diff --git a/board/tb0229/tb0229.c b/board/tb0229/tb0229.c
index d08b422..921bd3a 100644
--- a/board/tb0229/tb0229.c
+++ b/board/tb0229/tb0229.c
@@ -32,7 +32,7 @@
 }
 #endif
 
-long int initdram(int board_type)
+phys_size_t initdram(int board_type)
 {
 	return get_ram_size (CFG_SDRAM_BASE, 0x8000000);
 }