xref: /openbmc/u-boot/drivers/ddr/fsl/interactive.c (revision 2bb1cd53)
1 /*
2  * Copyright 2010-2014 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 /*
8  * Generic driver for Freescale DDR/DDR2/DDR3 memory controller.
9  * Based on code from spd_sdram.c
10  * Author: James Yang [at freescale.com]
11  *         York Sun [at freescale.com]
12  */
13 
14 #include <common.h>
15 #include <cli.h>
16 #include <linux/ctype.h>
17 #include <asm/types.h>
18 #include <asm/io.h>
19 
20 #include <fsl_ddr_sdram.h>
21 #include <fsl_ddr.h>
22 
23 /* Option parameter Structures */
24 struct options_string {
25 	const char *option_name;
26 	size_t offset;
27 	unsigned int size;
28 	const char printhex;
29 };
30 
31 static unsigned int picos_to_mhz(unsigned int picos)
32 {
33 	return 1000000 / picos;
34 }
35 
36 static void print_option_table(const struct options_string *table,
37 			 int table_size,
38 			 const void *base)
39 {
40 	unsigned int i;
41 	unsigned int *ptr;
42 	unsigned long long *ptr_l;
43 
44 	for (i = 0; i < table_size; i++) {
45 		switch (table[i].size) {
46 		case 4:
47 			ptr = (unsigned int *) (base + table[i].offset);
48 			if (table[i].printhex) {
49 				printf("%s = 0x%08X\n",
50 					table[i].option_name, *ptr);
51 			} else {
52 				printf("%s = %u\n",
53 					table[i].option_name, *ptr);
54 			}
55 			break;
56 		case 8:
57 			ptr_l = (unsigned long long *) (base + table[i].offset);
58 			printf("%s = %llu\n",
59 				table[i].option_name, *ptr_l);
60 			break;
61 		default:
62 			printf("Unrecognized size!\n");
63 			break;
64 		}
65 	}
66 }
67 
68 static int handle_option_table(const struct options_string *table,
69 			 int table_size,
70 			 void *base,
71 			 const char *opt,
72 			 const char *val)
73 {
74 	unsigned int i;
75 	unsigned int value, *ptr;
76 	unsigned long long value_l, *ptr_l;
77 
78 	for (i = 0; i < table_size; i++) {
79 		if (strcmp(table[i].option_name, opt) != 0)
80 			continue;
81 		switch (table[i].size) {
82 		case 4:
83 			value = simple_strtoul(val, NULL, 0);
84 			ptr = base + table[i].offset;
85 			*ptr = value;
86 			break;
87 		case 8:
88 			value_l = simple_strtoull(val, NULL, 0);
89 			ptr_l = base + table[i].offset;
90 			*ptr_l = value_l;
91 			break;
92 		default:
93 			printf("Unrecognized size!\n");
94 			break;
95 		}
96 		return 1;
97 	}
98 
99 	return 0;
100 }
101 
102 static void fsl_ddr_generic_edit(void *pdata,
103 			   void *pend,
104 			   unsigned int element_size,
105 			   unsigned int element_num,
106 			   unsigned int value)
107 {
108 	char *pcdata = (char *)pdata;		/* BIG ENDIAN ONLY */
109 
110 	pcdata += element_num * element_size;
111 	if ((pcdata + element_size) > (char *) pend) {
112 		printf("trying to write past end of data\n");
113 		return;
114 	}
115 
116 	switch (element_size) {
117 	case 1:
118 		__raw_writeb(value, pcdata);
119 		break;
120 	case 2:
121 		__raw_writew(value, pcdata);
122 		break;
123 	case 4:
124 		__raw_writel(value, pcdata);
125 		break;
126 	default:
127 		printf("unexpected element size %u\n", element_size);
128 		break;
129 	}
130 }
131 
132 static void fsl_ddr_spd_edit(fsl_ddr_info_t *pinfo,
133 		       unsigned int ctrl_num,
134 		       unsigned int dimm_num,
135 		       unsigned int element_num,
136 		       unsigned int value)
137 {
138 	generic_spd_eeprom_t *pspd;
139 
140 	pspd = &(pinfo->spd_installed_dimms[ctrl_num][dimm_num]);
141 	fsl_ddr_generic_edit(pspd, pspd + 1, 1, element_num, value);
142 }
143 
144 #define COMMON_TIMING(x) {#x, offsetof(common_timing_params_t, x), \
145 	sizeof((common_timing_params_t *)0)->x, 0}
146 
147 static void lowest_common_dimm_parameters_edit(fsl_ddr_info_t *pinfo,
148 					unsigned int ctrl_num,
149 					const char *optname_str,
150 					const char *value_str)
151 {
152 	common_timing_params_t *p = &pinfo->common_timing_params[ctrl_num];
153 
154 	static const struct options_string options[] = {
155 		COMMON_TIMING(tckmin_x_ps),
156 		COMMON_TIMING(tckmax_ps),
157 		COMMON_TIMING(taamin_ps),
158 		COMMON_TIMING(trcd_ps),
159 		COMMON_TIMING(trp_ps),
160 		COMMON_TIMING(tras_ps),
161 
162 #ifdef CONFIG_SYS_FSL_DDR4
163 		COMMON_TIMING(trfc1_ps),
164 		COMMON_TIMING(trfc2_ps),
165 		COMMON_TIMING(trfc4_ps),
166 		COMMON_TIMING(trrds_ps),
167 		COMMON_TIMING(trrdl_ps),
168 		COMMON_TIMING(tccdl_ps),
169 #else
170 		COMMON_TIMING(twtr_ps),
171 		COMMON_TIMING(trfc_ps),
172 		COMMON_TIMING(trrd_ps),
173 		COMMON_TIMING(trtp_ps),
174 #endif
175 		COMMON_TIMING(twr_ps),
176 		COMMON_TIMING(trc_ps),
177 		COMMON_TIMING(refresh_rate_ps),
178 		COMMON_TIMING(extended_op_srt),
179 #if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2)
180 		COMMON_TIMING(tis_ps),
181 		COMMON_TIMING(tih_ps),
182 		COMMON_TIMING(tds_ps),
183 		COMMON_TIMING(tdh_ps),
184 		COMMON_TIMING(tdqsq_max_ps),
185 		COMMON_TIMING(tqhs_ps),
186 #endif
187 		COMMON_TIMING(ndimms_present),
188 		COMMON_TIMING(lowest_common_spd_caslat),
189 		COMMON_TIMING(highest_common_derated_caslat),
190 		COMMON_TIMING(additive_latency),
191 		COMMON_TIMING(all_dimms_burst_lengths_bitmask),
192 		COMMON_TIMING(all_dimms_registered),
193 		COMMON_TIMING(all_dimms_unbuffered),
194 		COMMON_TIMING(all_dimms_ecc_capable),
195 		COMMON_TIMING(total_mem),
196 		COMMON_TIMING(base_address),
197 	};
198 	static const unsigned int n_opts = ARRAY_SIZE(options);
199 
200 	if (handle_option_table(options, n_opts, p, optname_str, value_str))
201 		return;
202 
203 	printf("Error: couldn't find option string %s\n", optname_str);
204 }
205 
206 #define DIMM_PARM(x) {#x, offsetof(dimm_params_t, x), \
207 	sizeof((dimm_params_t *)0)->x, 0}
208 
209 static void fsl_ddr_dimm_parameters_edit(fsl_ddr_info_t *pinfo,
210 				   unsigned int ctrl_num,
211 				   unsigned int dimm_num,
212 				   const char *optname_str,
213 				   const char *value_str)
214 {
215 	dimm_params_t *p = &(pinfo->dimm_params[ctrl_num][dimm_num]);
216 
217 	static const struct options_string options[] = {
218 		DIMM_PARM(n_ranks),
219 		DIMM_PARM(data_width),
220 		DIMM_PARM(primary_sdram_width),
221 		DIMM_PARM(ec_sdram_width),
222 		DIMM_PARM(registered_dimm),
223 		DIMM_PARM(device_width),
224 
225 		DIMM_PARM(n_row_addr),
226 		DIMM_PARM(n_col_addr),
227 		DIMM_PARM(edc_config),
228 #ifdef CONFIG_SYS_FSL_DDR4
229 		DIMM_PARM(bank_addr_bits),
230 		DIMM_PARM(bank_group_bits),
231 #else
232 		DIMM_PARM(n_banks_per_sdram_device),
233 #endif
234 		DIMM_PARM(burst_lengths_bitmask),
235 		DIMM_PARM(row_density),
236 
237 		DIMM_PARM(tckmin_x_ps),
238 		DIMM_PARM(tckmin_x_minus_1_ps),
239 		DIMM_PARM(tckmin_x_minus_2_ps),
240 		DIMM_PARM(tckmax_ps),
241 
242 		DIMM_PARM(caslat_x),
243 		DIMM_PARM(caslat_x_minus_1),
244 		DIMM_PARM(caslat_x_minus_2),
245 
246 		DIMM_PARM(caslat_lowest_derated),
247 
248 		DIMM_PARM(trcd_ps),
249 		DIMM_PARM(trp_ps),
250 		DIMM_PARM(tras_ps),
251 #ifdef CONFIG_SYS_FSL_DDR4
252 		DIMM_PARM(trfc1_ps),
253 		DIMM_PARM(trfc2_ps),
254 		DIMM_PARM(trfc4_ps),
255 		DIMM_PARM(trrds_ps),
256 		DIMM_PARM(trrdl_ps),
257 		DIMM_PARM(tccdl_ps),
258 #else
259 		DIMM_PARM(twr_ps),
260 		DIMM_PARM(twtr_ps),
261 		DIMM_PARM(trfc_ps),
262 		DIMM_PARM(trrd_ps),
263 		DIMM_PARM(trtp_ps),
264 #endif
265 		DIMM_PARM(trc_ps),
266 		DIMM_PARM(refresh_rate_ps),
267 		DIMM_PARM(extended_op_srt),
268 
269 #if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2)
270 		DIMM_PARM(tis_ps),
271 		DIMM_PARM(tih_ps),
272 		DIMM_PARM(tds_ps),
273 		DIMM_PARM(tdh_ps),
274 		DIMM_PARM(tdqsq_max_ps),
275 		DIMM_PARM(tqhs_ps),
276 #endif
277 
278 		DIMM_PARM(rank_density),
279 		DIMM_PARM(capacity),
280 		DIMM_PARM(base_address),
281 	};
282 
283 	static const unsigned int n_opts = ARRAY_SIZE(options);
284 
285 	if (handle_option_table(options, n_opts, p, optname_str, value_str))
286 		return;
287 
288 	printf("couldn't find option string %s\n", optname_str);
289 }
290 
291 static void print_dimm_parameters(const dimm_params_t *pdimm)
292 {
293 	static const struct options_string options[] = {
294 		DIMM_PARM(n_ranks),
295 		DIMM_PARM(data_width),
296 		DIMM_PARM(primary_sdram_width),
297 		DIMM_PARM(ec_sdram_width),
298 		DIMM_PARM(registered_dimm),
299 		DIMM_PARM(device_width),
300 
301 		DIMM_PARM(n_row_addr),
302 		DIMM_PARM(n_col_addr),
303 		DIMM_PARM(edc_config),
304 #ifdef CONFIG_SYS_FSL_DDR4
305 		DIMM_PARM(bank_addr_bits),
306 		DIMM_PARM(bank_group_bits),
307 #else
308 		DIMM_PARM(n_banks_per_sdram_device),
309 #endif
310 
311 		DIMM_PARM(tckmin_x_ps),
312 		DIMM_PARM(tckmin_x_minus_1_ps),
313 		DIMM_PARM(tckmin_x_minus_2_ps),
314 		DIMM_PARM(tckmax_ps),
315 
316 		DIMM_PARM(caslat_x),
317 		DIMM_PARM(taa_ps),
318 		DIMM_PARM(caslat_x_minus_1),
319 		DIMM_PARM(caslat_x_minus_2),
320 		DIMM_PARM(caslat_lowest_derated),
321 
322 		DIMM_PARM(trcd_ps),
323 		DIMM_PARM(trp_ps),
324 		DIMM_PARM(tras_ps),
325 #ifdef CONFIG_SYS_FSL_DDR4
326 		DIMM_PARM(trfc1_ps),
327 		DIMM_PARM(trfc2_ps),
328 		DIMM_PARM(trfc4_ps),
329 		DIMM_PARM(trrds_ps),
330 		DIMM_PARM(trrdl_ps),
331 		DIMM_PARM(tccdl_ps),
332 #else
333 		DIMM_PARM(twr_ps),
334 		DIMM_PARM(twtr_ps),
335 		DIMM_PARM(trfc_ps),
336 		DIMM_PARM(trrd_ps),
337 		DIMM_PARM(trtp_ps),
338 #endif
339 		DIMM_PARM(trc_ps),
340 		DIMM_PARM(refresh_rate_ps),
341 
342 #if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2)
343 		DIMM_PARM(tis_ps),
344 		DIMM_PARM(tih_ps),
345 		DIMM_PARM(tds_ps),
346 		DIMM_PARM(tdh_ps),
347 		DIMM_PARM(tdqsq_max_ps),
348 		DIMM_PARM(tqhs_ps),
349 #endif
350 	};
351 	static const unsigned int n_opts = ARRAY_SIZE(options);
352 
353 	if (pdimm->n_ranks == 0) {
354 		printf("DIMM not present\n");
355 		return;
356 	}
357 	printf("DIMM organization parameters:\n");
358 	printf("module part name = %s\n", pdimm->mpart);
359 	printf("rank_density = %llu bytes (%llu megabytes)\n",
360 	       pdimm->rank_density, pdimm->rank_density / 0x100000);
361 	printf("capacity = %llu bytes (%llu megabytes)\n",
362 	       pdimm->capacity, pdimm->capacity / 0x100000);
363 	printf("burst_lengths_bitmask = %02X\n",
364 	       pdimm->burst_lengths_bitmask);
365 	printf("base_addresss = %llu (%08llX %08llX)\n",
366 	       pdimm->base_address,
367 	       (pdimm->base_address >> 32),
368 	       pdimm->base_address & 0xFFFFFFFF);
369 	print_option_table(options, n_opts, pdimm);
370 }
371 
372 static void print_lowest_common_dimm_parameters(
373 		const common_timing_params_t *plcd_dimm_params)
374 {
375 	static const struct options_string options[] = {
376 		COMMON_TIMING(taamin_ps),
377 		COMMON_TIMING(trcd_ps),
378 		COMMON_TIMING(trp_ps),
379 		COMMON_TIMING(tras_ps),
380 #ifdef CONFIG_SYS_FSL_DDR4
381 		COMMON_TIMING(trfc1_ps),
382 		COMMON_TIMING(trfc2_ps),
383 		COMMON_TIMING(trfc4_ps),
384 		COMMON_TIMING(trrds_ps),
385 		COMMON_TIMING(trrdl_ps),
386 		COMMON_TIMING(tccdl_ps),
387 #else
388 		COMMON_TIMING(twtr_ps),
389 		COMMON_TIMING(trfc_ps),
390 		COMMON_TIMING(trrd_ps),
391 		COMMON_TIMING(trtp_ps),
392 #endif
393 		COMMON_TIMING(twr_ps),
394 		COMMON_TIMING(trc_ps),
395 		COMMON_TIMING(refresh_rate_ps),
396 		COMMON_TIMING(extended_op_srt),
397 #if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2)
398 		COMMON_TIMING(tis_ps),
399 		COMMON_TIMING(tih_ps),
400 		COMMON_TIMING(tds_ps),
401 		COMMON_TIMING(tdh_ps),
402 		COMMON_TIMING(tdqsq_max_ps),
403 		COMMON_TIMING(tqhs_ps),
404 #endif
405 		COMMON_TIMING(lowest_common_spd_caslat),
406 		COMMON_TIMING(highest_common_derated_caslat),
407 		COMMON_TIMING(additive_latency),
408 		COMMON_TIMING(ndimms_present),
409 		COMMON_TIMING(all_dimms_registered),
410 		COMMON_TIMING(all_dimms_unbuffered),
411 		COMMON_TIMING(all_dimms_ecc_capable),
412 	};
413 	static const unsigned int n_opts = ARRAY_SIZE(options);
414 
415 	/* Clock frequencies */
416 	printf("tckmin_x_ps = %u (%u MHz)\n",
417 	       plcd_dimm_params->tckmin_x_ps,
418 	       picos_to_mhz(plcd_dimm_params->tckmin_x_ps));
419 	printf("tckmax_ps = %u (%u MHz)\n",
420 	       plcd_dimm_params->tckmax_ps,
421 	       picos_to_mhz(plcd_dimm_params->tckmax_ps));
422 	printf("all_dimms_burst_lengths_bitmask = %02X\n",
423 	       plcd_dimm_params->all_dimms_burst_lengths_bitmask);
424 
425 	print_option_table(options, n_opts, plcd_dimm_params);
426 
427 	printf("total_mem = %llu (%llu megabytes)\n",
428 	       plcd_dimm_params->total_mem,
429 	       plcd_dimm_params->total_mem / 0x100000);
430 	printf("base_address = %llu (%llu megabytes)\n",
431 	       plcd_dimm_params->base_address,
432 	       plcd_dimm_params->base_address / 0x100000);
433 }
434 
435 #define CTRL_OPTIONS(x) {#x, offsetof(memctl_options_t, x), \
436 	sizeof((memctl_options_t *)0)->x, 0}
437 #define CTRL_OPTIONS_CS(x, y) {"cs" #x "_" #y, \
438 	offsetof(memctl_options_t, cs_local_opts[x].y), \
439 	sizeof((memctl_options_t *)0)->cs_local_opts[x].y, 0}
440 
441 static void fsl_ddr_options_edit(fsl_ddr_info_t *pinfo,
442 			   unsigned int ctl_num,
443 			   const char *optname_str,
444 			   const char *value_str)
445 {
446 	memctl_options_t *p = &(pinfo->memctl_opts[ctl_num]);
447 	/*
448 	 * This array all on the stack and *computed* each time this
449 	 * function is rung.
