diff --git a/tools/cpp/gen_crosstool.py b/tools/cpp/gen_crosstool.py
index af28c56..547faf0 100644
--- a/tools/cpp/gen_crosstool.py
+++ b/tools/cpp/gen_crosstool.py
@@ -47,6 +47,13 @@
       '%NAME%': 'cortex-m4f',
       '%CPU%': '__MK64FX512__',
       '%F_CPU%': '120000000',
+      '%LINKER_SCRIPT%': 'motors/core/kinetis_192k.ld',
+      })
+  add_m4f_toolchain(crosstool_proto.toolchain.add(), m4f_proto, {
+      '%NAME%': 'cortex-m4f-k22',
+      '%CPU%': '__MK22FX512__',
+      '%F_CPU%': '120000000',
+      '%LINKER_SCRIPT%': 'motors/core/kinetis_128k.ld',
       })
 
   with open(args[2], 'w') as f: