diff --git a/src/board/system76/galp3-c/include/board/keymap.h b/src/board/system76/galp3-c/include/board/keymap.h
index 43913ad..bd1b763 100644
--- a/src/board/system76/galp3-c/include/board/keymap.h
+++ b/src/board/system76/galp3-c/include/board/keymap.h
@@ -3,6 +3,36 @@
 
 #include <common/keymap.h>
 
+#define ___ 0
+
+// TODO: Conversion of physical layout to keyboard matrix
+#define LAYOUT( \
+    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, K0E, K0F, K0G, \
+    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
+    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2C, K2D, \
+    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, \
+    K40, K41, K42, K43, K44, K45, K46, K47, K48, K49, K4A, K4B, \
+    K50, K51, K52, K53, K54, K55, K56, K57, K58, K59, \
+    K60, K61, K62 \
+) { \
+    { ___, ___, ___, ___, ___, ___, K52, ___ }, \
+    { ___, ___, ___, ___, ___, ___, K50, K56 }, \
+    { ___, ___, ___, ___, ___, ___, K53, K55 }, \
+    { ___, ___, ___, ___, ___, ___, K40, K4B }, \
+    { K42, K41, K30, K31, K20, ___, K54, K21 }, \
+    { K44, K43, ___, K33, ___, ___, ___, K23 }, \
+    { K51, K45, K34, K35, K24, K25, ___, ___ }, \
+    { ___, K46, K36, K26, K12, K11, K10, K00 }, \
+    { K28, K47, K27, K15, K14, K13, K02, K01 }, \
+    { K22, K37, K38, ___, K17, K16, K04, K03 }, \
+    { K32, K48, K39, K29, K19, K18, K06, K05 }, \
+    { ___, K58, K49, K3A, K2A, K1A, K08, K07 }, \
+    { ___, ___, K4A, K3B, K2B, K1B, K0A, K09 }, \
+    { ___, ___, K0D, K2C, K1C, K62, K0E, K0B }, \
+    { ___, K2D, K60, K1D, K57, K0F, ___, K0G }, \
+    { ___, ___, K3C, ___, K61, K0C, ___, K59 } \
+}
+
 // Keymap output pins (16 for galago, 18 for darter)
 #define KM_OUT 18
 // Keymap input pins