diff --git a/plat/marvell/armada/a3k/common/a3700_common.mk b/plat/marvell/armada/a3k/common/a3700_common.mk
index e2022fa..712b162 100644
--- a/plat/marvell/armada/a3k/common/a3700_common.mk
+++ b/plat/marvell/armada/a3k/common/a3700_common.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2018 Marvell International Ltd.
+# Copyright (C) 2018-2020 Marvell International Ltd.
 #
 # SPDX-License-Identifier:	BSD-3-Clause
 # https://spdx.org/licenses
@@ -64,6 +64,10 @@
 				$(PLAT_COMMON_BASE)/a3700_sip_svc.c	\
 				$(MARVELL_DRV)
 
+ifeq ($(CM3_SYSTEM_RESET),1)
+BL31_SOURCES		+=	$(PLAT_COMMON_BASE)/cm3_system_reset.c
+endif
+
 ifdef WTP
 
 DOIMAGEPATH	:= $(WTP)
diff --git a/plat/marvell/armada/a3k/common/cm3_system_reset.c b/plat/marvell/armada/a3k/common/cm3_system_reset.c
new file mode 100644
index 0000000..548ff51
--- /dev/null
+++ b/plat/marvell/armada/a3k/common/cm3_system_reset.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2020 Marek Behun, CZ.NIC
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <stdbool.h>
+
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <lib/mmio.h>
+
+#include <mvebu_def.h>
+
+/* Cortex-M3 Secure Processor Mailbox Registers */
+#define MVEBU_RWTM_PARAM0_REG			(MVEBU_RWTM_REG_BASE)
+#define MVEBU_RWTM_CMD_REG			(MVEBU_RWTM_REG_BASE + 0x40)
+#define MVEBU_RWTM_HOST_INT_RESET_REG		(MVEBU_RWTM_REG_BASE + 0xC8)
+#define MVEBU_RWTM_HOST_INT_MASK_REG		(MVEBU_RWTM_REG_BASE + 0xCC)
+#define MVEBU_RWTM_HOST_INT_SP_COMPLETE		BIT(0)
+
+#define MVEBU_RWTM_REBOOT_CMD		0x0009
+#define MVEBU_RWTM_REBOOT_MAGIC		0xDEADBEEF
+
+static inline bool rwtm_completed(void)
+{
+	return (mmio_read_32(MVEBU_RWTM_HOST_INT_RESET_REG) &
+		MVEBU_RWTM_HOST_INT_SP_COMPLETE) != 0;
+}
+
+static bool rwtm_wait(int ms)
+{
+	while (ms && !rwtm_completed()) {
+		mdelay(1);
+		--ms;
+	}
+
+	return rwtm_completed();
+}
+
+void cm3_system_reset(void)
+{
+	int tries = 5;
+
+	for (; tries > 0; --tries) {
+		mmio_clrbits_32(MVEBU_RWTM_HOST_INT_RESET_REG,
+				MVEBU_RWTM_HOST_INT_SP_COMPLETE);
+
+		mmio_write_32(MVEBU_RWTM_PARAM0_REG, MVEBU_RWTM_REBOOT_MAGIC);
+		mmio_write_32(MVEBU_RWTM_CMD_REG, MVEBU_RWTM_REBOOT_CMD);
+
+		if (rwtm_wait(10)) {
+			break;
+		}
+
+		mdelay(100);
+	}
+
+	/* If we reach here, the command is not implemented. */
+	ERROR("System reset command not implemented in WTMI firmware!\n");
+}
diff --git a/plat/marvell/armada/a3k/common/include/a3700_plat_def.h b/plat/marvell/armada/a3k/common/include/a3700_plat_def.h
index c7f40ad..d23f5be 100644
--- a/plat/marvell/armada/a3k/common/include/a3700_plat_def.h
+++ b/plat/marvell/armada/a3k/common/include/a3700_plat_def.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 Marvell International Ltd.
+ * Copyright (C) 2018-2020 Marvell International Ltd.
  *
  * SPDX-License-Identifier:	BSD-3-Clause
  * https://spdx.org/licenses
@@ -119,4 +119,10 @@
  */
 #define MVEBU_COMPHY_REG_BASE			(MVEBU_REGS_BASE + 0x18300)
 
+/*****************************************************************************
+ * Cortex-M3 Secure Processor Mailbox constants
+ *****************************************************************************
+ */
+#define MVEBU_RWTM_REG_BASE			(MVEBU_REGS_BASE + 0xB0000)
+
 #endif /* A3700_PLAT_DEF_H */
diff --git a/plat/marvell/armada/a3k/common/include/a3700_pm.h b/plat/marvell/armada/a3k/common/include/a3700_pm.h
index cc6cf43..44dbb9f 100644
--- a/plat/marvell/armada/a3k/common/include/a3700_pm.h
+++ b/plat/marvell/armada/a3k/common/include/a3700_pm.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016 Marvell International Ltd.
+ * Copyright (C) 2016-2020 Marvell International Ltd.
  *
  * SPDX-License-Identifier:	BSD-3-Clause
  * https://spdx.org/licenses
@@ -48,4 +48,6 @@
 
 struct pm_wake_up_src_config *mv_wake_up_src_config_get(void);
 
+void cm3_system_reset(void);
+
 #endif /* A3700_PM_H */
diff --git a/plat/marvell/armada/a3k/common/plat_pm.c b/plat/marvell/armada/a3k/common/plat_pm.c
index f8ce6fe..2bae37e 100644
--- a/plat/marvell/armada/a3k/common/plat_pm.c
+++ b/plat/marvell/armada/a3k/common/plat_pm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 Marvell International Ltd.
+ * Copyright (C) 2018-2020 Marvell International Ltd.
  *
  * SPDX-License-Identifier:	BSD-3-Clause
  * https://spdx.org/licenses
@@ -763,6 +763,11 @@
 	panic();
 }
 
+#pragma weak cm3_system_reset
+void cm3_system_reset(void)
+{
+}
+
 /*****************************************************************************
  * A3700 handlers to reset the system
  *****************************************************************************
@@ -780,6 +785,9 @@
 			   2 * sizeof(uint64_t));
 #endif
 
+	/* Use Cortex-M3 secure coprocessor for system reset */
+	cm3_system_reset();
+
 	/* Trigger the warm reset */
 	mmio_write_32(MVEBU_WARM_RESET_REG, MVEBU_WARM_RESET_MAGIC);