set uefi nvram for convenience

packages/raspberrypi/uefi-rpi5/default.nix

@@ -23,8 +23,21 @@ let
 
     # Force maximum CPU speed.
     force_turbo=1
+
+    dtoverlay=vc4-kms-v3d-pi5.dtbo
+    dtoverlay=i2c0-pi5.dtbo
+    dtoverlay=i2c1-pi5.dtbo
+    dtoverlay=i2c2-pi5.dtbo
+    dtoverlay=i2c3-pi5.dtbo
+    dtoverlay=pisound-pi5.dtbo
+    dtoverlay=sdio-pi5.dtbo
+
+    dtoverlay=disable-wifi-pi5.dtbo
+
     EOF
   '';
+
+  nvram = ./nvram-block.bin;
 in
 stdenvNoCC.mkDerivation rec {
   pname = "uefi-rpi5";
@@ -42,12 +55,26 @@ stdenvNoCC.mkDerivation rec {
   dontBuild = true;
   # Firmware blobs do not need fixing and should not be modified
   dontFixup = true;
+  # fixupPhase = ''
+  #   runHook preFixup
+
+  #   dd if=${nvram} of="$src/RPI_EFI.fd" \
+  #    bs=1 seek=$((0x1d0060)) count=$((0x11c0)) conv=notrunc
+
+  #   runHook postFixup
+  # '';
 
   installPhase = ''
     runHook preInstall
     mkdir -p "$out"
 
-    cp -rv "$src" "$out/RPI_EFI.fd"
+    cp ${src} .
+
+    dd if=${nvram} of=./RPI_EFI.fd \
+     bs=1 seek=$((0x1d0060)) count=$((0x11c0)) conv=notrunc
+
+    cp -v ./RPI_EFI.fd "$out/RPI_EFI.fd"
+
     cat > "$out/config.txt" << ${defaultConfig}
 
     runHook postInstall