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1 /*
2  * Copyright 2008-2014 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:     GPL-2.0
5  */
6
7 #ifndef FSL_DDR_MEMCTL_H
8 #define FSL_DDR_MEMCTL_H
9
10 /*
11  * Pick a basic DDR Technology.
12  */
13 #include <ddr_spd.h>
14 #include <fsl_ddrc_version.h>
15
16 #define SDRAM_TYPE_DDR1         2
17 #define SDRAM_TYPE_DDR2         3
18 #define SDRAM_TYPE_LPDDR1       6
19 #define SDRAM_TYPE_DDR3         7
20 #define SDRAM_TYPE_DDR4         5
21
22 #define DDR_BL4         4       /* burst length 4 */
23 #define DDR_BC4         DDR_BL4 /* burst chop for ddr3 */
24 #define DDR_OTF         6       /* on-the-fly BC4 and BL8 */
25 #define DDR_BL8         8       /* burst length 8 */
26
27 #define DDR3_RTT_OFF            0
28 #define DDR3_RTT_60_OHM         1 /* RTT_Nom = RZQ/4 */
29 #define DDR3_RTT_120_OHM        2 /* RTT_Nom = RZQ/2 */
30 #define DDR3_RTT_40_OHM         3 /* RTT_Nom = RZQ/6 */
31 #define DDR3_RTT_20_OHM         4 /* RTT_Nom = RZQ/12 */
32 #define DDR3_RTT_30_OHM         5 /* RTT_Nom = RZQ/8 */
33
34 #define DDR4_RTT_OFF            0
35 #define DDR4_RTT_60_OHM         1       /* RZQ/4 */
36 #define DDR4_RTT_120_OHM        2       /* RZQ/2 */
37 #define DDR4_RTT_40_OHM         3       /* RZQ/6 */
38 #define DDR4_RTT_240_OHM        4       /* RZQ/1 */
39 #define DDR4_RTT_48_OHM         5       /* RZQ/5 */
40 #define DDR4_RTT_80_OHM         6       /* RZQ/3 */
41 #define DDR4_RTT_34_OHM         7       /* RZQ/7 */
42
43 #define DDR2_RTT_OFF            0
44 #define DDR2_RTT_75_OHM         1
45 #define DDR2_RTT_150_OHM        2
46 #define DDR2_RTT_50_OHM         3
47
48 #if defined(CONFIG_SYS_FSL_DDR1)
49 #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR        (1)
50 typedef ddr1_spd_eeprom_t generic_spd_eeprom_t;
51 #ifndef CONFIG_FSL_SDRAM_TYPE
52 #define CONFIG_FSL_SDRAM_TYPE   SDRAM_TYPE_DDR1
53 #endif
54 #elif defined(CONFIG_SYS_FSL_DDR2)
55 #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR        (3)
56 typedef ddr2_spd_eeprom_t generic_spd_eeprom_t;
57 #ifndef CONFIG_FSL_SDRAM_TYPE
58 #define CONFIG_FSL_SDRAM_TYPE   SDRAM_TYPE_DDR2
59 #endif
60 #elif defined(CONFIG_SYS_FSL_DDR3)
61 typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
62 #ifndef CONFIG_FSL_SDRAM_TYPE
63 #define CONFIG_FSL_SDRAM_TYPE   SDRAM_TYPE_DDR3
64 #endif
65 #elif defined(CONFIG_SYS_FSL_DDR4)
66 #define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR        (3)     /* FIXME */
67 typedef struct ddr4_spd_eeprom_s generic_spd_eeprom_t;
68 #ifndef CONFIG_FSL_SDRAM_TYPE
69 #define CONFIG_FSL_SDRAM_TYPE   SDRAM_TYPE_DDR4
70 #endif
71 #endif  /* #if defined(CONFIG_SYS_FSL_DDR1) */
72
73 #define FSL_DDR_ODT_NEVER               0x0
74 #define FSL_DDR_ODT_CS                  0x1
75 #define FSL_DDR_ODT_ALL_OTHER_CS        0x2
76 #define FSL_DDR_ODT_OTHER_DIMM          0x3
77 #define FSL_DDR_ODT_ALL                 0x4
78 #define FSL_DDR_ODT_SAME_DIMM           0x5
79 #define FSL_DDR_ODT_CS_AND_OTHER_DIMM   0x6
80 #define FSL_DDR_ODT_OTHER_CS_ONSAMEDIMM 0x7
81
82 /* define bank(chip select) interleaving mode */
