arch/arm/mach-rockchip/rk3288/sdram_rk3288.c

   1 /*
   2  * (C) Copyright 2015 Google, Inc
   3  * Copyright 2014 Rockchip Inc.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0
   6  *
   7  * Adapted from coreboot.
   8  */
   9
  10 #include <common.h>
  11 #include <clk.h>
  12 #include <dm.h>
  13 #include <dt-structs.h>
  14 #include <errno.h>
  15 #include <ram.h>
  16 #include <regmap.h>
  17 #include <syscon.h>
  18 #include <asm/io.h>
  19 #include <asm/arch/clock.h>
  20 #include <asm/arch/cru_rk3288.h>
  21 #include <asm/arch/ddr_rk3288.h>
  22 #include <asm/arch/grf_rk3288.h>
  23 #include <asm/arch/pmu_rk3288.h>
  24 #include <asm/arch/sdram.h>
  25 #include <asm/arch/sdram_common.h>
  26 #include <linux/err.h>
  27 #include <power/regulator.h>
  28 #include <power/rk8xx_pmic.h>
  29
  30 DECLARE_GLOBAL_DATA_PTR;
  31
  32 struct chan_info {
  33         struct rk3288_ddr_pctl *pctl;
  34         struct rk3288_ddr_publ *publ;
  35         struct rk3288_msch *msch;
  36 };
  37
  38 struct dram_info {
  39         struct chan_info chan[2];
  40         struct ram_info info;
  41         struct clk ddr_clk;
  42         struct rk3288_cru *cru;
  43         struct rk3288_grf *grf;
  44         struct rk3288_sgrf *sgrf;
  45         struct rk3288_pmu *pmu;
  46         bool is_veyron;
  47 };
  48
  49 struct rk3288_sdram_params {
  50 #if CONFIG_IS_ENABLED(OF_PLATDATA)
  51         struct dtd_rockchip_rk3288_dmc of_plat;
  52 #endif
  53         struct rk3288_sdram_channel ch[2];
  54         struct rk3288_sdram_pctl_timing pctl_timing;
  55         struct rk3288_sdram_phy_timing phy_timing;
  56         struct rk3288_base_params base;
  57         int num_channels;
  58         struct regmap *map;
  59 };
  60
  61 const int ddrconf_table[] = {
  62         /* row      col,bw */
  63         0,
  64         ((1 << DDRCONF_ROW_SHIFT) | 1 << DDRCONF_COL_SHIFT),
  65         ((2 << DDRCONF_ROW_SHIFT) | 1 << DDRCONF_COL_SHIFT),
  66         ((3 << DDRCONF_ROW_SHIFT) | 1 << DDRCONF_COL_SHIFT),
  67         ((4 << DDRCONF_ROW_SHIFT) | 1 << DDRCONF_COL_SHIFT),
  68         ((1 << DDRCONF_ROW_SHIFT) | 2 << DDRCONF_COL_SHIFT),
  69         ((2 << DDRCONF_ROW_SHIFT) | 2 << DDRCONF_COL_SHIFT),
  70         ((3 << DDRCONF_ROW_SHIFT) | 2 << DDRCONF_COL_SHIFT),
  71         ((1 << DDRCONF_ROW_SHIFT) | 0 << DDRCONF_COL_SHIFT),
  72         ((2 << DDRCONF_ROW_SHIFT) | 0 << DDRCONF_COL_SHIFT),
  73         ((3 << DDRCONF_ROW_SHIFT) | 0 << DDRCONF_COL_SHIFT),
  74         0,
  75         0,
  76         0,
  77         0,
  78         ((4 << 4) | 2),
  79 };
  80
  81 #define TEST_PATTEN     0x5aa5f00f
  82 #define DQS_GATE_TRAINING_ERROR_RANK0   (1 << 4)
  83 #define DQS_GATE_TRAINING_ERROR_RANK1   (2 << 4)
  84
  85 #ifdef CONFIG_SPL_BUILD
  86 static void copy_to_reg(u32 *dest, const u32 *src, u32 n)
  87 {
  88         int i;
  89
  90         for (i = 0; i < n / sizeof(u32); i++) {
  91                 writel(*src, dest);
  92                 src++;
  93                 dest++;
  94         }
  95 }
  96
  97 static void ddr_reset(struct rk3288_cru *cru, u32 ch, u32 ctl, u32 phy)
  98 {
  99         u32 phy_ctl_srstn_shift = 4 + 5 * ch;
 100         u32 ctl_psrstn_shift = 3 + 5 * ch;
 101         u32 ctl_srstn_shift = 2 + 5 * ch;
 102         u32 phy_psrstn_shift = 1 + 5 * ch;
 103         u32 phy_srstn_shift = 5 * ch;
 104
 105         rk_clrsetreg(&cru->cru_softrst_con[10],
 106                      1 << phy_ctl_srstn_shift | 1 << ctl_psrstn_shift |
 107                      1 << ctl_srstn_shift | 1 << phy_psrstn_shift |
 108                      1 << phy_srstn_shift,
 109                      phy << phy_ctl_srstn_shift | ctl << ctl_psrstn_shift |
 110                      ctl << ctl_srstn_shift | phy << phy_psrstn_shift |
 111                      phy << phy_srstn_shift);
 112 }
 113
 114 static void ddr_phy_ctl_reset(struct rk3288_cru *cru, u32 ch, u32 n)
 115 {
 116         u32 phy_ctl_srstn_shift = 4 + 5 * ch;
 117
 118         rk_clrsetreg(&cru->cru_softrst_con[10],
 119                      1 << phy_ctl_srstn_shift, n << phy_ctl_srstn_shift);
 120 }
 121
 122 static void phy_pctrl_reset(struct rk3288_cru *cru,
 123                             struct rk3288_ddr_publ *publ,
 124                             int channel)
 125 {
 126         int i;
 127
 128         ddr_reset(cru, channel, 1, 1);
 129         udelay(1);
 130         clrbits_le32(&publ->acdllcr, ACDLLCR_DLLSRST);
 131         for (i = 0; i < 4; i++)
 132                 clrbits_le32(&publ->datx8[i].dxdllcr, DXDLLCR_DLLSRST);
 133
 134         udelay(10);
 135         setbits_le32(&publ->acdllcr, ACDLLCR_DLLSRST);
 136         for (i = 0; i < 4; i++)
 137                 setbits_le32(&publ->datx8[i].dxdllcr, DXDLLCR_DLLSRST);
 138
 139         udelay(10);
 140         ddr_reset(cru, channel, 1, 0);
 141         udelay(10);
 142         ddr_reset(cru, channel, 0, 0);
 143         udelay(10);
 144 }
 145
 146 static void phy_dll_bypass_set(struct rk3288_ddr_publ *publ,
 147         u32 freq)
 148 {
 149         int i;
 150
 151         if (freq <= 250000000) {
 152                 if (freq <= 150000000)
 153                         clrbits_le32(&publ->dllgcr, SBIAS_BYPASS);
 154                 else
 155                         setbits_le32(&publ->dllgcr, SBIAS_BYPASS);
 156                 setbits_le32(&publ->acdllcr, ACDLLCR_DLLDIS);
 157                 for (i = 0; i < 4; i++)
 158                         setbits_le32(&publ->datx8[i].dxdllcr,
 159                                      DXDLLCR_DLLDIS);
 160
 161                 setbits_le32(&publ->pir, PIR_DLLBYP);
 162         } else {
 163                 clrbits_le32(&publ->dllgcr, SBIAS_BYPASS);
 164                 clrbits_le32(&publ->acdllcr, ACDLLCR_DLLDIS);
 165                 for (i = 0; i < 4; i++) {
