diff --git a/plat/rockchip/rk3399/include/platform_def.h b/plat/rockchip/rk3399/include/platform_def.h
index 6fb9d98..b83b891 100644
--- a/plat/rockchip/rk3399/include/platform_def.h
+++ b/plat/rockchip/rk3399/include/platform_def.h
@@ -91,9 +91,9 @@
 /*******************************************************************************
  * Platform memory map related constants
  ******************************************************************************/
-/* TF txet, ro, rw, Size: 512KB */
+/* TF text, ro, rw, Size: 1MB */
 #define TZRAM_BASE		(0x0)
-#define TZRAM_SIZE		(0x80000)
+#define TZRAM_SIZE		(0x100000)
 
 /*******************************************************************************
  * BL31 specific defines.
@@ -101,7 +101,7 @@
 /*
  * Put BL3-1 at the top of the Trusted RAM
  */
-#define BL31_BASE		(TZRAM_BASE + 0x10000)
+#define BL31_BASE		(TZRAM_BASE + 0x1000)
 #define BL31_LIMIT	(TZRAM_BASE + TZRAM_SIZE)
 
 /*******************************************************************************