83 #define FSL_DDR_CS0_CS1                 0x40
84 #define FSL_DDR_CS2_CS3                 0x20
85 #define FSL_DDR_CS0_CS1_AND_CS2_CS3     (FSL_DDR_CS0_CS1 | FSL_DDR_CS2_CS3)
86 #define FSL_DDR_CS0_CS1_CS2_CS3         (FSL_DDR_CS0_CS1_AND_CS2_CS3 | 0x04)
87
88 /* define memory controller interleaving mode */
89 #define FSL_DDR_CACHE_LINE_INTERLEAVING 0x0
90 #define FSL_DDR_PAGE_INTERLEAVING       0x1
91 #define FSL_DDR_BANK_INTERLEAVING       0x2
92 #define FSL_DDR_SUPERBANK_INTERLEAVING  0x3
93 #define FSL_DDR_256B_INTERLEAVING       0x8
94 #define FSL_DDR_3WAY_1KB_INTERLEAVING   0xA
95 #define FSL_DDR_3WAY_4KB_INTERLEAVING   0xC
96 #define FSL_DDR_3WAY_8KB_INTERLEAVING   0xD
97 /* placeholder for 4-way interleaving */
98 #define FSL_DDR_4WAY_1KB_INTERLEAVING   0x1A
99 #define FSL_DDR_4WAY_4KB_INTERLEAVING   0x1C
100 #define FSL_DDR_4WAY_8KB_INTERLEAVING   0x1D
101
102 #define SDRAM_CS_CONFIG_EN              0x80000000
103
104 /* DDR_SDRAM_CFG - DDR SDRAM Control Configuration
105  */
106 #define SDRAM_CFG_MEM_EN                0x80000000
107 #define SDRAM_CFG_SREN                  0x40000000
108 #define SDRAM_CFG_ECC_EN                0x20000000
109 #define SDRAM_CFG_RD_EN                 0x10000000
110 #define SDRAM_CFG_SDRAM_TYPE_DDR1       0x02000000
111 #define SDRAM_CFG_SDRAM_TYPE_DDR2       0x03000000
112 #define SDRAM_CFG_SDRAM_TYPE_MASK       0x07000000
113 #define SDRAM_CFG_SDRAM_TYPE_SHIFT      24
114 #define SDRAM_CFG_DYN_PWR               0x00200000
115 #define SDRAM_CFG_DBW_MASK              0x00180000
116 #define SDRAM_CFG_DBW_SHIFT             19
117 #define SDRAM_CFG_32_BE                 0x00080000
118 #define SDRAM_CFG_16_BE                 0x00100000
119 #define SDRAM_CFG_8_BE                  0x00040000
120 #define SDRAM_CFG_NCAP                  0x00020000
121 #define SDRAM_CFG_2T_EN                 0x00008000
122 #define SDRAM_CFG_BI                    0x00000001
123
124 #define SDRAM_CFG2_FRC_SR               0x80000000
125 #define SDRAM_CFG2_D_INIT               0x00000010
126 #define SDRAM_CFG2_AP_EN                0x00000020
127 #define SDRAM_CFG2_ODT_CFG_MASK         0x00600000
128 #define SDRAM_CFG2_ODT_NEVER            0
129 #define SDRAM_CFG2_ODT_ONLY_WRITE       1
130 #define SDRAM_CFG2_ODT_ONLY_READ        2
131 #define SDRAM_CFG2_ODT_ALWAYS           3
132
133 #define SDRAM_INTERVAL_BSTOPRE  0x3FFF
134 #define TIMING_CFG_2_CPO_MASK   0x0F800000
135
136 #if defined(CONFIG_SYS_FSL_DDR_VER) && \
137         (CONFIG_SYS_FSL_DDR_VER > FSL_DDR_VER_4_4)
138 #define RD_TO_PRE_MASK          0xf
139 #define RD_TO_PRE_SHIFT         13
140 #define WR_DATA_DELAY_MASK      0xf
141 #define WR_DATA_DELAY_SHIFT     9
142 #else
143 #define RD_TO_PRE_MASK          0x7
144 #define RD_TO_PRE_SHIFT         13
145 #define WR_DATA_DELAY_MASK      0x7
146 #define WR_DATA_DELAY_SHIFT     10
147 #endif
148
149 /* DDR_EOR register */
150 #define DDR_EOR_RD_REOD_DIS     0x07000000
151 #define DDR_EOR_WD_REOD_DIS     0x00100000
152
153 /* DDR_MD_CNTL */
154 #define MD_CNTL_MD_EN           0x80000000
155 #define MD_CNTL_CS_SEL_CS0      0x00000000
156 #define MD_CNTL_CS_SEL_CS1      0x10000000
