diff --git a/plat/rockchip/rk3399/drivers/soc/soc.c b/plat/rockchip/rk3399/drivers/soc/soc.c
new file mode 100644
index 0000000..f8d66c2
--- /dev/null
+++ b/plat/rockchip/rk3399/drivers/soc/soc.c
@@ -0,0 +1,348 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <arch_helpers.h>
+#include <debug.h>
+#include <delay_timer.h>
+#include <mmio.h>
+#include <platform_def.h>
+#include <plat_private.h>
+#include <rk3399_def.h>
+#include <soc.h>
+
+/* Table of regions to map using the MMU.  */
+const mmap_region_t plat_rk_mmap[] = {
+	MAP_REGION_FLAT(GIC500_BASE, GIC500_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(CCI500_BASE, CCI500_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(STIME_BASE, STIME_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(CRUS_BASE, CRUS_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(SGRF_BASE, SGRF_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(PMU_BASE, PMU_SIZE,
+			MT_DEVICE | MT_RW | MT_NS),
+	MAP_REGION_FLAT(PMUSRAM_BASE, PMUSRAM_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	MAP_REGION_FLAT(RK3399_UART2_BASE, RK3399_UART2_SIZE,
+			MT_DEVICE | MT_RW | MT_SECURE),
+	{ 0 }
+};
+
+/* The RockChip power domain tree descriptor */
+const unsigned char rockchip_power_domain_tree_desc[] = {
+	/* No of root nodes */
+	PLATFORM_SYSTEM_COUNT,
+	/* No of children for the root node */
+	PLATFORM_CLUSTER_COUNT,
+	/* No of children for the first cluster node */
+	PLATFORM_CLUSTER0_CORE_COUNT,
+	/* No of children for the second cluster node */
+	PLATFORM_CLUSTER1_CORE_COUNT
+};
+
+void secure_timer_init(void)
+{
+	mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_END_COUNT0, 0xffffffff);
+	mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_END_COUNT1, 0xffffffff);
+
+	mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_INIT_COUNT0, 0x0);
+	mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_INIT_COUNT0, 0x0);
+
+	/* auto reload & enable the timer */
+	mmio_write_32(STIMER1_CHN_BASE(5) + TIMER_CONTROL_REG,
+		      TIMER_EN | TIMER_FMODE);
+}
+
+void sgrf_init(void)
+{
+	/* security config for master */
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON3_7(5),
+		      SGRF_SOC_CON_WMSK | SGRF_SOC_ALLMST_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON3_7(6),
+		      SGRF_SOC_CON_WMSK | SGRF_SOC_ALLMST_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SOC_CON3_7(7),
+		      SGRF_SOC_CON_WMSK | SGRF_SOC_ALLMST_NS);
+
+	/* security config for slave */
+	mmio_write_32(SGRF_BASE + SGRF_PMU_SLV_CON0_1(0),
+		      SGRF_PMU_SLV_S_CFGED |
+		      SGRF_PMU_SLV_CRYPTO1_NS);
+	mmio_write_32(SGRF_BASE + SGRF_PMU_SLV_CON0_1(1),
+		      SGRF_PMU_SLV_CON1_CFG);
+	mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(0),
+		      SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(1),
+		      SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(2),
+		      SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(3),
+		      SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+	mmio_write_32(SGRF_BASE + SGRF_SLV_SECURE_CON0_4(4),
+		      SGRF_SLV_S_WMSK | SGRF_SLV_S_ALL_NS);
+
+	/* security config for ddr memery */
+	mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON0_16(16),
+		      SGRF_DDR_RGN_BYPS);
+}
+
