diff --git a/cpu/mpc85xx/ddr-gen1.c b/cpu/mpc85xx/ddr-gen1.c
index b188906..9fc498e 100644
--- a/cpu/mpc85xx/ddr-gen1.c
+++ b/cpu/mpc85xx/ddr-gen1.c
@@ -66,10 +66,6 @@
 }
 
 #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
-extern void dma_init(void);
-extern uint dma_check(void);
-extern int dmacpy(phys_addr_t dest, phys_addr_t src, phys_size_t n);
-
 /*
  * Initialize all of memory for ECC, then enable errors.
  */
diff --git a/include/asm-ppc/fsl_dma.h b/include/asm-ppc/fsl_dma.h
index c9ec6b5..978283a 100644
--- a/include/asm-ppc/fsl_dma.h
+++ b/include/asm-ppc/fsl_dma.h
@@ -94,4 +94,9 @@
 	char	res4[56];
 } fsl_dma_t;
 
+#ifdef CONFIG_FSL_DMA
+void dma_init(void);
+int dmacpy(phys_addr_t dest, phys_addr_t src, phys_size_t n);
+#endif
+
 #endif	/* _ASM_DMA_H_ */