diff --git a/plat/rockchip/px30/px30_def.h b/plat/rockchip/px30/px30_def.h
new file mode 100644
index 0000000..021165a
--- /dev/null
+++ b/plat/rockchip/px30/px30_def.h
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __PX30_DEF_H__
+#define __PX30_DEF_H__
+
+#define MAJOR_VERSION		(1)
+#define MINOR_VERSION		(0)
+
+#define SIZE_K(n)		((n) * 1024)
+
+#define WITH_16BITS_WMSK(bits)	(0xffff0000 | (bits))
+
+/* Special value used to verify platform parameters from BL2 to BL3-1 */
+#define RK_BL31_PLAT_PARAM_VAL	0x0f1e2d3c4b5a6978ULL
+
+#define PMU_BASE		0xff000000
+#define PMU_SIZE		SIZE_K(64)
+
+#define PMUGRF_BASE		0xff010000
+#define PMUGRF_SIZE		SIZE_K(64)
+
+#define PMUSRAM_BASE		0xff020000
+#define PMUSRAM_SIZE		SIZE_K(64)
+#define PMUSRAM_RSIZE		SIZE_K(8)
+
+#define UART0_BASE		0xff030000
+#define UART0_SIZE		SIZE_K(64)
+
+#define GPIO0_BASE		0xff040000
+#define GPIO0_SIZE		SIZE_K(64)
+
+#define PMUSGRF_BASE		0xff050000
+#define PMUSGRF_SIZE		SIZE_K(64)
+
+#define INTSRAM_BASE		0xff0e0000
+#define INTSRAM_SIZE		SIZE_K(64)
+
+#define SGRF_BASE		0xff11c000
+#define SGRF_SIZE		SIZE_K(16)
+
+#define GIC400_BASE		0xff130000
+#define GIC400_SIZE		SIZE_K(64)
+
+#define GRF_BASE		0xff140000
+#define GRF_SIZE		SIZE_K(64)
+
+#define UART1_BASE		0xff158000
+#define UART1_SIZE		SIZE_K(64)
+
+#define UART2_BASE		0xff160000
+#define UART2_SIZE		SIZE_K(64)
+
+#define I2C0_BASE		0xff180000
+#define I2C0_SIZE		SIZE_K(64)
+
+#define PWM0_BASE		0xff200000
+#define PWM0_SIZE		SIZE_K(32)
+
+#define PWM1_BASE		0xff208000
+#define PWM1_SIZE		SIZE_K(32)
+
+#define NTIME_BASE		0xff210000
+#define NTIME_SIZE		SIZE_K(64)
+
+#define STIME_BASE		0xff220000
+#define STIME_SIZE		SIZE_K(64)
+
+#define DCF_BASE		0xff230000
+#define DCF_SIZE		SIZE_K(64)
+
+#define GPIO1_BASE		0xff250000
+#define GPIO1_SIZE		SIZE_K(64)
+
+#define GPIO2_BASE		0xff260000
+#define GPIO2_SIZE		SIZE_K(64)
+
+#define GPIO3_BASE		0xff270000
+#define GPIO3_SIZE		SIZE_K(64)
+
+#define DDR_PHY_BASE		0xff2a0000
+#define DDR_PHY_SIZE		SIZE_K(64)
+
+#define CRU_BASE		0xff2b0000
+#define CRU_SIZE		SIZE_K(32)
+
+#define CRU_BOOST_BASE		0xff2b8000
+#define CRU_BOOST_SIZE		SIZE_K(16)
+
+#define PMUCRU_BASE		0xff2bc000
+#define PMUCRU_SIZE		SIZE_K(16)
+
+#define VOP_BASE		0xff460000
+#define VOP_SIZE		SIZE_K(16)
+
+#define SERVER_MSCH_BASE	0xff530000
+#define SERVER_MSCH_SIZE	SIZE_K(64)
+
+#define FIREWALL_DDR_BASE	0xff534000
+#define FIREWALL_DDR_SIZE	SIZE_K(16)
+
+#define DDR_UPCTL_BASE		0xff600000
+#define DDR_UPCTL_SIZE		SIZE_K(64)
+
+#define DDR_MNTR_BASE		0xff610000
+#define DDR_MNTR_SIZE		SIZE_K(64)
+
+#define DDR_STDBY_BASE		0xff620000
+#define DDR_STDBY_SIZE		SIZE_K(64)
+
+#define DDRGRF_BASE		0xff630000
+#define DDRGRF_SIZE		SIZE_K(32)
+
+/**************************************************************************
+ * UART related constants
+ **************************************************************************/
+#define PX30_UART_BASE		UART2_BASE
+#define PX30_BAUDRATE		1500000
+#define PX30_UART_CLOCK		24000000
+
+/******************************************************************************
+ * System counter frequency related constants
+ ******************************************************************************/
+#define SYS_COUNTER_FREQ_IN_TICKS	24000000
+#define SYS_COUNTER_FREQ_IN_MHZ		24
+
+/******************************************************************************
+ * GIC-400 & interrupt handling related constants
+ ******************************************************************************/
+
+/* Base rk_platform compatible GIC memory map */
+#define PX30_GICD_BASE		(GIC400_BASE + 0x1000)
+#define PX30_GICC_BASE		(GIC400_BASE + 0x2000)
+#define PX30_GICR_BASE		0	/* no GICR in GIC-400 */
+
+/******************************************************************************
+ * sgi, ppi
+ ******************************************************************************/
+#define RK_IRQ_SEC_PHY_TIMER	29
+
+#define RK_IRQ_SEC_SGI_0	8
+#define RK_IRQ_SEC_SGI_1	9
+#define RK_IRQ_SEC_SGI_2	10
+#define RK_IRQ_SEC_SGI_3	11
+#define RK_IRQ_SEC_SGI_4	12
+#define RK_IRQ_SEC_SGI_5	13
+#define RK_IRQ_SEC_SGI_6	14
+#define RK_IRQ_SEC_SGI_7	15
+
+/*
+ * Define a list of Group 0 interrupts.
+ */
+#define PLAT_RK_GICV2_G0_IRQS						\
+	INTR_PROP_DESC(RK_IRQ_SEC_PHY_TIMER, GIC_HIGHEST_SEC_PRIORITY,	\
+		       GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),		\
+	INTR_PROP_DESC(RK_IRQ_SEC_SGI_6, GIC_HIGHEST_SEC_PRIORITY,	\
+		       GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL)
+
+#define SHARE_MEM_BASE		0x100000/* [1MB, 1MB+60K]*/
+#define SHARE_MEM_PAGE_NUM	15
+#define SHARE_MEM_SIZE		SIZE_K(SHARE_MEM_PAGE_NUM * 4)
+
+#define DDR_PARAM_BASE		0x02000000
+#define DDR_PARAM_SIZE		SIZE_K(4)
+
+#endif /* __PLAT_DEF_H__ */