Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 729 insertions, 0 deletions

diff --git a/plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.c b/plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.c
new file mode 100644
index 0000000..fa98eb3
--- /dev/null
+++ b/plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.c
@@ -0,0 +1,482 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include <platform_def.h>
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+
+#include <ddr_rk3368.h>
+#include <pmu.h>
+#include <rk3368_def.h>
+#include <soc.h>
+
+/* GRF_SOC_STATUS0 */
+#define DPLL_LOCK		(0x1 << 2)
+
+/* GRF_DDRC0_CON0 */
+#define GRF_DDR_16BIT_EN	(((0x1 << 3) << 16) | (0x1 << 3))
+#define GRF_DDR_32BIT_EN	(((0x1 << 3) << 16) | (0x0 << 3))
+#define GRF_MOBILE_DDR_EN	(((0x1 << 4) << 16) | (0x1 << 4))
+#define GRF_MOBILE_DDR_DISB	(((0x1 << 4) << 16) | (0x0 << 4))
+#define GRF_DDR3_EN		(((0x1 << 2) << 16) | (0x1 << 2))
+#define GRF_LPDDR2_3_EN		(((0x1 << 2) << 16) | (0x0 << 2))
+
+/* PMUGRF_SOC_CON0 */
+#define ddrphy_bufferen_io_en(n)	((0x1 << (9 + 16)) | (n << 9))
+#define ddrphy_bufferen_core_en(n)	((0x1 << (8 + 16)) | (n << 8))
+
+struct PCTRL_TIMING_TAG {
+	uint32_t ddrfreq;
+	uint32_t TOGCNT1U;
+	uint32_t TINIT;
+	uint32_t TRSTH;
+	uint32_t TOGCNT100N;
+	uint32_t TREFI;
+	uint32_t TMRD;
+	uint32_t TRFC;
+	uint32_t TRP;
+	uint32_t TRTW;
+	uint32_t TAL;
+	uint32_t TCL;
+	uint32_t TCWL;
+	uint32_t TRAS;
+	uint32_t TRC;
+	uint32_t TRCD;
+	uint32_t TRRD;
+	uint32_t TRTP;
+	uint32_t TWR;
+	uint32_t TWTR;
+	uint32_t TEXSR;
+	uint32_t TXP;
+	uint32_t TXPDLL;
+	uint32_t TZQCS;
+	uint32_t TZQCSI;
+	uint32_t TDQS;
+	uint32_t TCKSRE;
+	uint32_t TCKSRX;
+	uint32_t TCKE;
+	uint32_t TMOD;
+	uint32_t TRSTL;
+	uint32_t TZQCL;
+	uint32_t TMRR;
+	uint32_t TCKESR;
+	uint32_t TDPD;
+	uint32_t TREFI_MEM_DDR3;
+};
+
+struct MSCH_SAVE_REG_TAG {
+	uint32_t ddrconf;
+	uint32_t ddrtiming;
+	uint32_t ddrmode;
+	uint32_t readlatency;
+	uint32_t activate;
+	uint32_t devtodev;
+};
+
+/* ddr suspend need save reg */
+struct PCTL_SAVE_REG_TAG {
+	uint32_t SCFG;
+	uint32_t CMDTSTATEN;
+	uint32_t MCFG1;
+	uint32_t MCFG;
+	uint32_t PPCFG;
+	struct PCTRL_TIMING_TAG pctl_timing;
+	/* DFI Control Registers */
+	uint32_t DFITCTRLDELAY;
+	uint32_t DFIODTCFG;
+	uint32_t DFIODTCFG1;
+	uint32_t DFIODTRANKMAP;
+	/* DFI Write Data Registers */
+	uint32_t DFITPHYWRDATA;
+	uint32_t DFITPHYWRLAT;
+	uint32_t DFITPHYWRDATALAT;
+	/* DFI Read Data Registers */
+	uint32_t DFITRDDATAEN;
+	uint32_t DFITPHYRDLAT;
+	/* DFI Update Registers */
+	uint32_t DFITPHYUPDTYPE0;
+	uint32_t DFITPHYUPDTYPE1;
+	uint32_t DFITPHYUPDTYPE2;
+	uint32_t DFITPHYUPDTYPE3;
+	uint32_t DFITCTRLUPDMIN;
+	uint32_t DFITCTRLUPDMAX;
+	uint32_t DFITCTRLUPDDLY;
+	uint32_t DFIUPDCFG;
+	uint32_t DFITREFMSKI;
+	uint32_t DFITCTRLUPDI;
+	/* DFI Status Registers */
+	uint32_t DFISTCFG0;
+	uint32_t DFISTCFG1;
+	uint32_t DFITDRAMCLKEN;
+	uint32_t DFITDRAMCLKDIS;
+	uint32_t DFISTCFG2;
+	/* DFI Low Power Register */
+	uint32_t DFILPCFG0;
+};
+
+struct DDRPHY_SAVE_REG_TAG {
+	uint32_t PHY_REG0;
+	uint32_t PHY_REG1;
+	uint32_t PHY_REGB;
+	uint32_t PHY_REGC;
+	uint32_t PHY_REG11;
+	uint32_t PHY_REG13;
+	uint32_t PHY_REG14;
+	uint32_t PHY_REG16;
