include/fsl_ddr_sdram.h

   1 /*
   2  * Copyright 2008-2014 Freescale Semiconductor, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * Version 2 as published by the Free Software Foundation.
   7  */
   8
   9 #ifndef FSL_DDR_MEMCTL_H
  10 #define FSL_DDR_MEMCTL_H
  11
  12 /*
  13  * Pick a basic DDR Technology.
  14  */
  15 #include <ddr_spd.h>
  16 #include <fsl_ddrc_version.h>
  17
  18 #define SDRAM_TYPE_DDR1         2
  19 #define SDRAM_TYPE_DDR2         3
  20 #define SDRAM_TYPE_LPDDR1       6
  21 #define SDRAM_TYPE_DDR3         7
  22 #define SDRAM_TYPE_DDR4         5
  23
  24 #define DDR_BL4         4       /* burst length 4 */
  25 #define DDR_BC4         DDR_BL4 /* burst chop for ddr3 */
  26 #define DDR_OTF         6       /* on-the-fly BC4 and BL8 */
  27 #define DDR_BL8         8       /* burst length 8 */
  28
  29 #define DDR3_RTT_OFF            0
  30 #define DDR3_RTT_60_OHM         1 /* RTT_Nom = RZQ/4 */
  31 #define DDR3_RTT_120_OHM        2 /* RTT_Nom = RZQ/2 */
  32 #define DDR3_RTT_40_OHM         3 /* RTT_Nom = RZQ/6 */
  33 #define DDR3_RTT_20_OHM         4 /* RTT_Nom = RZQ/12 */
  34 #define DDR3_RTT_30_OHM         5 /* RTT_Nom = RZQ/8 */
  35
  36 #define DDR2_RTT_OFF            0
  37 #define DDR2_RTT_75_OHM         1
  38 #define DDR2_RTT_150_OHM        2
  39 #define DDR2_RTT_50_OHM         3
  40
  41 #if defined(CONFIG_SYS_FSL_DDR1)
  42 #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR        (1)
  43 typedef ddr1_spd_eeprom_t generic_spd_eeprom_t;
  44 #ifndef CONFIG_FSL_SDRAM_TYPE
  45 #define CONFIG_FSL_SDRAM_TYPE   SDRAM_TYPE_DDR1
  46 #endif
  47 #elif defined(CONFIG_SYS_FSL_DDR2)
  48 #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR        (3)
  49 typedef ddr2_spd_eeprom_t generic_spd_eeprom_t;
  50 #ifndef CONFIG_FSL_SDRAM_TYPE
  51 #define CONFIG_FSL_SDRAM_TYPE   SDRAM_TYPE_DDR2
  52 #endif
  53 #elif defined(CONFIG_SYS_FSL_DDR3)
  54 #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR        (3)     /* FIXME */
  55 typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
  56 #ifndef CONFIG_FSL_SDRAM_TYPE
  57 #define CONFIG_FSL_SDRAM_TYPE   SDRAM_TYPE_DDR3
  58 #endif
  59 #elif defined(CONFIG_SYS_FSL_DDR4)
  60 #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR        (3)     /* FIXME */
  61 typedef struct ddr4_spd_eeprom_s generic_spd_eeprom_t;
  62 #ifndef CONFIG_FSL_SDRAM_TYPE
  63 #define CONFIG_FSL_SDRAM_TYPE   SDRAM_TYPE_DDR4
  64 #endif
  65 #endif  /* #if defined(CONFIG_SYS_FSL_DDR1) */
  66
  67 #define FSL_DDR_ODT_NEVER               0x0
  68 #define FSL_DDR_ODT_CS                  0x1
  69 #define FSL_DDR_ODT_ALL_OTHER_CS        0x2
  70 #define FSL_DDR_ODT_OTHER_DIMM          0x3
  71 #define FSL_DDR_ODT_ALL                 0x4
  72 #define FSL_DDR_ODT_SAME_DIMM           0x5
  73 #define FSL_DDR_ODT_CS_AND_OTHER_DIMM   0x6
  74 #define FSL_DDR_ODT_OTHER_CS_ONSAMEDIMM 0x7
  75
  76 /* define bank(chip select) interleaving mode */
  77 #define FSL_DDR_CS0_CS1                 0x40
  78 #define FSL_DDR_CS2_CS3                 0x20
  79 #define FSL_DDR_CS0_CS1_AND_CS2_CS3     (FSL_DDR_CS0_CS1 | FSL_DDR_CS2_CS3)
  80 #define FSL_DDR_CS0_CS1_CS2_CS3         (FSL_DDR_CS0_CS1_AND_CS2_CS3 | 0x04)
  81
  82 /* define memory controller interleaving mode */
  83 #define FSL_DDR_CACHE_LINE_INTERLEAVING 0x0
  84 #define FSL_DDR_PAGE_INTERLEAVING       0x1
  85 #define FSL_DDR_BANK_INTERLEAVING       0x2
  86 #define FSL_DDR_SUPERBANK_INTERLEAVING  0x3
