diff --git a/plat/mediatek/helpers/armv8_2/arch_helpers.S b/plat/mediatek/helpers/armv8_2/arch_helpers.S
new file mode 100644
index 0000000..02d8d53
--- /dev/null
+++ b/plat/mediatek/helpers/armv8_2/arch_helpers.S
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2022, Mediatek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <assert_macros.S>
+#include <cpu_macros.S>
+#if CONFIG_MTK_MCUSYS
+#include <mcucfg.h>
+#endif
+#include <platform_def.h>
+	/*
+	 * Declare as weak function so that can be
+	 * overwritten by platform helpers
+	 */
+	.weak platform_mem_init
+	.weak plat_core_pos_by_mpidr
+	.weak plat_my_core_pos
+	.weak plat_mediatek_calc_core_pos
+	.global plat_mpidr_by_core_pos
+	.global plat_reset_handler
+
+	/* -----------------------------------------------------
+	 * unsigned long plat_mpidr_by_core_pos(uint32_t cpuid)
+	 * This function calcuate mpidr by cpu pos if cpu
+	 * topology is linear.
+	 *
+	 * Clobbers: x0-x1
+	 * -----------------------------------------------------
+	 */
+func plat_mpidr_by_core_pos
+	lsl x0, x0, #MPIDR_AFF1_SHIFT
+	mrs x1, mpidr_el1
+	and x1, x1, #MPIDR_MT_MASK
+	orr x0, x0, x1
+	ret
+endfunc plat_mpidr_by_core_pos
+
+	/* -----------------------------------------------------
+	 *  unsigned int plat_my_core_pos(void)
+	 *  This function uses the plat_arm_calc_core_pos()
+	 *  definition to get the index of the calling CPU.
+	 * -----------------------------------------------------
+	 */
+func plat_my_core_pos
+	mrs	x0, mpidr_el1
+	b plat_mediatek_calc_core_pos
+endfunc plat_my_core_pos
+
+	/* -----------------------------------------------------
+	 * int plat_mediatek_calc_core_pos(u_register_t mpidr);
+	 *
+	 * In ARMv8.2, AFF2 is cluster id, AFF1 is core id and
+	 * AFF0 is thread id. There is only one cluster in ARMv8.2
+	 * and one thread in current implementation.
+	 *
+	 * With this function: CorePos = CoreID (AFF1)
+	 * we do it with x0 = (x0 >> 8) & 0xff
+	 * -----------------------------------------------------
+	 */
+func plat_mediatek_calc_core_pos
+	b plat_core_pos_by_mpidr
+endfunc plat_mediatek_calc_core_pos
+
+	/* ------------------------------------------------------
+	 * int32_t plat_core_pos_by_mpidr(u_register_t mpidr)
+	 *
+	 * This function implements a part of the critical
+	 * interface between the psci generic layer and the
+	 * platform that allows the former to query the platform
+	 * to convert an MPIDR to a unique linear index.
+	 *
+	 * Clobbers: x0-x1
+	 * ------------------------------------------------------
+	 */
+func plat_core_pos_by_mpidr
+	mov	x1, #MPIDR_AFFLVL_MASK
+	and	x0, x1, x0, lsr #MPIDR_AFF1_SHIFT
+	ret
+endfunc plat_core_pos_by_mpidr
+
+	/* --------------------------------------------------------
+	 * void platform_mem_init (void);
+	 *
+	 * Any memory init, relocation to be done before the
+	 * platform boots. Called very early in the boot process.
+	 * --------------------------------------------------------
+	 */
+func platform_mem_init
+	ret
+endfunc platform_mem_init
+
+func plat_reset_handler
+#if CONFIG_MTK_MCUSYS
+	mov	x10, x30
+	bl	plat_my_core_pos
+	mov	x30, x10
+	mov     w1, #0x1
+	lsl     w1, w1, w0
+	ldr	x0, =CPC_MCUSYS_CPU_ON_SW_HINT_SET
+	str     w1, [x0]
+	dsb     sy
+#endif
+
+#if CONFIG_MTK_ECC
+	mov x10, x30
+	/* enable sequence of ecc for cpus */
+	bl disable_core_ecc
+	bl ft_ecc_clear_per_core
+	bl enable_core_ecc
+	mov x30, x10
+#endif
+
+	ret
+endfunc plat_reset_handler
diff --git a/plat/mediatek/helpers/rules.mk b/plat/mediatek/helpers/rules.mk
new file mode 100644
index 0000000..ae8068e
--- /dev/null
+++ b/plat/mediatek/helpers/rules.mk
@@ -0,0 +1,12 @@
+#
+# Copyright (c) 2022, MediaTek Inc. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+LOCAL_DIR := $(call GET_LOCAL_DIR)
+
+MODULE := helpers
+LOCAL_SRCS-y += $(LOCAL_DIR)/$(ARCH_VERSION)/arch_helpers.S
+
+$(eval $(call MAKE_MODULE,$(MODULE),$(LOCAL_SRCS-y),$(MTK_BL)))
diff --git a/plat/mediatek/include/armv8_2/arch_def.h b/plat/mediatek/include/armv8_2/arch_def.h
new file mode 100644
index 0000000..61f818f
--- /dev/null
+++ b/plat/mediatek/include/armv8_2/arch_def.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2022, Mediatek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef ARCH_DEF_H
+#define ARCH_DEF_H
+
+/* Topology constants */
+#define PLAT_MAX_PWR_LVL		(2)
+#define PLAT_MAX_RET_STATE		(1)
+#define PLAT_MAX_OFF_STATE		(2)
+
+#define PLATFORM_SYSTEM_COUNT		(1)
+#define PLATFORM_CLUSTER_COUNT		(1)
+#define PLATFORM_CLUSTER0_CORE_COUNT	(8)
+#define PLATFORM_CORE_COUNT		(PLATFORM_CLUSTER0_CORE_COUNT)
+#define PLATFORM_MAX_CPUS_PER_CLUSTER	(8)
+#define PLATFORM_NUM_AFFS		(PLATFORM_SYSTEM_COUNT + \
+					 PLATFORM_CLUSTER_COUNT + \
+					 PLATFORM_CORE_COUNT)
+
+/*******************************************************************************
+ * Declarations and constants to access the mailboxes safely. Each mailbox is
+ * aligned on the biggest cache line size in the platform. This is known only
+ * to the platform as it might have a combination of integrated and external
+ * caches. Such alignment ensures that two maiboxes do not sit on the same cache
+ * line at any cache level. They could belong to different cpus/clusters &
+ * get written while being protected by different locks causing corruption of
+ * a valid mailbox address.
+ ******************************************************************************/
+/* Cachline size */
+#define CACHE_WRITEBACK_SHIFT		(6)
+#define CACHE_WRITEBACK_GRANULE		(1 << CACHE_WRITEBACK_SHIFT)
+
+#endif /* ARCH_DEF_H */
+
diff --git a/plat/mediatek/include/mt8188/platform_def.h b/plat/mediatek/include/mt8188/platform_def.h
index 0234837..3e82cef 100644
--- a/plat/mediatek/include/mt8188/platform_def.h
+++ b/plat/mediatek/include/mt8188/platform_def.h
@@ -7,6 +7,8 @@
 #ifndef PLATFORM_DEF_H
 #define PLATFORM_DEF_H
 