+	uint32_t PHY_REG20;
+	uint32_t PHY_REG21;
+	uint32_t PHY_REG26;
+	uint32_t PHY_REG27;
+	uint32_t PHY_REG28;
+	uint32_t PHY_REG30;
+	uint32_t PHY_REG31;
+	uint32_t PHY_REG36;
+	uint32_t PHY_REG37;
+	uint32_t PHY_REG38;
+	uint32_t PHY_REG40;
+	uint32_t PHY_REG41;
+	uint32_t PHY_REG46;
+	uint32_t PHY_REG47;
+	uint32_t PHY_REG48;
+	uint32_t PHY_REG50;
+	uint32_t PHY_REG51;
+	uint32_t PHY_REG56;
+	uint32_t PHY_REG57;
+	uint32_t PHY_REG58;
+	uint32_t PHY_REGDLL;
+	uint32_t PHY_REGEC;
+	uint32_t PHY_REGED;
+	uint32_t PHY_REGEE;
+	uint32_t PHY_REGEF;
+	uint32_t PHY_REGFB;
+	uint32_t PHY_REGFC;
+	uint32_t PHY_REGFD;
+	uint32_t PHY_REGFE;
+};
+
+struct BACKUP_REG_TAG {
+	uint32_t tag;
+	uint32_t pctladdr;
+	struct PCTL_SAVE_REG_TAG pctl;
+	uint32_t phyaddr;
+	struct DDRPHY_SAVE_REG_TAG phy;
+	uint32_t nocaddr;
+	struct MSCH_SAVE_REG_TAG noc;
+	uint32_t pllselect;
+	uint32_t phypllockaddr;
+	uint32_t phyplllockmask;
+	uint32_t phyplllockval;
+	uint32_t pllpdstat;
+	uint32_t dpllmodeaddr;
+	uint32_t dpllslowmode;
+	uint32_t dpllnormalmode;
+	uint32_t dpllresetaddr;
+	uint32_t dpllreset;
+	uint32_t dplldereset;
+	uint32_t dpllconaddr;
+	uint32_t dpllcon[4];
+	uint32_t dplllockaddr;
+	uint32_t dplllockmask;
+	uint32_t dplllockval;
+	uint32_t ddrpllsrcdivaddr;
+	uint32_t ddrpllsrcdiv;
+	uint32_t retendisaddr;
+	uint32_t retendisval;
+	uint32_t grfregaddr;
+	uint32_t grfddrcreg;
+	uint32_t crupctlphysoftrstaddr;
+	uint32_t cruresetpctlphy;
+	uint32_t cruderesetphy;
+	uint32_t cruderesetpctlphy;
+	uint32_t physoftrstaddr;
+	uint32_t endtag;
+};
+
+static uint32_t ddr_get_phy_pll_freq(void)
+{
+	uint32_t ret = 0;
+	uint32_t fb_div, pre_div;
+
+	fb_div = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGEC);
+	fb_div |= (mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGED) & 0x1) << 8;
+
+	pre_div = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGEE) & 0xff;
+	ret = 2 * 24 * fb_div / (4 * pre_div);
+
+	return ret;
+}
+
+static void ddr_copy(uint32_t *pdest, uint32_t *psrc, uint32_t words)
+{
+	uint32_t i;
+
+	for (i = 0; i < words; i++)
+		pdest[i] = psrc[i];
+}
+
+static void ddr_get_dpll_cfg(uint32_t *p)
+{
+	uint32_t nmhz, NO, NF, NR;
+
+	nmhz = ddr_get_phy_pll_freq();
+	if (nmhz <= 150)
+		NO = 6;
+	else if (nmhz <= 250)
+		NO = 4;
+	else if (nmhz <= 500)
+		NO = 2;
+	else
+		NO = 1;
+
+	NR = 1;
+	NF = 2 * nmhz * NR * NO / 24;
+
+	p[0] = SET_NR(NR) | SET_NO(NO);
+	p[1] = SET_NF(NF);
+	p[2] = SET_NB(NF / 2);
+}
+
+void ddr_reg_save(uint32_t pllpdstat, uint64_t base_addr)
+{
+	struct BACKUP_REG_TAG *p_ddr_reg = (struct BACKUP_REG_TAG *)base_addr;
+	struct PCTL_SAVE_REG_TAG *pctl_tim = &p_ddr_reg->pctl;
+
+	p_ddr_reg->tag = 0x56313031;
+	p_ddr_reg->pctladdr = DDR_PCTL_BASE;
+	p_ddr_reg->phyaddr = DDR_PHY_BASE;
+	p_ddr_reg->nocaddr = SERVICE_BUS_BASE;
+
+	/* PCTLR */
+	ddr_copy((uint32_t *)&pctl_tim->pctl_timing.TOGCNT1U,
+		 (uint32_t *)(DDR_PCTL_BASE + DDR_PCTL_TOGCNT1U), 35);
+	pctl_tim->pctl_timing.TREFI |= DDR_UPD_REF_ENABLE;
+	pctl_tim->SCFG = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_SCFG);
+	pctl_tim->CMDTSTATEN = mmio_read_32(DDR_PCTL_BASE +
+					    DDR_PCTL_CMDTSTATEN);
+	pctl_tim->MCFG1 = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_MCFG1);
