diff --git a/.gitmodules b/.gitmodules
index 24ec7a8..7fcb364 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -2,3 +2,7 @@
 	path = ecsim
 	url = https://github.com/system76/ecsim.git
 	branch = master
+[submodule "ecflash"]
+	path = ecflash
+	url = https://github.com/system76/ecflash.git
+	branch = master
diff --git a/ecflash b/ecflash
new file mode 160000
index 0000000..863439d
--- /dev/null
+++ b/ecflash
@@ -0,0 +1 @@
+Subproject commit 863439d2c8794c1c4e78e0f70739bcb04643420d
diff --git a/src/board/system76/galp3-c/board.mk b/src/board/system76/galp3-c/board.mk
index eda45b2..7c88081 100644
--- a/src/board/system76/galp3-c/board.mk
+++ b/src/board/system76/galp3-c/board.mk
@@ -19,3 +19,7 @@ include $(SCRATCH_DIR)/scratch.mk
 # Include scratch header in main firmware
 CFLAGS+=-I$(BUILD)/include
 INCLUDE+=$(BUILD)/include/scratch.h
+
+flash: $(BUILD)/ec.rom
+	cargo build --manifest-path ecflash/Cargo.toml --example flash --release
+	sudo ecflash/target/release/examples/flash $<