diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index 7f42b7d0adcb..4f6347c9fe68 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -179,9 +179,7 @@ static void __init cell_setup_arch(void)
 	conswitchp = &dummy_con;
 #endif
 
-#ifdef CONFIG_MMIO_NVRAM
 	mmio_nvram_init();
-#endif
 }
 
 static int __init cell_probe(void)
diff --git a/include/asm-powerpc/nvram.h b/include/asm-powerpc/nvram.h
index 9877982508bf..4e7059cc6113 100644
--- a/include/asm-powerpc/nvram.h
+++ b/include/asm-powerpc/nvram.h
@@ -10,6 +10,8 @@
 #ifndef _ASM_POWERPC_NVRAM_H
 #define _ASM_POWERPC_NVRAM_H
 
+#include <linux/errno.h>
+
 #define NVRW_CNT 0x20
 #define NVRAM_HEADER_LEN 16 /* sizeof(struct nvram_header) */
 #define NVRAM_BLOCK_LEN 16
@@ -71,7 +73,16 @@ extern int nvram_clear_error_log(void);
 extern struct nvram_partition *nvram_find_partition(int sig, const char *name);
 
 extern int pSeries_nvram_init(void);
+
+#ifdef CONFIG_MMIO_NVRAM
 extern int mmio_nvram_init(void);
+#else
+static inline int mmio_nvram_init(void)
+{
+	return -ENODEV;
+}
+#endif
+
 #endif /* __KERNEL__ */
 
 /* PowerMac specific nvram stuffs */