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b5b06fb7 YS |
1 | /* |
2 | * Copyright 2011-2012 Freescale Semiconductor, Inc. | |
3 | * | |
5b8031cc | 4 | * SPDX-License-Identifier: GPL-2.0 |
b5b06fb7 YS |
5 | */ |
6 | ||
7 | #include <common.h> | |
8 | #include <i2c.h> | |
9 | #include <hwconfig.h> | |
5614e71b | 10 | #include <fsl_ddr.h> |
b5b06fb7 | 11 | #include <asm/mmu.h> |
5614e71b YS |
12 | #include <fsl_ddr_sdram.h> |
13 | #include <fsl_ddr_dimm_params.h> | |
b5b06fb7 YS |
14 | #include <asm/fsl_law.h> |
15 | ||
16 | DECLARE_GLOBAL_DATA_PTR; | |
17 | ||
18 | dimm_params_t ddr_raw_timing = { | |
19 | .n_ranks = 2, | |
20 | .rank_density = 2147483648u, | |
21 | .capacity = 4294967296u, | |
22 | .primary_sdram_width = 64, | |
23 | .ec_sdram_width = 8, | |
24 | .registered_dimm = 0, | |
25 | .mirrored_dimm = 1, | |
26 | .n_row_addr = 15, | |
27 | .n_col_addr = 10, | |
28 | .n_banks_per_sdram_device = 8, | |
29 | .edc_config = 2, /* ECC */ | |
30 | .burst_lengths_bitmask = 0x0c, | |
31 | ||
0dd38a35 PJ |
32 | .tckmin_x_ps = 1071, |
33 | .caslat_x = 0x2fe << 4, /* 5,6,7,8,9,10,11,13 */ | |
34 | .taa_ps = 13910, | |
35 | .twr_ps = 15000, | |
36 | .trcd_ps = 13910, | |
37 | .trrd_ps = 6000, | |
38 | .trp_ps = 13910, | |
39 | .tras_ps = 34000, | |
40 | .trc_ps = 48910, | |
41 | .trfc_ps = 260000, | |
42 | .twtr_ps = 7500, | |
43 | .trtp_ps = 7500, | |
b5b06fb7 | 44 | .refresh_rate_ps = 7800000, |
0dd38a35 | 45 | .tfaw_ps = 35000, |
b5b06fb7 YS |
46 | }; |
47 | ||
48 | int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, | |
49 | unsigned int controller_number, | |
50 | unsigned int dimm_number) | |
51 | { | |
52 | const char dimm_model[] = "RAW timing DDR"; | |
53 | ||
54 | if ((controller_number == 0) && (dimm_number == 0)) { | |
55 | memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t)); | |
56 | memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); | |
57 | memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1); | |
58 | } | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
63 | struct board_specific_parameters { | |
64 | u32 n_ranks; | |
65 | u32 datarate_mhz_high; | |
66 | u32 clk_adjust; | |
67 | u32 wrlvl_start; | |
68 | u32 wrlvl_ctl_2; | |
69 | u32 wrlvl_ctl_3; | |
70 | u32 cpo; | |
71 | u32 write_data_delay; | |
0dd38a35 | 72 | u32 force_2t; |
b5b06fb7 YS |
73 | }; |
74 | ||
75 | /* | |
76 | * This table contains all valid speeds we want to override with board | |
77 | * specific parameters. datarate_mhz_high values need to be in ascending order | |
78 | * for each n_ranks group. | |
79 | */ | |
80 | static const struct board_specific_parameters udimm0[] = { | |
81 | /* | |
82 | * memory controller 0 | |
83 | * num| hi| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T | |
84 | * ranks| mhz|adjst| start | ctl2 | ctl3 | |delay | | |
85 | */ | |
86 | {2, 1350, 4, 7, 0x09080807, 0x07060607, 0xff, 2, 0}, | |
87 | {2, 1666, 4, 7, 0x09080806, 0x06050607, 0xff, 2, 0}, | |
88 | {2, 1900, 3, 7, 0x08070706, 0x06040507, 0xff, 2, 0}, | |
89 | {1, 1350, 4, 7, 0x09080807, 0x07060607, 0xff, 2, 0}, | |
90 | {1, 1700, 4, 7, 0x09080806, 0x06050607, 0xff, 2, 0}, | |
91 | {1, 1900, 3, 7, 0x08070706, 0x06040507, 0xff, 2, 0}, | |