  87 #define FSL_DDR_256B_INTERLEAVING       0x8
  88 #define FSL_DDR_3WAY_1KB_INTERLEAVING   0xA
  89 #define FSL_DDR_3WAY_4KB_INTERLEAVING   0xC
  90 #define FSL_DDR_3WAY_8KB_INTERLEAVING   0xD
  91 /* placeholder for 4-way interleaving */
  92 #define FSL_DDR_4WAY_1KB_INTERLEAVING   0x1A
  93 #define FSL_DDR_4WAY_4KB_INTERLEAVING   0x1C
  94 #define FSL_DDR_4WAY_8KB_INTERLEAVING   0x1D
  95
  96 #define SDRAM_CS_CONFIG_EN              0x80000000
  97
  98 /* DDR_SDRAM_CFG - DDR SDRAM Control Configuration
  99  */
 100 #define SDRAM_CFG_MEM_EN                0x80000000
 101 #define SDRAM_CFG_SREN                  0x40000000
 102 #define SDRAM_CFG_ECC_EN                0x20000000
 103 #define SDRAM_CFG_RD_EN                 0x10000000
 104 #define SDRAM_CFG_SDRAM_TYPE_DDR1       0x02000000
 105 #define SDRAM_CFG_SDRAM_TYPE_DDR2       0x03000000
 106 #define SDRAM_CFG_SDRAM_TYPE_MASK       0x07000000
 107 #define SDRAM_CFG_SDRAM_TYPE_SHIFT      24
 108 #define SDRAM_CFG_DYN_PWR               0x00200000
 109 #define SDRAM_CFG_DBW_MASK              0x00180000
 110 #define SDRAM_CFG_DBW_SHIFT             19
 111 #define SDRAM_CFG_32_BE                 0x00080000
 112 #define SDRAM_CFG_16_BE                 0x00100000
 113 #define SDRAM_CFG_8_BE                  0x00040000
 114 #define SDRAM_CFG_NCAP                  0x00020000
 115 #define SDRAM_CFG_2T_EN                 0x00008000
 116 #define SDRAM_CFG_BI                    0x00000001
 117
 118 #define SDRAM_CFG2_D_INIT               0x00000010
 119 #define SDRAM_CFG2_ODT_CFG_MASK         0x00600000
 120 #define SDRAM_CFG2_ODT_NEVER            0
 121 #define SDRAM_CFG2_ODT_ONLY_WRITE       1
 122 #define SDRAM_CFG2_ODT_ONLY_READ        2
 123 #define SDRAM_CFG2_ODT_ALWAYS           3
 124
 125 #define TIMING_CFG_2_CPO_MASK   0x0F800000
 126
 127 #if defined(CONFIG_SYS_FSL_DDR_VER) && \
 128         (CONFIG_SYS_FSL_DDR_VER > FSL_DDR_VER_4_4)
 129 #define RD_TO_PRE_MASK          0xf
 130 #define RD_TO_PRE_SHIFT         13
 131 #define WR_DATA_DELAY_MASK      0xf
 132 #define WR_DATA_DELAY_SHIFT     9
 133 #else
 134 #define RD_TO_PRE_MASK          0x7
 135 #define RD_TO_PRE_SHIFT         13
 136 #define WR_DATA_DELAY_MASK      0x7
 137 #define WR_DATA_DELAY_SHIFT     10
 138 #endif
 139
 140 /* DDR_MD_CNTL */
 141 #define MD_CNTL_MD_EN           0x80000000
 142 #define MD_CNTL_CS_SEL_CS0      0x00000000
 143 #define MD_CNTL_CS_SEL_CS1      0x10000000
 144 #define MD_CNTL_CS_SEL_CS2      0x20000000
 145 #define MD_CNTL_CS_SEL_CS3      0x30000000
 146 #define MD_CNTL_CS_SEL_CS0_CS1  0x40000000
 147 #define MD_CNTL_CS_SEL_CS2_CS3  0x50000000
 148 #define MD_CNTL_MD_SEL_MR       0x00000000
 149 #define MD_CNTL_MD_SEL_EMR      0x01000000
 150 #define MD_CNTL_MD_SEL_EMR2     0x02000000
 151 #define MD_CNTL_MD_SEL_EMR3     0x03000000
 152 #define MD_CNTL_SET_REF         0x00800000
 153 #define MD_CNTL_SET_PRE         0x00400000
 154 #define MD_CNTL_CKE_CNTL_LOW    0x00100000
 155 #define MD_CNTL_CKE_CNTL_HIGH   0x00200000
 156 #define MD_CNTL_WRCW            0x00080000
 157 #define MD_CNTL_MD_VALUE(x)     (x & 0x0000FFFF)
 158
 159 /* DDR_CDR1 */
 160 #define DDR_CDR1_DHC_EN 0x80000000
 161 #define DDR_CDR1_ODT_SHIFT      17
 162 #define DDR_CDR1_ODT_MASK       0x6
 163 #define DDR_CDR2_ODT_MASK       0x1
 164 #define DDR_CDR1_ODT(x) ((x & DDR_CDR1_ODT_MASK) << DDR_CDR1_ODT_SHIFT)
 165 #define DDR_CDR2_ODT(x) (x & DDR_CDR2_ODT_MASK)
