diff --git a/hw/bsp/esp32s2_saola/board.mk b/hw/bsp/esp32s2_saola/board.mk
new file mode 100644
index 000000000..92ca884c4
--- /dev/null
+++ b/hw/bsp/esp32s2_saola/board.mk
@@ -0,0 +1,2 @@
+# Cross Compiler for ESP32
+CROSS_COMPILE = xtensa-esp32-elf-