diff --git a/plat/allwinner/common/include/plat_macros.S b/plat/allwinner/common/include/plat_macros.S
new file mode 100644
index 0000000..6ee4597
--- /dev/null
+++ b/plat/allwinner/common/include/plat_macros.S
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __PLAT_MACROS_S__
+#define __PLAT_MACROS_S__
+
+#include <arm_macros.S>
+#include <sunxi_mmap.h>
+
+	/* ---------------------------------------------
+	 * The below required platform porting macro
+	 * prints out relevant GIC and CCI registers
+	 * whenever an unhandled exception is taken in
+	 * BL31.
+	 * Clobbers: x0 - x10, x16, x17, sp
+	 * ---------------------------------------------
+	 */
+	.macro plat_crash_print_regs
+	mov_imm	x17, SUNXI_GICC_BASE
+	mov_imm	x16, SUNXI_GICD_BASE
+	arm_print_gic_regs
+	.endm
+
+#endif /* __PLAT_MACROS_S__ */
diff --git a/plat/allwinner/common/include/platform_def.h b/plat/allwinner/common/include/platform_def.h
new file mode 100644
index 0000000..ca7db2f
--- /dev/null
+++ b/plat/allwinner/common/include/platform_def.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __PLATFORM_DEF_H__
+#define __PLATFORM_DEF_H__
+
+#include <common_def.h>
+#include <sunxi_mmap.h>
+#include <tbbr/tbbr_img_def.h>
+
+#define BL31_BASE			SUNXI_SRAM_A2_BASE
+#define BL31_LIMIT			(SUNXI_SRAM_A2_BASE + SUNXI_SRAM_A2_SIZE)
+
+/* The traditional U-Boot load address is 160MB into DRAM, so at 0x4a000000 */
+#define PLAT_SUNXI_NS_IMAGE_OFFSET	(SUNXI_DRAM_BASE + (160U << 20))
+
+#define CACHE_WRITEBACK_SHIFT		6
+#define CACHE_WRITEBACK_GRANULE		(1 << CACHE_WRITEBACK_SHIFT)
+
+#define MAX_MMAP_REGIONS		(4 + PLATFORM_MMAP_REGIONS)
+#define MAX_XLAT_TABLES			2
+
+#define PLAT_MAX_PWR_LVL_STATES		2
+#define PLAT_MAX_RET_STATE		1
+#define PLAT_MAX_OFF_STATE		2
+
+#define PLAT_MAX_PWR_LVL		2
+#define PLAT_NUM_PWR_DOMAINS		(1 + \
+					 PLATFORM_CLUSTER_COUNT + \
+					 PLATFORM_CORE_COUNT)
+
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+
+#define PLATFORM_CLUSTER_COUNT		1
+#define PLATFORM_CORE_COUNT		(PLATFORM_CLUSTER_COUNT * \
+					 PLATFORM_MAX_CPUS_PER_CLUSTER)
+#define PLATFORM_MAX_CPUS_PER_CLUSTER	4
+#define PLATFORM_MMAP_REGIONS		4
+#define PLATFORM_STACK_SIZE		(0x1000 / PLATFORM_CORE_COUNT)
+
+#endif /* __PLATFORM_DEF_H__ */
diff --git a/plat/allwinner/common/include/sunxi_def.h b/plat/allwinner/common/include/sunxi_def.h
new file mode 100644
index 0000000..e68fbe4
--- /dev/null
+++ b/plat/allwinner/common/include/sunxi_def.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __SUNXI_DEF_H__
+#define __SUNXI_DEF_H__
+
+/* Clock configuration */
+#define SUNXI_OSC24M_CLK_IN_HZ		24000000
+
+/* UART configuration */
+#define SUNXI_UART0_BAUDRATE		115200
+#define SUNXI_UART0_CLK_IN_HZ		SUNXI_OSC24M_CLK_IN_HZ
+
+#endif /* __SUNXI_DEF_H__ */