diff --git a/arch/arm/include/asm/arch-mx35/imx-regs.h b/arch/arm/include/asm/arch-mx35/imx-regs.h
index fb9dc68e09a906a87e43c5119a25a79a1b034a6f..25c324eb36f06c5b0b22adc982642d30cca280f6 100644
--- a/arch/arm/include/asm/arch-mx35/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx35/imx-regs.h
@@ -323,9 +323,5 @@ struct esdc_regs {
 
 #define CCM_RCSR_NF_16BIT_SEL	(1 << 14)
 
-extern unsigned int get_board_rev(void);
-extern int is_soc_rev(int rev);
-extern int sdhc_init(void);
-
 #endif
 #endif /* __ASM_ARCH_MX35_H */