+	pctl_tim->MCFG = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_MCFG);
+	pctl_tim->PPCFG = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_PPCFG);
+	pctl_tim->pctl_timing.ddrfreq = mmio_read_32(DDR_PCTL_BASE +
+						     DDR_PCTL_TOGCNT1U * 2);
+	pctl_tim->DFITCTRLDELAY = mmio_read_32(DDR_PCTL_BASE +
+					       DDR_PCTL_DFITCTRLDELAY);
+	pctl_tim->DFIODTCFG = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_DFIODTCFG);
+	pctl_tim->DFIODTCFG1 = mmio_read_32(DDR_PCTL_BASE +
+					    DDR_PCTL_DFIODTCFG1);
+	pctl_tim->DFIODTRANKMAP = mmio_read_32(DDR_PCTL_BASE +
+					       DDR_PCTL_DFIODTRANKMAP);
+	pctl_tim->DFITPHYWRDATA = mmio_read_32(DDR_PCTL_BASE +
+					       DDR_PCTL_DFITPHYWRDATA);
+	pctl_tim->DFITPHYWRLAT = mmio_read_32(DDR_PCTL_BASE +
+					      DDR_PCTL_DFITPHYWRLAT);
+	pctl_tim->DFITPHYWRDATALAT = mmio_read_32(DDR_PCTL_BASE +
+						  DDR_PCTL_DFITPHYWRDATALAT);
+	pctl_tim->DFITRDDATAEN = mmio_read_32(DDR_PCTL_BASE +
+					      DDR_PCTL_DFITRDDATAEN);
+	pctl_tim->DFITPHYRDLAT = mmio_read_32(DDR_PCTL_BASE +
+					      DDR_PCTL_DFITPHYRDLAT);
+	pctl_tim->DFITPHYUPDTYPE0 = mmio_read_32(DDR_PCTL_BASE +
+						 DDR_PCTL_DFITPHYUPDTYPE0);
+	pctl_tim->DFITPHYUPDTYPE1 = mmio_read_32(DDR_PCTL_BASE +
+						 DDR_PCTL_DFITPHYUPDTYPE1);
+	pctl_tim->DFITPHYUPDTYPE2 = mmio_read_32(DDR_PCTL_BASE +
+						 DDR_PCTL_DFITPHYUPDTYPE2);
+	pctl_tim->DFITPHYUPDTYPE3 = mmio_read_32(DDR_PCTL_BASE +
+						 DDR_PCTL_DFITPHYUPDTYPE3);
+	pctl_tim->DFITCTRLUPDMIN = mmio_read_32(DDR_PCTL_BASE +
+						DDR_PCTL_DFITCTRLUPDMIN);
+	pctl_tim->DFITCTRLUPDMAX = mmio_read_32(DDR_PCTL_BASE +
+						DDR_PCTL_DFITCTRLUPDMAX);
+	pctl_tim->DFITCTRLUPDDLY = mmio_read_32(DDR_PCTL_BASE +
+						DDR_PCTL_DFITCTRLUPDDLY);
+
+	pctl_tim->DFIUPDCFG = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_DFIUPDCFG);
+	pctl_tim->DFITREFMSKI = mmio_read_32(DDR_PCTL_BASE +
+					     DDR_PCTL_DFITREFMSKI);
+	pctl_tim->DFITCTRLUPDI = mmio_read_32(DDR_PCTL_BASE +
+					      DDR_PCTL_DFITCTRLUPDI);
+	pctl_tim->DFISTCFG0 = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_DFISTCFG0);
+	pctl_tim->DFISTCFG1 = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_DFISTCFG1);
+	pctl_tim->DFITDRAMCLKEN = mmio_read_32(DDR_PCTL_BASE +
+					       DDR_PCTL_DFITDRAMCLKEN);
+	pctl_tim->DFITDRAMCLKDIS = mmio_read_32(DDR_PCTL_BASE +
+						DDR_PCTL_DFITDRAMCLKDIS);
+	pctl_tim->DFISTCFG2 = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_DFISTCFG2);
+	pctl_tim->DFILPCFG0 = mmio_read_32(DDR_PCTL_BASE + DDR_PCTL_DFILPCFG0);
+
+	/* PHY */
+	p_ddr_reg->phy.PHY_REG0 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG0);
+	p_ddr_reg->phy.PHY_REG1 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG1);
+	p_ddr_reg->phy.PHY_REGB = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGB);
+	p_ddr_reg->phy.PHY_REGC = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGC);
+	p_ddr_reg->phy.PHY_REG11 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG11);
+	p_ddr_reg->phy.PHY_REG13 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG13);
+	p_ddr_reg->phy.PHY_REG14 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG14);
+	p_ddr_reg->phy.PHY_REG16 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG16);
