diff --git a/include/configs/rk3328_common.h b/include/configs/rk3328_common.h
index 3ff3331..e51e1b0 100644
--- a/include/configs/rk3328_common.h
+++ b/include/configs/rk3328_common.h
@@ -18,7 +18,7 @@
 #define CONFIG_SYS_INIT_SP_ADDR		0x00300000
 #define CONFIG_SYS_LOAD_ADDR		0x00800800
 #define CONFIG_SPL_STACK		0x00400000
-#define CONFIG_SPL_MAX_SIZE		0x100000
+#define CONFIG_SPL_MAX_SIZE		0x40000
 #define CONFIG_SPL_BSS_START_ADDR	0x2000000
 #define CONFIG_SPL_BSS_MAX_SIZE		0x2000
 
diff --git a/include/configs/rk3368_common.h b/include/configs/rk3368_common.h
index e4b2114..e57d0ef 100644
--- a/include/configs/rk3368_common.h
+++ b/include/configs/rk3368_common.h
@@ -27,7 +27,7 @@
 #define CONFIG_SYS_INIT_SP_ADDR		0x00300000
 #define CONFIG_SYS_LOAD_ADDR		0x00280000
 
-#define CONFIG_SPL_MAX_SIZE             0x60000
+#define CONFIG_SPL_MAX_SIZE             0x40000
 #define CONFIG_SPL_BSS_START_ADDR       0x400000
 #define CONFIG_SPL_BSS_MAX_SIZE         0x20000
 #define CONFIG_SPL_STACK                0x00188000
diff --git a/include/configs/rk3399_common.h b/include/configs/rk3399_common.h
index 126c347..7331c6d 100644
--- a/include/configs/rk3399_common.h
+++ b/include/configs/rk3399_common.h
@@ -21,7 +21,7 @@
 
 #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_TPL_BOOTROM_SUPPORT)
 #define CONFIG_SPL_STACK		0x00400000
-#define CONFIG_SPL_MAX_SIZE             0x100000
+#define CONFIG_SPL_MAX_SIZE             0x40000
 #define CONFIG_SPL_BSS_START_ADDR	0x00400000
 #define CONFIG_SPL_BSS_MAX_SIZE         0x2000
 #else