 166                         clrbits_le32(&publ->datx8[i].dxdllcr,
 167                                      DXDLLCR_DLLDIS);
 168                 }
 169
 170                 clrbits_le32(&publ->pir, PIR_DLLBYP);
 171         }
 172 }
 173
 174 static void dfi_cfg(struct rk3288_ddr_pctl *pctl, u32 dramtype)
 175 {
 176         writel(DFI_INIT_START, &pctl->dfistcfg0);
 177         writel(DFI_DRAM_CLK_SR_EN | DFI_DRAM_CLK_DPD_EN,
 178                &pctl->dfistcfg1);
 179         writel(DFI_PARITY_INTR_EN | DFI_PARITY_EN, &pctl->dfistcfg2);
 180         writel(7 << TLP_RESP_TIME_SHIFT | LP_SR_EN | LP_PD_EN,
 181                &pctl->dfilpcfg0);
 182
 183         writel(2 << TCTRL_DELAY_TIME_SHIFT, &pctl->dfitctrldelay);
 184         writel(1 << TPHY_WRDATA_TIME_SHIFT, &pctl->dfitphywrdata);
 185         writel(0xf << TPHY_RDLAT_TIME_SHIFT, &pctl->dfitphyrdlat);
 186         writel(2 << TDRAM_CLK_DIS_TIME_SHIFT, &pctl->dfitdramclkdis);
 187         writel(2 << TDRAM_CLK_EN_TIME_SHIFT, &pctl->dfitdramclken);
 188         writel(1, &pctl->dfitphyupdtype0);
 189
 190         /* cs0 and cs1 write odt enable */
 191         writel((RANK0_ODT_WRITE_SEL | RANK1_ODT_WRITE_SEL),
 192                &pctl->dfiodtcfg);
 193         /* odt write length */
 194         writel(7 << ODT_LEN_BL8_W_SHIFT, &pctl->dfiodtcfg1);
 195         /* phyupd and ctrlupd disabled */
 196         writel(0, &pctl->dfiupdcfg);
 197 }
 198
 199 static void ddr_set_enable(struct rk3288_grf *grf, uint channel, bool enable)
 200 {
 201         uint val = 0;
 202
 203         if (enable) {
 204                 val = 1 << (channel ? DDR1_16BIT_EN_SHIFT :
 205                                 DDR0_16BIT_EN_SHIFT);
 206         }
 207         rk_clrsetreg(&grf->soc_con0,
 208                      1 << (channel ? DDR1_16BIT_EN_SHIFT : DDR0_16BIT_EN_SHIFT),
 209                      val);
 210 }
 211
 212 static void ddr_set_ddr3_mode(struct rk3288_grf *grf, uint channel,
 213                               bool ddr3_mode)
 214 {
 215         uint mask, val;
 216
 217         mask = 1 << (channel ? MSCH1_MAINDDR3_SHIFT : MSCH0_MAINDDR3_SHIFT);
 218         val = ddr3_mode << (channel ? MSCH1_MAINDDR3_SHIFT :
 219                                         MSCH0_MAINDDR3_SHIFT);
 220         rk_clrsetreg(&grf->soc_con0, mask, val);
 221 }
 222
 223 static void ddr_set_en_bst_odt(struct rk3288_grf *grf, uint channel,
 224                                bool enable, bool enable_bst, bool enable_odt)
 225 {
 226         uint mask;
 227         bool disable_bst = !enable_bst;
 228
 229         mask = channel ?
 230                 (1 << LPDDR3_EN1_SHIFT | 1 << UPCTL1_BST_DIABLE_SHIFT |
 231                         1 << UPCTL1_LPDDR3_ODT_EN_SHIFT) :
 232                 (1 << LPDDR3_EN0_SHIFT | 1 << UPCTL0_BST_DIABLE_SHIFT |
 233                         1 << UPCTL0_LPDDR3_ODT_EN_SHIFT);
 234         rk_clrsetreg(&grf->soc_con2, mask,
 235                      enable << (channel ? LPDDR3_EN1_SHIFT : LPDDR3_EN0_SHIFT) |
 236                      disable_bst << (channel ? UPCTL1_BST_DIABLE_SHIFT :
 237                                 UPCTL0_BST_DIABLE_SHIFT) |
 238                      enable_odt << (channel ? UPCTL1_LPDDR3_ODT_EN_SHIFT :
 239                                 UPCTL0_LPDDR3_ODT_EN_SHIFT));
 240 }
 241
 242 static void pctl_cfg(int channel, struct rk3288_ddr_pctl *pctl,
 243                      struct rk3288_sdram_params *sdram_params,
 244                      struct rk3288_grf *grf)
 245 {
 246         unsigned int burstlen;
 247
 248         burstlen = (sdram_params->base.noc_timing >> 18) & 0x7;
 249         copy_to_reg(&pctl->togcnt1u, &sdram_params->pctl_timing.togcnt1u,
 250                     sizeof(sdram_params->pctl_timing));
 251         switch (sdram_params->base.dramtype) {
 252         case LPDDR3:
 253                 writel(sdram_params->pctl_timing.tcl - 1,
 254                        &pctl->dfitrddataen);
 255                 writel(sdram_params->pctl_timing.tcwl,
 256                        &pctl->dfitphywrlat);
 257                 burstlen >>= 1;
 258                 writel(LPDDR2_S4 | 0 << MDDR_LPDDR2_CLK_STOP_IDLE_SHIFT |
 259                        LPDDR2_EN | burstlen << BURSTLENGTH_SHIFT |
 260                        (6 - 4) << TFAW_SHIFT | PD_EXIT_FAST |
 261                        1 << PD_TYPE_SHIFT | 0 << PD_IDLE_SHIFT,
 262                        &pctl->mcfg);
 263                 ddr_set_ddr3_mode(grf, channel, false);
 264                 ddr_set_enable(grf, channel, true);
 265                 ddr_set_en_bst_odt(grf, channel, true, false,
 266                                    sdram_params->base.odt);
 267                 break;
 268         case DDR3:
 269                 if (sdram_params->phy_timing.mr[1] & DDR3_DLL_DISABLE) {
 270                         writel(sdram_params->pctl_timing.tcl - 3,
 271                                &pctl->dfitrddataen);
 272                 } else {
 273                         writel(sdram_params->pctl_timing.tcl - 2,
 274                                &pctl->dfitrddataen);
 275                 }
 276                 writel(sdram_params->pctl_timing.tcwl - 1,
 277                        &pctl->dfitphywrlat);
 278                 writel(0 << MDDR_LPDDR2_CLK_STOP_IDLE_SHIFT | DDR3_EN |
 279                        DDR2_DDR3_BL_8 | (6 - 4) << TFAW_SHIFT | PD_EXIT_SLOW |
 280                        1 << PD_TYPE_SHIFT | 0 << PD_IDLE_SHIFT,
 281                        &pctl->mcfg);
 282                 ddr_set_ddr3_mode(grf, channel, true);
 283                 ddr_set_enable(grf, channel, true);
 284
 285                 ddr_set_en_bst_odt(grf, channel, false, true, false);
 286                 break;
 287         }
 288
 289         setbits_le32(&pctl->scfg, 1);
 290 }
 291
 292 static void phy_cfg(const struct chan_info *chan, int channel,
