diff --git a/board/nvidia/common/board.h b/board/nvidia/common/board.h
index 1f57086..80fdcbe 100644
--- a/board/nvidia/common/board.h
+++ b/board/nvidia/common/board.h
@@ -26,5 +26,6 @@
 
 void gpio_config_uart(void);
 int tegra2_mmc_init(int dev_index, int bus_width, int pwr_gpio, int cd_gpio);
+void gpio_early_init_uart(void);
 
 #endif	/* BOARD_H */