diff --git a/board/iphase4539/iphase4539.c b/board/iphase4539/iphase4539.c
index 0ca9cf5..e5d0254 100644
--- a/board/iphase4539/iphase4539.c
+++ b/board/iphase4539/iphase4539.c
@@ -193,7 +193,7 @@
 	 }
 };
 
-long int initdram (int board_type)
+phys_size_t initdram (int board_type)
 {
 	volatile immap_t *immap = (immap_t *) CFG_IMMR;
 	volatile memctl8260_t *memctl = &immap->im_memctl;