450 	 */
451 	static const struct options_string options[] = {
452 		CTRL_OPTIONS_CS(0, odt_rd_cfg),
453 		CTRL_OPTIONS_CS(0, odt_wr_cfg),
454 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 1)
455 		CTRL_OPTIONS_CS(1, odt_rd_cfg),
456 		CTRL_OPTIONS_CS(1, odt_wr_cfg),
457 #endif
458 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
459 		CTRL_OPTIONS_CS(2, odt_rd_cfg),
460 		CTRL_OPTIONS_CS(2, odt_wr_cfg),
461 #endif
462 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
463 		CTRL_OPTIONS_CS(3, odt_rd_cfg),
464 		CTRL_OPTIONS_CS(3, odt_wr_cfg),
465 #endif
466 #if defined(CONFIG_SYS_FSL_DDR3)
467 		CTRL_OPTIONS_CS(0, odt_rtt_norm),
468 		CTRL_OPTIONS_CS(0, odt_rtt_wr),
469 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 1)
470 		CTRL_OPTIONS_CS(1, odt_rtt_norm),
471 		CTRL_OPTIONS_CS(1, odt_rtt_wr),
472 #endif
473 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
474 		CTRL_OPTIONS_CS(2, odt_rtt_norm),
475 		CTRL_OPTIONS_CS(2, odt_rtt_wr),
476 #endif
477 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
478 		CTRL_OPTIONS_CS(3, odt_rtt_norm),
479 		CTRL_OPTIONS_CS(3, odt_rtt_wr),
480 #endif
481 #endif
482 		CTRL_OPTIONS(memctl_interleaving),
483 		CTRL_OPTIONS(memctl_interleaving_mode),
484 		CTRL_OPTIONS(ba_intlv_ctl),
485 		CTRL_OPTIONS(ecc_mode),
486 		CTRL_OPTIONS(ecc_init_using_memctl),
487 		CTRL_OPTIONS(dqs_config),
488 		CTRL_OPTIONS(self_refresh_in_sleep),
489 		CTRL_OPTIONS(dynamic_power),
490 		CTRL_OPTIONS(data_bus_width),
491 		CTRL_OPTIONS(burst_length),
492 		CTRL_OPTIONS(cas_latency_override),
493 		CTRL_OPTIONS(cas_latency_override_value),
494 		CTRL_OPTIONS(use_derated_caslat),
495 		CTRL_OPTIONS(additive_latency_override),
496 		CTRL_OPTIONS(additive_latency_override_value),
497 		CTRL_OPTIONS(clk_adjust),
498 		CTRL_OPTIONS(cpo_override),
499 		CTRL_OPTIONS(write_data_delay),
500 		CTRL_OPTIONS(half_strength_driver_enable),
501 
502 		/*
503 		 * These can probably be changed to 2T_EN and 3T_EN
504 		 * (using a leading numerical character) without problem
505 		 */
506 		CTRL_OPTIONS(twot_en),
507 		CTRL_OPTIONS(threet_en),
508 		CTRL_OPTIONS(ap_en),
509 		CTRL_OPTIONS(x4_en),
510 		CTRL_OPTIONS(bstopre),
511 		CTRL_OPTIONS(wrlvl_override),
512 		CTRL_OPTIONS(wrlvl_sample),
513 		CTRL_OPTIONS(wrlvl_start),
514 		CTRL_OPTIONS(cswl_override),
515 		CTRL_OPTIONS(rcw_override),
516 		CTRL_OPTIONS(rcw_1),
517 		CTRL_OPTIONS(rcw_2),
518 		CTRL_OPTIONS(ddr_cdr1),
519 		CTRL_OPTIONS(ddr_cdr2),
520 		CTRL_OPTIONS(tfaw_window_four_activates_ps),
521 		CTRL_OPTIONS(trwt_override),
522 		CTRL_OPTIONS(trwt),
523 		CTRL_OPTIONS(rtt_override),
524 		CTRL_OPTIONS(rtt_override_value),
525 		CTRL_OPTIONS(rtt_wr_override_value),
526 	};
527 
528 	static const unsigned int n_opts = ARRAY_SIZE(options);
529 
530 	if (handle_option_table(options, n_opts, p,
531 					optname_str, value_str))
532 		return;
533 
534 	printf("couldn't find option string %s\n", optname_str);
535 }
536 
537 #define CFG_REGS(x) {#x, offsetof(fsl_ddr_cfg_regs_t, x), \
538 	sizeof((fsl_ddr_cfg_regs_t *)0)->x, 1}
539 #define CFG_REGS_CS(x, y) {"cs" #x "_" #y, \
540 	offsetof(fsl_ddr_cfg_regs_t, cs[x].y), \
541 	sizeof((fsl_ddr_cfg_regs_t *)0)->cs[x].y, 1}
542 
543 static void print_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr)
544 {
545 	unsigned int i;
546 	static const struct options_string options[] = {
547 		CFG_REGS_CS(0, bnds),
548 		CFG_REGS_CS(0, config),
549 		CFG_REGS_CS(0, config_2),
550 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 1)
551 		CFG_REGS_CS(1, bnds),
552 		CFG_REGS_CS(1, config),
553 		CFG_REGS_CS(1, config_2),
554 #endif
555 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
556 		CFG_REGS_CS(2, bnds),
557 		CFG_REGS_CS(2, config),
558 		CFG_REGS_CS(2, config_2),
559 #endif
560 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
561 		CFG_REGS_CS(3, bnds),
562 		CFG_REGS_CS(3, config),
563 		CFG_REGS_CS(3, config_2),
564 #endif
565 		CFG_REGS(timing_cfg_3),
566 		CFG_REGS(timing_cfg_0),
567 		CFG_REGS(timing_cfg_1),
568 		CFG_REGS(timing_cfg_2),
569 		CFG_REGS(ddr_sdram_cfg),
570 		CFG_REGS(ddr_sdram_cfg_2),
571 		CFG_REGS(ddr_sdram_cfg_3),
572 		CFG_REGS(ddr_sdram_mode),
573 		CFG_REGS(ddr_sdram_mode_2),
574 		CFG_REGS(ddr_sdram_mode_3),
575 		CFG_REGS(ddr_sdram_mode_4),
576 		CFG_REGS(ddr_sdram_mode_5),
577 		CFG_REGS(ddr_sdram_mode_6),
578 		CFG_REGS(ddr_sdram_mode_7),
579 		CFG_REGS(ddr_sdram_mode_8),
580 #ifdef CONFIG_SYS_FSL_DDR4
581 		CFG_REGS(ddr_sdram_mode_9),
582 		CFG_REGS(ddr_sdram_mode_10),
583 		CFG_REGS(ddr_sdram_mode_11),
584 		CFG_REGS(ddr_sdram_mode_12),
585 		CFG_REGS(ddr_sdram_mode_13),
586 		CFG_REGS(ddr_sdram_mode_14),
587 		CFG_REGS(ddr_sdram_mode_15),
588 		CFG_REGS(ddr_sdram_mode_16),
589 #endif
590 		CFG_REGS(ddr_sdram_interval),
591 		CFG_REGS(ddr_data_init),
592 		CFG_REGS(ddr_sdram_clk_cntl),
593 		CFG_REGS(ddr_init_addr),
594 		CFG_REGS(ddr_init_ext_addr),
595 		CFG_REGS(timing_cfg_4),
596 		CFG_REGS(timing_cfg_5),
597 #ifdef CONFIG_SYS_FSL_DDR4
598 		CFG_REGS(timing_cfg_6),
599 		CFG_REGS(timing_cfg_7),
600 		CFG_REGS(timing_cfg_8),
601 		CFG_REGS(timing_cfg_9),
602 #endif
603 		CFG_REGS(ddr_zq_cntl),
604 		CFG_REGS(ddr_wrlvl_cntl),
605 		CFG_REGS(ddr_wrlvl_cntl_2),
606 		CFG_REGS(ddr_wrlvl_cntl_3),
607 		CFG_REGS(ddr_sr_cntr),
608 		CFG_REGS(ddr_sdram_rcw_1),
609 		CFG_REGS(ddr_sdram_rcw_2),
610 		CFG_REGS(ddr_cdr1),
611 		CFG_REGS(ddr_cdr2),
612 		CFG_REGS(dq_map_0),
613 		CFG_REGS(dq_map_1),
614 		CFG_REGS(dq_map_2),
615 		CFG_REGS(dq_map_3),
616 		CFG_REGS(err_disable),
617 		CFG_REGS(err_int_en),
618 		CFG_REGS(ddr_eor),
619 	};
620 	static const unsigned int n_opts = ARRAY_SIZE(options);
621 
622 	print_option_table(options, n_opts, ddr);
623 
624 	for (i = 0; i < 32; i++)
625 		printf("debug_%02d = 0x%08X\n", i+1, ddr->debug[i]);
626 }
627 
628 static void fsl_ddr_regs_edit(fsl_ddr_info_t *pinfo,
629 			unsigned int ctrl_num,
630 			const char *regname,
631 			const char *value_str)
632 {
633 	unsigned int i;
634 	fsl_ddr_cfg_regs_t *ddr;
635 	char buf[20];
636 	static const struct options_string options[] = {
637 		CFG_REGS_CS(0, bnds),
638 		CFG_REGS_CS(0, config),
639 		CFG_REGS_CS(0, config_2),
640 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 1)
641 		CFG_REGS_CS(1, bnds),
642 		CFG_REGS_CS(1, config),
643 		CFG_REGS_CS(1, config_2),
644 #endif
645 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
646 		CFG_REGS_CS(2, bnds),
647 		CFG_REGS_CS(2, config),
648 		CFG_REGS_CS(2, config_2),
649 #endif
650 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 3)
651 		CFG_REGS_CS(3, bnds),
652 		CFG_REGS_CS(3, config),
653 		CFG_REGS_CS(3, config_2),
654 #endif
655 		CFG_REGS(timing_cfg_3),
656 		CFG_REGS(timing_cfg_0),
657 		CFG_REGS(timing_cfg_1),
658 		CFG_REGS(timing_cfg_2),
659 		CFG_REGS(ddr_sdram_cfg),
660 		CFG_REGS(ddr_sdram_cfg_2),
661 		CFG_REGS(ddr_sdram_cfg_3),
662 		CFG_REGS(ddr_sdram_mode),
663 		CFG_REGS(ddr_sdram_mode_2),
664 		CFG_REGS(ddr_sdram_mode_3),
665 		CFG_REGS(ddr_sdram_mode_4),
666 		CFG_REGS(ddr_sdram_mode_5),
667 		CFG_REGS(ddr_sdram_mode_6),
668 		CFG_REGS(ddr_sdram_mode_7),
669 		CFG_REGS(ddr_sdram_mode_8),
670 #ifdef CONFIG_SYS_FSL_DDR4
671 		CFG_REGS(ddr_sdram_mode_9),
672 		CFG_REGS(ddr_sdram_mode_10),
673 		CFG_REGS(ddr_sdram_mode_11),
674 		CFG_REGS(ddr_sdram_mode_12),
675 		CFG_REGS(ddr_sdram_mode_13),
676 		CFG_REGS(ddr_sdram_mode_14),
677 		CFG_REGS(ddr_sdram_mode_15),
678 		CFG_REGS(ddr_sdram_mode_16),
679 #endif
680 		CFG_REGS(ddr_sdram_interval),
681 		CFG_REGS(ddr_data_init),
682 		CFG_REGS(ddr_sdram_clk_cntl),
683 		CFG_REGS(ddr_init_addr),
684 		CFG_REGS(ddr_init_ext_addr),
685 		CFG_REGS(timing_cfg_4),
686 		CFG_REGS(timing_cfg_5),
687 #ifdef CONFIG_SYS_FSL_DDR4
688 		CFG_REGS(timing_cfg_6),
689 		CFG_REGS(timing_cfg_7),
690 		CFG_REGS(timing_cfg_8),
691 		CFG_REGS(timing_cfg_9),
692 #endif
693 		CFG_REGS(ddr_zq_cntl),
694 		CFG_REGS(ddr_wrlvl_cntl),
695 		CFG_REGS(ddr_wrlvl_cntl_2),
696 		CFG_REGS(ddr_wrlvl_cntl_3),
697 		CFG_REGS(ddr_sr_cntr),
698 		CFG_REGS(ddr_sdram_rcw_1),
699 		CFG_REGS(ddr_sdram_rcw_2),
700 		CFG_REGS(ddr_cdr1),
701 		CFG_REGS(ddr_cdr2),
702 		CFG_REGS(dq_map_0),
703 		CFG_REGS(dq_map_1),
704 		CFG_REGS(dq_map_2),
705 		CFG_REGS(dq_map_3),
706 		CFG_REGS(err_disable),
707 		CFG_REGS(err_int_en),
708 		CFG_REGS(ddr_sdram_rcw_2),
709 		CFG_REGS(ddr_sdram_rcw_2),
710 		CFG_REGS(ddr_eor),
711 	};
712 	static const unsigned int n_opts = ARRAY_SIZE(options);
713 
714 	debug("fsl_ddr_regs_edit: ctrl_num = %u, "
715 		"regname = %s, value = %s\n",
716 		ctrl_num, regname, value_str);
717 	if (ctrl_num > CONFIG_NUM_DDR_CONTROLLERS)
718 		return;
719 
720 	ddr = &(pinfo->fsl_ddr_config_reg[ctrl_num]);
721 
722 	if (handle_option_table(options, n_opts, ddr, regname, value_str))
723 		return;
724 
725 	for (i = 0; i < 32; i++) {
726 		unsigned int value = simple_strtoul(value_str, NULL, 0);
727 		sprintf(buf, "debug_%u", i + 1);
728 		if (strcmp(buf, regname) == 0) {
729 			ddr->debug[i] = value;
730 			return;
731 		}
732 	}
733 	printf("Error: couldn't find register string %s\n", regname);
734 }
735 
736 #define CTRL_OPTIONS_HEX(x) {#x, offsetof(memctl_options_t, x), \
737 	sizeof((memctl_options_t *)0)->x, 1}
738 
739 static void print_memctl_options(const memctl_options_t *popts)
740 {
741 	static const struct options_string options[] = {
742 		CTRL_OPTIONS_CS(0, odt_rd_cfg),
743 		CTRL_OPTIONS_CS(0, odt_wr_cfg),
744 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 1)
745 		CTRL_OPTIONS_CS(1, odt_rd_cfg),
746 		CTRL_OPTIONS_CS(1, odt_wr_cfg),
