diff --git a/arch/mips/include/asm/u-boot.h b/arch/mips/include/asm/u-boot.h
index 590649a..5fa4a6a 100644
--- a/arch/mips/include/asm/u-boot.h
+++ b/arch/mips/include/asm/u-boot.h
@@ -32,7 +32,7 @@
 #define _U_BOOT_H_	1
 
 typedef struct bd_info {
-	int		bi_baudrate;	/* serial console baudrate */
+	unsigned int	bi_baudrate;	/* serial console baudrate */
 	unsigned long	bi_arch_number;	/* unique id for this board */
 	unsigned long	bi_boot_params;	/* where this board expects params */
 	unsigned long	bi_memstart;	/* start of DRAM memory */