diff --git a/drivers/net/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c
index bb4fb01..ac3dae1 100644
--- a/drivers/net/xilinx_emaclite.c
+++ b/drivers/net/xilinx_emaclite.c
@@ -342,7 +342,7 @@
 
 }
 
-int xilinx_emaclite_initialize (bd_t *bis, int base_addr)
+int xilinx_emaclite_initialize(bd_t *bis, unsigned long base_addr)
 {
 	struct eth_device *dev;
 	struct xemaclite *emaclite;
@@ -366,7 +366,7 @@
 	emaclite->rxpp = 1;
 #endif
 
-	sprintf(dev->name, "Xelite.%x", base_addr);
+	sprintf(dev->name, "Xelite.%lx", base_addr);
 
 	dev->iobase = base_addr;
 	dev->init = emaclite_init;