747 #endif
748 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
749 		CTRL_OPTIONS_CS(2, odt_rd_cfg),
750 		CTRL_OPTIONS_CS(2, odt_wr_cfg),
751 #endif
752 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 3)
753 		CTRL_OPTIONS_CS(3, odt_rd_cfg),
754 		CTRL_OPTIONS_CS(3, odt_wr_cfg),
755 #endif
756 #if defined(CONFIG_SYS_FSL_DDR3)
757 		CTRL_OPTIONS_CS(0, odt_rtt_norm),
758 		CTRL_OPTIONS_CS(0, odt_rtt_wr),
759 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 1)
760 		CTRL_OPTIONS_CS(1, odt_rtt_norm),
761 		CTRL_OPTIONS_CS(1, odt_rtt_wr),
762 #endif
763 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
764 		CTRL_OPTIONS_CS(2, odt_rtt_norm),
765 		CTRL_OPTIONS_CS(2, odt_rtt_wr),
766 #endif
767 #if (CONFIG_CHIP_SELECTS_PER_CTRL > 3)
768 		CTRL_OPTIONS_CS(3, odt_rtt_norm),
769 		CTRL_OPTIONS_CS(3, odt_rtt_wr),
770 #endif
771 #endif
772 		CTRL_OPTIONS(memctl_interleaving),
773 		CTRL_OPTIONS(memctl_interleaving_mode),
774 		CTRL_OPTIONS_HEX(ba_intlv_ctl),
775 		CTRL_OPTIONS(ecc_mode),
776 		CTRL_OPTIONS(ecc_init_using_memctl),
777 		CTRL_OPTIONS(dqs_config),
778 		CTRL_OPTIONS(self_refresh_in_sleep),
779 		CTRL_OPTIONS(dynamic_power),
780 		CTRL_OPTIONS(data_bus_width),
781 		CTRL_OPTIONS(burst_length),
782 		CTRL_OPTIONS(cas_latency_override),
783 		CTRL_OPTIONS(cas_latency_override_value),
784 		CTRL_OPTIONS(use_derated_caslat),
785 		CTRL_OPTIONS(additive_latency_override),
786 		CTRL_OPTIONS(additive_latency_override_value),
787 		CTRL_OPTIONS(clk_adjust),
788 		CTRL_OPTIONS(cpo_override),
789 		CTRL_OPTIONS(write_data_delay),
790 		CTRL_OPTIONS(half_strength_driver_enable),
791 		/*
792 		 * These can probably be changed to 2T_EN and 3T_EN
793 		 * (using a leading numerical character) without problem
794 		 */
795 		CTRL_OPTIONS(twot_en),
796 		CTRL_OPTIONS(threet_en),
797 		CTRL_OPTIONS(registered_dimm_en),
798 		CTRL_OPTIONS(ap_en),
799 		CTRL_OPTIONS(x4_en),
800 		CTRL_OPTIONS(bstopre),
801 		CTRL_OPTIONS(wrlvl_override),
802 		CTRL_OPTIONS(wrlvl_sample),
803 		CTRL_OPTIONS(wrlvl_start),
804 		CTRL_OPTIONS_HEX(cswl_override),
805 		CTRL_OPTIONS(rcw_override),
806 		CTRL_OPTIONS(rcw_1),
807 		CTRL_OPTIONS(rcw_2),
808 		CTRL_OPTIONS_HEX(ddr_cdr1),
809 		CTRL_OPTIONS_HEX(ddr_cdr2),
810 		CTRL_OPTIONS(tfaw_window_four_activates_ps),
811 		CTRL_OPTIONS(trwt_override),
812 		CTRL_OPTIONS(trwt),
813 		CTRL_OPTIONS(rtt_override),
814 		CTRL_OPTIONS(rtt_override_value),
815 		CTRL_OPTIONS(rtt_wr_override_value),
816 	};
817 	static const unsigned int n_opts = ARRAY_SIZE(options);
818 
819 	print_option_table(options, n_opts, popts);
820 }
821 
822 #ifdef CONFIG_SYS_FSL_DDR1
823 void ddr1_spd_dump(const ddr1_spd_eeprom_t *spd)
824 {
825 	unsigned int i;
826 
827 	printf("%-3d    : %02x %s\n", 0, spd->info_size,
828 	       " spd->info_size,   *  0 # bytes written into serial memory *");
829 	printf("%-3d    : %02x %s\n", 1, spd->chip_size,
830 	       " spd->chip_size,   *  1 Total # bytes of SPD memory device *");
831 	printf("%-3d    : %02x %s\n", 2, spd->mem_type,
832 	       " spd->mem_type,    *  2 Fundamental memory type *");
833 	printf("%-3d    : %02x %s\n", 3, spd->nrow_addr,
834 	       " spd->nrow_addr,   *  3 # of Row Addresses on this assembly *");
835 	printf("%-3d    : %02x %s\n", 4, spd->ncol_addr,
836 	       " spd->ncol_addr,   *  4 # of Column Addrs on this assembly *");
837 	printf("%-3d    : %02x %s\n", 5, spd->nrows,
838 	       " spd->nrows        *  5 # of DIMM Banks *");
839 	printf("%-3d    : %02x %s\n", 6, spd->dataw_lsb,
840 	       " spd->dataw_lsb,   *  6 Data Width lsb of this assembly *");
841 	printf("%-3d    : %02x %s\n", 7, spd->dataw_msb,
842 	       " spd->dataw_msb,   *  7 Data Width msb of this assembly *");
843 	printf("%-3d    : %02x %s\n", 8, spd->voltage,
844 	       " spd->voltage,     *  8 Voltage intf std of this assembly *");
845 	printf("%-3d    : %02x %s\n", 9, spd->clk_cycle,
846 	       " spd->clk_cycle,   *  9 SDRAM Cycle time at CL=X *");
847 	printf("%-3d    : %02x %s\n", 10, spd->clk_access,
848 	       " spd->clk_access,  * 10 SDRAM Access from Clock at CL=X *");
849 	printf("%-3d    : %02x %s\n", 11, spd->config,
850 	       " spd->config,      * 11 DIMM Configuration type *");
851 	printf("%-3d    : %02x %s\n", 12, spd->refresh,
852 	       " spd->refresh,     * 12 Refresh Rate/Type *");
853 	printf("%-3d    : %02x %s\n", 13, spd->primw,
854 	       " spd->primw,       * 13 Primary SDRAM Width *");
855 	printf("%-3d    : %02x %s\n", 14, spd->ecw,
856 	       " spd->ecw,         * 14 Error Checking SDRAM width *");
857 	printf("%-3d    : %02x %s\n", 15, spd->min_delay,
858 	       " spd->min_delay,   * 15 Back to Back Random Access *");
859 	printf("%-3d    : %02x %s\n", 16, spd->burstl,
860 	       " spd->burstl,      * 16 Burst Lengths Supported *");
861 	printf("%-3d    : %02x %s\n", 17, spd->nbanks,
862 	       " spd->nbanks,      * 17 # of Banks on Each SDRAM Device *");
863 	printf("%-3d    : %02x %s\n", 18, spd->cas_lat,
864 	       " spd->cas_lat,     * 18 CAS# Latencies Supported *");
865 	printf("%-3d    : %02x %s\n", 19, spd->cs_lat,
866 	       " spd->cs_lat,      * 19 Chip Select Latency *");
867 	printf("%-3d    : %02x %s\n", 20, spd->write_lat,
868 	       " spd->write_lat,   * 20 Write Latency/Recovery *");
869 	printf("%-3d    : %02x %s\n", 21, spd->mod_attr,
870 	       " spd->mod_attr,    * 21 SDRAM Module Attributes *");
871 	printf("%-3d    : %02x %s\n", 22, spd->dev_attr,
872 	       " spd->dev_attr,    * 22 SDRAM Device Attributes *");
873 	printf("%-3d    : %02x %s\n", 23, spd->clk_cycle2,
874 	       " spd->clk_cycle2,  * 23 Min SDRAM Cycle time at CL=X-1 *");
875 	printf("%-3d    : %02x %s\n", 24, spd->clk_access2,
876 	       " spd->clk_access2, * 24 SDRAM Access from Clock at CL=X-1 *");
877 	printf("%-3d    : %02x %s\n", 25, spd->clk_cycle3,
878 	       " spd->clk_cycle3,  * 25 Min SDRAM Cycle time at CL=X-2 *");
879 	printf("%-3d    : %02x %s\n", 26, spd->clk_access3,
880 	       " spd->clk_access3, * 26 Max Access from Clock at CL=X-2 *");
881 	printf("%-3d    : %02x %s\n", 27, spd->trp,
882 	       " spd->trp,         * 27 Min Row Precharge Time (tRP)*");
883 	printf("%-3d    : %02x %s\n", 28, spd->trrd,
884 	       " spd->trrd,        * 28 Min Row Active to Row Active (tRRD) *");
885 	printf("%-3d    : %02x %s\n", 29, spd->trcd,
886 	       " spd->trcd,        * 29 Min RAS to CAS Delay (tRCD) *");
887 	printf("%-3d    : %02x %s\n", 30, spd->tras,
888 	       " spd->tras,        * 30 Minimum RAS Pulse Width (tRAS) *");
889 	printf("%-3d    : %02x %s\n", 31, spd->bank_dens,
890 	       " spd->bank_dens,   * 31 Density of each bank on module *");
891 	printf("%-3d    : %02x %s\n", 32, spd->ca_setup,
892 	       " spd->ca_setup,    * 32 Cmd + Addr signal input setup time *");
893 	printf("%-3d    : %02x %s\n", 33, spd->ca_hold,
894 	       " spd->ca_hold,     * 33 Cmd and Addr signal input hold time *");
895 	printf("%-3d    : %02x %s\n", 34, spd->data_setup,
896 	       " spd->data_setup,  * 34 Data signal input setup time *");
897 	printf("%-3d    : %02x %s\n", 35, spd->data_hold,
898 	       " spd->data_hold,   * 35 Data signal input hold time *");
899 	printf("%-3d    : %02x %s\n", 36, spd->res_36_40[0],
900 	       " spd->res_36_40[0], * 36 Reserved / tWR *");
901 	printf("%-3d    : %02x %s\n", 37, spd->res_36_40[1],
902 	       " spd->res_36_40[1], * 37 Reserved / tWTR *");
903 	printf("%-3d    : %02x %s\n", 38, spd->res_36_40[2],
904 	       " spd->res_36_40[2], * 38 Reserved / tRTP *");
905 	printf("%-3d    : %02x %s\n", 39, spd->res_36_40[3],
906 	       " spd->res_36_40[3], * 39 Reserved / mem_probe *");
907 	printf("%-3d    : %02x %s\n", 40, spd->res_36_40[4],
908 	       " spd->res_36_40[4], * 40 Reserved / trc,trfc extensions *");
909 	printf("%-3d    : %02x %s\n", 41, spd->trc,
910 	       " spd->trc,         * 41 Min Active to Auto refresh time tRC *");
911 	printf("%-3d    : %02x %s\n", 42, spd->trfc,
912 	       " spd->trfc,        * 42 Min Auto to Active period tRFC *");
913 	printf("%-3d    : %02x %s\n", 43, spd->tckmax,
914 	       " spd->tckmax,      * 43 Max device cycle time tCKmax *");
915 	printf("%-3d    : %02x %s\n", 44, spd->tdqsq,
916 	       " spd->tdqsq,       * 44 Max DQS to DQ skew *");
917 	printf("%-3d    : %02x %s\n", 45, spd->tqhs,
918 	       " spd->tqhs,        * 45 Max Read DataHold skew tQHS *");
919 	printf("%-3d    : %02x %s\n", 46, spd->res_46,
920 	       " spd->res_46,  * 46 Reserved/ PLL Relock time *");
921 	printf("%-3d    : %02x %s\n", 47, spd->dimm_height,
922 	       " spd->dimm_height  * 47 SDRAM DIMM Height *");
923 
924 	printf("%-3d-%3d: ",  48, 61);
925 
926 	for (i = 0; i < 14; i++)
927 		printf("%02x", spd->res_48_61[i]);
928 
929 	printf(" * 48-61 IDD in SPD and Reserved space *\n");
930 
931 	printf("%-3d    : %02x %s\n", 62, spd->spd_rev,
932 	       " spd->spd_rev,     * 62 SPD Data Revision Code *");
933 	printf("%-3d    : %02x %s\n", 63, spd->cksum,
934 	       " spd->cksum,       * 63 Checksum for bytes 0-62 *");
935 	printf("%-3d-%3d: ",  64, 71);
936 
937 	for (i = 0; i < 8; i++)
938 		printf("%02x", spd->mid[i]);
939 
940 	printf("* 64 Mfr's JEDEC ID code per JEP-108E *\n");
941 	printf("%-3d    : %02x %s\n", 72, spd->mloc,
942 	       " spd->mloc,        * 72 Manufacturing Location *");
943 
944 	printf("%-3d-%3d: >>",  73, 90);
945 
946 	for (i = 0; i < 18; i++)
947 		printf("%c", spd->mpart[i]);
948 
949 	printf("<<* 73 Manufacturer's Part Number *\n");
950 
951 	printf("%-3d-%3d: %02x %02x %s\n", 91, 92, spd->rev[0], spd->rev[1],
