diff --git a/sdm845Pkg/Library/sdm845Lib/sdm845Helper.S b/sdm845Pkg/Library/sdm845Lib/sdm845Helper.S
index 487d06d..1f27486 100644
--- a/sdm845Pkg/Library/sdm845Lib/sdm845Helper.S
+++ b/sdm845Pkg/Library/sdm845Lib/sdm845Helper.S
@@ -26,6 +26,8 @@ startlabel:
   bne	docopy
   ret
 docopy:
+  mov x10, FixedPcdGet64 (DeviceTreeStore)
+  str x0, [x10] // oh my fdt
   // find our start address by getting our expected offset, then subtracting it from our actual address
   ldr	x6, =FixedPcdGet64 (PcdFdBaseAddress)
   sub	x5, x5, x6 // x5 now holds offset of ArmPlatformPeiBootAction from start of FD base
diff --git a/sdm845Pkg/Library/sdm845Lib/sdm845Lib.inf b/sdm845Pkg/Library/sdm845Lib/sdm845Lib.inf
index 3473413..856d5df 100644
--- a/sdm845Pkg/Library/sdm845Lib/sdm845Lib.inf
+++ b/sdm845Pkg/Library/sdm845Lib/sdm845Lib.inf
@@ -44,3 +44,4 @@
   gArmTokenSpaceGuid.PcdSystemMemorySize
   gArmTokenSpaceGuid.PcdFdBaseAddress
   gArmTokenSpaceGuid.PcdFdSize
+  gsdm845PkgTokenSpaceGuid.DeviceTreeStore
diff --git a/sdm845Pkg/sdm845Pkg.dec b/sdm845Pkg/sdm845Pkg.dec
index 09633a4..ca903a9 100644
--- a/sdm845Pkg/sdm845Pkg.dec
+++ b/sdm845Pkg/sdm845Pkg.dec
@@ -63,3 +63,5 @@
   gsdm845PkgTokenSpaceGuid.PcdDeviceVendor|"Qualcomm"|VOID*|0x0000a301
   gsdm845PkgTokenSpaceGuid.PcdDeviceProduct|"Snapdragon 845 Device"|VOID*|0x0000a302
   gsdm845PkgTokenSpaceGuid.PcdDeviceCodeName|"sdm845"|VOID*|0x0000a303
+
+  gsdm845PkgTokenSpaceGuid.DeviceTreeStore|0x83300000|UINT64|0x0000a501