 166 #define DDR_CDR2_VREF_OVRD(x)   (0x00008080 | ((((x) - 37) & 0x3F) << 8))
 167
 168 #if (defined(CONFIG_SYS_FSL_DDR_VER) && \
 169         (CONFIG_SYS_FSL_DDR_VER >= FSL_DDR_VER_4_7))
 170 #ifdef CONFIG_SYS_FSL_DDR3L
 171 #define DDR_CDR_ODT_OFF         0x0
 172 #define DDR_CDR_ODT_120ohm      0x1
 173 #define DDR_CDR_ODT_200ohm      0x2
 174 #define DDR_CDR_ODT_75ohm       0x3
 175 #define DDR_CDR_ODT_60ohm       0x5
 176 #define DDR_CDR_ODT_46ohm       0x7
 177 #elif defined(CONFIG_SYS_FSL_DDR4)
 178 #define DDR_CDR_ODT_OFF         0x0
 179 #define DDR_CDR_ODT_100ohm      0x1
 180 #define DDR_CDR_ODT_120OHM      0x2
 181 #define DDR_CDR_ODT_80ohm       0x3
 182 #define DDR_CDR_ODT_60ohm       0x4
 183 #define DDR_CDR_ODT_40ohm       0x5
 184 #define DDR_CDR_ODT_50ohm       0x6
 185 #define DDR_CDR_ODT_30ohm       0x7
 186 #else
 187 #define DDR_CDR_ODT_OFF         0x0
 188 #define DDR_CDR_ODT_120ohm      0x1
 189 #define DDR_CDR_ODT_180ohm      0x2
 190 #define DDR_CDR_ODT_75ohm       0x3
 191 #define DDR_CDR_ODT_110ohm      0x4
 192 #define DDR_CDR_ODT_60hm        0x5
 193 #define DDR_CDR_ODT_70ohm       0x6
 194 #define DDR_CDR_ODT_47ohm       0x7
 195 #endif /* DDR3L */
 196 #else
 197 #define DDR_CDR_ODT_75ohm       0x0
 198 #define DDR_CDR_ODT_55ohm       0x1
 199 #define DDR_CDR_ODT_60ohm       0x2
 200 #define DDR_CDR_ODT_50ohm       0x3
 201 #define DDR_CDR_ODT_150ohm      0x4
 202 #define DDR_CDR_ODT_43ohm       0x5
 203 #define DDR_CDR_ODT_120ohm      0x6
 204 #endif
 205
 206 /* Record of register values computed */
 207 typedef struct fsl_ddr_cfg_regs_s {
 208         struct {
 209                 unsigned int bnds;
 210                 unsigned int config;
 211                 unsigned int config_2;
 212         } cs[CONFIG_CHIP_SELECTS_PER_CTRL];
 213         unsigned int timing_cfg_3;
 214         unsigned int timing_cfg_0;
 215         unsigned int timing_cfg_1;
 216         unsigned int timing_cfg_2;
 217         unsigned int ddr_sdram_cfg;
 218         unsigned int ddr_sdram_cfg_2;
 219         unsigned int ddr_sdram_cfg_3;
 220         unsigned int ddr_sdram_mode;
 221         unsigned int ddr_sdram_mode_2;
 222         unsigned int ddr_sdram_mode_3;
 223         unsigned int ddr_sdram_mode_4;
 224         unsigned int ddr_sdram_mode_5;
 225         unsigned int ddr_sdram_mode_6;
 226         unsigned int ddr_sdram_mode_7;
 227         unsigned int ddr_sdram_mode_8;
 228         unsigned int ddr_sdram_mode_9;
 229         unsigned int ddr_sdram_mode_10;
 230         unsigned int ddr_sdram_mode_11;
 231         unsigned int ddr_sdram_mode_12;
 232         unsigned int ddr_sdram_mode_13;
 233         unsigned int ddr_sdram_mode_14;
 234         unsigned int ddr_sdram_mode_15;
 235         unsigned int ddr_sdram_mode_16;
 236         unsigned int ddr_sdram_md_cntl;
 237         unsigned int ddr_sdram_interval;
 238         unsigned int ddr_data_init;
 239         unsigned int ddr_sdram_clk_cntl;
 240         unsigned int ddr_init_addr;
 241         unsigned int ddr_init_ext_addr;
 242         unsigned int timing_cfg_4;
 243         unsigned int timing_cfg_5;
 244         unsigned int timing_cfg_6;
 245         unsigned int timing_cfg_7;
 246         unsigned int timing_cfg_8;
 247         unsigned int timing_cfg_9;
 248         unsigned int ddr_zq_cntl;
 249         unsigned int ddr_wrlvl_cntl;
 250         unsigned int ddr_wrlvl_cntl_2;
 251         unsigned int ddr_wrlvl_cntl_3;
