diff --git a/arch/sandbox/include/asm/types.h b/arch/sandbox/include/asm/types.h
index 88c84bae7c..6d3eb1f3de 100644
--- a/arch/sandbox/include/asm/types.h
+++ b/arch/sandbox/include/asm/types.h
@@ -48,8 +48,8 @@ typedef unsigned long long u64;
 #define BITS_PER_LONG	CONFIG_SANDBOX_BITS_PER_LONG
 
 typedef unsigned long dma_addr_t;
-typedef unsigned long phys_addr_t;
-typedef unsigned long phys_size_t;
+typedef u32 phys_addr_t;
+typedef u32 phys_size_t;
 
 #endif /* __KERNEL__ */
 
diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
index 0884ad3a02..a4edc624bc 100644
--- a/include/configs/sandbox.h
+++ b/include/configs/sandbox.h
@@ -75,7 +75,6 @@
 #define CONFIG_SYS_LOAD_ADDR		0x00000000
 #define CONFIG_SYS_MEMTEST_START	0x00100000
 #define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + 0x1000)
-#define CONFIG_PHYS_64BIT
 #define CONFIG_SYS_FDT_LOAD_ADDR	0x1000000
 
 /* Size of our emulated memory */