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Diffstat (limited to 'plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.c')
-rw-r--r--plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.c479
1 files changed, 479 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 00000000..1c33763f
--- /dev/null
+++ b/plat/rockchip/rk3368/drivers/ddr/ddr_rk3368.c
@@ -0,0 +1,479 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <mmio.h>
+#include <ddr_rk3368.h>
+#include <debug.h>
+#include <platform_def.h>
+#include <pmu.h>
+#include <rk3368_def.h>
+#include <soc.h>
+#include <stdint.h>
+#include <string.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) |
+ (0xFFFF << 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) |
+ (0xFFFF << 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 15:21:20 +0000