diff --git a/plat/rockchip/px30/include/platform_def.h b/plat/rockchip/px30/include/platform_def.h
index 9dccab8..2f4f672 100644
--- a/plat/rockchip/px30/include/platform_def.h
+++ b/plat/rockchip/px30/include/platform_def.h
@@ -69,9 +69,9 @@
 /*******************************************************************************
  * Platform memory map related constants
  ******************************************************************************/
-/* TF text, 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.
diff --git a/plat/rockchip/rk3328/include/platform_def.h b/plat/rockchip/rk3328/include/platform_def.h
index baac12d..e9eb3fa 100644
--- a/plat/rockchip/rk3328/include/platform_def.h
+++ b/plat/rockchip/rk3328/include/platform_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -66,9 +66,9 @@
 /*******************************************************************************
  * Platform memory map related constants
  ******************************************************************************/
-/* TF text, 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.
diff --git a/plat/rockchip/rk3368/include/platform_def.h b/plat/rockchip/rk3368/include/platform_def.h
index 9334a83..2abd56b 100644
--- a/plat/rockchip/rk3368/include/platform_def.h
+++ b/plat/rockchip/rk3368/include/platform_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -67,9 +67,9 @@
 /*******************************************************************************
  * Platform memory map related constants
  ******************************************************************************/
-/* TF text, 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.