+	p_ddr_reg->phy.PHY_REG20 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG20);
+	p_ddr_reg->phy.PHY_REG21 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG21);
+	p_ddr_reg->phy.PHY_REG26 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG26);
+	p_ddr_reg->phy.PHY_REG27 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG27);
+	p_ddr_reg->phy.PHY_REG28 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG28);
+	p_ddr_reg->phy.PHY_REG30 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG30);
+	p_ddr_reg->phy.PHY_REG31 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG31);
+	p_ddr_reg->phy.PHY_REG36 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG36);
+	p_ddr_reg->phy.PHY_REG37 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG37);
+	p_ddr_reg->phy.PHY_REG38 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG38);
+	p_ddr_reg->phy.PHY_REG40 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG40);
+	p_ddr_reg->phy.PHY_REG41 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG41);
+	p_ddr_reg->phy.PHY_REG46 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG46);
+	p_ddr_reg->phy.PHY_REG47 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG47);
+	p_ddr_reg->phy.PHY_REG48 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG48);
+	p_ddr_reg->phy.PHY_REG50 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG50);
+	p_ddr_reg->phy.PHY_REG51 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG51);
+	p_ddr_reg->phy.PHY_REG56 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG56);
+	p_ddr_reg->phy.PHY_REG57 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG57);
+	p_ddr_reg->phy.PHY_REG58 = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG58);
+	p_ddr_reg->phy.PHY_REGDLL = mmio_read_32(DDR_PHY_BASE +
+						 DDR_PHY_REGDLL);
+	p_ddr_reg->phy.PHY_REGEC = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGEC);
+	p_ddr_reg->phy.PHY_REGED = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGED);
+	p_ddr_reg->phy.PHY_REGEE = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGEE);
+	p_ddr_reg->phy.PHY_REGEF = 0;
+
+	if (mmio_read_32(DDR_PHY_BASE + DDR_PHY_REG2) & 0x2) {
+		p_ddr_reg->phy.PHY_REGFB = mmio_read_32(DDR_PHY_BASE +
+							DDR_PHY_REG2C);
+		p_ddr_reg->phy.PHY_REGFC = mmio_read_32(DDR_PHY_BASE +
+							DDR_PHY_REG3C);
+		p_ddr_reg->phy.PHY_REGFD = mmio_read_32(DDR_PHY_BASE +
+							DDR_PHY_REG4C);
+		p_ddr_reg->phy.PHY_REGFE = mmio_read_32(DDR_PHY_BASE +
+							DDR_PHY_REG5C);
+	} else {
+		p_ddr_reg->phy.PHY_REGFB = mmio_read_32(DDR_PHY_BASE +
+							DDR_PHY_REGFB);
+		p_ddr_reg->phy.PHY_REGFC = mmio_read_32(DDR_PHY_BASE +
+							DDR_PHY_REGFC);
+		p_ddr_reg->phy.PHY_REGFD = mmio_read_32(DDR_PHY_BASE +
+							DDR_PHY_REGFD);
+		p_ddr_reg->phy.PHY_REGFE = mmio_read_32(DDR_PHY_BASE +
+							DDR_PHY_REGFE);
+	}
+
+	/* NOC */
+	p_ddr_reg->noc.ddrconf = mmio_read_32(SERVICE_BUS_BASE + MSCH_DDRCONF);
+	p_ddr_reg->noc.ddrtiming = mmio_read_32(SERVICE_BUS_BASE +
+						MSCH_DDRTIMING);
+	p_ddr_reg->noc.ddrmode = mmio_read_32(SERVICE_BUS_BASE + MSCH_DDRMODE);
+	p_ddr_reg->noc.readlatency = mmio_read_32(SERVICE_BUS_BASE +
+						  MSCH_READLATENCY);
+	p_ddr_reg->noc.activate = mmio_read_32(SERVICE_BUS_BASE +
+					       MSCH_ACTIVATE);