+static void dma_secure_cfg(uint32_t secure)
+{
+	if (secure) {
+		/* rgn0 secure for dmac0 and dmac1 */
+		mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON20_34(22),
+			      SGRF_L_MST_S_DDR_RGN(0) | /* dmac0 */
+			      SGRF_H_MST_S_DDR_RGN(0) /* dmac1 */
+			      );
+
+		/* set dmac0 boot, under secure state */
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(8),
+			      SGRF_DMAC_CFG_S);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(9),
+			      SGRF_DMAC_CFG_S);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(10),
+			      SGRF_DMAC_CFG_S);
+
+		/* dmac0 soft reset */
+		mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(10),
+			      CRU_DMAC0_RST);
+		udelay(5);
+		mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(10),
+			      CRU_DMAC0_RST_RLS);
+
+		/* set dmac1 boot, under secure state */
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(11),
+			      SGRF_DMAC_CFG_S);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(12),
+			      SGRF_DMAC_CFG_S);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(13),
+			      SGRF_DMAC_CFG_S);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(14),
+			      SGRF_DMAC_CFG_S);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(15),
+			      SGRF_DMAC_CFG_S);
+
+		/* dmac1 soft reset */
+		mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(10),
+			      CRU_DMAC1_RST);
+		udelay(5);
+		mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(10),
+			      CRU_DMAC1_RST_RLS);
+	} else {
+		/* rgn non-secure for dmac0 and dmac1 */
+		mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON20_34(22),
+			      DMAC1_RGN_NS | DMAC0_RGN_NS);
+
+		/* set dmac0 boot, under non-secure state */
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(8),
+			      DMAC0_BOOT_CFG_NS);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(9),
+			      DMAC0_BOOT_PERIPH_NS);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(10),
+			      DMAC0_BOOT_ADDR_NS);
+
+		/* dmac0 soft reset */
+		mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(10),
+			      CRU_DMAC0_RST);
+		udelay(5);
+		mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(10),
+			      CRU_DMAC0_RST_RLS);
+
+		/* set dmac1 boot, under non-secure state */
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(11),
+			      DMAC1_BOOT_CFG_NS);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(12),
+			      DMAC1_BOOT_PERIPH_L_NS);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(13),
+			      DMAC1_BOOT_ADDR_NS);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(14),
+			      DMAC1_BOOT_PERIPH_H_NS);
+		mmio_write_32(SGRF_BASE + SGRF_SOC_CON8_15(15),
+			      DMAC1_BOOT_IRQ_NS);
+
+		/* dmac1 soft reset */
+		mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(10),
+			      CRU_DMAC1_RST);
+		udelay(5);
+		mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(10),
+			      CRU_DMAC1_RST_RLS);
+	}
+}
+
+/* pll suspend */
+struct deepsleep_data_s slp_data;
+
+static void pll_suspend_prepare(uint32_t pll_id)
+{
+	int i;
+
+	if (pll_id == PPLL_ID)
+		for (i = 0; i < PLL_CON_COUNT; i++)
+			slp_data.plls_con[pll_id][i] =
+				mmio_read_32(PMUCRU_BASE + PMUCRU_PPLL_CON(i));
+	else
+		for (i = 0; i < PLL_CON_COUNT; i++)
+			slp_data.plls_con[pll_id][i] =