92 | {} | |
93 | }; | |
94 | ||
95 | static const struct board_specific_parameters *udimms[] = { | |
96 | udimm0, | |
97 | }; | |
98 | ||
99 | void fsl_ddr_board_options(memctl_options_t *popts, | |
100 | dimm_params_t *pdimm, | |
101 | unsigned int ctrl_num) | |
102 | { | |
103 | const struct board_specific_parameters *pbsp, *pbsp_highest = NULL; | |
104 | ulong ddr_freq; | |
105 | ||
106 | if (ctrl_num > 2) { | |
107 | printf("Not supported controller number %d\n", ctrl_num); | |
108 | return; | |
109 | } | |
110 | if (!pdimm->n_ranks) | |
111 | return; | |
112 | ||
113 | pbsp = udimms[0]; | |
114 | ||
115 | ||
116 | /* Get clk_adjust, cpo, write_data_delay,2T, according to the board ddr | |
117 | * freqency and n_banks specified in board_specific_parameters table. | |
118 | */ | |
119 | ddr_freq = get_ddr_freq(0) / 1000000; | |
120 | while (pbsp->datarate_mhz_high) { | |
121 | if (pbsp->n_ranks == pdimm->n_ranks) { | |
122 | if (ddr_freq <= pbsp->datarate_mhz_high) { | |
123 | popts->cpo_override = pbsp->cpo; | |
124 | popts->write_data_delay = | |
125 | pbsp->write_data_delay; | |
126 | popts->clk_adjust = pbsp->clk_adjust; | |
127 | popts->wrlvl_start = pbsp->wrlvl_start; | |
128 | popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; | |
129 | popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; | |
0dd38a35 | 130 | popts->twot_en = pbsp->force_2t; |
b5b06fb7 YS |
131 | goto found; |
132 | } | |
133 | pbsp_highest = pbsp; | |
134 | } | |
135 | pbsp++; | |
136 | } | |
137 | ||
138 | if (pbsp_highest) { | |
139 | printf("Error: board specific timing not found " | |
140 | "for data rate %lu MT/s\n" | |
141 | "Trying to use the highest speed (%u) parameters\n", | |
142 | ddr_freq, pbsp_highest->datarate_mhz_high); | |
143 | popts->cpo_override = pbsp_highest->cpo; | |
144 | popts->write_data_delay = pbsp_highest->write_data_delay; | |
145 | popts->clk_adjust = pbsp_highest->clk_adjust; | |
146 | popts->wrlvl_start = pbsp_highest->wrlvl_start; | |
0dd38a35 | 147 | popts->twot_en = pbsp_highest->force_2t; |
b5b06fb7 YS |
148 | } else { |
149 | panic("DIMM is not supported by this board"); | |
150 | } | |
151 | found: | |
152 | /* | |
153 | * Factors to consider for half-strength driver enable: | |
154 | * - number of DIMMs installed | |
155 | */ | |
156 | popts->half_strength_driver_enable = 0; | |
157 | /* | |
158 | * Write leveling override | |
159 | */ | |
160 | popts->wrlvl_override = 1; | |
161 | popts->wrlvl_sample = 0xf; | |
162 | ||
163 | /* | |
164 | * Rtt and Rtt_WR override | |
165 | */ | |
166 | popts->rtt_override = 0; | |
167 | ||
168 | /* Enable ZQ calibration */ | |
169 | popts->zq_en = 1; | |
170 | ||
171 | /* DHC_EN =1, ODT = 75 Ohm */ | |
172 | popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm); | |
173 | popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm); | |
90101386 SL |
174 | |
175 | /* optimize cpo for erratum A-009942 */ | |
176 | popts->cpo_sample = 0x3e; | |
b5b06fb7 YS |
177 | } |
178 | ||
52c41180 | 179 | phys_size_t initdram(void) |
b5b06fb7 YS |
180 | { |
181 | phys_size_t dram_size; | |
182 | ||
c5dfe6ec | 183 | #if defined(CONFIG_SPL_BUILD) || !defined(CONFIG_RAMBOOT_PBL) |
