1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
|
/*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <asm/mmu.h>
#include <asm/immap_85xx.h>
#include <asm/processor.h>
#include <fsl_ddr_sdram.h>
#include <fsl_ddr_dimm_params.h>
#include <asm/io.h>
#include <asm/fsl_law.h>
#ifdef CONFIG_SYS_DDR_RAW_TIMING
#if defined(CONFIG_P1020RDB_PROTO) || \
defined(CONFIG_P1021RDB) || \
defined(CONFIG_P1020UTM)
/* Micron MT41J256M8_187E */
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 1073741824u,
.capacity = 1073741824u,
.primary_sdram_width = 32,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 15,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1870,
.caslat_x = 0x1e << 4, /* 5,6,7,8 */
.taa_ps = 13125,
.twr_ps = 15000,
.trcd_ps = 13125,
.trrd_ps = 7500,
.trp_ps = 13125,
.tras_ps = 37500,
.trc_ps = 50625,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 37500,
};
#elif defined(CONFIG_P2020RDB)
/* Micron MT41J128M16_15E */
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 1073741824u,
.capacity = 1073741824u,
.primary_sdram_width = 64,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 14,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1500,
.caslat_x = 0x7e << 4, /* 5,6,7,8,9,10 */
.taa_ps = 13500,
.twr_ps = 15000,
.trcd_ps = 13500,
.trrd_ps = 6000,
.trp_ps = 13500,
.tras_ps = 36000,
.trc_ps = 49500,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 30000,
};
#elif (defined(CONFIG_P1020MBG) || defined(CONFIG_P1020RDB_PD))
/* Micron MT41J512M8_187E */
dimm_params_t ddr_raw_timing = {
.n_ranks = 2,
.rank_density = 1073741824u,
.capacity = 2147483648u,
.primary_sdram_width = 32,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 15,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1870,
.caslat_x = 0x1e << 4, /* 5,6,7,8 */
.taa_ps = 13125,
.twr_ps = 15000,
.trcd_ps = 13125,
.trrd_ps = 7500,
.trp_ps = 13125,
.tras_ps = 37500,
.trc_ps = 50625,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 37500,
};
#elif defined(CONFIG_P1020RDB_PC)
/*
* Samsung K4B2G0846C-HCF8
* The following timing are for "downshift"
* i.e. to use CL9 part as CL7
* otherwise, tAA, tRCD, tRP will be 13500ps
* and tRC will be 49500ps
*/
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 1073741824u,
.capacity = 1073741824u,
.primary_sdram_width = 32,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 15,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1875,
.caslat_x = 0x1e << 4, /* 5,6,7,8 */
.taa_ps = 13125,
.twr_ps = 15000,
.trcd_ps = 13125,
.trrd_ps = 7500,
.trp_ps = 13125,
.tras_ps = 37500,
.trc_ps = 50625,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 37500,
};
#elif defined(CONFIG_P1024RDB) || \
defined(CONFIG_P1025RDB)
/*
* Samsung K4B2G0846C-HCH9
* The following timing are for "downshift"
* i.e. to use CL9 part as CL7
* otherwise, tAA, tRCD, tRP will be 13500ps
* and tRC will be 49500ps
*/
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 1073741824u,
.capacity = 1073741824u,
.primary_sdram_width = 32,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 15,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1500,
.caslat_x = 0x3e << 4, /* 5,6,7,8,9 */
.taa_ps = 13125,
.twr_ps = 15000,
.trcd_ps = 13125,
.trrd_ps = 6000,
.trp_ps = 13125,
.tras_ps = 36000,
.trc_ps = 49125,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 30000,
};
#else
#error Missing raw timing data for this board
#endif
int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
unsigned int controller_number,
unsigned int dimm_number)
{
const char dimm_model[] = "Fixed DDR on board";
if ((controller_number == 0) && (dimm_number == 0)) {
memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t));
memset(pdimm->mpart, 0, sizeof(pdimm->mpart));
memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1);
}
return 0;
}
#endif /* CONFIG_SYS_DDR_RAW_TIMING */
#ifdef CONFIG_SYS_DDR_CS0_BNDS
/* Fixed sdram init -- doesn't use serial presence detect. */
phys_size_t fixed_sdram(void)
{
sys_info_t sysinfo;
char buf[32];
size_t ddr_size;
fsl_ddr_cfg_regs_t ddr_cfg_regs = {
.cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS,
.cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG,
.cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2,
#if CONFIG_CHIP_SELECTS_PER_CTRL > 1
.cs[1].bnds = CONFIG_SYS_DDR_CS1_BNDS,
.cs[1].config = CONFIG_SYS_DDR_CS1_CONFIG,
.cs[1].config_2 = CONFIG_SYS_DDR_CS1_CONFIG_2,
#endif
.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3,
.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0,
.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1,
.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2,
.ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL,
.ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2,
.ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1,
.ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2,
.ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL,
.ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL,
.ddr_data_init = CONFIG_SYS_DDR_DATA_INIT,
.ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL,
.ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR,
.ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR,
.timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4,
.timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5,
.ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL,
.ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL,
.ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR,
.ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1,
.ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2
};
get_sys_info(&sysinfo);
printf("Configuring DDR for %s MT/s data rate\n",
strmhz(buf, sysinfo.freq_ddrbus));
ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0, 0);
if (set_ddr_laws(CONFIG_SYS_DDR_SDRAM_BASE,
ddr_size, LAW_TRGT_IF_DDR_1) < 0) {
printf("ERROR setting Local Access Windows for DDR\n");
return 0;
};
return ddr_size;
}
#endif
void fsl_ddr_board_options(memctl_options_t *popts,
dimm_params_t *pdimm,
unsigned int ctrl_num)
{
int i;
popts->clk_adjust = 6;
popts->cpo_override = 0x1f;
popts->write_data_delay = 2;
popts->half_strength_driver_enable = 1;
/* Write leveling override */
popts->wrlvl_en = 1;
popts->wrlvl_override = 1;
popts->wrlvl_sample = 0xf;
popts->wrlvl_start = 0x8;
popts->trwt_override = 1;
popts->trwt = 0;
if (pdimm->primary_sdram_width == 64)
popts->data_bus_width = 0;
else if (pdimm->primary_sdram_width == 32)
popts->data_bus_width = 1;
else
printf("Error in DDR bus width configuration!\n");
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER;
popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
}
}
|