952 	       "* 91 Revision Code *");
953 	printf("%-3d-%3d: %02x %02x %s\n", 93, 94, spd->mdate[0], spd->mdate[1],
954 	       "* 93 Manufacturing Date *");
955 	printf("%-3d-%3d: ", 95, 98);
956 
957 	for (i = 0; i < 4; i++)
958 		printf("%02x", spd->sernum[i]);
959 
960 	printf("* 95 Assembly Serial Number *\n");
961 
962 	printf("%-3d-%3d: ", 99, 127);
963 
964 	for (i = 0; i < 27; i++)
965 		printf("%02x", spd->mspec[i]);
966 
967 	printf("* 99 Manufacturer Specific Data *\n");
968 }
969 #endif
970 
971 #ifdef CONFIG_SYS_FSL_DDR2
972 void ddr2_spd_dump(const ddr2_spd_eeprom_t *spd)
973 {
974 	unsigned int i;
975 
976 	printf("%-3d    : %02x %s\n", 0, spd->info_size,
977 	       " spd->info_size,   *  0 # bytes written into serial memory *");
978 	printf("%-3d    : %02x %s\n", 1, spd->chip_size,
979 	       " spd->chip_size,   *  1 Total # bytes of SPD memory device *");
980 	printf("%-3d    : %02x %s\n", 2, spd->mem_type,
981 	       " spd->mem_type,    *  2 Fundamental memory type *");
982 	printf("%-3d    : %02x %s\n", 3, spd->nrow_addr,
983 	       " spd->nrow_addr,   *  3 # of Row Addresses on this assembly *");
984 	printf("%-3d    : %02x %s\n", 4, spd->ncol_addr,
985 	       " spd->ncol_addr,   *  4 # of Column Addrs on this assembly *");
986 	printf("%-3d    : %02x %s\n", 5, spd->mod_ranks,
987 	       " spd->mod_ranks    *  5 # of Module Rows on this assembly *");
988 	printf("%-3d    : %02x %s\n", 6, spd->dataw,
989 	       " spd->dataw,       *  6 Data Width of this assembly *");
990 	printf("%-3d    : %02x %s\n", 7, spd->res_7,
991 	       " spd->res_7,       *  7 Reserved *");
992 	printf("%-3d    : %02x %s\n", 8, spd->voltage,
993 	       " spd->voltage,     *  8 Voltage intf std of this assembly *");
994 	printf("%-3d    : %02x %s\n", 9, spd->clk_cycle,
995 	       " spd->clk_cycle,   *  9 SDRAM Cycle time at CL=X *");
996 	printf("%-3d    : %02x %s\n", 10, spd->clk_access,
997 	       " spd->clk_access,  * 10 SDRAM Access from Clock at CL=X *");
998 	printf("%-3d    : %02x %s\n", 11, spd->config,
999 	       " spd->config,      * 11 DIMM Configuration type *");
1000 	printf("%-3d    : %02x %s\n", 12, spd->refresh,
1001 	       " spd->refresh,     * 12 Refresh Rate/Type *");
1002 	printf("%-3d    : %02x %s\n", 13, spd->primw,
1003 	       " spd->primw,       * 13 Primary SDRAM Width *");
1004 	printf("%-3d    : %02x %s\n", 14, spd->ecw,
1005 	       " spd->ecw,         * 14 Error Checking SDRAM width *");
1006 	printf("%-3d    : %02x %s\n", 15, spd->res_15,
1007 	       " spd->res_15,      * 15 Reserved *");
1008 	printf("%-3d    : %02x %s\n", 16, spd->burstl,
1009 	       " spd->burstl,      * 16 Burst Lengths Supported *");
1010 	printf("%-3d    : %02x %s\n", 17, spd->nbanks,
1011 	       " spd->nbanks,      * 17 # of Banks on Each SDRAM Device *");
1012 	printf("%-3d    : %02x %s\n", 18, spd->cas_lat,
1013 	       " spd->cas_lat,     * 18 CAS# Latencies Supported *");
1014 	printf("%-3d    : %02x %s\n", 19, spd->mech_char,
1015 	       " spd->mech_char,   * 19 Mechanical Characteristics *");
1016 	printf("%-3d    : %02x %s\n", 20, spd->dimm_type,
1017 	       " spd->dimm_type,   * 20 DIMM type *");
1018 	printf("%-3d    : %02x %s\n", 21, spd->mod_attr,
1019 	       " spd->mod_attr,    * 21 SDRAM Module Attributes *");
1020 	printf("%-3d    : %02x %s\n", 22, spd->dev_attr,
1021 	       " spd->dev_attr,    * 22 SDRAM Device Attributes *");
1022 	printf("%-3d    : %02x %s\n", 23, spd->clk_cycle2,
1023 	       " spd->clk_cycle2,  * 23 Min SDRAM Cycle time at CL=X-1 *");
1024 	printf("%-3d    : %02x %s\n", 24, spd->clk_access2,
1025 	       " spd->clk_access2, * 24 SDRAM Access from Clock at CL=X-1 *");
1026 	printf("%-3d    : %02x %s\n", 25, spd->clk_cycle3,
1027 	       " spd->clk_cycle3,  * 25 Min SDRAM Cycle time at CL=X-2 *");
1028 	printf("%-3d    : %02x %s\n", 26, spd->clk_access3,
1029 	       " spd->clk_access3, * 26 Max Access from Clock at CL=X-2 *");
1030 	printf("%-3d    : %02x %s\n", 27, spd->trp,
1031 	       " spd->trp,         * 27 Min Row Precharge Time (tRP)*");
1032 	printf("%-3d    : %02x %s\n", 28, spd->trrd,
1033 	       " spd->trrd,        * 28 Min Row Active to Row Active (tRRD) *");
1034 	printf("%-3d    : %02x %s\n", 29, spd->trcd,
1035 	       " spd->trcd,        * 29 Min RAS to CAS Delay (tRCD) *");
1036 	printf("%-3d    : %02x %s\n", 30, spd->tras,
1037 	       " spd->tras,        * 30 Minimum RAS Pulse Width (tRAS) *");
1038 	printf("%-3d    : %02x %s\n", 31, spd->rank_dens,
1039 	       " spd->rank_dens,   * 31 Density of each rank on module *");
1040 	printf("%-3d    : %02x %s\n", 32, spd->ca_setup,
1041 	       " spd->ca_setup,    * 32 Cmd + Addr signal input setup time *");
1042 	printf("%-3d    : %02x %s\n", 33, spd->ca_hold,
1043 	       " spd->ca_hold,     * 33 Cmd and Addr signal input hold time *");
1044 	printf("%-3d    : %02x %s\n", 34, spd->data_setup,
1045 	       " spd->data_setup,  * 34 Data signal input setup time *");
1046 	printf("%-3d    : %02x %s\n", 35, spd->data_hold,
1047 	       " spd->data_hold,   * 35 Data signal input hold time *");
1048 	printf("%-3d    : %02x %s\n", 36, spd->twr,
1049 	       " spd->twr,         * 36 Write Recovery time tWR *");
1050 	printf("%-3d    : %02x %s\n", 37, spd->twtr,
1051 	       " spd->twtr,        * 37 Int write to read delay tWTR *");
1052 	printf("%-3d    : %02x %s\n", 38, spd->trtp,
1053 	       " spd->trtp,        * 38 Int read to precharge delay tRTP *");
1054 	printf("%-3d    : %02x %s\n", 39, spd->mem_probe,
1055 	       " spd->mem_probe,   * 39 Mem analysis probe characteristics *");
1056 	printf("%-3d    : %02x %s\n", 40, spd->trctrfc_ext,
1057 	       " spd->trctrfc_ext, * 40 Extensions to trc and trfc *");
1058 	printf("%-3d    : %02x %s\n", 41, spd->trc,
1059 	       " spd->trc,         * 41 Min Active to Auto refresh time tRC *");
1060 	printf("%-3d    : %02x %s\n", 42, spd->trfc,
1061 	       " spd->trfc,        * 42 Min Auto to Active period tRFC *");
1062 	printf("%-3d    : %02x %s\n", 43, spd->tckmax,
1063 	       " spd->tckmax,      * 43 Max device cycle time tCKmax *");
1064 	printf("%-3d    : %02x %s\n", 44, spd->tdqsq,
1065 	       " spd->tdqsq,       * 44 Max DQS to DQ skew *");
1066 	printf("%-3d    : %02x %s\n", 45, spd->tqhs,
1067 	       " spd->tqhs,        * 45 Max Read DataHold skew tQHS *");
1068 	printf("%-3d    : %02x %s\n", 46, spd->pll_relock,
1069 	       " spd->pll_relock,  * 46 PLL Relock time *");
1070 	printf("%-3d    : %02x %s\n", 47, spd->t_casemax,
1071 	       " spd->t_casemax,    * 47 t_casemax *");
1072 	printf("%-3d    : %02x %s\n", 48, spd->psi_ta_dram,
1073 	       " spd->psi_ta_dram,   * 48 Thermal Resistance of DRAM Package "
1074 	       "from Top (Case) to Ambient (Psi T-A DRAM) *");
1075 	printf("%-3d    : %02x %s\n", 49, spd->dt0_mode,
1076 	       " spd->dt0_mode,    * 49 DRAM Case Temperature Rise from "
1077 	       "Ambient due to Activate-Precharge/Mode Bits "
1078 	       "(DT0/Mode Bits) *)");
1079 	printf("%-3d    : %02x %s\n", 50, spd->dt2n_dt2q,
1080 	       " spd->dt2n_dt2q,   * 50 DRAM Case Temperature Rise from "
1081 	       "Ambient due to Precharge/Quiet Standby "
1082 	       "(DT2N/DT2Q) *");
1083 	printf("%-3d    : %02x %s\n", 51, spd->dt2p,
1084 	       " spd->dt2p,        * 51 DRAM Case Temperature Rise from "
1085 	       "Ambient due to Precharge Power-Down (DT2P) *");
1086 	printf("%-3d    : %02x %s\n", 52, spd->dt3n,
1087 	       " spd->dt3n,        * 52 DRAM Case Temperature Rise from "
1088 	       "Ambient due to Active Standby (DT3N) *");
1089 	printf("%-3d    : %02x %s\n", 53, spd->dt3pfast,
1090 	       " spd->dt3pfast,    * 53 DRAM Case Temperature Rise from "
1091 	       "Ambient due to Active Power-Down with Fast PDN Exit "
1092 	       "(DT3Pfast) *");
1093 	printf("%-3d    : %02x %s\n", 54, spd->dt3pslow,
1094 	       " spd->dt3pslow,    * 54 DRAM Case Temperature Rise from "
1095 	       "Ambient due to Active Power-Down with Slow PDN Exit "
1096 	       "(DT3Pslow) *");
1097 	printf("%-3d    : %02x %s\n", 55, spd->dt4r_dt4r4w,
1098 	       " spd->dt4r_dt4r4w, * 55 DRAM Case Temperature Rise from "
1099 	       "Ambient due to Page Open Burst Read/DT4R4W Mode Bit "
1100 	       "(DT4R/DT4R4W Mode Bit) *");
1101 	printf("%-3d    : %02x %s\n", 56, spd->dt5b,
1102 	       " spd->dt5b,        * 56 DRAM Case Temperature Rise from "
1103 	       "Ambient due to Burst Refresh (DT5B) *");
1104 	printf("%-3d    : %02x %s\n", 57, spd->dt7,
1105 	       " spd->dt7,         * 57 DRAM Case Temperature Rise from "
1106 	       "Ambient due to Bank Interleave Reads with "
1107 	       "Auto-Precharge (DT7) *");
1108 	printf("%-3d    : %02x %s\n", 58, spd->psi_ta_pll,
1109 	       " spd->psi_ta_pll,    * 58 Thermal Resistance of PLL Package form"
1110 	       " Top (Case) to Ambient (Psi T-A PLL) *");
1111 	printf("%-3d    : %02x %s\n", 59, spd->psi_ta_reg,
1112 	       " spd->psi_ta_reg,    * 59 Thermal Reisitance of Register Package"
1113 	       " from Top (Case) to Ambient (Psi T-A Register) *");
1114 	printf("%-3d    : %02x %s\n", 60, spd->dtpllactive,
1115 	       " spd->dtpllactive, * 60 PLL Case Temperature Rise from "
1116 	       "Ambient due to PLL Active (DT PLL Active) *");
1117 	printf("%-3d    : %02x %s\n", 61, spd->dtregact,
1118 	       " spd->dtregact,    "
1119 	       "* 61 Register Case Temperature Rise from Ambient due to "
1120 	       "Register Active/Mode Bit (DT Register Active/Mode Bit) *");
1121 	printf("%-3d    : %02x %s\n", 62, spd->spd_rev,