157 #define MD_CNTL_CS_SEL_CS2      0x20000000
158 #define MD_CNTL_CS_SEL_CS3      0x30000000
159 #define MD_CNTL_CS_SEL_CS0_CS1  0x40000000
160 #define MD_CNTL_CS_SEL_CS2_CS3  0x50000000
161 #define MD_CNTL_MD_SEL_MR       0x00000000
162 #define MD_CNTL_MD_SEL_EMR      0x01000000
163 #define MD_CNTL_MD_SEL_EMR2     0x02000000
164 #define MD_CNTL_MD_SEL_EMR3     0x03000000
165 #define MD_CNTL_SET_REF         0x00800000
166 #define MD_CNTL_SET_PRE         0x00400000
167 #define MD_CNTL_CKE_CNTL_LOW    0x00100000
168 #define MD_CNTL_CKE_CNTL_HIGH   0x00200000
169 #define MD_CNTL_WRCW            0x00080000
170 #define MD_CNTL_MD_VALUE(x)     (x & 0x0000FFFF)
171 #define MD_CNTL_CS_SEL(x)       (((x) & 0x7) << 28)
172 #define MD_CNTL_MD_SEL(x)       (((x) & 0xf) << 24)
173
174 /* DDR_CDR1 */
175 #define DDR_CDR1_DHC_EN 0x80000000
176 #define DDR_CDR1_ODT_SHIFT      17
177 #define DDR_CDR1_ODT_MASK       0x6
178 #define DDR_CDR2_ODT_MASK       0x1
179 #define DDR_CDR1_ODT(x) ((x & DDR_CDR1_ODT_MASK) << DDR_CDR1_ODT_SHIFT)
180 #define DDR_CDR2_ODT(x) (x & DDR_CDR2_ODT_MASK)
181 #define DDR_CDR2_VREF_OVRD(x)   (0x00008080 | ((((x) - 37) & 0x3F) << 8))
182 #define DDR_CDR2_VREF_TRAIN_EN  0x00000080
183 #define DDR_CDR2_VREF_RANGE_2   0x00000040
184
185 /* DDR ERR_DISABLE */
186 #define DDR_ERR_DISABLE_APED    (1 << 8)  /* Address parity error disable */
187
188 /* Mode Registers */
189 #define DDR_MR5_CA_PARITY_LAT_4_CLK     0x1 /* for DDR4-1600/1866/2133 */
190 #define DDR_MR5_CA_PARITY_LAT_5_CLK     0x2 /* for DDR4-2400 */
191
192 /* DEBUG_26 register */
193 #define DDR_CAS_TO_PRE_SUB_MASK  0x0000f000 /* CAS to preamble subtract value */
194 #define DDR_CAS_TO_PRE_SUB_SHIFT 12
195
196 /* DEBUG_29 register */
197 #define DDR_TX_BD_DIS   (1 << 10) /* Transmit Bit Deskew Disable */
198
199
200 #if (defined(CONFIG_SYS_FSL_DDR_VER) && \
201         (CONFIG_SYS_FSL_DDR_VER >= FSL_DDR_VER_4_7))
202 #ifdef CONFIG_SYS_FSL_DDR3L
203 #define DDR_CDR_ODT_OFF         0x0
204 #define DDR_CDR_ODT_120ohm      0x1
205 #define DDR_CDR_ODT_200ohm      0x2
206 #define DDR_CDR_ODT_75ohm       0x3
207 #define DDR_CDR_ODT_60ohm       0x5
208 #define DDR_CDR_ODT_46ohm       0x7
209 #elif defined(CONFIG_SYS_FSL_DDR4)
210 #define DDR_CDR_ODT_OFF         0x0
211 #define DDR_CDR_ODT_100ohm      0x1
212 #define DDR_CDR_ODT_120OHM      0x2
213 #define DDR_CDR_ODT_80ohm       0x3
214 #define DDR_CDR_ODT_60ohm       0x4
215 #define DDR_CDR_ODT_40ohm       0x5
216 #define DDR_CDR_ODT_50ohm       0x6
217 #define DDR_CDR_ODT_30ohm       0x7
218 #else
219 #define DDR_CDR_ODT_OFF         0x0
220 #define DDR_CDR_ODT_120ohm      0x1
221 #define DDR_CDR_ODT_180ohm      0x2
222 #define DDR_CDR_ODT_75ohm       0x3
223 #define DDR_CDR_ODT_110ohm      0x4
224 #define DDR_CDR_ODT_60hm        0x5
225 #define DDR_CDR_ODT_70ohm       0x6
226 #define DDR_CDR_ODT_47ohm       0x7
227 #endif /* DDR3L */
228 #else
229 #define DDR_CDR_ODT_75ohm       0x0
230 #define DDR_CDR_ODT_55ohm       0x1
231 #define DDR_CDR_ODT_60ohm       0x2
232 #define DDR_CDR_ODT_50ohm       0x3
233 #define DDR_CDR_ODT_150ohm      0x4
234 #define DDR_CDR_ODT_43ohm       0x5