 293                     struct rk3288_sdram_params *sdram_params)
 294 {
 295         struct rk3288_ddr_publ *publ = chan->publ;
 296         struct rk3288_msch *msch = chan->msch;
 297         uint ddr_freq_mhz = sdram_params->base.ddr_freq / 1000000;
 298         u32 dinit2, tmp;
 299         int i;
 300
 301         dinit2 = DIV_ROUND_UP(ddr_freq_mhz * 200000, 1000);
 302         /* DDR PHY Timing */
 303         copy_to_reg(&publ->dtpr[0], &sdram_params->phy_timing.dtpr0,
 304                     sizeof(sdram_params->phy_timing));
 305         writel(sdram_params->base.noc_timing, &msch->ddrtiming);
 306         writel(0x3f, &msch->readlatency);
 307         writel(sdram_params->base.noc_activate, &msch->activate);
 308         writel(2 << BUSWRTORD_SHIFT | 2 << BUSRDTOWR_SHIFT |
 309                1 << BUSRDTORD_SHIFT, &msch->devtodev);
 310         writel(DIV_ROUND_UP(ddr_freq_mhz * 5120, 1000) << PRT_DLLLOCK_SHIFT |
 311                DIV_ROUND_UP(ddr_freq_mhz * 50, 1000) << PRT_DLLSRST_SHIFT |
 312                8 << PRT_ITMSRST_SHIFT, &publ->ptr[0]);
 313         writel(DIV_ROUND_UP(ddr_freq_mhz * 500000, 1000) << PRT_DINIT0_SHIFT |
 314                DIV_ROUND_UP(ddr_freq_mhz * 400, 1000) << PRT_DINIT1_SHIFT,
 315                &publ->ptr[1]);
 316         writel(min(dinit2, 0x1ffffU) << PRT_DINIT2_SHIFT |
 317                DIV_ROUND_UP(ddr_freq_mhz * 1000, 1000) << PRT_DINIT3_SHIFT,
 318                &publ->ptr[2]);
 319
 320         switch (sdram_params->base.dramtype) {
 321         case LPDDR3:
 322                 clrsetbits_le32(&publ->pgcr, 0x1F,
 323                                 0 << PGCR_DFTLMT_SHIFT |
 324                                 0 << PGCR_DFTCMP_SHIFT |
 325                                 1 << PGCR_DQSCFG_SHIFT |
 326                                 0 << PGCR_ITMDMD_SHIFT);
 327                 /* DDRMODE select LPDDR3 */
 328                 clrsetbits_le32(&publ->dcr, DDRMD_MASK << DDRMD_SHIFT,
 329                                 DDRMD_LPDDR2_LPDDR3 << DDRMD_SHIFT);
 330                 clrsetbits_le32(&publ->dxccr,
 331                                 DQSNRES_MASK << DQSNRES_SHIFT |
 332                                 DQSRES_MASK << DQSRES_SHIFT,
 333                                 4 << DQSRES_SHIFT | 0xc << DQSNRES_SHIFT);
 334                 tmp = readl(&publ->dtpr[1]);
 335                 tmp = ((tmp >> TDQSCKMAX_SHIFT) & TDQSCKMAX_MASK) -
 336                         ((tmp >> TDQSCK_SHIFT) & TDQSCK_MASK);
 337                 clrsetbits_le32(&publ->dsgcr,
 338                                 DQSGE_MASK << DQSGE_SHIFT |
 339                                 DQSGX_MASK << DQSGX_SHIFT,
 340                                 tmp << DQSGE_SHIFT | tmp << DQSGX_SHIFT);
 341                 break;
 342         case DDR3:
 343                 clrbits_le32(&publ->pgcr, 0x1f);
 344                 clrsetbits_le32(&publ->dcr, DDRMD_MASK << DDRMD_SHIFT,
 345                                 DDRMD_DDR3 << DDRMD_SHIFT);
 346                 break;
 347         }
 348         if (sdram_params->base.odt) {
 349                 /*dynamic RTT enable */
 350                 for (i = 0; i < 4; i++)
 351                         setbits_le32(&publ->datx8[i].dxgcr, DQSRTT | DQRTT);
 352         } else {
 353                 /*dynamic RTT disable */
 354                 for (i = 0; i < 4; i++)
 355                         clrbits_le32(&publ->datx8[i].dxgcr, DQSRTT | DQRTT);
 356         }
 357 }
 358
 359 static void phy_init(struct rk3288_ddr_publ *publ)
 360 {
 361         setbits_le32(&publ->pir, PIR_INIT | PIR_DLLSRST
 362                 | PIR_DLLLOCK | PIR_ZCAL | PIR_ITMSRST | PIR_CLRSR);
 363         udelay(1);
 364         while ((readl(&publ->pgsr) &
 365                 (PGSR_IDONE | PGSR_DLDONE | PGSR_ZCDONE)) !=
 366                 (PGSR_IDONE | PGSR_DLDONE | PGSR_ZCDONE))
 367                 ;
 368 }
 369
 370 static void send_command(struct rk3288_ddr_pctl *pctl, u32 rank,
 371                          u32 cmd, u32 arg)
 372 {
 373         writel((START_CMD | (rank << 20) | arg | cmd), &pctl->mcmd);
 374         udelay(1);
 375         while (readl(&pctl->mcmd) & START_CMD)
 376                 ;
 377 }
 378
 379 static inline void send_command_op(struct rk3288_ddr_pctl *pctl,
 380                                    u32 rank, u32 cmd, u32 ma, u32 op)
 381 {
 382         send_command(pctl, rank, cmd, (ma & LPDDR2_MA_MASK) << LPDDR2_MA_SHIFT |
 383                      (op & LPDDR2_OP_MASK) << LPDDR2_OP_SHIFT);
 384 }
 385
 386 static void memory_init(struct rk3288_ddr_publ *publ,
 387                         u32 dramtype)
 388 {
 389         setbits_le32(&publ->pir,
 390                      (PIR_INIT | PIR_DRAMINIT | PIR_LOCKBYP
 391                       | PIR_ZCALBYP | PIR_CLRSR | PIR_ICPC
 392                       | (dramtype == DDR3 ? PIR_DRAMRST : 0)));
 393         udelay(1);
 394         while ((readl(&publ->pgsr) & (PGSR_IDONE | PGSR_DLDONE))
 395                 != (PGSR_IDONE | PGSR_DLDONE))
 396                 ;
 397 }
 398
 399 static void move_to_config_state(struct rk3288_ddr_publ *publ,
 400                                  struct rk3288_ddr_pctl *pctl)
 401 {
 402         unsigned int state;
 403
 404         while (1) {
 405                 state = readl(&pctl->stat) & PCTL_STAT_MSK;
 406
 407                 switch (state) {
 408                 case LOW_POWER:
 409                         writel(WAKEUP_STATE, &pctl->sctl);
 410                         while ((readl(&pctl->stat) & PCTL_STAT_MSK)
 411                                 != ACCESS)
 412                                 ;
 413                         /* wait DLL lock */
 414                         while ((readl(&publ->pgsr) & PGSR_DLDONE)
 415                                 != PGSR_DLDONE)
 416                                 ;
 417                         /*