1122 	       " spd->spd_rev,     * 62 SPD Data Revision Code *");
1123 	printf("%-3d    : %02x %s\n", 63, spd->cksum,
1124 	       " spd->cksum,       * 63 Checksum for bytes 0-62 *");
1125 
1126 	printf("%-3d-%3d: ",  64, 71);
1127 
1128 	for (i = 0; i < 8; i++)
1129 		printf("%02x", spd->mid[i]);
1130 
1131 	printf("* 64 Mfr's JEDEC ID code per JEP-108E *\n");
1132 
1133 	printf("%-3d    : %02x %s\n", 72, spd->mloc,
1134 	       " spd->mloc,        * 72 Manufacturing Location *");
1135 
1136 	printf("%-3d-%3d: >>",  73, 90);
1137 	for (i = 0; i < 18; i++)
1138 		printf("%c", spd->mpart[i]);
1139 
1140 
1141 	printf("<<* 73 Manufacturer's Part Number *\n");
1142 
1143 	printf("%-3d-%3d: %02x %02x %s\n", 91, 92, spd->rev[0], spd->rev[1],
1144 	       "* 91 Revision Code *");
1145 	printf("%-3d-%3d: %02x %02x %s\n", 93, 94, spd->mdate[0], spd->mdate[1],
1146 	       "* 93 Manufacturing Date *");
1147 	printf("%-3d-%3d: ", 95, 98);
1148 
1149 	for (i = 0; i < 4; i++)
1150 		printf("%02x", spd->sernum[i]);
1151 
1152 	printf("* 95 Assembly Serial Number *\n");
1153 
1154 	printf("%-3d-%3d: ", 99, 127);
1155 	for (i = 0; i < 27; i++)
1156 		printf("%02x", spd->mspec[i]);
1157 
1158 
1159 	printf("* 99 Manufacturer Specific Data *\n");
1160 }
1161 #endif
1162 
1163 #ifdef CONFIG_SYS_FSL_DDR3
1164 void ddr3_spd_dump(const ddr3_spd_eeprom_t *spd)
1165 {
1166 	unsigned int i;
1167 
1168 	/* General Section: Bytes 0-59 */
1169 
1170 #define PRINT_NXS(x, y, z...) printf("%-3d    : %02x " z "\n", x, (u8)y);
1171 #define PRINT_NNXXS(n0, n1, x0, x1, s) \
1172 	printf("%-3d-%3d: %02x %02x " s "\n", n0, n1, x0, x1);
1173 
1174 	PRINT_NXS(0, spd->info_size_crc,
1175 		"info_size_crc  bytes written into serial memory, "
1176 		"CRC coverage");
1177 	PRINT_NXS(1, spd->spd_rev,
1178 		"spd_rev        SPD Revision");
1179 	PRINT_NXS(2, spd->mem_type,
1180 		"mem_type       Key Byte / DRAM Device Type");
1181 	PRINT_NXS(3, spd->module_type,
1182 		"module_type    Key Byte / Module Type");
1183 	PRINT_NXS(4, spd->density_banks,
1184 		"density_banks  SDRAM Density and Banks");
1185 	PRINT_NXS(5, spd->addressing,
1186 		"addressing     SDRAM Addressing");
1187 	PRINT_NXS(6, spd->module_vdd,
1188 		"module_vdd     Module Nominal Voltage, VDD");
1189 	PRINT_NXS(7, spd->organization,
1190 		"organization   Module Organization");
1191 	PRINT_NXS(8, spd->bus_width,
1192 		"bus_width      Module Memory Bus Width");
1193 	PRINT_NXS(9, spd->ftb_div,
1194 		"ftb_div        Fine Timebase (FTB) Dividend / Divisor");
1195 	PRINT_NXS(10, spd->mtb_dividend,
1196 		"mtb_dividend   Medium Timebase (MTB) Dividend");
1197 	PRINT_NXS(11, spd->mtb_divisor,
1198 		"mtb_divisor    Medium Timebase (MTB) Divisor");
1199 	PRINT_NXS(12, spd->tck_min,
1200 		  "tck_min        SDRAM Minimum Cycle Time");
1201 	PRINT_NXS(13, spd->res_13,
1202 		"res_13         Reserved");
1203 	PRINT_NXS(14, spd->caslat_lsb,
1204 		"caslat_lsb     CAS Latencies Supported, LSB");
1205 	PRINT_NXS(15, spd->caslat_msb,
1206 		"caslat_msb     CAS Latencies Supported, MSB");
1207 	PRINT_NXS(16, spd->taa_min,
1208 		  "taa_min        Min CAS Latency Time");
1209 	PRINT_NXS(17, spd->twr_min,
1210 		  "twr_min        Min Write REcovery Time");
1211 	PRINT_NXS(18, spd->trcd_min,
1212 		  "trcd_min       Min RAS# to CAS# Delay Time");
1213 	PRINT_NXS(19, spd->trrd_min,
1214 		  "trrd_min       Min Row Active to Row Active Delay Time");
1215 	PRINT_NXS(20, spd->trp_min,
1216 		  "trp_min        Min Row Precharge Delay Time");
1217 	PRINT_NXS(21, spd->tras_trc_ext,
1218 		  "tras_trc_ext   Upper Nibbles for tRAS and tRC");
1219 	PRINT_NXS(22, spd->tras_min_lsb,
1220 		  "tras_min_lsb   Min Active to Precharge Delay Time, LSB");
1221 	PRINT_NXS(23, spd->trc_min_lsb,
1222 		  "trc_min_lsb Min Active to Active/Refresh Delay Time, LSB");
1223 	PRINT_NXS(24, spd->trfc_min_lsb,
1224 		  "trfc_min_lsb   Min Refresh Recovery Delay Time LSB");
1225 	PRINT_NXS(25, spd->trfc_min_msb,
1226 		  "trfc_min_msb   Min Refresh Recovery Delay Time MSB");
1227 	PRINT_NXS(26, spd->twtr_min,
1228 		  "twtr_min Min Internal Write to Read Command Delay Time");
1229 	PRINT_NXS(27, spd->trtp_min,
1230 		  "trtp_min "
1231 		  "Min Internal Read to Precharge Command Delay Time");
1232 	PRINT_NXS(28, spd->tfaw_msb,
1233 		  "tfaw_msb       Upper Nibble for tFAW");
1234 	PRINT_NXS(29, spd->tfaw_min,
1235 		  "tfaw_min       Min Four Activate Window Delay Time");
1236 	PRINT_NXS(30, spd->opt_features,
1237 		"opt_features   SDRAM Optional Features");
1238 	PRINT_NXS(31, spd->therm_ref_opt,
1239 		"therm_ref_opt  SDRAM Thermal and Refresh Opts");
1240 	PRINT_NXS(32, spd->therm_sensor,
1241 		"therm_sensor  SDRAM Thermal Sensor");
1242 	PRINT_NXS(33, spd->device_type,
1243 		"device_type  SDRAM Device Type");
1244 	PRINT_NXS(34, spd->fine_tck_min,
1245 		  "fine_tck_min  Fine offset for tCKmin");
1246 	PRINT_NXS(35, spd->fine_taa_min,
1247 		  "fine_taa_min  Fine offset for tAAmin");
1248 	PRINT_NXS(36, spd->fine_trcd_min,
1249 		  "fine_trcd_min Fine offset for tRCDmin");
1250 	PRINT_NXS(37, spd->fine_trp_min,
1251 		  "fine_trp_min  Fine offset for tRPmin");
1252 	PRINT_NXS(38, spd->fine_trc_min,
1253 		  "fine_trc_min  Fine offset for tRCmin");
1254 
1255 	printf("%-3d-%3d: ",  39, 59);  /* Reserved, General Section */
1256 
1257 	for (i = 39; i <= 59; i++)
1258 		printf("%02x ", spd->res_39_59[i - 39]);
1259 
1260 	puts("\n");
1261 
1262 	switch (spd->module_type) {
1263 	case 0x02:  /* UDIMM */
1264 	case 0x03:  /* SO-DIMM */
1265 	case 0x04:  /* Micro-DIMM */
1266 	case 0x06:  /* Mini-UDIMM */
1267 		PRINT_NXS(60, spd->mod_section.unbuffered.mod_height,
1268 			"mod_height    (Unbuffered) Module Nominal Height");
1269 		PRINT_NXS(61, spd->mod_section.unbuffered.mod_thickness,
1270 			"mod_thickness (Unbuffered) Module Maximum Thickness");
1271 		PRINT_NXS(62, spd->mod_section.unbuffered.ref_raw_card,
1272 			"ref_raw_card  (Unbuffered) Reference Raw Card Used");
1273 		PRINT_NXS(63, spd->mod_section.unbuffered.addr_mapping,
1274 			"addr_mapping  (Unbuffered) Address mapping from "
1275 			"Edge Connector to DRAM");
1276 		break;
1277 	case 0x01:  /* RDIMM */
1278 	case 0x05:  /* Mini-RDIMM */
1279 		PRINT_NXS(60, spd->mod_section.registered.mod_height,
1280 			"mod_height    (Registered) Module Nominal Height");
1281 		PRINT_NXS(61, spd->mod_section.registered.mod_thickness,
1282 			"mod_thickness (Registered) Module Maximum Thickness");
1283 		PRINT_NXS(62, spd->mod_section.registered.ref_raw_card,
1284 			"ref_raw_card  (Registered) Reference Raw Card Used");
1285 		PRINT_NXS(63, spd->mod_section.registered.modu_attr,
1286 			"modu_attr     (Registered) DIMM Module Attributes");
1287 		PRINT_NXS(64, spd->mod_section.registered.thermal,
1288 			"thermal       (Registered) Thermal Heat "
1289 			"Spreader Solution");
1290 		PRINT_NXS(65, spd->mod_section.registered.reg_id_lo,
1291 			"reg_id_lo     (Registered) Register Manufacturer ID "
1292 			"Code, LSB");
1293 		PRINT_NXS(66, spd->mod_section.registered.reg_id_hi,
1294 			"reg_id_hi     (Registered) Register Manufacturer ID "
1295 			"Code, MSB");
1296 		PRINT_NXS(67, spd->mod_section.registered.reg_rev,
1297 			"reg_rev       (Registered) Register "
1298 			"Revision Number");
1299 		PRINT_NXS(68, spd->mod_section.registered.reg_type,
1300 			"reg_type      (Registered) Register Type");
1301 		for (i = 69; i <= 76; i++) {
1302 			printf("%-3d    : %02x rcw[%d]\n", i,
1303 				spd->mod_section.registered.rcw[i-69], i-69);
1304 		}
1305 		break;
1306 	default:
1307 		/* Module-specific Section, Unsupported Module Type */
1308 		printf("%-3d-%3d: ", 60, 116);
1309 
1310 		for (i = 60; i <= 116; i++)
1311 			printf("%02x", spd->mod_section.uc[i - 60]);
1312 
1313 		break;
1314 	}
1315 
1316 	/* Unique Module ID: Bytes 117-125 */
1317 	PRINT_NXS(117, spd->mmid_lsb, "Module MfgID Code LSB - JEP-106");
1318 	PRINT_NXS(118, spd->mmid_msb, "Module MfgID Code MSB - JEP-106");
1319 	PRINT_NXS(119, spd->mloc,     "Mfg Location");
1320 	PRINT_NNXXS(120, 121, spd->mdate[0], spd->mdate[1], "Mfg Date");
1321 
1322 	printf("%-3d-%3d: ", 122, 125);
1323 
1324 	for (i = 122; i <= 125; i++)
1325 		printf("%02x ", spd->sernum[i - 122]);
1326 	printf("   Module Serial Number\n");
1327 
1328 	/* CRC: Bytes 126-127 */
1329 	PRINT_NNXXS(126, 127, spd->crc[0], spd->crc[1], "  SPD CRC");
1330 
1331 	/* Other Manufacturer Fields and User Space: Bytes 128-255 */
1332 	printf("%-3d-%3d: ", 128, 145);
1333 	for (i = 128; i <= 145; i++)
1334 		printf("%02x ", spd->mpart[i - 128]);
1335 	printf("   Mfg's Module Part Number\n");
1336 
1337 	PRINT_NNXXS(146, 147, spd->mrev[0], spd->mrev[1],
1338 		"Module Revision code");
1339 
1340 	PRINT_NXS(148, spd->dmid_lsb, "DRAM MfgID Code LSB - JEP-106");
1341 	PRINT_NXS(149, spd->dmid_msb, "DRAM MfgID Code MSB - JEP-106");
1342 
1343 	printf("%-3d-%3d: ", 150, 175);
1344 	for (i = 150; i <= 175; i++)
1345 		printf("%02x ", spd->msd[i - 150]);
1346 	printf("   Mfg's Specific Data\n");
1347 
1348 	printf("%-3d-%3d: ", 176, 255);
1349 	for (i = 176; i <= 255; i++)
1350 		printf("%02x", spd->cust[i - 176]);
1351 	printf("   Mfg's Specific Data\n");
1352 
1353 }
1354 #endif
1355 
1356 #ifdef CONFIG_SYS_FSL_DDR4
1357 void ddr4_spd_dump(const struct ddr4_spd_eeprom_s *spd)
1358 {
1359 	unsigned int i;
1360 
1361 	/* General Section: Bytes 0-127 */
1362 
1363 #define PRINT_NXS(x, y, z...) printf("%-3d    : %02x " z "\n", x, (u8)y);
1364 #define PRINT_NNXXS(n0, n1, x0, x1, s) \
1365 	printf("%-3d-%3d: %02x %02x " s "\n", n0, n1, x0, x1);
1366 
1367 	PRINT_NXS(0, spd->info_size_crc,