+#include <arch_def.h>
+
 #define PLAT_PRIMARY_CPU	(0x0)
 
 #define MT_GIC_BASE		(0x0C000000)
@@ -124,22 +126,7 @@
  * Generic platform constants
  ******************************************************************************/
 #define PLATFORM_STACK_SIZE		(0x800)
-
 #define FIRMWARE_WELCOME_STR		"Booting Trusted Firmware\n"
-
-#define PLAT_MAX_PWR_LVL		U(3)
-#define PLAT_MAX_RET_STATE		U(1)
-#define PLAT_MAX_OFF_STATE		U(9)
-
-#define PLATFORM_SYSTEM_COUNT		U(1)
-#define PLATFORM_MCUSYS_COUNT		U(1)
-#define PLATFORM_CLUSTER_COUNT		U(1)
-#define PLATFORM_CLUSTER0_CORE_COUNT	U(8)
-#define PLATFORM_CLUSTER1_CORE_COUNT	U(0)
-
-#define PLATFORM_CORE_COUNT		(PLATFORM_CLUSTER0_CORE_COUNT)
-#define PLATFORM_MAX_CPUS_PER_CLUSTER	U(8)
-
 #define SOC_CHIP_ID			U(0x8188)
 
 /*******************************************************************************
@@ -167,16 +154,4 @@
 #define MAX_XLAT_TABLES			(16)
 #define MAX_MMAP_REGIONS		(16)
 