+	p_ddr_reg->noc.devtodev = mmio_read_32(SERVICE_BUS_BASE +
+					       MSCH_DEVTODEV);
+
+	p_ddr_reg->pllselect = mmio_read_32(DDR_PHY_BASE + DDR_PHY_REGEE) * 0x1;
+	p_ddr_reg->phypllockaddr = GRF_BASE + GRF_SOC_STATUS0;
+	p_ddr_reg->phyplllockmask = GRF_DDRPHY_LOCK;
+	p_ddr_reg->phyplllockval = 0;
+
+	/* PLLPD */
+	p_ddr_reg->pllpdstat = pllpdstat;
+	/* DPLL */
+	p_ddr_reg->dpllmodeaddr = CRU_BASE + PLL_CONS(DPLL_ID, 3);
+	/* slow mode and power on */
+	p_ddr_reg->dpllslowmode = DPLL_WORK_SLOW_MODE | DPLL_POWER_DOWN;
+	p_ddr_reg->dpllnormalmode = DPLL_WORK_NORMAL_MODE;
+	p_ddr_reg->dpllresetaddr = CRU_BASE + PLL_CONS(DPLL_ID, 3);
+	p_ddr_reg->dpllreset = DPLL_RESET_CONTROL_NORMAL;
+	p_ddr_reg->dplldereset = DPLL_RESET_CONTROL_RESET;
+	p_ddr_reg->dpllconaddr = CRU_BASE + PLL_CONS(DPLL_ID, 0);
+
+	if (p_ddr_reg->pllselect == 0) {
+		p_ddr_reg->dpllcon[0] = (mmio_read_32(CRU_BASE +
+						      PLL_CONS(DPLL_ID, 0))
+							& 0xffff) |
+					(0xFFFFu << 16);
+		p_ddr_reg->dpllcon[1] = (mmio_read_32(CRU_BASE +
+						      PLL_CONS(DPLL_ID, 1))
+							& 0xffff);
+		p_ddr_reg->dpllcon[2] = (mmio_read_32(CRU_BASE +
+						      PLL_CONS(DPLL_ID, 2))
+							& 0xffff);
+		p_ddr_reg->dpllcon[3] = (mmio_read_32(CRU_BASE +
+						      PLL_CONS(DPLL_ID, 3))
+							& 0xffff) |
+					(0xFFFFu << 16);
+	} else {
+		ddr_get_dpll_cfg(&p_ddr_reg->dpllcon[0]);
+	}
+
+	p_ddr_reg->pllselect = 0;
+	p_ddr_reg->dplllockaddr = CRU_BASE + PLL_CONS(DPLL_ID, 1);
+	p_ddr_reg->dplllockmask = DPLL_STATUS_LOCK;
+	p_ddr_reg->dplllockval = DPLL_STATUS_LOCK;
+
+	/* SET_DDR_PLL_SRC */
+	p_ddr_reg->ddrpllsrcdivaddr = CRU_BASE + CRU_CLKSELS_CON(13);
+	p_ddr_reg->ddrpllsrcdiv = (mmio_read_32(CRU_BASE + CRU_CLKSELS_CON(13))
+					& DDR_PLL_SRC_MASK)
+					| (DDR_PLL_SRC_MASK << 16);
+	p_ddr_reg->retendisaddr = PMU_BASE + PMU_PWRMD_COM;
+	p_ddr_reg->retendisval = PD_PERI_PWRDN_ENABLE;
+	p_ddr_reg->grfregaddr = GRF_BASE + GRF_DDRC0_CON0;
+	p_ddr_reg->grfddrcreg = (mmio_read_32(GRF_BASE + GRF_DDRC0_CON0) &
+					      DDR_PLL_SRC_MASK) |
+				 (DDR_PLL_SRC_MASK << 16);
+
+	/* pctl phy soft reset */
+	p_ddr_reg->crupctlphysoftrstaddr = CRU_BASE + CRU_SOFTRSTS_CON(10);
+	p_ddr_reg->cruresetpctlphy = DDRCTRL0_PSRSTN_REQ(1) |
+				     DDRCTRL0_SRSTN_REQ(1) |
+				     DDRPHY0_PSRSTN_REQ(1) |
+				     DDRPHY0_SRSTN_REQ(1);
+	p_ddr_reg->cruderesetphy = DDRCTRL0_PSRSTN_REQ(1) |
+				   DDRCTRL0_SRSTN_REQ(1) |
+				   DDRPHY0_PSRSTN_REQ(0) |
+				   DDRPHY0_SRSTN_REQ(0);
+
+	p_ddr_reg->cruderesetpctlphy = DDRCTRL0_PSRSTN_REQ(0) |
+				       DDRCTRL0_SRSTN_REQ(0) |
+				       DDRPHY0_PSRSTN_REQ(0) |
+				       DDRPHY0_SRSTN_REQ(0);
+
+	p_ddr_reg->physoftrstaddr = DDR_PHY_BASE + DDR_PHY_REG0;
+
+	p_ddr_reg->endtag = 0xFFFFFFFF;
+}
+
+/*
+ * "rk3368_ddr_reg_resume_V1.05.bin" is an executable bin which is generated
+ * by ARM DS5 for resuming ddr controller. If the soc wakes up from system
+ * suspend, ddr needs to be resumed and the resuming code needs to be run in
+ * sram. But there is not a way to pointing the resuming code to the PMUSRAM
+ * when linking .o files of bl31, so we use the
+ * "rk3368_ddr_reg_resume_V1.05.bin" whose code is position-independent and
+ * it can be loaded anywhere and run.