 252         unsigned int ddr_sr_cntr;
 253         unsigned int ddr_sdram_rcw_1;
 254         unsigned int ddr_sdram_rcw_2;
 255         unsigned int ddr_sdram_rcw_3;
 256         unsigned int ddr_sdram_rcw_4;
 257         unsigned int ddr_sdram_rcw_5;
 258         unsigned int ddr_sdram_rcw_6;
 259         unsigned int dq_map_0;
 260         unsigned int dq_map_1;
 261         unsigned int dq_map_2;
 262         unsigned int dq_map_3;
 263         unsigned int ddr_eor;
 264         unsigned int ddr_cdr1;
 265         unsigned int ddr_cdr2;
 266         unsigned int err_disable;
 267         unsigned int err_int_en;
 268         unsigned int debug[32];
 269 } fsl_ddr_cfg_regs_t;
 270
 271 typedef struct memctl_options_partial_s {
 272         unsigned int all_dimms_ecc_capable;
 273         unsigned int all_dimms_tckmax_ps;
 274         unsigned int all_dimms_burst_lengths_bitmask;
 275         unsigned int all_dimms_registered;
 276         unsigned int all_dimms_unbuffered;
 277         /*      unsigned int lowest_common_spd_caslat; */
 278         unsigned int all_dimms_minimum_trcd_ps;
 279 } memctl_options_partial_t;
 280
 281 #define DDR_DATA_BUS_WIDTH_64 0
 282 #define DDR_DATA_BUS_WIDTH_32 1
 283 #define DDR_DATA_BUS_WIDTH_16 2
 284 #define DDR_CSWL_CS0    0x04000001
 285 /*
 286  * Generalized parameters for memory controller configuration,
 287  * might be a little specific to the FSL memory controller
 288  */
 289 typedef struct memctl_options_s {
 290         /*
 291          * Memory organization parameters
 292          *
 293          * if DIMM is present in the system
 294          * where DIMMs are with respect to chip select
 295          * where chip selects are with respect to memory boundaries
 296          */
 297         unsigned int registered_dimm_en;    /* use registered DIMM support */
 298
 299         /* Options local to a Chip Select */
 300         struct cs_local_opts_s {
 301                 unsigned int auto_precharge;
 302                 unsigned int odt_rd_cfg;
 303                 unsigned int odt_wr_cfg;
 304                 unsigned int odt_rtt_norm;
 305                 unsigned int odt_rtt_wr;
 306         } cs_local_opts[CONFIG_CHIP_SELECTS_PER_CTRL];
 307
 308         /* Special configurations for chip select */
 309         unsigned int memctl_interleaving;
 310         unsigned int memctl_interleaving_mode;
 311         unsigned int ba_intlv_ctl;
 312         unsigned int addr_hash;
 313
 314         /* Operational mode parameters */
 315         unsigned int ecc_mode;   /* Use ECC? */
 316         /* Initialize ECC using memory controller? */
 317         unsigned int ecc_init_using_memctl;
 318         unsigned int dqs_config;        /* Use DQS? maybe only with DDR2? */
 319         /* SREN - self-refresh during sleep */
 320         unsigned int self_refresh_in_sleep;
 321         unsigned int dynamic_power;     /* DYN_PWR */
 322         /* memory data width to use (16-bit, 32-bit, 64-bit) */
 323         unsigned int data_bus_width;
 324         unsigned int burst_length;      /* BL4, OTF and BL8 */
 325         /* On-The-Fly Burst Chop enable */
 326         unsigned int otf_burst_chop_en;
 327         /* mirrior DIMMs for DDR3 */
 328         unsigned int mirrored_dimm;
 329         unsigned int quad_rank_present;
 330         unsigned int ap_en;     /* address parity enable for RDIMM */
 331         unsigned int x4_en;     /* enable x4 devices */
 332