b5b06fb7 | 184 | puts("Initializing....using SPD\n"); |
b5b06fb7 | 185 | dram_size = fsl_ddr_sdram(); |
c5dfe6ec PK |
186 | #else |
187 | dram_size = fsl_ddr_sdram_size(); | |
188 | #endif | |
53499282 SL |
189 | dram_size = setup_ddr_tlbs(dram_size / 0x100000); |
190 | dram_size *= 0x100000; | |
191 | ||
b5b06fb7 YS |
192 | return dram_size; |
193 | } | |
43104795 YS |
194 | |
195 | unsigned long long step_assign_addresses(fsl_ddr_info_t *pinfo, | |
196 | unsigned int dbw_cap_adj[]) | |
197 | { | |
198 | int i, j; | |
199 | unsigned long long total_mem, current_mem_base, total_ctlr_mem; | |
200 | unsigned long long rank_density, ctlr_density = 0; | |
201 | ||
202 | current_mem_base = 0ull; | |
203 | total_mem = 0; | |
204 | /* | |
205 | * This board has soldered DDR chips. DDRC1 has two rank. | |
206 | * DDRC2 has only one rank. | |
207 | * Assigning DDRC2 to lower address and DDRC1 to higher address. | |
208 | */ | |
209 | if (pinfo->memctl_opts[0].memctl_interleaving) { | |
210 | rank_density = pinfo->dimm_params[0][0].rank_density >> | |
211 | dbw_cap_adj[0]; | |
212 | ctlr_density = rank_density; | |
213 | ||
214 | debug("rank density is 0x%llx, ctlr density is 0x%llx\n", | |
215 | rank_density, ctlr_density); | |
51370d56 | 216 | for (i = CONFIG_SYS_NUM_DDR_CTLRS - 1; i >= 0; i--) { |
43104795 YS |
217 | switch (pinfo->memctl_opts[i].memctl_interleaving_mode) { |
218 | case FSL_DDR_CACHE_LINE_INTERLEAVING: | |
219 | case FSL_DDR_PAGE_INTERLEAVING: | |
220 | case FSL_DDR_BANK_INTERLEAVING: | |
221 | case FSL_DDR_SUPERBANK_INTERLEAVING: | |
222 | total_ctlr_mem = 2 * ctlr_density; | |
223 | break; | |
224 | default: | |
225 | panic("Unknown interleaving mode"); | |
226 | } | |
227 | pinfo->common_timing_params[i].base_address = | |
228 | current_mem_base; | |
229 | pinfo->common_timing_params[i].total_mem = | |
230 | total_ctlr_mem; | |
231 | total_mem = current_mem_base + total_ctlr_mem; | |
232 | debug("ctrl %d base 0x%llx\n", i, current_mem_base); | |
233 | debug("ctrl %d total 0x%llx\n", i, total_ctlr_mem); | |
234 | } | |
235 | } else { | |
236 | /* | |
237 | * Simple linear assignment if memory | |
238 | * controllers are not interleaved. | |
239 | */ | |
51370d56 | 240 | for (i = CONFIG_SYS_NUM_DDR_CTLRS - 1; i >= 0; i--) { |
43104795 YS |
241 | total_ctlr_mem = 0; |
242 | pinfo->common_timing_params[i].base_address = | |
243 | current_mem_base; | |
244 | for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { | |
245 | /* Compute DIMM base addresses. */ | |
246 | unsigned long long cap = | |
247 | pinfo->dimm_params[i][j].capacity; | |
248 | pinfo->dimm_params[i][j].base_address = | |
249 | current_mem_base; | |
250 | debug("ctrl %d dimm %d base 0x%llx\n", | |
251 | i, j, current_mem_base); | |
252 | current_mem_base += cap; | |
253 | total_ctlr_mem += cap; | |
254 | } | |
255 | debug("ctrl %d total 0x%llx\n", i, total_ctlr_mem); | |
256 | pinfo->common_timing_params[i].total_mem = | |
257 | total_ctlr_mem; | |
258 | total_mem += total_ctlr_mem; | |
259 | } | |
260 | } | |
261 | debug("Total mem by %s is 0x%llx\n", __func__, total_mem); | |
262 | ||
263 | return total_mem; | |
264 | } |