235 #define DDR_CDR_ODT_120ohm      0x6
236 #endif
237
238 #define DDR_INIT_ADDR_EXT_UIA   (1 << 31)
239
240 /* Record of register values computed */
241 typedef struct fsl_ddr_cfg_regs_s {
242         struct {
243                 unsigned int bnds;
244                 unsigned int config;
245                 unsigned int config_2;
246         } cs[CONFIG_CHIP_SELECTS_PER_CTRL];
247         unsigned int timing_cfg_3;
248         unsigned int timing_cfg_0;
249         unsigned int timing_cfg_1;
250         unsigned int timing_cfg_2;
251         unsigned int ddr_sdram_cfg;
252         unsigned int ddr_sdram_cfg_2;
253         unsigned int ddr_sdram_cfg_3;
254         unsigned int ddr_sdram_mode;
255         unsigned int ddr_sdram_mode_2;
256         unsigned int ddr_sdram_mode_3;
257         unsigned int ddr_sdram_mode_4;
258         unsigned int ddr_sdram_mode_5;
259         unsigned int ddr_sdram_mode_6;
260         unsigned int ddr_sdram_mode_7;
261         unsigned int ddr_sdram_mode_8;
262         unsigned int ddr_sdram_mode_9;
263         unsigned int ddr_sdram_mode_10;
264         unsigned int ddr_sdram_mode_11;
265         unsigned int ddr_sdram_mode_12;
266         unsigned int ddr_sdram_mode_13;
267         unsigned int ddr_sdram_mode_14;
268         unsigned int ddr_sdram_mode_15;
269         unsigned int ddr_sdram_mode_16;
270         unsigned int ddr_sdram_md_cntl;
271         unsigned int ddr_sdram_interval;
272         unsigned int ddr_data_init;
273         unsigned int ddr_sdram_clk_cntl;
274         unsigned int ddr_init_addr;
275         unsigned int ddr_init_ext_addr;
276         unsigned int timing_cfg_4;
277         unsigned int timing_cfg_5;
278         unsigned int timing_cfg_6;
279         unsigned int timing_cfg_7;
280         unsigned int timing_cfg_8;
281         unsigned int timing_cfg_9;
282         unsigned int ddr_zq_cntl;
283         unsigned int ddr_wrlvl_cntl;
284         unsigned int ddr_wrlvl_cntl_2;
285         unsigned int ddr_wrlvl_cntl_3;
286         unsigned int ddr_sr_cntr;
287         unsigned int ddr_sdram_rcw_1;
288         unsigned int ddr_sdram_rcw_2;
289         unsigned int ddr_sdram_rcw_3;
290         unsigned int ddr_sdram_rcw_4;
291         unsigned int ddr_sdram_rcw_5;
292         unsigned int ddr_sdram_rcw_6;
293         unsigned int dq_map_0;
294         unsigned int dq_map_1;
295         unsigned int dq_map_2;
296         unsigned int dq_map_3;
297         unsigned int ddr_eor;
298         unsigned int ddr_cdr1;
299         unsigned int ddr_cdr2;
300         unsigned int err_disable;
301         unsigned int err_int_en;
302         unsigned int debug[32];
303 } fsl_ddr_cfg_regs_t;
304
305 typedef struct memctl_options_partial_s {
306         unsigned int all_dimms_ecc_capable;
307         unsigned int all_dimms_tckmax_ps;
308         unsigned int all_dimms_burst_lengths_bitmask;
309         unsigned int all_dimms_registered;
310         unsigned int all_dimms_unbuffered;
311         /*      unsigned int lowest_common_spd_caslat; */
312         unsigned int all_dimms_minimum_trcd_ps;
313 } memctl_options_partial_t;