1368 		  "info_size_crc  bytes written into serial memory, CRC coverage");
1369 	PRINT_NXS(1, spd->spd_rev,
1370 		  "spd_rev        SPD Revision");
1371 	PRINT_NXS(2, spd->mem_type,
1372 		  "mem_type       Key Byte / DRAM Device Type");
1373 	PRINT_NXS(3, spd->module_type,
1374 		  "module_type    Key Byte / Module Type");
1375 	PRINT_NXS(4, spd->density_banks,
1376 		  "density_banks  SDRAM Density and Banks");
1377 	PRINT_NXS(5, spd->addressing,
1378 		  "addressing     SDRAM Addressing");
1379 	PRINT_NXS(6, spd->package_type,
1380 		  "package_type   Package type");
1381 	PRINT_NXS(7, spd->opt_feature,
1382 		  "opt_feature    Optional features");
1383 	PRINT_NXS(8, spd->thermal_ref,
1384 		  "thermal_ref    Thermal and Refresh options");
1385 	PRINT_NXS(9, spd->oth_opt_features,
1386 		  "oth_opt_features Other SDRAM optional features");
1387 	PRINT_NXS(10, spd->res_10,
1388 		  "res_10         Reserved");
1389 	PRINT_NXS(11, spd->module_vdd,
1390 		  "module_vdd     Module Nominal Voltage, VDD");
1391 	PRINT_NXS(12, spd->organization,
1392 		  "organization Module Organization");
1393 	PRINT_NXS(13, spd->bus_width,
1394 		  "bus_width      Module Memory Bus Width");
1395 	PRINT_NXS(14, spd->therm_sensor,
1396 		  "therm_sensor   Module Thermal Sensor");
1397 	PRINT_NXS(15, spd->ext_type,
1398 		  "ext_type       Extended module type");
1399 	PRINT_NXS(16, spd->res_16,
1400 		  "res_16       Reserved");
1401 	PRINT_NXS(17, spd->timebases,
1402 		  "timebases    MTb and FTB");
1403 	PRINT_NXS(18, spd->tck_min,
1404 		  "tck_min      tCKAVGmin");
1405 	PRINT_NXS(19, spd->tck_max,
1406 		  "tck_max      TCKAVGmax");
1407 	PRINT_NXS(20, spd->caslat_b1,
1408 		  "caslat_b1    CAS latencies, 1st byte");
1409 	PRINT_NXS(21, spd->caslat_b2,
1410 		  "caslat_b2    CAS latencies, 2nd byte");
1411 	PRINT_NXS(22, spd->caslat_b3,
1412 		  "caslat_b3    CAS latencies, 3rd byte ");
1413 	PRINT_NXS(23, spd->caslat_b4,
1414 		  "caslat_b4    CAS latencies, 4th byte");
1415 	PRINT_NXS(24, spd->taa_min,
1416 		  "taa_min      Min CAS Latency Time");
1417 	PRINT_NXS(25, spd->trcd_min,
1418 		  "trcd_min     Min RAS# to CAS# Delay Time");
1419 	PRINT_NXS(26, spd->trp_min,
1420 		  "trp_min      Min Row Precharge Delay Time");
1421 	PRINT_NXS(27, spd->tras_trc_ext,
1422 		  "tras_trc_ext Upper Nibbles for tRAS and tRC");
1423 	PRINT_NXS(28, spd->tras_min_lsb,
1424 		  "tras_min_lsb tRASmin, lsb");
1425 	PRINT_NXS(29, spd->trc_min_lsb,
1426 		  "trc_min_lsb  tRCmin, lsb");
1427 	PRINT_NXS(30, spd->trfc1_min_lsb,
1428 		  "trfc1_min_lsb  Min Refresh Recovery Delay Time, LSB");
1429 	PRINT_NXS(31, spd->trfc1_min_msb,
1430 		  "trfc1_min_msb  Min Refresh Recovery Delay Time, MSB ");
1431 	PRINT_NXS(32, spd->trfc2_min_lsb,
1432 		  "trfc2_min_lsb  Min Refresh Recovery Delay Time, LSB");
1433 	PRINT_NXS(33, spd->trfc2_min_msb,
1434 		  "trfc2_min_msb  Min Refresh Recovery Delay Time, MSB");
1435 	PRINT_NXS(34, spd->trfc4_min_lsb,
1436 		  "trfc4_min_lsb Min Refresh Recovery Delay Time, LSB");
1437 	PRINT_NXS(35, spd->trfc4_min_msb,
1438 		  "trfc4_min_msb Min Refresh Recovery Delay Time, MSB");
1439 	PRINT_NXS(36, spd->tfaw_msb,
1440 		  "tfaw_msb      Upper Nibble for tFAW");
1441 	PRINT_NXS(37, spd->tfaw_min,
1442 		  "tfaw_min      tFAW, lsb");
1443 	PRINT_NXS(38, spd->trrds_min,
1444 		  "trrds_min     tRRD_Smin, MTB");
1445 	PRINT_NXS(39, spd->trrdl_min,
1446 		  "trrdl_min     tRRD_Lmin, MTB");
1447 	PRINT_NXS(40, spd->tccdl_min,
1448 		  "tccdl_min     tCCS_Lmin, MTB");
1449 
1450 	printf("%-3d-%3d: ", 41, 59);  /* Reserved, General Section */
1451 	for (i = 41; i <= 59; i++)
1452 		printf("%02x ", spd->res_41[i - 41]);
1453 
1454 	puts("\n");
1455 	printf("%-3d-%3d: ", 60, 77);
1456 	for (i = 60; i <= 77; i++)
1457 		printf("%02x ", spd->mapping[i - 60]);
1458 	puts("   mapping[] Connector to SDRAM bit map\n");
1459 
1460 	PRINT_NXS(117, spd->fine_tccdl_min,
1461 		  "fine_tccdl_min Fine offset for tCCD_Lmin");
1462 	PRINT_NXS(118, spd->fine_trrdl_min,
1463 		  "fine_trrdl_min Fine offset for tRRD_Lmin");
1464 	PRINT_NXS(119, spd->fine_trrds_min,
1465 		  "fine_trrds_min Fine offset for tRRD_Smin");
1466 	PRINT_NXS(120, spd->fine_trc_min,
1467 		  "fine_trc_min   Fine offset for tRCmin");
1468 	PRINT_NXS(121, spd->fine_trp_min,
1469 		  "fine_trp_min   Fine offset for tRPmin");
1470 	PRINT_NXS(122, spd->fine_trcd_min,
1471 		  "fine_trcd_min  Fine offset for tRCDmin");
1472 	PRINT_NXS(123, spd->fine_taa_min,
1473 		  "fine_taa_min   Fine offset for tAAmin");
1474 	PRINT_NXS(124, spd->fine_tck_max,
1475 		  "fine_tck_max   Fine offset for tCKAVGmax");
1476 	PRINT_NXS(125, spd->fine_tck_min,
1477 		  "fine_tck_min   Fine offset for tCKAVGmin");
1478 
1479 	/* CRC: Bytes 126-127 */
1480 	PRINT_NNXXS(126, 127, spd->crc[0], spd->crc[1], "  SPD CRC");
1481 
1482 	switch (spd->module_type) {
1483 	case 0x02:  /* UDIMM */
1484 	case 0x03:  /* SO-DIMM */
1485 		PRINT_NXS(128, spd->mod_section.unbuffered.mod_height,
1486 			  "mod_height    (Unbuffered) Module Nominal Height");
1487 		PRINT_NXS(129, spd->mod_section.unbuffered.mod_thickness,
1488 			  "mod_thickness (Unbuffered) Module Maximum Thickness");
1489 		PRINT_NXS(130, spd->mod_section.unbuffered.ref_raw_card,
1490 			  "ref_raw_card  (Unbuffered) Reference Raw Card Used");
1491 		PRINT_NXS(131, spd->mod_section.unbuffered.addr_mapping,
1492 			  "addr_mapping  (Unbuffered) Address mapping from Edge Connector to DRAM");
1493 		PRINT_NNXXS(254, 255, spd->mod_section.unbuffered.crc[0],
1494 			    spd->mod_section.unbuffered.crc[1], "  Module CRC");
1495 		break;
1496 	case 0x01:  /* RDIMM */
1497 		PRINT_NXS(128, spd->mod_section.registered.mod_height,
1498 			  "mod_height    (Registered) Module Nominal Height");
1499 		PRINT_NXS(129, spd->mod_section.registered.mod_thickness,
1500 			  "mod_thickness (Registered) Module Maximum Thickness");
1501 		PRINT_NXS(130, spd->mod_section.registered.ref_raw_card,
1502 			  "ref_raw_card  (Registered) Reference Raw Card Used");
1503 		PRINT_NXS(131, spd->mod_section.registered.modu_attr,
1504 			  "modu_attr     (Registered) DIMM Module Attributes");
1505 		PRINT_NXS(132, spd->mod_section.registered.thermal,
1506 			  "thermal       (Registered) Thermal Heat Spreader Solution");
1507 		PRINT_NXS(133, spd->mod_section.registered.reg_id_lo,
1508 			  "reg_id_lo     (Registered) Register Manufacturer ID Code, LSB");
1509 		PRINT_NXS(134, spd->mod_section.registered.reg_id_hi,
1510 			  "reg_id_hi     (Registered) Register Manufacturer ID Code, MSB");
1511 		PRINT_NXS(135, spd->mod_section.registered.reg_rev,
1512 			  "reg_rev       (Registered) Register Revision Number");
1513 		PRINT_NXS(136, spd->mod_section.registered.reg_map,
1514 			  "reg_map       (Registered) Address mapping");
1515 		PRINT_NNXXS(254, 255, spd->mod_section.registered.crc[0],
1516 			    spd->mod_section.registered.crc[1], "  Module CRC");
1517 		break;
1518 	case 0x04:  /* LRDIMM */
1519 		PRINT_NXS(128, spd->mod_section.loadreduced.mod_height,
1520 			  "mod_height    (Loadreduced) Module Nominal Height");
1521 		PRINT_NXS(129, spd->mod_section.loadreduced.mod_thickness,
1522 			  "mod_thickness (Loadreduced) Module Maximum Thickness");
1523 		PRINT_NXS(130, spd->mod_section.loadreduced.ref_raw_card,
1524 			  "ref_raw_card  (Loadreduced) Reference Raw Card Used");
1525 		PRINT_NXS(131, spd->mod_section.loadreduced.modu_attr,
1526 			  "modu_attr     (Loadreduced) DIMM Module Attributes");
1527 		PRINT_NXS(132, spd->mod_section.loadreduced.thermal,
1528 			  "thermal       (Loadreduced) Thermal Heat Spreader Solution");
1529 		PRINT_NXS(133, spd->mod_section.loadreduced.reg_id_lo,
1530 			  "reg_id_lo     (Loadreduced) Register Manufacturer ID Code, LSB");
1531 		PRINT_NXS(134, spd->mod_section.loadreduced.reg_id_hi,
1532 			  "reg_id_hi     (Loadreduced) Register Manufacturer ID Code, MSB");
1533 		PRINT_NXS(135, spd->mod_section.loadreduced.reg_rev,
1534 			  "reg_rev       (Loadreduced) Register Revision Number");
1535 		PRINT_NXS(136, spd->mod_section.loadreduced.reg_map,
1536 			  "reg_map       (Loadreduced) Address mapping");
1537 		PRINT_NXS(137, spd->mod_section.loadreduced.reg_drv,
1538 			  "reg_drv       (Loadreduced) Reg output drive strength");
1539 		PRINT_NXS(138, spd->mod_section.loadreduced.reg_drv_ck,
1540 			  "reg_drv_ck    (Loadreduced) Reg output drive strength for CK");
1541 		PRINT_NXS(139, spd->mod_section.loadreduced.data_buf_rev,
1542 			  "data_buf_rev  (Loadreduced) Data Buffer Revision Numbe");
1543 		PRINT_NXS(140, spd->mod_section.loadreduced.vrefqe_r0,
1544 			  "vrefqe_r0     (Loadreduced) DRAM VrefDQ for Package Rank 0");
1545 		PRINT_NXS(141, spd->mod_section.loadreduced.vrefqe_r1,
1546 			  "vrefqe_r1     (Loadreduced) DRAM VrefDQ for Package Rank 1");
1547 		PRINT_NXS(142, spd->mod_section.loadreduced.vrefqe_r2,
1548 			  "vrefqe_r2     (Loadreduced) DRAM VrefDQ for Package Rank 2");
1549 		PRINT_NXS(143, spd->mod_section.loadreduced.vrefqe_r3,
1550 			  "vrefqe_r3     (Loadreduced) DRAM VrefDQ for Package Rank 3");
1551 		PRINT_NXS(144, spd->mod_section.loadreduced.data_intf,
1552 			  "data_intf     (Loadreduced) Data Buffer VrefDQ for DRAM Interface");
1553 		PRINT_NXS(145, spd->mod_section.loadreduced.data_drv_1866,
1554 			  "data_drv_1866 (Loadreduced) Data Buffer MDQ Drive Strength and RTT");
1555 		PRINT_NXS(146, spd->mod_section.loadreduced.data_drv_2400,
1556 			  "data_drv_2400 (Loadreduced) Data Buffer MDQ Drive Strength and RTT");
1557 		PRINT_NXS(147, spd->mod_section.loadreduced.data_drv_3200,