 418                          * if at low power state,need wakeup first,
 419                          * and then enter the config
 420                          * so here no break.
 421                          */
 422                 case ACCESS:
 423                         /* no break */
 424                 case INIT_MEM:
 425                         writel(CFG_STATE, &pctl->sctl);
 426                         while ((readl(&pctl->stat) & PCTL_STAT_MSK) != CONFIG)
 427                                 ;
 428                         break;
 429                 case CONFIG:
 430                         return;
 431                 default:
 432                         break;
 433                 }
 434         }
 435 }
 436
 437 static void set_bandwidth_ratio(const struct chan_info *chan, int channel,
 438                                 u32 n, struct rk3288_grf *grf)
 439 {
 440         struct rk3288_ddr_pctl *pctl = chan->pctl;
 441         struct rk3288_ddr_publ *publ = chan->publ;
 442         struct rk3288_msch *msch = chan->msch;
 443
 444         if (n == 1) {
 445                 setbits_le32(&pctl->ppcfg, 1);
 446                 rk_setreg(&grf->soc_con0, 1 << (8 + channel));
 447                 setbits_le32(&msch->ddrtiming, 1 << 31);
 448                 /* Data Byte disable*/
 449                 clrbits_le32(&publ->datx8[2].dxgcr, 1);
 450                 clrbits_le32(&publ->datx8[3].dxgcr, 1);
 451                 /* disable DLL */
 452                 setbits_le32(&publ->datx8[2].dxdllcr, DXDLLCR_DLLDIS);
 453                 setbits_le32(&publ->datx8[3].dxdllcr, DXDLLCR_DLLDIS);
 454         } else {
 455                 clrbits_le32(&pctl->ppcfg, 1);
 456                 rk_clrreg(&grf->soc_con0, 1 << (8 + channel));
 457                 clrbits_le32(&msch->ddrtiming, 1 << 31);
 458                 /* Data Byte enable*/
 459                 setbits_le32(&publ->datx8[2].dxgcr, 1);
 460                 setbits_le32(&publ->datx8[3].dxgcr, 1);
 461
 462                 /* enable DLL */
 463                 clrbits_le32(&publ->datx8[2].dxdllcr, DXDLLCR_DLLDIS);
 464                 clrbits_le32(&publ->datx8[3].dxdllcr, DXDLLCR_DLLDIS);
 465                 /* reset DLL */
 466                 clrbits_le32(&publ->datx8[2].dxdllcr, DXDLLCR_DLLSRST);
 467                 clrbits_le32(&publ->datx8[3].dxdllcr, DXDLLCR_DLLSRST);
 468                 udelay(10);
 469                 setbits_le32(&publ->datx8[2].dxdllcr, DXDLLCR_DLLSRST);
 470                 setbits_le32(&publ->datx8[3].dxdllcr, DXDLLCR_DLLSRST);
 471         }
 472         setbits_le32(&pctl->dfistcfg0, 1 << 2);
 473 }
 474
 475 static int data_training(const struct chan_info *chan, int channel,
 476                          struct rk3288_sdram_params *sdram_params)
 477 {
 478         unsigned int j;
 479         int ret = 0;
 480         u32 rank;
 481         int i;
 482         u32 step[2] = { PIR_QSTRN, PIR_RVTRN };
 483         struct rk3288_ddr_publ *publ = chan->publ;
 484         struct rk3288_ddr_pctl *pctl = chan->pctl;
 485
 486         /* disable auto refresh */
 487         writel(0, &pctl->trefi);
 488
 489         if (sdram_params->base.dramtype != LPDDR3)
 490                 setbits_le32(&publ->pgcr, 1 << PGCR_DQSCFG_SHIFT);
 491         rank = sdram_params->ch[channel].rank | 1;
 492         for (j = 0; j < ARRAY_SIZE(step); j++) {
 493                 /*
 494                  * trigger QSTRN and RVTRN
 495                  * clear DTDONE status
 496                  */
 497                 setbits_le32(&publ->pir, PIR_CLRSR);
 498
 499                 /* trigger DTT */
 500                 setbits_le32(&publ->pir,
 501                              PIR_INIT | step[j] | PIR_LOCKBYP | PIR_ZCALBYP |
 502                              PIR_CLRSR);
 503                 udelay(1);
 504                 /* wait echo byte DTDONE */
 505                 while ((readl(&publ->datx8[0].dxgsr[0]) & rank)
 506                         != rank)
 507                         ;
 508                 while ((readl(&publ->datx8[1].dxgsr[0]) & rank)
 509                         != rank)
 510                         ;
 511                 if (!(readl(&pctl->ppcfg) & 1)) {
 512                         while ((readl(&publ->datx8[2].dxgsr[0])
 513                                 & rank) != rank)
 514                                 ;
 515                         while ((readl(&publ->datx8[3].dxgsr[0])
 516                                 & rank) != rank)
 517                                 ;
 518                 }
 519                 if (readl(&publ->pgsr) &
 520                     (PGSR_DTERR | PGSR_RVERR | PGSR_RVEIRR)) {
 521                         ret = -1;
 522                         break;
 523                 }
 524         }
 525         /* send some auto refresh to complement the lost while DTT */
 526         for (i = 0; i < (rank > 1 ? 8 : 4); i++)
 527                 send_command(pctl, rank, REF_CMD, 0);
 528
 529         if (sdram_params->base.dramtype != LPDDR3)
 530                 clrbits_le32(&publ->pgcr, 1 << PGCR_DQSCFG_SHIFT);
 531
 532         /* resume auto refresh */
 533         writel(sdram_params->pctl_timing.trefi, &pctl->trefi);
 534
 535         return ret;
 536 }
 537
 538 static void move_to_access_state(const struct chan_info *chan)
 539 {
 540         struct rk3288_ddr_publ *publ = chan->publ;
 541         struct rk3288_ddr_pctl *pctl = chan->pctl;
 542         unsigned int state;
 543
 544         while (1) {
 545                 state = readl(&pctl->stat) & PCTL_STAT_MSK;
 546
 547                 switch (state) {
 548                 case LOW_POWER:
 549                         if (((readl(&pctl->stat) >> LP_TRIG_SHIFT) &
 550                                         LP_TRIG_MASK) == 1)
 551                                 return;
 552