314
315 #define DDR_DATA_BUS_WIDTH_64 0
316 #define DDR_DATA_BUS_WIDTH_32 1
317 #define DDR_DATA_BUS_WIDTH_16 2
318 #define DDR_CSWL_CS0    0x04000001
319 /*
320  * Generalized parameters for memory controller configuration,
321  * might be a little specific to the FSL memory controller
322  */
323 typedef struct memctl_options_s {
324         /*
325          * Memory organization parameters
326          *
327          * if DIMM is present in the system
328          * where DIMMs are with respect to chip select
329          * where chip selects are with respect to memory boundaries
330          */
331         unsigned int registered_dimm_en;    /* use registered DIMM support */
332
333         /* Options local to a Chip Select */
334         struct cs_local_opts_s {
335                 unsigned int auto_precharge;
336                 unsigned int odt_rd_cfg;
337                 unsigned int odt_wr_cfg;
338                 unsigned int odt_rtt_norm;
339                 unsigned int odt_rtt_wr;
340         } cs_local_opts[CONFIG_CHIP_SELECTS_PER_CTRL];
341
342         /* Special configurations for chip select */
343         unsigned int memctl_interleaving;
344         unsigned int memctl_interleaving_mode;
345         unsigned int ba_intlv_ctl;
346         unsigned int addr_hash;
347
348         /* Operational mode parameters */
349         unsigned int ecc_mode;   /* Use ECC? */
350         /* Initialize ECC using memory controller? */
351         unsigned int ecc_init_using_memctl;
352         unsigned int dqs_config;        /* Use DQS? maybe only with DDR2? */
353         /* SREN - self-refresh during sleep */
354         unsigned int self_refresh_in_sleep;
355         /* SR_IE - Self-refresh interrupt enable */
356         unsigned int self_refresh_interrupt_en;
357         unsigned int dynamic_power;     /* DYN_PWR */
358         /* memory data width to use (16-bit, 32-bit, 64-bit) */
359         unsigned int data_bus_width;
360         unsigned int burst_length;      /* BL4, OTF and BL8 */
361         /* On-The-Fly Burst Chop enable */
362         unsigned int otf_burst_chop_en;
363         /* mirrior DIMMs for DDR3 */
364         unsigned int mirrored_dimm;
365         unsigned int quad_rank_present;
366         unsigned int ap_en;     /* address parity enable for RDIMM/DDR4-UDIMM */
367         unsigned int x4_en;     /* enable x4 devices */
368
369         /* Global Timing Parameters */
370         unsigned int cas_latency_override;
371         unsigned int cas_latency_override_value;
372         unsigned int use_derated_caslat;
373         unsigned int additive_latency_override;
374         unsigned int additive_latency_override_value;
375
376         unsigned int clk_adjust;                /* */
377         unsigned int cpo_override;
378         unsigned int write_data_delay;          /* DQS adjust */
379
380         unsigned int cswl_override;
381         unsigned int wrlvl_override;
382         unsigned int wrlvl_sample;              /* Write leveling */
383         unsigned int wrlvl_start;
384         unsigned int wrlvl_ctl_2;
385         unsigned int wrlvl_ctl_3;