-/*******************************************************************************
- * Declarations and constants to access the mailboxes safely. Each mailbox is
- * aligned on the biggest cache line size in the platform. This is known only
- * to the platform as it might have a combination of integrated and external
- * caches. Such alignment ensures that two maiboxes do not sit on the same cache
- * line at any cache level. They could belong to different cpus/clusters &
- * get written while being protected by different locks causing corruption of
- * a valid mailbox address.
- ******************************************************************************/
-#define CACHE_WRITEBACK_SHIFT		(6)
-#define CACHE_WRITEBACK_GRANULE		(1 << CACHE_WRITEBACK_SHIFT)
-
 #endif /* PLATFORM_DEF_H */
diff --git a/plat/mediatek/mt8188/aarch64/plat_helpers.S b/plat/mediatek/mt8188/aarch64/plat_helpers.S
deleted file mode 100644
index 7073ab1..0000000
--- a/plat/mediatek/mt8188/aarch64/plat_helpers.S
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (c) 2022, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <arch.h>
-#include <asm_macros.S>
-#include <platform_def.h>
-
-	.globl plat_is_my_cpu_primary
-	.globl plat_my_core_pos
-	.globl plat_mediatek_calc_core_pos
-
-func plat_is_my_cpu_primary
-	mrs	x0, mpidr_el1
-	and	x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
-	cmp	x0, #PLAT_PRIMARY_CPU
-	cset	x0, eq
-	ret
-endfunc plat_is_my_cpu_primary
-
-	/* -----------------------------------------------------
-	 *  unsigned int plat_my_core_pos(void)
-	 *  This function uses the plat_mediatek_calc_core_pos()
-	 *  definition to get the index of the calling CPU.
-	 * -----------------------------------------------------
-	 */
-func plat_my_core_pos
-	mrs	x0, mpidr_el1
-	b	plat_mediatek_calc_core_pos
-endfunc plat_my_core_pos
-
-	/* -----------------------------------------------------
-	 * unsigned int plat_mediatek_calc_core_pos(u_register_t mpidr);
-	 *
-	 * With this function: CorePos = CoreID (AFF1)
-	 * we do it with x0 = (x0 >> 8) & 0xff
-	 * -----------------------------------------------------
-	 */
-func plat_mediatek_calc_core_pos
-	mov	x1, #MPIDR_AFFLVL_MASK
-	and	x0, x1, x0, lsr #MPIDR_AFF1_SHIFT
-	ret
-endfunc plat_mediatek_calc_core_pos
diff --git a/plat/mediatek/mt8188/plat_config.mk b/plat/mediatek/mt8188/plat_config.mk
index a69ea96..169f776 100644
--- a/plat/mediatek/mt8188/plat_config.mk
+++ b/plat/mediatek/mt8188/plat_config.mk
@@ -32,5 +32,6 @@
 ERRATA_A78_2376745 := 1
 ERRATA_A78_2395406 := 1
 