 553                         writel(WAKEUP_STATE, &pctl->sctl);
 554                         while ((readl(&pctl->stat) & PCTL_STAT_MSK) != ACCESS)
 555                                 ;
 556                         /* wait DLL lock */
 557                         while ((readl(&publ->pgsr) & PGSR_DLDONE)
 558                                 != PGSR_DLDONE)
 559                                 ;
 560                         break;
 561                 case INIT_MEM:
 562                         writel(CFG_STATE, &pctl->sctl);
 563                         while ((readl(&pctl->stat) & PCTL_STAT_MSK) != CONFIG)
 564                                 ;
 565                 case CONFIG:
 566                         writel(GO_STATE, &pctl->sctl);
 567                         while ((readl(&pctl->stat) & PCTL_STAT_MSK) == CONFIG)
 568                                 ;
 569                         break;
 570                 case ACCESS:
 571                         return;
 572                 default:
 573                         break;
 574                 }
 575         }
 576 }
 577
 578 static void dram_cfg_rbc(const struct chan_info *chan, u32 chnum,
 579                          struct rk3288_sdram_params *sdram_params)
 580 {
 581         struct rk3288_ddr_publ *publ = chan->publ;
 582
 583         if (sdram_params->ch[chnum].bk == 3)
 584                 clrsetbits_le32(&publ->dcr, PDQ_MASK << PDQ_SHIFT,
 585                                 1 << PDQ_SHIFT);
 586         else
 587                 clrbits_le32(&publ->dcr, PDQ_MASK << PDQ_SHIFT);
 588
 589         writel(sdram_params->base.ddrconfig, &chan->msch->ddrconf);
 590 }
 591
 592 static void dram_all_config(const struct dram_info *dram,
 593                             struct rk3288_sdram_params *sdram_params)
 594 {
 595         unsigned int chan;
 596         u32 sys_reg = 0;
 597
 598         sys_reg |= sdram_params->base.dramtype << SYS_REG_DDRTYPE_SHIFT;
 599         sys_reg |= (sdram_params->num_channels - 1) << SYS_REG_NUM_CH_SHIFT;
 600         for (chan = 0; chan < sdram_params->num_channels; chan++) {
 601                 const struct rk3288_sdram_channel *info =
 602                         &sdram_params->ch[chan];
 603
 604                 sys_reg |= info->row_3_4 << SYS_REG_ROW_3_4_SHIFT(chan);
 605                 sys_reg |= 1 << SYS_REG_CHINFO_SHIFT(chan);
 606                 sys_reg |= (info->rank - 1) << SYS_REG_RANK_SHIFT(chan);
 607                 sys_reg |= (info->col - 9) << SYS_REG_COL_SHIFT(chan);
 608                 sys_reg |= info->bk == 3 ? 0 : 1 << SYS_REG_BK_SHIFT(chan);
 609                 sys_reg |= (info->cs0_row - 13) << SYS_REG_CS0_ROW_SHIFT(chan);
 610                 sys_reg |= (info->cs1_row - 13) << SYS_REG_CS1_ROW_SHIFT(chan);
 611                 sys_reg |= (2 >> info->bw) << SYS_REG_BW_SHIFT(chan);
 612                 sys_reg |= (2 >> info->dbw) << SYS_REG_DBW_SHIFT(chan);
 613
 614                 dram_cfg_rbc(&dram->chan[chan], chan, sdram_params);
 615         }
 616         writel(sys_reg, &dram->pmu->sys_reg[2]);
 617         rk_clrsetreg(&dram->sgrf->soc_con2, 0x1f, sdram_params->base.stride);
 618 }
 619
 620 static int sdram_rank_bw_detect(struct dram_info *dram, int channel,
 621                 struct rk3288_sdram_params *sdram_params)
 622 {
 623         int reg;
 624         int need_trainig = 0;
 625         const struct chan_info *chan = &dram->chan[channel];
 626         struct rk3288_ddr_publ *publ = chan->publ;
 627
 628         if (data_training(chan, channel, sdram_params) < 0) {
 629                 reg = readl(&publ->datx8[0].dxgsr[0]);
 630                 /* Check the result for rank 0 */
 631                 if ((channel == 0) && (reg & DQS_GATE_TRAINING_ERROR_RANK0)) {
 632                         debug("data training fail!\n");
 633                         return -EIO;
 634                 } else if ((channel == 1) &&
 635                            (reg & DQS_GATE_TRAINING_ERROR_RANK0)) {
 636                         sdram_params->num_channels = 1;
 637                 }
 638
 639                 /* Check the result for rank 1 */
 640                 if (reg & DQS_GATE_TRAINING_ERROR_RANK1) {
 641                         sdram_params->ch[channel].rank = 1;
 642                         clrsetbits_le32(&publ->pgcr, 0xF << 18,
 643                                         sdram_params->ch[channel].rank << 18);
 644                         need_trainig = 1;
 645                 }
 646                 reg = readl(&publ->datx8[2].dxgsr[0]);
 647                 if (reg & (1 << 4)) {
 648                         sdram_params->ch[channel].bw = 1;
 649                         set_bandwidth_ratio(chan, channel,
 650                                             sdram_params->ch[channel].bw,
 651                                             dram->grf);
 652                         need_trainig = 1;
 653                 }
 654         }
 655         /* Assume the Die bit width are the same with the chip bit width */
 656         sdram_params->ch[channel].dbw = sdram_params->ch[channel].bw;
 657
 658         if (need_trainig &&
 659             (data_training(chan, channel, sdram_params) < 0)) {
 660                 if (sdram_params->base.dramtype == LPDDR3) {
 661                         ddr_phy_ctl_reset(dram->cru, channel, 1);
 662                         udelay(10);
 663                         ddr_phy_ctl_reset(dram->cru, channel, 0);
 664                         udelay(10);
 665                 }
 666                 debug("2nd data training failed!");
 667                 return -EIO;
 668         }
 669
 670         return 0;
 671 }
 672
 673 static int sdram_col_row_detect(struct dram_info *dram, int channel,
 674                 struct rk3288_sdram_params *sdram_params)
 675 {
 676         int row, col;
 677         unsigned int addr;
 678         const struct chan_info *chan = &dram->chan[channel];
