diff --git a/src/util/flashrom/default.nix b/src/util/flashrom/default.nix
index 9e44ec8..c2e437d 100644
--- a/src/util/flashrom/default.nix
+++ b/src/util/flashrom/default.nix
@@ -13,6 +13,9 @@
 # chips and can also write to the embedded controller (EC) flash,
 # which is a separate chip
 , forChromebook ? false
+
+, writeProtectSupport ? true
+, overlappingFmapRegionSupport ? false
 }:
 
 stdenv.mkDerivation {
@@ -36,13 +39,14 @@ stdenv.mkDerivation {
   buildInputs = lib.optional (!stdenv.hostPlatform.isStatic) libftdi1
                 ++ [ libusb1 pciutils ];
 
-  patches =
-    if !forChromebook then [
-      ./0001-implement-wp-enable-disable-for-gigadevice-flash-chi.patch
-      ./0002-layout.c-allow-nested-regions.patch
-    ] else [
-      ../../platform/kevin/chromebook-flashrom-kludges.patch
-    ];
+  patches = lib.optionals (writeProtectSupport && !forChromebook) [
+    # the forChromebook fork already has (Google's version of) the enableWriteProtect patches
+    ./0001-implement-wp-enable-disable-for-gigadevice-flash-chi.patch
+  ] ++ lib.optionals forChromebook [
+    ../../platform/kevin/chromebook-flashrom-kludges.patch
+  ] ++ lib.optionals overlappingFmapRegionSupport [
+    ./0002-layout.c-allow-nested-regions.patch
+  ];
 
   makeFlags = if !forChromebook then [
     "PREFIX=$(out)" "libinstall"
@@ -54,6 +58,10 @@ stdenv.mkDerivation {
     mv $out/sbin/flashrom $out/sbin/flashrom-chromebook
   '';
 
+  passthru = {
+    inherit forChromebook writeProtectSupport overlappingFmapRegionSupport;
+  };
+
   meta = with lib; {
     homepage = "https://www.flashrom.org";
     description = "Utility for reading, writing, erasing and verifying flash ROM chips";