386
387         unsigned int half_strength_driver_enable;
388         unsigned int twot_en;
389         unsigned int threet_en;
390         unsigned int bstopre;
391         unsigned int tfaw_window_four_activates_ps;     /* tFAW --  FOUR_ACT */
392
393         /* Rtt impedance */
394         unsigned int rtt_override;              /* rtt_override enable */
395         unsigned int rtt_override_value;        /* that is Rtt_Nom for DDR3 */
396         unsigned int rtt_wr_override_value;     /* this is Rtt_WR for DDR3 */
397
398         /* Automatic self refresh */
399         unsigned int auto_self_refresh_en;
400         unsigned int sr_it;
401         /* ZQ calibration */
402         unsigned int zq_en;
403         /* Write leveling */
404         unsigned int wrlvl_en;
405         /* RCW override for RDIMM */
406         unsigned int rcw_override;
407         unsigned int rcw_1;
408         unsigned int rcw_2;
409         /* control register 1 */
410         unsigned int ddr_cdr1;
411         unsigned int ddr_cdr2;
412
413         unsigned int trwt_override;
414         unsigned int trwt;                      /* read-to-write turnaround */
415 } memctl_options_t;
416
417 phys_size_t fsl_ddr_sdram(void);
418 phys_size_t fsl_ddr_sdram_size(void);
419 phys_size_t fsl_other_ddr_sdram(unsigned long long base,
420                                 unsigned int first_ctrl,
421                                 unsigned int num_ctrls,
422                                 unsigned int dimm_slots_per_ctrl,
423                                 int (*board_need_reset)(void),
424                                 void (*board_reset)(void),
425                                 void (*board_de_reset)(void));
426 extern int fsl_use_spd(void);
427 void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
428                              unsigned int ctrl_num, int step);
429 u32 fsl_ddr_get_intl3r(void);
430 void print_ddr_info(unsigned int start_ctrl);
431
432 static void __board_assert_mem_reset(void)
433 {
434 }
435
436 static void __board_deassert_mem_reset(void)
437 {
438 }
439
440 void board_assert_mem_reset(void)
441         __attribute__((weak, alias("__board_assert_mem_reset")));
442
443 void board_deassert_mem_reset(void)
444         __attribute__((weak, alias("__board_deassert_mem_reset")));
445
446 static int __board_need_mem_reset(void)
447 {
448         return 0;
449 }
450
451 int board_need_mem_reset(void)
452         __attribute__((weak, alias("__board_need_mem_reset")));
453
454 #if defined(CONFIG_DEEP_SLEEP)
455 void board_mem_sleep_setup(void);
456 bool is_warm_boot(void);
457 int fsl_dp_resume(void);
458 #endif
459
460 /*
461  * The 85xx boards have a common prototype for fixed_sdram so put the
462  * declaration here.
463  */
464 #ifdef CONFIG_MPC85xx
465 extern phys_size_t fixed_sdram(void);
466 #endif
467
468 #if defined(CONFIG_DDR_ECC)
469 extern void ddr_enable_ecc(unsigned int dram_size);
470 #endif
471
472
473 typedef struct fixed_ddr_parm{
474         int min_freq;
475         int max_freq;
476         fsl_ddr_cfg_regs_t *ddr_settings;
477 } fixed_ddr_parm_t;
478 #endif