diff --git a/arch/x86/cpu/tangier/sdram.c b/arch/x86/cpu/tangier/sdram.c
index eae8d78..daa9909 100644
--- a/arch/x86/cpu/tangier/sdram.c
+++ b/arch/x86/cpu/tangier/sdram.c
@@ -99,7 +99,8 @@
 	     i < SFI_GET_NUM_ENTRIES(sb, struct sfi_mem_entry);		\
 	     i++, mentry++)						\
 
-static unsigned sfi_setup_e820(unsigned max_entries, struct e820entry *entries)
+static unsigned int sfi_setup_e820(unsigned int max_entries,
+				   struct e820entry *entries)
 {
 	struct sfi_table_simple *sb;
 	struct sfi_mem_entry *mentry;
@@ -188,7 +189,8 @@
 	return ram;
 }
 
-unsigned install_e820_map(unsigned max_entries, struct e820entry *entries)
+unsigned int install_e820_map(unsigned int max_entries,
+			      struct e820entry *entries)
 {
 	return sfi_setup_e820(max_entries, entries);
 }