 679         struct rk3288_ddr_pctl *pctl = chan->pctl;
 680         struct rk3288_ddr_publ *publ = chan->publ;
 681         int ret = 0;
 682
 683         /* Detect col */
 684         for (col = 11; col >= 9; col--) {
 685                 writel(0, CONFIG_SYS_SDRAM_BASE);
 686                 addr = CONFIG_SYS_SDRAM_BASE +
 687                         (1 << (col + sdram_params->ch[channel].bw - 1));
 688                 writel(TEST_PATTEN, addr);
 689                 if ((readl(addr) == TEST_PATTEN) &&
 690                     (readl(CONFIG_SYS_SDRAM_BASE) == 0))
 691                         break;
 692         }
 693         if (col == 8) {
 694                 printf("Col detect error\n");
 695                 ret = -EINVAL;
 696                 goto out;
 697         } else {
 698                 sdram_params->ch[channel].col = col;
 699         }
 700
 701         move_to_config_state(publ, pctl);
 702         writel(4, &chan->msch->ddrconf);
 703         move_to_access_state(chan);
 704         /* Detect row*/
 705         for (row = 16; row >= 12; row--) {
 706                 writel(0, CONFIG_SYS_SDRAM_BASE);
 707                 addr = CONFIG_SYS_SDRAM_BASE + (1 << (row + 15 - 1));
 708                 writel(TEST_PATTEN, addr);
 709                 if ((readl(addr) == TEST_PATTEN) &&
 710                     (readl(CONFIG_SYS_SDRAM_BASE) == 0))
 711                         break;
 712         }
 713         if (row == 11) {
 714                 printf("Row detect error\n");
 715                 ret = -EINVAL;
 716         } else {
 717                 sdram_params->ch[channel].cs1_row = row;
 718                 sdram_params->ch[channel].row_3_4 = 0;
 719                 debug("chn %d col %d, row %d\n", channel, col, row);
 720                 sdram_params->ch[channel].cs0_row = row;
 721         }
 722
 723 out:
 724         return ret;
 725 }
 726
 727 static int sdram_get_niu_config(struct rk3288_sdram_params *sdram_params)
 728 {
 729         int i, tmp, size, ret = 0;
 730
 731         tmp = sdram_params->ch[0].col - 9;
 732         tmp -= (sdram_params->ch[0].bw == 2) ? 0 : 1;
 733         tmp |= ((sdram_params->ch[0].cs0_row - 12) << 4);
 734         size = sizeof(ddrconf_table)/sizeof(ddrconf_table[0]);
 735         for (i = 0; i < size; i++)
 736                 if (tmp == ddrconf_table[i])
 737                         break;
 738         if (i >= size) {
 739                 printf("niu config not found\n");
 740                 ret = -EINVAL;
 741         } else {
 742                 sdram_params->base.ddrconfig = i;
 743         }
 744
 745         return ret;
 746 }
 747
 748 static int sdram_get_stride(struct rk3288_sdram_params *sdram_params)
 749 {
 750         int stride = -1;
 751         int ret = 0;
 752         long cap = sdram_params->num_channels * (1u <<
 753                         (sdram_params->ch[0].cs0_row +
 754                          sdram_params->ch[0].col +
 755                          (sdram_params->ch[0].rank - 1) +
 756                          sdram_params->ch[0].bw +
 757                          3 - 20));
 758
 759         switch (cap) {
 760         case 512:
 761                 stride = 0;
 762                 break;
 763         case 1024:
 764                 stride = 5;
 765                 break;
 766         case 2048:
 767                 stride = 9;
 768                 break;
 769         case 4096:
 770                 stride = 0xd;
 771                 break;
 772         default:
 773                 stride = -1;
 774                 printf("could not find correct stride, cap error!\n");
 775                 ret = -EINVAL;
 776                 break;
 777         }
 778         sdram_params->base.stride = stride;
 779
 780         return ret;
 781 }
 782
 783 static int sdram_init(struct dram_info *dram,
 784                       struct rk3288_sdram_params *sdram_params)
 785 {
 786         int channel;
 787         int zqcr;
 788         int ret;
 789
 790         debug("%s start\n", __func__);
 791         if ((sdram_params->base.dramtype == DDR3 &&
 792              sdram_params->base.ddr_freq > 800000000) ||
 793             (sdram_params->base.dramtype == LPDDR3 &&
 794              sdram_params->base.ddr_freq > 533000000)) {
 795                 debug("SDRAM frequency is too high!");
 796                 return -E2BIG;
 797         }
 798
 799         debug("ddr clk dpll\n");
 800         ret = clk_set_rate(&dram->ddr_clk, sdram_params->base.ddr_freq);
 801         debug("ret=%d\n", ret);
 802         if (ret) {
 803                 debug("Could not set DDR clock\n");
 804                 return ret;
 805         }
 806
 807         for (channel = 0; channel < 2; channel++) {
 808                 const struct chan_info *chan = &dram->chan[channel];
 809                 struct rk3288_ddr_pctl *pctl = chan->pctl;
 810                 struct rk3288_ddr_publ *publ = chan->publ;
 811
 812                 /* map all the 4GB space to the current channel */
 813                 if (channel)
 814                         rk_clrsetreg(&dram->sgrf->soc_con2, 0x1f, 0x17);
 815                 else
 816                         rk_clrsetreg(&dram->sgrf->soc_con2, 0x1f, 0x1a);
 817                 phy_pctrl_reset(dram->cru, publ, channel);
 818                 phy_dll_bypass_set(publ, sdram_params->base.ddr_freq);
 819
 820                 dfi_cfg(pctl, sdram_params->base.dramtype);
 821
 822                 pctl_cfg(channel, pctl, sdram_params, dram->grf);
 823
 824                 phy_cfg(chan, channel, sdram_params);
 825
 826                 phy_init(publ);
 827
 828                 writel(POWER_UP_START, &pctl->powctl);
 829                 while (!(readl(&pctl->powstat) & POWER_UP_DONE))
 830                         ;
 831
 832                 memory_init(publ, sdram_params->base.dramtype);