+ */
+static __aligned(4) unsigned int ddr_reg_resume[] = {
+	#include "rk3368_ddr_reg_resume_V1.05.bin"
+};
+
+uint32_t ddr_get_resume_code_size(void)
+{
+	return sizeof(ddr_reg_resume);
+}
+
+uint32_t ddr_get_resume_data_size(void)
+{
+	return sizeof(struct BACKUP_REG_TAG);
+}
+
+uint32_t *ddr_get_resume_code_base(void)
+{
+	return (unsigned int *)ddr_reg_resume;
+}
diff --git a/plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.h b/plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.h
new file mode 100644
index 0000000..6663bcb
--- /dev/null
+++ b/plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.h
@@ -0,0 +1,247 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef DDR_RK3368_H
+#define DDR_RK3368_H
+
+#define DDR_PCTL_SCFG		0x0
+#define DDR_PCTL_SCTL		0x4
+#define DDR_PCTL_STAT		0x8
+#define DDR_PCTL_INTRSTAT	0xc
+
+#define DDR_PCTL_MCMD		0x40
+#define DDR_PCTL_POWCTL		0x44
+#define DDR_PCTL_POWSTAT	0x48
+#define DDR_PCTL_CMDTSTAT	0x4c
+#define DDR_PCTL_CMDTSTATEN	0x50
+#define DDR_PCTL_MRRCFG0	0x60
+#define DDR_PCTL_MRRSTAT0	0x64
+#define DDR_PCTL_MRRSTAT1	0x68
+#define DDR_PCTL_MCFG1		0x7c
+#define DDR_PCTL_MCFG		0x80
+#define DDR_PCTL_PPCFG		0x84
+#define DDR_PCTL_MSTAT		0x88
+#define DDR_PCTL_LPDDR2ZQCFG	0x8c
+#define DDR_PCTL_DTUPDES		0x94
+#define DDR_PCTL_DTUNA			0x98
+#define DDR_PCTL_DTUNE			0x9c
+#define DDR_PCTL_DTUPRD0		0xa0
+#define DDR_PCTL_DTUPRD1		0xa4
+#define DDR_PCTL_DTUPRD2		0xa8
+#define DDR_PCTL_DTUPRD3		0xac
+#define DDR_PCTL_DTUAWDT		0xb0
+#define DDR_PCTL_TOGCNT1U		0xc0
+#define DDR_PCTL_TINIT			0xc4
+#define DDR_PCTL_TRSTH			0xc8
+#define DDR_PCTL_TOGCNT100N		0xcc
+#define DDR_PCTL_TREFI			0xd0
+#define DDR_PCTL_TMRD			0xd4
+#define DDR_PCTL_TRFC			0xd8
+#define DDR_PCTL_TRP			0xdc
+#define DDR_PCTL_TRTW			0xe0
+#define DDR_PCTL_TAL			0xe4
+#define DDR_PCTL_TCL			0xe8
+#define DDR_PCTL_TCWL			0xec
+#define DDR_PCTL_TRAS			0xf0
+#define DDR_PCTL_TRC			0xf4
+#define DDR_PCTL_TRCD			0xf8
+#define DDR_PCTL_TRRD			0xfc
+#define DDR_PCTL_TRTP			0x100
+#define DDR_PCTL_TWR			0x104
+#define DDR_PCTL_TWTR			0x108
+#define DDR_PCTL_TEXSR			0x10c
+#define DDR_PCTL_TXP			0x110
+#define DDR_PCTL_TXPDLL			0x114
+#define DDR_PCTL_TZQCS			0x118
+#define DDR_PCTL_TZQCSI			0x11c
+#define DDR_PCTL_TDQS			0x120
+#define DDR_PCTL_TCKSRE			0x124
+#define DDR_PCTL_TCKSRX			0x128
+#define DDR_PCTL_TCKE			0x12c
+#define DDR_PCTL_TMOD			0x130
+#define DDR_PCTL_TRSTL			0x134
+#define DDR_PCTL_TZQCL			0x138
+#define DDR_PCTL_TMRR			0x13c
+#define DDR_PCTL_TCKESR			0x140
+#define DDR_PCTL_TDPD			0x144
+#define DDR_PCTL_TREFI_MEM_DDR3	0x148
+#define DDR_PCTL_ECCCFG			0x180
+#define DDR_PCTL_ECCTST			0x184
+#define DDR_PCTL_ECCCLR			0x188
+#define DDR_PCTL_ECCLOG			0x18c
+#define DDR_PCTL_DTUWACTL		0x200
+#define DDR_PCTL_DTURACTL		0x204
+#define DDR_PCTL_DTUCFG			0x208