+				mmio_read_32(CRU_BASE + CRU_PLL_CON(pll_id, i));
+}
+
+static void set_pll_slow_mode(uint32_t pll_id)
+{
+	if (pll_id == PPLL_ID)
+		mmio_write_32(PMUCRU_BASE + PMUCRU_PPLL_CON(3), PLL_SLOW_MODE);
+	else
+		mmio_write_32((CRU_BASE +
+			      CRU_PLL_CON(pll_id, 3)), PLL_SLOW_MODE);
+}
+
+static void set_pll_normal_mode(uint32_t pll_id)
+{
+	if (pll_id == PPLL_ID)
+		mmio_write_32(PMUCRU_BASE + PMUCRU_PPLL_CON(3), PLL_NOMAL_MODE);
+	else
+		mmio_write_32(CRU_BASE +
+			      CRU_PLL_CON(pll_id, 3), PLL_NOMAL_MODE);
+}
+
+static void set_pll_bypass(uint32_t pll_id)
+{
+	if (pll_id == PPLL_ID)
+		mmio_write_32(PMUCRU_BASE +
+			      PMUCRU_PPLL_CON(3), PLL_BYPASS_MODE);
+	else
+		mmio_write_32(CRU_BASE +
+			      CRU_PLL_CON(pll_id, 3), PLL_BYPASS_MODE);
+}
+
+static void _pll_suspend(uint32_t pll_id)
+{
+	set_pll_slow_mode(pll_id);
+	set_pll_bypass(pll_id);
+}
+
+void plls_suspend(void)
+{
+	uint32_t i, pll_id;
+
+	for (pll_id = ALPLL_ID; pll_id < END_PLL_ID; pll_id++)
+		pll_suspend_prepare(pll_id);
+
+	for (i = 0; i < CRU_CLKSEL_COUNT; i++)
+		slp_data.cru_clksel_con[i] =
+			mmio_read_32(CRU_BASE +
+				     CRU_CLKSEL_OFFSET + i * REG_SIZE);
+
+	for (i = 0; i < PMUCRU_CLKSEL_CONUT; i++)
+		slp_data.pmucru_clksel_con[i] =
+			mmio_read_32(PMUCRU_BASE +
+				     PMUCRU_CLKSEL_OFFSET + i * REG_SIZE);
+
+	_pll_suspend(CPLL_ID);
+	_pll_suspend(NPLL_ID);
+	_pll_suspend(VPLL_ID);
+	_pll_suspend(PPLL_ID);
+	_pll_suspend(GPLL_ID);
+	_pll_suspend(ABPLL_ID);
+	_pll_suspend(ALPLL_ID);
+}
+
+static void set_plls_nobypass(uint32_t pll_id)
+{
+	if (pll_id == PPLL_ID)
+		mmio_write_32(PMUCRU_BASE + PMUCRU_PPLL_CON(3),
+			      PLL_NO_BYPASS_MODE);
+	else
+		mmio_write_32(CRU_BASE + CRU_PLL_CON(pll_id, 3),
+			      PLL_NO_BYPASS_MODE);
+}
+
+static void plls_resume_prepare(void)
+{
+	int i;
+
+	for (i = 0; i < CRU_CLKSEL_COUNT; i++)
+		mmio_write_32((CRU_BASE + CRU_CLKSEL_OFFSET + i * REG_SIZE),
+			      REG_SOC_WMSK | slp_data.cru_clksel_con[i]);
+	for (i = 0; i < PMUCRU_CLKSEL_CONUT; i++)
+		mmio_write_32((PMUCRU_BASE +
+			      PMUCRU_CLKSEL_OFFSET + i * REG_SIZE),
+			      REG_SOC_WMSK | slp_data.pmucru_clksel_con[i]);
+}
+
+void plls_resume(void)
+{
+	int pll_id;
+
+	plls_resume_prepare();
+	for (pll_id = ALPLL_ID; pll_id < END_PLL_ID; pll_id++) {
+		set_plls_nobypass(pll_id);
+		set_pll_normal_mode(pll_id);
+	}
+}
+
+void soc_global_soft_reset_init(void)
+{
+	mmio_write_32(PMUCRU_BASE + CRU_PMU_RSTHOLD_CON(1),
+		      CRU_PMU_SGRF_RST_RLS);
+}
+
+void  __dead2 soc_global_soft_reset(void)
+{
+	uint32_t temp_val;
+
+	set_pll_slow_mode(VPLL_ID);
+	set_pll_slow_mode(NPLL_ID);
+	set_pll_slow_mode(GPLL_ID);
+	set_pll_slow_mode(CPLL_ID);
+	set_pll_slow_mode(PPLL_ID);
+	set_pll_slow_mode(ABPLL_ID);
+	set_pll_slow_mode(ALPLL_ID);
+	temp_val = mmio_read_32(CRU_BASE + CRU_GLB_RST_CON) |
+		   PMU_RST_BY_FIRST_SFT;
+	mmio_write_32(CRU_BASE + CRU_GLB_RST_CON, temp_val);
+	mmio_write_32(CRU_BASE + CRU_GLB_SRST_FST, GLB_SRST_FST_CFG_VAL);
+
+	/*
+	 * Maybe the HW needs some times to reset the system,
+	 * so we do not hope the core to excute valid codes.
+	 */
+	while (1)
+	;
+}
+
+void plat_rockchip_soc_init(void)
+{
+	secure_timer_init();
+	dma_secure_cfg(0);
+	sgrf_init();
+	soc_global_soft_reset_init();
+}