 333         /* Global Timing Parameters */
 334         unsigned int cas_latency_override;
 335         unsigned int cas_latency_override_value;
 336         unsigned int use_derated_caslat;
 337         unsigned int additive_latency_override;
 338         unsigned int additive_latency_override_value;
 339
 340         unsigned int clk_adjust;                /* */
 341         unsigned int cpo_override;
 342         unsigned int write_data_delay;          /* DQS adjust */
 343
 344         unsigned int cswl_override;
 345         unsigned int wrlvl_override;
 346         unsigned int wrlvl_sample;              /* Write leveling */
 347         unsigned int wrlvl_start;
 348         unsigned int wrlvl_ctl_2;
 349         unsigned int wrlvl_ctl_3;
 350
 351         unsigned int half_strength_driver_enable;
 352         unsigned int twot_en;
 353         unsigned int threet_en;
 354         unsigned int bstopre;
 355         unsigned int tcke_clock_pulse_width_ps; /* tCKE */
 356         unsigned int tfaw_window_four_activates_ps;     /* tFAW --  FOUR_ACT */
 357
 358         /* Rtt impedance */
 359         unsigned int rtt_override;              /* rtt_override enable */
 360         unsigned int rtt_override_value;        /* that is Rtt_Nom for DDR3 */
 361         unsigned int rtt_wr_override_value;     /* this is Rtt_WR for DDR3 */
 362
 363         /* Automatic self refresh */
 364         unsigned int auto_self_refresh_en;
 365         unsigned int sr_it;
 366         /* ZQ calibration */
 367         unsigned int zq_en;
 368         /* Write leveling */
 369         unsigned int wrlvl_en;
 370         /* RCW override for RDIMM */
 371         unsigned int rcw_override;
 372         unsigned int rcw_1;
 373         unsigned int rcw_2;
 374         /* control register 1 */
 375         unsigned int ddr_cdr1;
 376         unsigned int ddr_cdr2;
 377
 378         unsigned int trwt_override;
 379         unsigned int trwt;                      /* read-to-write turnaround */
 380 } memctl_options_t;
 381
 382 extern phys_size_t fsl_ddr_sdram(void);
 383 extern phys_size_t fsl_ddr_sdram_size(void);
 384 extern int fsl_use_spd(void);
 385 extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
 386                                         unsigned int ctrl_num, int step);
 387 u32 fsl_ddr_get_intl3r(void);
 388
 389 static void __board_assert_mem_reset(void)
 390 {
 391 }
 392
 393 static void __board_deassert_mem_reset(void)
 394 {
 395 }
 396
 397 void board_assert_mem_reset(void)
 398         __attribute__((weak, alias("__board_assert_mem_reset")));
 399
 400 void board_deassert_mem_reset(void)
 401         __attribute__((weak, alias("__board_deassert_mem_reset")));
 402
 403 static int __board_need_mem_reset(void)
 404 {
 405         return 0;
 406 }
 407
 408 int board_need_mem_reset(void)
 409         __attribute__((weak, alias("__board_need_mem_reset")));
 410
 411 void __weak board_mem_sleep_setup(void)
 412 {
 413 }
 414
 415 /*
 416  * The 85xx boards have a common prototype for fixed_sdram so put the
 417  * declaration here.
 418  */
 419 #ifdef CONFIG_MPC85xx
 420 extern phys_size_t fixed_sdram(void);
 421 #endif
 422
 423 #if defined(CONFIG_DDR_ECC)
 424 extern void ddr_enable_ecc(unsigned int dram_size);
 425 #endif
 426
 427
 428 typedef struct fixed_ddr_parm{
 429         int min_freq;
 430         int max_freq;
 431         fsl_ddr_cfg_regs_t *ddr_settings;
 432 } fixed_ddr_parm_t;
 433 #endif