diff --git a/src/soc/intel/common/block/include/intelblocks/systemagent.h b/src/soc/intel/common/block/include/intelblocks/systemagent.h
index cf5613853e..d70706256e 100644
--- a/src/soc/intel/common/block/include/intelblocks/systemagent.h
+++ b/src/soc/intel/common/block/include/intelblocks/systemagent.h
@@ -18,10 +18,10 @@
 #define TOLUD	0xbc /* Top of Low Used Memory */
 
 /* MCHBAR */
-#define MCHBAR8(x)	(*(volatile u8 *)(MCH_BASE_ADDRESS + x))
-#define MCHBAR16(x)	(*(volatile u16 *)(MCH_BASE_ADDRESS + x))
-#define MCHBAR32(x)	(*(volatile u32 *)(MCH_BASE_ADDRESS + x))
-#define MCHBAR64(x)	(*(volatile u64 *)(MCH_BASE_ADDRESS + x))
+#define MCHBAR8(x)	(*(volatile u8 *)(uintptr_t)(MCH_BASE_ADDRESS + x))
+#define MCHBAR16(x)	(*(volatile u16 *)(uintptr_t)(MCH_BASE_ADDRESS + x))
+#define MCHBAR32(x)	(*(volatile u32 *)(uintptr_t)(MCH_BASE_ADDRESS + x))
+#define MCHBAR64(x)	(*(volatile u64 *)(uintptr_t)(MCH_BASE_ADDRESS + x))
 
 /* Perform System Agent Initialization during Bootblock phase */
 void bootblock_systemagent_early_init(void);