1558 			  "data_drv_3200 (Loadreduced) Data Buffer MDQ Drive Strength and RTT");
1559 		PRINT_NXS(148, spd->mod_section.loadreduced.dram_drv,
1560 			  "dram_drv      (Loadreduced) DRAM Drive Strength");
1561 		PRINT_NXS(149, spd->mod_section.loadreduced.dram_odt_1866,
1562 			  "dram_odt_1866 (Loadreduced) DRAM ODT (RTT_WR, RTT_NOM)");
1563 		PRINT_NXS(150, spd->mod_section.loadreduced.dram_odt_2400,
1564 			  "dram_odt_2400 (Loadreduced) DRAM ODT (RTT_WR, RTT_NOM)");
1565 		PRINT_NXS(151, spd->mod_section.loadreduced.dram_odt_3200,
1566 			  "dram_odt_3200 (Loadreduced) DRAM ODT (RTT_WR, RTT_NOM)");
1567 		PRINT_NXS(152, spd->mod_section.loadreduced.dram_odt_park_1866,
1568 			  "dram_odt_park_1866 (Loadreduced) DRAM ODT (RTT_PARK)");
1569 		PRINT_NXS(153, spd->mod_section.loadreduced.dram_odt_park_2400,
1570 			  "dram_odt_park_2400 (Loadreduced) DRAM ODT (RTT_PARK)");
1571 		PRINT_NXS(154, spd->mod_section.loadreduced.dram_odt_park_3200,
1572 			  "dram_odt_park_3200 (Loadreduced) DRAM ODT (RTT_PARK)");
1573 		PRINT_NNXXS(254, 255, spd->mod_section.loadreduced.crc[0],
1574 			    spd->mod_section.loadreduced.crc[1],
1575 			    "  Module CRC");
1576 		break;
1577 	default:
1578 		/* Module-specific Section, Unsupported Module Type */
1579 		printf("%-3d-%3d: ", 128, 255);
1580 
1581 		for (i = 128; i <= 255; i++)
1582 			printf("%02x", spd->mod_section.uc[i - 128]);
1583 
1584 		break;
1585 	}
1586 
1587 	/* Unique Module ID: Bytes 320-383 */
1588 	PRINT_NXS(320, spd->mmid_lsb, "Module MfgID Code LSB - JEP-106");
1589 	PRINT_NXS(321, spd->mmid_msb, "Module MfgID Code MSB - JEP-106");
1590 	PRINT_NXS(322, spd->mloc,     "Mfg Location");
1591 	PRINT_NNXXS(323, 324, spd->mdate[0], spd->mdate[1], "Mfg Date");
1592 
1593 	printf("%-3d-%3d: ", 325, 328);
1594 
1595 	for (i = 325; i <= 328; i++)
1596 		printf("%02x ", spd->sernum[i - 325]);
1597 	printf("   Module Serial Number\n");
1598 
1599 	printf("%-3d-%3d: ", 329, 348);
1600 	for (i = 329; i <= 348; i++)
1601 		printf("%02x ", spd->mpart[i - 329]);
1602 	printf("   Mfg's Module Part Number\n");
1603 
1604 	PRINT_NXS(349, spd->mrev, "Module Revision code");
1605 	PRINT_NXS(350, spd->dmid_lsb, "DRAM MfgID Code LSB - JEP-106");
1606 	PRINT_NXS(351, spd->dmid_msb, "DRAM MfgID Code MSB - JEP-106");
1607 	PRINT_NXS(352, spd->stepping, "DRAM stepping");
1608 
1609 	printf("%-3d-%3d: ", 353, 381);
1610 	for (i = 353; i <= 381; i++)
1611 		printf("%02x ", spd->msd[i - 353]);
1612 	printf("   Mfg's Specific Data\n");
1613 }
1614 #endif
1615 
1616 static inline void generic_spd_dump(const generic_spd_eeprom_t *spd)
1617 {
1618 #if defined(CONFIG_SYS_FSL_DDR1)
1619 	ddr1_spd_dump(spd);
1620 #elif defined(CONFIG_SYS_FSL_DDR2)
1621 	ddr2_spd_dump(spd);
1622 #elif defined(CONFIG_SYS_FSL_DDR3)
1623 	ddr3_spd_dump(spd);
1624 #elif defined(CONFIG_SYS_FSL_DDR4)
1625 	ddr4_spd_dump(spd);
1626 #endif
1627 }
1628 
1629 static void fsl_ddr_printinfo(const fsl_ddr_info_t *pinfo,
1630 			unsigned int ctrl_mask,
1631 			unsigned int dimm_mask,
1632 			unsigned int do_mask)
1633 {
1634 	unsigned int i, j, retval;
1635 
1636 	/* STEP 1:  DIMM SPD data */
1637 	if (do_mask & STEP_GET_SPD) {
1638 		for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
1639 			if (!(ctrl_mask & (1 << i)))
1640 				continue;
1641 
1642 			for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) {
1643 				if (!(dimm_mask & (1 << j)))
1644 					continue;
1645 
1646 				printf("SPD info:  Controller=%u "
1647 						"DIMM=%u\n", i, j);
1648 				generic_spd_dump(
1649 					&(pinfo->spd_installed_dimms[i][j]));
1650 				printf("\n");
1651 			}
1652 			printf("\n");
1653 		}
1654 		printf("\n");
1655 	}
1656 
1657 	/* STEP 2:  DIMM Parameters */
1658 	if (do_mask & STEP_COMPUTE_DIMM_PARMS) {
1659 		for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
1660 			if (!(ctrl_mask & (1 << i)))
1661 				continue;
1662 			for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) {
1663 				if (!(dimm_mask & (1 << j)))
1664 					continue;
1665 				printf("DIMM parameters:  Controller=%u "
1666 						"DIMM=%u\n", i, j);
1667 				print_dimm_parameters(
1668 					&(pinfo->dimm_params[i][j]));
1669 				printf("\n");
1670 			}
1671 			printf("\n");
1672 		}
1673 		printf("\n");
1674 	}
1675 
1676 	/* STEP 3:  Common Parameters */
1677 	if (do_mask & STEP_COMPUTE_COMMON_PARMS) {
1678 		for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
1679 			if (!(ctrl_mask & (1 << i)))
1680 				continue;
1681 			printf("\"lowest common\" DIMM parameters:  "
1682 					"Controller=%u\n", i);
1683 			print_lowest_common_dimm_parameters(
1684 				&pinfo->common_timing_params[i]);
1685 			printf("\n");
1686 		}
1687 		printf("\n");
1688 	}
1689 
1690 	/* STEP 4:  User Configuration Options */
1691 	if (do_mask & STEP_GATHER_OPTS) {
1692 		for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
1693 			if (!(ctrl_mask & (1 << i)))
1694 				continue;
1695 			printf("User Config Options: Controller=%u\n", i);
1696 			print_memctl_options(&pinfo->memctl_opts[i]);
1697 			printf("\n");
1698 		}
1699 		printf("\n");
1700 	}
1701 
1702 	/* STEP 5:  Address assignment */
1703 	if (do_mask & STEP_ASSIGN_ADDRESSES) {
1704 		for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
1705 			if (!(ctrl_mask & (1 << i)))
1706 				continue;
1707 			for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) {
1708 				printf("Address Assignment: Controller=%u "
1709 						"DIMM=%u\n", i, j);
1710 				printf("Don't have this functionality yet\n");
1711 			}
1712 			printf("\n");
1713 		}
1714 		printf("\n");
1715 	}
1716 
1717 	/* STEP 6:  computed controller register values */
1718 	if (do_mask & STEP_COMPUTE_REGS) {
1719 		for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
1720 			if (!(ctrl_mask & (1 << i)))
1721 				continue;
1722 			printf("Computed Register Values: Controller=%u\n", i);
1723 			print_fsl_memctl_config_regs(
1724 				&pinfo->fsl_ddr_config_reg[i]);
1725 			retval = check_fsl_memctl_config_regs(
1726 				&pinfo->fsl_ddr_config_reg[i]);
1727 			if (retval) {
1728 				printf("check_fsl_memctl_config_regs "
1729 					"result = %u\n", retval);
1730 			}
1731 			printf("\n");
1732 		}
1733 		printf("\n");
1734 	}
1735 }
1736 
1737 struct data_strings {
1738 	const char *data_name;
1739 	unsigned int step_mask;
1740 	unsigned int dimm_number_required;
1741 };
1742 
1743 #define DATA_OPTIONS(name, step, dimm) {#name, step, dimm}
1744 
1745 static unsigned int fsl_ddr_parse_interactive_cmd(
1746 	char **argv,
1747 	int argc,
1748 	unsigned int *pstep_mask,
1749 	unsigned int *pctlr_mask,
1750 	unsigned int *pdimm_mask,
1751 	unsigned int *pdimm_number_required
1752 	 ) {
1753 
1754 	static const struct data_strings options[] = {
1755 		DATA_OPTIONS(spd, STEP_GET_SPD, 1),
1756 		DATA_OPTIONS(dimmparms, STEP_COMPUTE_DIMM_PARMS, 1),
1757 		DATA_OPTIONS(commonparms, STEP_COMPUTE_COMMON_PARMS, 0),
1758 		DATA_OPTIONS(opts, STEP_GATHER_OPTS, 0),
1759 		DATA_OPTIONS(addresses, STEP_ASSIGN_ADDRESSES, 0),
1760 		DATA_OPTIONS(regs, STEP_COMPUTE_REGS, 0),
1761 	};
1762 	static const unsigned int n_opts = ARRAY_SIZE(options);
1763 
1764 	unsigned int i, j;
1765 	unsigned int error = 0;
1766 
1767 	for (i = 1; i < argc; i++) {
1768 		unsigned int matched = 0;
1769 
1770 		for (j = 0; j < n_opts; j++) {
1771 			if (strcmp(options[j].data_name, argv[i]) != 0)
1772 				continue;
1773 			*pstep_mask |= options[j].step_mask;
1774 			*pdimm_number_required =
1775 				options[j].dimm_number_required;
1776 			matched = 1;
1777 			break;
1778 		}
1779 
1780 		if (matched)
1781 			continue;
1782 
1783 		if (argv[i][0] == 'c') {
1784 			char c = argv[i][1];
1785 			if (isdigit(c))
1786 				*pctlr_mask |= 1 << (c - '0');
1787 			continue;
1788 		}
1789 
1790 		if (argv[i][0] == 'd') {
1791 			char c = argv[i][1];
1792 			if (isdigit(c))
1793 				*pdimm_mask |= 1 << (c - '0');
1794 			continue;
1795 		}
1796 
1797 		printf("unknown arg %s\n", argv[i]);
1798 		*pstep_mask = 0;
1799 		error = 1;
1800 		break;
1801 	}
1802 
1803 	return error;
1804 }
1805 
1806 int fsl_ddr_interactive_env_var_exists(void)
1807 {
1808 	char buffer[CONFIG_SYS_CBSIZE];
1809 
1810 	if (getenv_f("ddr_interactive", buffer, CONFIG_SYS_CBSIZE) >= 0)
1811 		return 1;
1812 
1813 	return 0;
1814 }
1815 
1816 unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo, int var_is_set)
1817 {
1818 	unsigned long long ddrsize;
1819 	const char *prompt = "FSL DDR>";
1820 	char buffer[CONFIG_SYS_CBSIZE];
1821 	char buffer2[CONFIG_SYS_CBSIZE];
1822 	char *p = NULL;
1823 	char *argv[CONFIG_SYS_MAXARGS + 1];	/* NULL terminated */
1824 	int argc;
1825 	unsigned int next_step = STEP_GET_SPD;
1826 	const char *usage = {
1827 		"commands:\n"
1828 		"print      print SPD and intermediate computed data\n"
1829 		"reset      reboot machine\n"
1830 		"recompute  reload SPD and options to default and recompute regs\n"
1831 		"edit       modify spd, parameter, or option\n"
1832 		"compute    recompute registers from current next_step to end\n"
1833 		"copy       copy parameters\n"
1834 		"next_step  shows current next_step\n"
1835 		"help       this message\n"
1836 		"go         program the memory controller and continue with u-boot\n"
1837 	};
1838 
1839 	if (var_is_set) {
1840 		if (getenv_f("ddr_interactive", buffer2, CONFIG_SYS_CBSIZE) > 0) {
1841 			p = buffer2;
1842 		} else {
1843 			var_is_set = 0;
1844 		}
1845 	}
1846 
1847 	/*
1848 	 * The strategy for next_step is that it points to the next
1849 	 * step in the computation process that needs to be done.