+#define DDR_PCTL_DTUECTL		0x20c
+#define DDR_PCTL_DTUWD0			0x210
+#define DDR_PCTL_DTUWD1			0x214
+#define DDR_PCTL_DTUWD2			0x218
+#define DDR_PCTL_DTUWD3			0x21c
+#define DDR_PCTL_DTUWDM			0x220
+#define DDR_PCTL_DTURD0			0x224
+#define DDR_PCTL_DTURD1			0x228
+#define DDR_PCTL_DTURD2			0x22c
+#define DDR_PCTL_DTURD3			0x230
+#define DDR_PCTL_DTULFSRWD		0x234
+#define DDR_PCTL_DTULFSRRD		0x238
+#define DDR_PCTL_DTUEAF			0x23c
+#define DDR_PCTL_DFITCTRLDELAY	0x240
+#define DDR_PCTL_DFIODTCFG		0x244
+#define DDR_PCTL_DFIODTCFG1		0x248
+#define DDR_PCTL_DFIODTRANKMAP		0x24c
+#define DDR_PCTL_DFITPHYWRDATA		0x250
+#define DDR_PCTL_DFITPHYWRLAT		0x254
+#define DDR_PCTL_DFITPHYWRDATALAT	0x258
+#define DDR_PCTL_DFITRDDATAEN		0x260
+#define DDR_PCTL_DFITPHYRDLAT		0x264
+#define DDR_PCTL_DFITPHYUPDTYPE0	0x270
+#define DDR_PCTL_DFITPHYUPDTYPE1	0x274
+#define DDR_PCTL_DFITPHYUPDTYPE2	0x278
+#define DDR_PCTL_DFITPHYUPDTYPE3	0x27c
+#define DDR_PCTL_DFITCTRLUPDMIN		0x280
+#define DDR_PCTL_DFITCTRLUPDMAX		0x284
+#define DDR_PCTL_DFITCTRLUPDDLY		0x288
+#define DDR_PCTL_DFIUPDCFG			0x290
+#define DDR_PCTL_DFITREFMSKI		0x294
+#define DDR_PCTL_DFITCTRLUPDI		0x298
+#define DDR_PCTL_DFITRCFG0			0x2ac
+#define DDR_PCTL_DFITRSTAT0			0x2b0
+#define DDR_PCTL_DFITRWRLVLEN		0x2b4
+#define DDR_PCTL_DFITRRDLVLEN		0x2b8
+#define DDR_PCTL_DFITRRDLVLGATEEN	0x2bc
+#define DDR_PCTL_DFISTSTAT0			0x2c0
+#define DDR_PCTL_DFISTCFG0			0x2c4
+#define DDR_PCTL_DFISTCFG1			0x2c8
+#define DDR_PCTL_DFITDRAMCLKEN		0x2d0
+#define DDR_PCTL_DFITDRAMCLKDIS		0x2d4
+#define DDR_PCTL_DFISTCFG2			0x2d8
+#define DDR_PCTL_DFISTPARCLR		0x2dc
+#define DDR_PCTL_DFISTPARLOG		0x2e0
+#define DDR_PCTL_DFILPCFG0			0x2f0
+#define DDR_PCTL_DFITRWRLVLRESP0	0x300
+#define DDR_PCTL_DFITRWRLVLRESP1	0x304
+#define DDR_PCTL_DFITRWRLVLRESP2	0x308
+#define DDR_PCTL_DFITRRDLVLRESP0	0x30c
+#define DDR_PCTL_DFITRRDLVLRESP1	0x310
+#define DDR_PCTL_DFITRRDLVLRESP2	0x314
+#define DDR_PCTL_DFITRWRLVLDELAY0	0x318
+#define DDR_PCTL_DFITRWRLVLDELAY1	0x31c
+#define DDR_PCTL_DFITRWRLVLDELAY2	0x320
+#define DDR_PCTL_DFITRRDLVLDELAY0	0x324
+#define DDR_PCTL_DFITRRDLVLDELAY1	0x328
+#define DDR_PCTL_DFITRRDLVLDELAY2	0x32c
+#define DDR_PCTL_DFITRRDLVLGATEDELAY0	0x330
+#define DDR_PCTL_DFITRRDLVLGATEDELAY1	0x334
+#define DDR_PCTL_DFITRRDLVLGATEDELAY2	0x338
+#define DDR_PCTL_DFITRCMD			0x33c
+#define DDR_PCTL_IPVR				0x3f8
+#define DDR_PCTL_IPTR				0x3fc
+
+/* DDR PHY REG */
+#define DDR_PHY_REG0		0x0
+#define DDR_PHY_REG1		0x4
+#define DDR_PHY_REG2		0x8
+#define DDR_PHY_REG3		0xc
+#define DDR_PHY_REG4		0x10
+#define DDR_PHY_REG5		0x14
+#define DDR_PHY_REG6		0x18
+#define DDR_PHY_REGB		0x2c
+#define DDR_PHY_REGC		0x30
+#define DDR_PHY_REG11		0x44
+#define DDR_PHY_REG12		0x48
+#define DDR_PHY_REG13		0x4c
+#define DDR_PHY_REG14		0x50
+#define DDR_PHY_REG16		0x58
+#define DDR_PHY_REG20		0x80
