mMemArrMapInfoType19.EndingAddress <<= (BoardRevision >> 20) & 0x07;
+    mMemArrMapInfoType19.EndingAddress = InstalledMB * 1024;
   }
   mMemArrMapInfoType19.EndingAddress -= 1;
 
-- 
2.21.0.windows.1