1850 	 */
1851 	while (1) {
1852 		if (var_is_set) {
1853 			char *pend = strchr(p, ';');
1854 			if (pend) {
1855 				/* found command separator, copy sub-command */
1856 				*pend = '\0';
1857 				strcpy(buffer, p);
1858 				p = pend + 1;
1859 			} else {
1860 				/* separator not found, copy whole string */
1861 				strcpy(buffer, p);
1862 				p = NULL;
1863 				var_is_set = 0;
1864 			}
1865 		} else {
1866 			/*
1867 			 * No need to worry for buffer overflow here in
1868 			 * this function;  cli_readline() maxes out at
1869 			 * CFG_CBSIZE
1870 			 */
1871 			cli_readline_into_buffer(prompt, buffer, 0);
1872 		}
1873 		argc = cli_simple_parse_line(buffer, argv);
1874 		if (argc == 0)
1875 			continue;
1876 
1877 
1878 		if (strcmp(argv[0], "help") == 0) {
1879 			puts(usage);
1880 			continue;
1881 		}
1882 
1883 		if (strcmp(argv[0], "next_step") == 0) {
1884 			printf("next_step = 0x%02X (%s)\n",
1885 			       next_step,
1886 			       step_to_string(next_step));
1887 			continue;
1888 		}
1889 
1890 		if (strcmp(argv[0], "copy") == 0) {
1891 			unsigned int error = 0;
1892 			unsigned int step_mask = 0;
1893 			unsigned int src_ctlr_mask = 0;
1894 			unsigned int src_dimm_mask = 0;
1895 			unsigned int dimm_number_required = 0;
1896 			unsigned int src_ctlr_num = 0;
1897 			unsigned int src_dimm_num = 0;
1898 			unsigned int dst_ctlr_num = -1;
1899 			unsigned int dst_dimm_num = -1;
1900 			unsigned int i, num_dest_parms;
1901 
1902 			if (argc == 1) {
1903 				printf("copy <src c#> <src d#> <spd|dimmparms|commonparms|opts|addresses|regs> <dst c#> <dst d#>\n");
1904 				continue;
1905 			}
1906 
1907 			error = fsl_ddr_parse_interactive_cmd(
1908 				argv, argc,
1909 				&step_mask,
1910 				&src_ctlr_mask,
1911 				&src_dimm_mask,
1912 				&dimm_number_required
1913 			);
1914 
1915 			/* XXX: only dimm_number_required and step_mask will
1916 			   be used by this function.  Parse the controller and
1917 			   DIMM number separately because it is easier.  */
1918 
1919 			if (error)
1920 				continue;
1921 
1922 			/* parse source destination controller / DIMM */
1923 
1924 			num_dest_parms = dimm_number_required ? 2 : 1;
1925 
1926 			for (i = 0; i < argc; i++) {
1927 				if (argv[i][0] == 'c') {
1928 					char c = argv[i][1];
1929 					if (isdigit(c)) {
1930 						src_ctlr_num = (c - '0');
1931 						break;
1932 					}
1933 				}
1934 			}
1935 
1936 			for (i = 0; i < argc; i++) {
1937 				if (argv[i][0] == 'd') {
1938 					char c = argv[i][1];
1939 					if (isdigit(c)) {
1940 						src_dimm_num = (c - '0');
1941 						break;
1942 					}
1943 				}
1944 			}
1945 
1946 			/* parse destination controller / DIMM */
1947 
1948 			for (i = argc - 1; i >= argc - num_dest_parms; i--) {
1949 				if (argv[i][0] == 'c') {
1950 					char c = argv[i][1];
1951 					if (isdigit(c)) {
1952 						dst_ctlr_num = (c - '0');
1953 						break;
1954 					}
1955 				}
1956 			}
1957 
1958 			for (i = argc - 1; i >= argc - num_dest_parms; i--) {
1959 				if (argv[i][0] == 'd') {
1960 					char c = argv[i][1];
1961 					if (isdigit(c)) {
1962 						dst_dimm_num = (c - '0');
1963 						break;
1964 					}
1965 				}
1966 			}
1967 
1968 			/* TODO: validate inputs */
1969 
1970 			debug("src_ctlr_num = %u, src_dimm_num = %u, dst_ctlr_num = %u, dst_dimm_num = %u, step_mask = %x\n",
1971 				src_ctlr_num, src_dimm_num, dst_ctlr_num, dst_dimm_num, step_mask);
1972 
1973 
1974 			switch (step_mask) {
1975 
1976 			case STEP_GET_SPD:
1977 				memcpy(&(pinfo->spd_installed_dimms[dst_ctlr_num][dst_dimm_num]),
1978 					&(pinfo->spd_installed_dimms[src_ctlr_num][src_dimm_num]),
1979 					sizeof(pinfo->spd_installed_dimms[0][0]));
1980 				break;
1981 
1982 			case STEP_COMPUTE_DIMM_PARMS:
1983 				memcpy(&(pinfo->dimm_params[dst_ctlr_num][dst_dimm_num]),
1984 					&(pinfo->dimm_params[src_ctlr_num][src_dimm_num]),
1985 					sizeof(pinfo->dimm_params[0][0]));
1986 				break;
1987 
1988 			case STEP_COMPUTE_COMMON_PARMS:
1989 				memcpy(&(pinfo->common_timing_params[dst_ctlr_num]),
1990 					&(pinfo->common_timing_params[src_ctlr_num]),
1991 					sizeof(pinfo->common_timing_params[0]));
1992 				break;
1993 
1994 			case STEP_GATHER_OPTS:
1995 				memcpy(&(pinfo->memctl_opts[dst_ctlr_num]),
1996 					&(pinfo->memctl_opts[src_ctlr_num]),
1997 					sizeof(pinfo->memctl_opts[0]));
1998 				break;
1999 
2000 			/* someday be able to have addresses to copy addresses... */
2001 
2002 			case STEP_COMPUTE_REGS:
2003 				memcpy(&(pinfo->fsl_ddr_config_reg[dst_ctlr_num]),
2004 					&(pinfo->fsl_ddr_config_reg[src_ctlr_num]),
2005 					sizeof(pinfo->memctl_opts[0]));
2006 				break;
2007 
2008 			default:
2009 				printf("unexpected step_mask value\n");
2010 			}
2011 
2012 			continue;
2013 
2014 		}
2015 
2016 		if (strcmp(argv[0], "edit") == 0) {
2017 			unsigned int error = 0;
2018 			unsigned int step_mask = 0;
2019 			unsigned int ctlr_mask = 0;
2020 			unsigned int dimm_mask = 0;
2021 			char *p_element = NULL;
2022 			char *p_value = NULL;
2023 			unsigned int dimm_number_required = 0;
2024 			unsigned int ctrl_num;
2025 			unsigned int dimm_num;
2026 
2027 			if (argc == 1) {
2028 				/* Only the element and value must be last */
2029 				printf("edit <c#> <d#> "
2030 					"<spd|dimmparms|commonparms|opts|"
2031 					"addresses|regs> <element> <value>\n");
2032 				printf("for spd, specify byte number for "
2033 					"element\n");
2034 				continue;
2035 			}
2036 
2037 			error = fsl_ddr_parse_interactive_cmd(
2038 				argv, argc - 2,
2039 				&step_mask,
2040 				&ctlr_mask,
2041 				&dimm_mask,
2042 				&dimm_number_required
2043 			);
2044 
2045 			if (error)
2046 				continue;
2047 
2048 
2049 			/* Check arguments */
2050 
2051 			/* ERROR: If no steps were found */
2052 			if (step_mask == 0) {
2053 				printf("Error: No valid steps were specified "
2054 						"in argument.\n");
2055 				continue;
2056 			}
2057 
2058 			/* ERROR: If multiple steps were found */
2059 			if (step_mask & (step_mask - 1)) {
2060 				printf("Error: Multiple steps specified in "
2061 						"argument.\n");
2062 				continue;
2063 			}
2064 
2065 			/* ERROR: Controller not specified */
2066 			if (ctlr_mask == 0) {
2067 				printf("Error: controller number not "
2068 					"specified or no element and "
2069 					"value specified\n");
2070 				continue;
2071 			}
2072 
2073 			if (ctlr_mask & (ctlr_mask - 1)) {
2074 				printf("Error: multiple controllers "
2075 						"specified, %X\n", ctlr_mask);
2076 				continue;
2077 			}
2078 
2079 			/* ERROR: DIMM number not specified */
2080 			if (dimm_number_required && dimm_mask == 0) {
2081 				printf("Error: DIMM number number not "
2082 					"specified or no element and "
2083 					"value specified\n");
2084 				continue;
2085 			}
2086 
2087 			if (dimm_mask & (dimm_mask - 1)) {
2088 				printf("Error: multipled DIMMs specified\n");
2089 				continue;
2090 			}
2091 
2092 			p_element = argv[argc - 2];
2093 			p_value = argv[argc - 1];
2094 
2095 			ctrl_num = __ilog2(ctlr_mask);
2096 			dimm_num = __ilog2(dimm_mask);
2097 
2098 			switch (step_mask) {
2099 			case STEP_GET_SPD:
2100 				{
2101 					unsigned int element_num;
2102 					unsigned int value;
2103 
2104 					element_num = simple_strtoul(p_element,
2105 								     NULL, 0);
2106 					value = simple_strtoul(p_value,
2107 							       NULL, 0);
2108 					fsl_ddr_spd_edit(pinfo,
2109 							       ctrl_num,
2110 							       dimm_num,
2111 							       element_num,
2112 							       value);
2113 					next_step = STEP_COMPUTE_DIMM_PARMS;
2114 				}
2115 				break;
2116 
2117 			case STEP_COMPUTE_DIMM_PARMS:
2118 				fsl_ddr_dimm_parameters_edit(
2119 						 pinfo, ctrl_num, dimm_num,
2120 						 p_element, p_value);
2121 				next_step = STEP_COMPUTE_COMMON_PARMS;
2122 				break;
2123 
2124 			case STEP_COMPUTE_COMMON_PARMS:
2125 				lowest_common_dimm_parameters_edit(pinfo,
2126 						ctrl_num, p_element, p_value);
2127 				next_step = STEP_GATHER_OPTS;
2128 				break;
2129 
2130 			case STEP_GATHER_OPTS:
2131 				fsl_ddr_options_edit(pinfo, ctrl_num,
2132 							   p_element, p_value);
2133 				next_step = STEP_ASSIGN_ADDRESSES;
2134 				break;
2135 
2136 			case STEP_ASSIGN_ADDRESSES:
2137 				printf("editing of address assignment "
2138 						"not yet implemented\n");
2139 				break;
2140 
2141 			case STEP_COMPUTE_REGS:
2142 				{
2143 					fsl_ddr_regs_edit(pinfo,
2144 								ctrl_num,
2145 								p_element,
2146 								p_value);
2147 					next_step = STEP_PROGRAM_REGS;
2148 				}
2149 				break;
2150 
2151 			default:
2152 				printf("programming error\n");
2153 				while (1)
2154 					;
2155 				break;
2156 			}
2157 			continue;
2158 		}
2159 
2160 		if (strcmp(argv[0], "reset") == 0) {
2161 			/*
2162 			 * Reboot machine.
2163 			 * Args don't seem to matter because this
2164 			 * doesn't return
2165 			 */
2166 			do_reset(NULL, 0, 0, NULL);
2167 			printf("Reset didn't work\n");
2168 		}
2169 
2170 		if (strcmp(argv[0], "recompute") == 0) {
2171 			/*
2172 			 * Recalculate everything, starting with
2173 			 * loading SPD EEPROM from DIMMs
2174 			 */
2175 			next_step = STEP_GET_SPD;
2176 			ddrsize = fsl_ddr_compute(pinfo, next_step, 0);
2177 			continue;
2178 		}
2179 
2180 		if (strcmp(argv[0], "compute") == 0) {
2181 			/*
2182 			 * Compute rest of steps starting at
2183 			 * the current next_step/
2184 			 */
2185 			ddrsize = fsl_ddr_compute(pinfo, next_step, 0);
2186 			continue;
2187 		}
2188 
2189 		if (strcmp(argv[0], "print") == 0) {
2190 			unsigned int error = 0;
2191 			unsigned int step_mask = 0;
2192 			unsigned int ctlr_mask = 0;
2193 			unsigned int dimm_mask = 0;
2194 			unsigned int dimm_number_required = 0;
2195 
2196 			if (argc == 1) {
2197 				printf("print [c<n>] [d<n>] [spd] [dimmparms] "
2198 				  "[commonparms] [opts] [addresses] [regs]\n");
2199 				continue;
2200 			}
2201 
2202 			error = fsl_ddr_parse_interactive_cmd(
2203 				argv, argc,
2204 				&step_mask,
2205 				&ctlr_mask,
2206 				&dimm_mask,
2207 				&dimm_number_required
2208 			);
2209 
2210 			if (error)
2211 				continue;
2212 
2213 			/* If no particular controller was found, print all */
2214 			if (ctlr_mask == 0)
2215 				ctlr_mask = 0xFF;
2216 
2217 			/* If no particular dimm was found, print all dimms. */
2218 			if (dimm_mask == 0)
2219 				dimm_mask = 0xFF;
2220 
2221 			/* If no steps were found, print all steps. */
2222 			if (step_mask == 0)
2223 				step_mask = STEP_ALL;
2224 
2225 			fsl_ddr_printinfo(pinfo, ctlr_mask,
2226 						dimm_mask, step_mask);
2227 			continue;
2228 		}
2229 
2230 		if (strcmp(argv[0], "go") == 0) {
2231 			if (next_step)
2232 				ddrsize = fsl_ddr_compute(pinfo, next_step, 0);
2233 			break;
2234 		}
2235 
2236 		printf("unknown command %s\n", argv[0]);
2237 	}
2238 
2239 	debug("end of memory = %llu\n", (u64)ddrsize);
2240 
2241 	return ddrsize;
2242 }
2243