diff --git a/Makefile b/Makefile
index c4fbeb7..2043f9a 100644
--- a/Makefile
+++ b/Makefile
@@ -53,6 +53,8 @@ INCLUDE+=$(wildcard $(ARCH_DIR)/include/arch/*.h) $(ARCH_DIR)/arch.mk
 CFLAGS+=-I$(ARCH_DIR)/include -D__ARCH__=$(ARCH)
 include $(ARCH_DIR)/arch.mk
 
+include $(ARCH_DIR)/toolchain.mk
+
 # The architecture defines build targets, no more is required
 endif
 
diff --git a/src/arch/8051/arch.mk b/src/arch/8051/arch.mk
index d88a86d..e69de29 100644
--- a/src/arch/8051/arch.mk
+++ b/src/arch/8051/arch.mk
@@ -1,27 +0,0 @@
-# SPDX-License-Identifier: GPL-3.0-only
-
-CC=sdcc -mmcs51 --model-large --code-size $(CODE_SIZE) --xram-size $(SRAM_SIZE) --Werror
-OBJ=$(sort $(patsubst src/%.c,$(BUILD)/%.rel,$(SRC)))
-
-# Run EC rom in simulator
-sim: $(BUILD)/ec.rom
-	cargo run \
-		--release \
-		--manifest-path ecsim/Cargo.toml \
-		--no-default-features \
-		-- $<
-
-# Convert from Intel Hex file to binary file
-$(BUILD)/ec.rom: $(BUILD)/ec.ihx
-	@mkdir -p $(@D)
-	objcopy -I ihex -O binary --gap-fill=0xFF $< $@
-
-# Link object files into Intel Hex file
-$(BUILD)/ec.ihx: $(OBJ)
-	@mkdir -p $(@D)
-	$(CC) $(LDFLAGS) -o $@ $^
-
-# Compile C files into object files
-$(OBJ): $(BUILD)/%.rel: src/%.c $(INCLUDE)
-	@mkdir -p $(@D)
-	$(CC) $(CFLAGS) -o $@ -c $<
diff --git a/src/arch/8051/toolchain.mk b/src/arch/8051/toolchain.mk
new file mode 100644
index 0000000..d88a86d
--- /dev/null
+++ b/src/arch/8051/toolchain.mk
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-3.0-only
+
+CC=sdcc -mmcs51 --model-large --code-size $(CODE_SIZE) --xram-size $(SRAM_SIZE) --Werror
+OBJ=$(sort $(patsubst src/%.c,$(BUILD)/%.rel,$(SRC)))
+
+# Run EC rom in simulator
+sim: $(BUILD)/ec.rom
+	cargo run \
+		--release \
+		--manifest-path ecsim/Cargo.toml \
+		--no-default-features \
+		-- $<
+
+# Convert from Intel Hex file to binary file
+$(BUILD)/ec.rom: $(BUILD)/ec.ihx
+	@mkdir -p $(@D)
+	objcopy -I ihex -O binary --gap-fill=0xFF $< $@
+
+# Link object files into Intel Hex file
+$(BUILD)/ec.ihx: $(OBJ)
+	@mkdir -p $(@D)
+	$(CC) $(LDFLAGS) -o $@ $^
+
+# Compile C files into object files
+$(OBJ): $(BUILD)/%.rel: src/%.c $(INCLUDE)
+	@mkdir -p $(@D)
+	$(CC) $(CFLAGS) -o $@ -c $<
diff --git a/src/arch/avr/arch.mk b/src/arch/avr/arch.mk
index 506822e..e69de29 100644
--- a/src/arch/avr/arch.mk
+++ b/src/arch/avr/arch.mk
@@ -1,30 +0,0 @@
-# SPDX-License-Identifier: GPL-3.0-only
-
-CC=avr-gcc -mmcu=$(EC_VARIANT)
-CFLAGS+=-Os -fstack-usage -Wall -Werror -Wl,--gc-sections -Wl,-u,vfprintf -lprintf_flt
-OBJCOPY = avr-objcopy
-OBJ=$(sort $(patsubst src/%.c,$(BUILD)/%.o,$(SRC)))
-
-# Run EC rom in simulator
-sim: $(BUILD)/ec.elf
-	simavr $< --mcu $(EC_VARIANT)
-
-# Convert from Intel Hex file to binary file
-$(BUILD)/ec.rom: $(BUILD)/ec.ihx
-	@mkdir -p $(@D)
-	$(OBJCOPY) -I ihex -O binary --gap-fill 0xFF $< $@
-
-# Convert from ELF file to Intel Hex file
-$(BUILD)/ec.ihx: $(BUILD)/ec.elf
-	@mkdir -p $(@D)
-	$(OBJCOPY) -j .text -j .data -O ihex $< $@
-
-# Link object files into ELF file
-$(BUILD)/ec.elf: $(OBJ)
-	@mkdir -p $(@D)
-	$(CC) -o $@ $^
-
-# Compile C files into object files
-$(BUILD)/%.o: src/%.c $(INCLUDE)
-	@mkdir -p $(@D)
-	$(CC) $(CFLAGS) -o $@ -c $<
diff --git a/src/arch/avr/toolchain.mk b/src/arch/avr/toolchain.mk
new file mode 100644
index 0000000..506822e
--- /dev/null
+++ b/src/arch/avr/toolchain.mk
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-3.0-only
+
+CC=avr-gcc -mmcu=$(EC_VARIANT)
+CFLAGS+=-Os -fstack-usage -Wall -Werror -Wl,--gc-sections -Wl,-u,vfprintf -lprintf_flt
+OBJCOPY = avr-objcopy
+OBJ=$(sort $(patsubst src/%.c,$(BUILD)/%.o,$(SRC)))
+
+# Run EC rom in simulator
+sim: $(BUILD)/ec.elf
+	simavr $< --mcu $(EC_VARIANT)
+
+# Convert from Intel Hex file to binary file
+$(BUILD)/ec.rom: $(BUILD)/ec.ihx
+	@mkdir -p $(@D)
+	$(OBJCOPY) -I ihex -O binary --gap-fill 0xFF $< $@
+
+# Convert from ELF file to Intel Hex file
+$(BUILD)/ec.ihx: $(BUILD)/ec.elf
+	@mkdir -p $(@D)
+	$(OBJCOPY) -j .text -j .data -O ihex $< $@
+
+# Link object files into ELF file
+$(BUILD)/ec.elf: $(OBJ)
+	@mkdir -p $(@D)
+	$(CC) -o $@ $^
+
+# Compile C files into object files
+$(BUILD)/%.o: src/%.c $(INCLUDE)
+	@mkdir -p $(@D)
+	$(CC) $(CFLAGS) -o $@ -c $<