+#define DDR_PHY_REG21		0x84
+#define DDR_PHY_REG26		0x98
+#define DDR_PHY_REG27		0x9c
+#define DDR_PHY_REG28		0xa0
+#define DDR_PHY_REG2C		0xb0
+#define DDR_PHY_REG30		0xc0
+#define DDR_PHY_REG31		0xc4
+#define DDR_PHY_REG36		0xd8
+#define DDR_PHY_REG37		0xdc
+#define DDR_PHY_REG38		0xe0
+#define DDR_PHY_REG3C		0xf0
+#define DDR_PHY_REG40		0x100
+#define DDR_PHY_REG41		0x104
+#define DDR_PHY_REG46		0x118
+#define DDR_PHY_REG47		0x11c
+#define DDR_PHY_REG48		0x120
+#define DDR_PHY_REG4C		0x130
+#define DDR_PHY_REG50		0x140
+#define DDR_PHY_REG51		0x144
+#define DDR_PHY_REG56		0x158
+#define DDR_PHY_REG57		0x15c
+#define DDR_PHY_REG58		0x160
+#define DDR_PHY_REG5C		0x170
+#define DDR_PHY_REGDLL		0x290
+#define DDR_PHY_REGEC		0x3b0
+#define DDR_PHY_REGED		0x3b4
+#define DDR_PHY_REGEE		0x3b8
+#define DDR_PHY_REGEF		0x3bc
+#define DDR_PHY_REGF0		0x3c0
+#define DDR_PHY_REGF1		0x3c4
+#define DDR_PHY_REGF2		0x3c8
+#define DDR_PHY_REGFA		0x3e8
+#define DDR_PHY_REGFB		0x3ec
+#define DDR_PHY_REGFC		0x3f0
+#define DDR_PHY_REGFD		0x3f4
+#define DDR_PHY_REGFE		0x3f8
+#define DDR_PHY_REGFF		0x3fc
+
+/* MSCH REG define */
+#define MSCH_COREID			0x0
+#define MSCH_DDRCONF		0x8
+#define MSCH_DDRTIMING		0xc
+#define MSCH_DDRMODE		0x10
+#define MSCH_READLATENCY	0x14
+#define MSCH_ACTIVATE		0x38
+#define MSCH_DEVTODEV		0x3c
+
+#define SET_NR(n)      ((0x3f << (8 + 16)) | ((n - 1) << 8))
+#define SET_NO(n)      ((0xf << (0 + 16)) | ((n - 1) << 0))
+#define SET_NF(n)      ((n - 1) & 0x1fff)
+#define SET_NB(n)      ((n - 1) & 0xfff)
+#define PLLMODE(n)     ((0x3 << (8 + 16)) | (n << 8))
+
+/* GRF REG define */
+#define GRF_SOC_STATUS0		0x480
+#define GRF_DDRPHY_LOCK		(0x1 << 15)
+#define GRF_DDRC0_CON0		0x600
+
+/* CRU softreset ddr pctl, phy */
+#define DDRMSCH0_SRSTN_REQ(n)  (((0x1 << 10) << 16) | (n << 10))
+#define DDRCTRL0_PSRSTN_REQ(n) (((0x1 << 3) << 16) | (n << 3))
+#define DDRCTRL0_SRSTN_REQ(n)  (((0x1 << 2) << 16) | (n << 2))
+#define DDRPHY0_PSRSTN_REQ(n)  (((0x1 << 1) << 16) | (n << 1))
+#define DDRPHY0_SRSTN_REQ(n)   (((0x1 << 0) << 16) | (n << 0))
+
+/* CRU_DPLL_CON2 */
+#define DPLL_STATUS_LOCK		(1U << 31)
+
+/* CRU_DPLL_CON3 */
+#define DPLL_POWER_DOWN			((0x1 << (1 + 16)) | (0 << 1))
+#define DPLL_WORK_NORMAL_MODE		((0x3 << (8 + 16)) | (0 << 8))
+#define DPLL_WORK_SLOW_MODE		((0x3 << (8 + 16)) | (1 << 8))
+#define DPLL_RESET_CONTROL_NORMAL	((0x1 << (5 + 16)) | (0x0 << 5))
+#define DPLL_RESET_CONTROL_RESET	((0x1 << (5 + 16)) | (0x1 << 5))
+
+/* PMU_PWRDN_CON */
+#define PD_PERI_PWRDN_ENABLE		(1 << 13)
+
+#define DDR_PLL_SRC_MASK		0x13
+
+/* DDR_PCTL_TREFI */
+#define DDR_UPD_REF_ENABLE		(0X1u << 31)
+
+uint32_t ddr_get_resume_code_size(void);
+uint32_t ddr_get_resume_data_size(void);
+uint32_t *ddr_get_resume_code_base(void);
+void ddr_reg_save(uint32_t pllpdstat, uint64_t base_addr);
+
+#endif /* DDR_RK3368_H */