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-rw-r--r--ArmPkg/ArmPkg.dec6
1 files changed, 6 insertions, 0 deletions
diff --git a/ArmPkg/ArmPkg.dec b/ArmPkg/ArmPkg.dec
index 4d5db9f89f..da3cb02aaa 100644
--- a/ArmPkg/ArmPkg.dec
+++ b/ArmPkg/ArmPkg.dec
@@ -94,6 +94,12 @@
gArmTokenSpaceGuid.PcdNormalFdBaseAddress|0|UINT32|0x0000002B
gArmTokenSpaceGuid.PcdNormalFdSize|0|UINT32|0x0000002C
+ # System Memory (DRAM): These PCDs define the region of in-built system memory
+ # Some platforms can get DRAM extensions, these additional regions will be declared
+ # to UEFI by ArmPLatformPlib
+ gArmTokenSpaceGuid.PcdSystemMemoryBase|0|UINT32|0x00000029
+ gArmTokenSpaceGuid.PcdSystemMemorySize|0|UINT32|0x0000002A
+
#
# ARM MPCore MailBox PCDs
#