diff --git a/include/configs/phycore_imx8mm.h b/include/configs/phycore_imx8mm.h
index b13787bc24..e74f2b2795 100644
--- a/include/configs/phycore_imx8mm.h
+++ b/include/configs/phycore_imx8mm.h
@@ -91,7 +91,7 @@
 
 #define CONFIG_SYS_SDRAM_BASE		0x40000000
 
-#define PHYS_SDRAM			SZ_1G
+#define PHYS_SDRAM			0x40000000
 #define PHYS_SDRAM_SIZE                 SZ_2G /* 2GB DDR */
 
 /* UART */