 833                 move_to_config_state(publ, pctl);
 834
 835                 if (sdram_params->base.dramtype == LPDDR3) {
 836                         send_command(pctl, 3, DESELECT_CMD, 0);
 837                         udelay(1);
 838                         send_command(pctl, 3, PREA_CMD, 0);
 839                         udelay(1);
 840                         send_command_op(pctl, 3, MRS_CMD, 63, 0xfc);
 841                         udelay(1);
 842                         send_command_op(pctl, 3, MRS_CMD, 1,
 843                                         sdram_params->phy_timing.mr[1]);
 844                         udelay(1);
 845                         send_command_op(pctl, 3, MRS_CMD, 2,
 846                                         sdram_params->phy_timing.mr[2]);
 847                         udelay(1);
 848                         send_command_op(pctl, 3, MRS_CMD, 3,
 849                                         sdram_params->phy_timing.mr[3]);
 850                         udelay(1);
 851                 }
 852
 853                 /* Using 32bit bus width for detect */
 854                 sdram_params->ch[channel].bw = 2;
 855                 set_bandwidth_ratio(chan, channel,
 856                                     sdram_params->ch[channel].bw, dram->grf);
 857                 /*
 858                  * set cs, using n=3 for detect
 859                  * CS0, n=1
 860                  * CS1, n=2
 861                  * CS0 & CS1, n = 3
 862                  */
 863                 sdram_params->ch[channel].rank = 2,
 864                 clrsetbits_le32(&publ->pgcr, 0xF << 18,
 865                                 (sdram_params->ch[channel].rank | 1) << 18);
 866
 867                 /* DS=40ohm,ODT=155ohm */
 868                 zqcr = 1 << ZDEN_SHIFT | 2 << PU_ONDIE_SHIFT |
 869                         2 << PD_ONDIE_SHIFT | 0x19 << PU_OUTPUT_SHIFT |
 870                         0x19 << PD_OUTPUT_SHIFT;
 871                 writel(zqcr, &publ->zq1cr[0]);
 872                 writel(zqcr, &publ->zq0cr[0]);
 873
 874                 if (sdram_params->base.dramtype == LPDDR3) {
 875                         /* LPDDR2/LPDDR3 need to wait DAI complete, max 10us */
 876                         udelay(10);
 877                         send_command_op(pctl,
 878                                         sdram_params->ch[channel].rank | 1,
 879                                         MRS_CMD, 11,
 880                                         sdram_params->base.odt ? 3 : 0);
 881                         if (channel == 0) {
 882                                 writel(0, &pctl->mrrcfg0);
 883                                 send_command_op(pctl, 1, MRR_CMD, 8, 0);
 884                                 /* S8 */
 885                                 if ((readl(&pctl->mrrstat0) & 0x3) != 3) {
 886                                         debug("failed!");
 887                                         return -EREMOTEIO;
 888                                 }
 889                         }
 890                 }
 891
 892                 /* Detect the rank and bit-width with data-training */
 893                 sdram_rank_bw_detect(dram, channel, sdram_params);
 894
 895                 if (sdram_params->base.dramtype == LPDDR3) {
 896                         u32 i;
 897                         writel(0, &pctl->mrrcfg0);
 898                         for (i = 0; i < 17; i++)
 899                                 send_command_op(pctl, 1, MRR_CMD, i, 0);
 900                 }
 901                 writel(15, &chan->msch->ddrconf);
 902                 move_to_access_state(chan);
 903                 /* DDR3 and LPDDR3 are always 8 bank, no need detect */
 904                 sdram_params->ch[channel].bk = 3;
 905                 /* Detect Col and Row number*/
 906                 ret = sdram_col_row_detect(dram, channel, sdram_params);
 907                 if (ret)
 908                         goto error;
 909         }
 910         /* Find NIU DDR configuration */
 911         ret = sdram_get_niu_config(sdram_params);
 912         if (ret)
 913                 goto error;
 914         /* Find stride setting */
 915         ret = sdram_get_stride(sdram_params);
 916         if (ret)
 917                 goto error;
 918
 919         dram_all_config(dram, sdram_params);
 920         debug("%s done\n", __func__);
 921
 922         return 0;
 923 error:
 924         printf("DRAM init failed!\n");
 925         hang();
 926 }
 927
 928 # ifdef CONFIG_ROCKCHIP_FAST_SPL
 929 static int veyron_init(struct dram_info *priv)
 930 {
 931         struct udevice *pmic;
 932         int ret;
 933
 934         ret = uclass_first_device_err(UCLASS_PMIC, &pmic);
 935         if (ret)
 936                 return ret;
 937
 938         /* Slowly raise to max CPU voltage to prevent overshoot */
 939         ret = rk8xx_spl_configure_buck(pmic, 1, 1200000);
 940         if (ret)
 941                 return ret;
 942         udelay(175);/* Must wait for voltage to stabilize, 2mV/us */
 943         ret = rk8xx_spl_configure_buck(pmic, 1, 1400000);
 944         if (ret)
 945                 return ret;
 946         udelay(100);/* Must wait for voltage to stabilize, 2mV/us */
 947
 948         rk3288_clk_configure_cpu(priv->cru, priv->grf);
 949
 950         return 0;
 951 }
 952 # endif
 953
 954 static int setup_sdram(struct udevice *dev)
 955 {
 956         struct dram_info *priv = dev_get_priv(dev);
 957         struct rk3288_sdram_params *params = dev_get_platdata(dev);
 958
 959 # ifdef CONFIG_ROCKCHIP_FAST_SPL
 960         if (priv->is_veyron) {
 961                 int ret;
 962
 963                 ret = veyron_init(priv);
 964                 if (ret)
 965                         return ret;
 966         }
 967 # endif
 968
 969         return sdram_init(priv, params);
