diff --git a/plat/mediatek/mt8173/aarch64/plat_helpers.S b/plat/mediatek/mt8173/aarch64/plat_helpers.S
index d589499..983ebe3 100644
--- a/plat/mediatek/mt8173/aarch64/plat_helpers.S
+++ b/plat/mediatek/mt8173/aarch64/plat_helpers.S
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -13,6 +13,7 @@
 	.globl  plat_my_core_pos
 	.globl	plat_crash_console_init
 	.globl	plat_crash_console_putc
+	.globl	plat_crash_console_flush
 
 	/* -----------------------------------------------------
 	 * void plat_secondary_cold_boot_setup (void);
@@ -75,3 +76,16 @@
 	mov_imm x1, MT8173_UART0_BASE
 	b	console_core_putc
 endfunc plat_crash_console_putc
+
+	/* ---------------------------------------------
+	 * int plat_crash_console_flush(int c)
+	 * Function to force a write of all buffered
+	 * data that hasn't been output.
+	 * Out : return -1 on error else return 0.
+	 * Clobber list : x0, x1
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_flush
+	mov_imm	x0, MT8173_UART0_BASE
+	b	console_core_flush
+endfunc plat_crash_console_flush