+CONFIG_ARCH_ARM_V8_2 := y
 MACH_MT8188 := 1
 $(eval $(call add_define,MACH_MT8188))
diff --git a/plat/mediatek/mt8188/plat_topology.c b/plat/mediatek/mt8188/plat_topology.c
deleted file mode 100644
index 9fa2855..0000000
--- a/plat/mediatek/mt8188/plat_topology.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (c) 2022, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <arch.h>
-#include <arch_helpers.h>
-#include <lib/psci/psci.h>
-
-#include <plat_helpers.h>
-#include <platform_def.h>
-
-const unsigned char mtk_power_domain_tree_desc[] = {
-	/* Number of root nodes */
-	PLATFORM_SYSTEM_COUNT,
-	/* Number of children for the root node */
-	PLATFORM_MCUSYS_COUNT,
-	/* Number of children for the mcusys node */
-	PLATFORM_CLUSTER_COUNT,
-	/* Number of children for the first cluster node */
-	PLATFORM_CLUSTER0_CORE_COUNT,
-};
-
-const unsigned char *plat_get_power_domain_tree_desc(void)
-{
-	return mtk_power_domain_tree_desc;
-}
-
-/*******************************************************************************
- * This function implements a part of the critical interface between the psci
- * generic layer and the platform that allows the former to query the platform
- * to convert an MPIDR to a unique linear index. An error code (-1) is returned
- * in case the MPIDR is invalid.
- ******************************************************************************/
-int plat_core_pos_by_mpidr(u_register_t mpidr)
-{
-	unsigned int cluster_id, cpu_id;
-
-	if ((read_mpidr() & MPIDR_MT_MASK) != 0) {
-		/* ARMv8.2 arch */
-		if ((mpidr & (MPIDR_AFFLVL_MASK << MPIDR_AFF0_SHIFT)) != 0) {
-			return -1;
-		}
-		return plat_mediatek_calc_core_pos(mpidr);
-	}
-
-	mpidr &= MPIDR_AFFINITY_MASK;
-
-	if ((mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)) != 0) {
-		return -1;
-	}
-
-	cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
-	cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
-
-	if (cluster_id >= PLATFORM_CLUSTER_COUNT) {
-		return -1;
-	}
-
-	/*
-	 * Validate cpu_id by checking whether it represents a CPU in
-	 * one of the two clusters present on the platform.
-	 */
-	if (cpu_id >= PLATFORM_MAX_CPUS_PER_CLUSTER) {
-		return -1;
-	}
-
-	return (cpu_id + (cluster_id * 8));
-}
diff --git a/plat/mediatek/mt8188/platform.mk b/plat/mediatek/mt8188/platform.mk
index 4233d92..aaf9775 100644
--- a/plat/mediatek/mt8188/platform.mk
+++ b/plat/mediatek/mt8188/platform.mk
@@ -15,6 +15,7 @@
 PLAT_INCLUDES := -I${MTK_PLAT}/common \
 		 -I${MTK_PLAT}/include \
 		 -I${MTK_PLAT}/include/${MTK_SOC} \
+		 -I${MTK_PLAT}/include/${ARCH_VERSION} \
 		 -I${MTK_PLAT} \
 		 -I${MTK_PLAT_SOC}/include \
 		 -Idrivers/arm/gic \
@@ -36,6 +37,8 @@
 MODULES-y += $(MTK_PLAT)/drivers/pmic_wrap
 MODULES-y += $(MTK_PLAT)/drivers/rtc
 MODULES-y += $(MTK_PLAT)/drivers/timer
+MODULES-y += $(MTK_PLAT)/helpers
+MODULES-y += $(MTK_PLAT)/topology
 
 PLAT_BL_COMMON_SOURCES := common/desc_image_load.c \
 			  drivers/ti/uart/aarch64/16550_console.S \
@@ -52,9 +55,7 @@
 		plat/common/aarch64/crash_console_helpers.S \
 		${MTK_PLAT}/common/mtk_plat_common.c \
 		${MTK_PLAT}/common/params_setup.c \
-		${MTK_PLAT_SOC}/aarch64/plat_helpers.S \
-		$(MTK_PLAT)/$(MTK_SOC)/plat_mmap.c \
-		$(MTK_PLAT)/$(MTK_SOC)/plat_topology.c
+		$(MTK_PLAT)/$(MTK_SOC)/plat_mmap.c
 
 include plat/mediatek/build_helpers/mtk_build_helpers_epilogue.mk
 
diff --git a/plat/mediatek/topology/armv8_2/topology.c b/plat/mediatek/topology/armv8_2/topology.c
new file mode 100644
index 0000000..1627bbd
--- /dev/null
+++ b/plat/mediatek/topology/armv8_2/topology.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2022, Mediatek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <lib/psci/psci.h>
+#include <platform_def.h>
+
+#pragma weak plat_get_power_domain_tree_desc
+
+static const unsigned char mtk_power_domain_tree_desc[] = {
+	/* Number of root nodes */
+	PLATFORM_SYSTEM_COUNT,
+	/* Number of children for the root node */
+	PLATFORM_CLUSTER_COUNT,
+	/* Number of children for the first cluster node */
+	PLATFORM_CLUSTER0_CORE_COUNT,
+};
+
+/*******************************************************************************
+ * This function returns the default topology tree information.
+ ******************************************************************************/
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+	return mtk_power_domain_tree_desc;
+}
diff --git a/plat/mediatek/topology/rules.mk b/plat/mediatek/topology/rules.mk
new file mode 100644
index 0000000..29f15bb
--- /dev/null
+++ b/plat/mediatek/topology/rules.mk
@@ -0,0 +1,12 @@
+#
+# Copyright (c) 2022, MediaTek Inc. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+LOCAL_DIR := $(call GET_LOCAL_DIR)
+
+MODULE := topology
+LOCAL_SRCS-y := $(LOCAL_DIR)/$(ARCH_VERSION)/topology.c
+
+$(eval $(call MAKE_MODULE,$(MODULE),$(LOCAL_SRCS-y),$(MTK_BL)))