 970 }
 971
 972 static int rk3288_dmc_ofdata_to_platdata(struct udevice *dev)
 973 {
 974 #if !CONFIG_IS_ENABLED(OF_PLATDATA)
 975         struct rk3288_sdram_params *params = dev_get_platdata(dev);
 976         int ret;
 977
 978         /* Rk3288 supports dual-channel, set default channel num to 2 */
 979         params->num_channels = 2;
 980         ret = dev_read_u32_array(dev, "rockchip,pctl-timing",
 981                                  (u32 *)&params->pctl_timing,
 982                                  sizeof(params->pctl_timing) / sizeof(u32));
 983         if (ret) {
 984                 debug("%s: Cannot read rockchip,pctl-timing\n", __func__);
 985                 return -EINVAL;
 986         }
 987         ret = dev_read_u32_array(dev, "rockchip,phy-timing",
 988                                  (u32 *)&params->phy_timing,
 989                                  sizeof(params->phy_timing) / sizeof(u32));
 990         if (ret) {
 991                 debug("%s: Cannot read rockchip,phy-timing\n", __func__);
 992                 return -EINVAL;
 993         }
 994         ret = dev_read_u32_array(dev, "rockchip,sdram-params",
 995                                  (u32 *)&params->base,
 996                                  sizeof(params->base) / sizeof(u32));
 997         if (ret) {
 998                 debug("%s: Cannot read rockchip,sdram-params\n", __func__);
 999                 return -EINVAL;
1000         }
1001 #ifdef CONFIG_ROCKCHIP_FAST_SPL
1002         struct dram_info *priv = dev_get_priv(dev);
1003
1004         priv->is_veyron = !fdt_node_check_compatible(blob, 0, "google,veyron");
1005 #endif
1006         ret = regmap_init_mem(dev, &params->map);
1007         if (ret)
1008                 return ret;
1009 #endif
1010
1011         return 0;
1012 }
1013 #endif /* CONFIG_SPL_BUILD */
1014
1015 #if CONFIG_IS_ENABLED(OF_PLATDATA)
1016 static int conv_of_platdata(struct udevice *dev)
1017 {
1018         struct rk3288_sdram_params *plat = dev_get_platdata(dev);
1019         struct dtd_rockchip_rk3288_dmc *of_plat = &plat->of_plat;
1020         int ret;
1021
1022         memcpy(&plat->pctl_timing, of_plat->rockchip_pctl_timing,
1023                sizeof(plat->pctl_timing));
1024         memcpy(&plat->phy_timing, of_plat->rockchip_phy_timing,
1025                sizeof(plat->phy_timing));
1026         memcpy(&plat->base, of_plat->rockchip_sdram_params, sizeof(plat->base));
1027         /* Rk3288 supports dual-channel, set default channel num to 2 */
1028         plat->num_channels = 2;
1029         ret = regmap_init_mem_platdata(dev, of_plat->reg,
1030                                        ARRAY_SIZE(of_plat->reg) / 2,
1031                                        &plat->map);
1032         if (ret)
1033                 return ret;
1034
1035         return 0;
1036 }
1037 #endif
1038
1039 static int rk3288_dmc_probe(struct udevice *dev)
1040 {
1041 #ifdef CONFIG_SPL_BUILD
1042         struct rk3288_sdram_params *plat = dev_get_platdata(dev);
1043         struct udevice *dev_clk;
1044         struct regmap *map;
1045         int ret;
1046 #endif
1047         struct dram_info *priv = dev_get_priv(dev);
1048
1049         priv->pmu = syscon_get_first_range(ROCKCHIP_SYSCON_PMU);
1050 #ifdef CONFIG_SPL_BUILD
1051 #if CONFIG_IS_ENABLED(OF_PLATDATA)
1052         ret = conv_of_platdata(dev);
1053         if (ret)
1054                 return ret;
1055 #endif
1056         map = syscon_get_regmap_by_driver_data(ROCKCHIP_SYSCON_NOC);
1057         if (IS_ERR(map))
1058                 return PTR_ERR(map);
1059         priv->chan[0].msch = regmap_get_range(map, 0);
1060         priv->chan[1].msch = (struct rk3288_msch *)
1061                         (regmap_get_range(map, 0) + 0x80);
1062
1063         priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
1064         priv->sgrf = syscon_get_first_range(ROCKCHIP_SYSCON_SGRF);
1065
1066         priv->chan[0].pctl = regmap_get_range(plat->map, 0);
1067         priv->chan[0].publ = regmap_get_range(plat->map, 1);
1068         priv->chan[1].pctl = regmap_get_range(plat->map, 2);
1069         priv->chan[1].publ = regmap_get_range(plat->map, 3);
1070
1071         ret = rockchip_get_clk(&dev_clk);
1072         if (ret)
1073                 return ret;
1074         priv->ddr_clk.id = CLK_DDR;
1075         ret = clk_request(dev_clk, &priv->ddr_clk);
1076         if (ret)
1077                 return ret;
1078
1079         priv->cru = rockchip_get_cru();
1080         if (IS_ERR(priv->cru))
1081                 return PTR_ERR(priv->cru);
1082         ret = setup_sdram(dev);
1083         if (ret)
1084                 return ret;
1085 #else
1086         priv->info.base = CONFIG_SYS_SDRAM_BASE;
1087         priv->info.size = rockchip_sdram_size(
1088                         (phys_addr_t)&priv->pmu->sys_reg[2]);
1089 #endif
1090
1091         return 0;
1092 }
1093
1094 static int rk3288_dmc_get_info(struct udevice *dev, struct ram_info *info)
1095 {
1096         struct dram_info *priv = dev_get_priv(dev);
1097
1098         *info = priv->info;
1099
1100         return 0;
1101 }
1102
1103 static struct ram_ops rk3288_dmc_ops = {
1104         .get_info = rk3288_dmc_get_info,
1105 };
1106
1107 static const struct udevice_id rk3288_dmc_ids[] = {
1108         { .compatible = "rockchip,rk3288-dmc" },
1109         { }
1110 };
1111
1112 U_BOOT_DRIVER(dmc_rk3288) = {
1113         .name = "rockchip_rk3288_dmc",
1114         .id = UCLASS_RAM,
1115         .of_match = rk3288_dmc_ids,
1116         .ops = &rk3288_dmc_ops,
1117 #ifdef CONFIG_SPL_BUILD
1118         .ofdata_to_platdata = rk3288_dmc_ofdata_to_platdata,
1119 #endif
1120         .probe = rk3288_dmc_probe,
1121         .priv_auto_alloc_size = sizeof(struct dram_info),
1122 #ifdef CONFIG_SPL_BUILD
1123         .platdata_auto_alloc_size = sizeof(struct rk3288_sdram_params),
1124 #endif
1125 };