mmc: Add 'mmc rst-function' sub-command
[platform/kernel/u-boot.git] / common / cmd_mmc.c
1 /*
2  * (C) Copyright 2003
3  * Kyle Harris, kharris@nexus-tech.net
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <command.h>
10 #include <mmc.h>
11
12 static int curr_device = -1;
13 #ifndef CONFIG_GENERIC_MMC
14 int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
15 {
16         int dev;
17
18         if (argc < 2)
19                 return CMD_RET_USAGE;
20
21         if (strcmp(argv[1], "init") == 0) {
22                 if (argc == 2) {
23                         if (curr_device < 0)
24                                 dev = 1;
25                         else
26                                 dev = curr_device;
27                 } else if (argc == 3) {
28                         dev = (int)simple_strtoul(argv[2], NULL, 10);
29                 } else {
30                         return CMD_RET_USAGE;
31                 }
32
33                 if (mmc_legacy_init(dev) != 0) {
34                         puts("No MMC card found\n");
35                         return 1;
36                 }
37
38                 curr_device = dev;
39                 printf("mmc%d is available\n", curr_device);
40         } else if (strcmp(argv[1], "device") == 0) {
41                 if (argc == 2) {
42                         if (curr_device < 0) {
43                                 puts("No MMC device available\n");
44                                 return 1;
45                         }
46                 } else if (argc == 3) {
47                         dev = (int)simple_strtoul(argv[2], NULL, 10);
48
49 #ifdef CONFIG_SYS_MMC_SET_DEV
50                         if (mmc_set_dev(dev) != 0)
51                                 return 1;
52 #endif
53                         curr_device = dev;
54                 } else {
55                         return CMD_RET_USAGE;
56                 }
57
58                 printf("mmc%d is current device\n", curr_device);
59         } else {
60                 return CMD_RET_USAGE;
61         }
62
63         return 0;
64 }
65
66 U_BOOT_CMD(
67         mmc, 3, 1, do_mmc,
68         "MMC sub-system",
69         "init [dev] - init MMC sub system\n"
70         "mmc device [dev] - show or set current device"
71 );
72 #else /* !CONFIG_GENERIC_MMC */
73
74 enum mmc_state {
75         MMC_INVALID,
76         MMC_READ,
77         MMC_WRITE,
78         MMC_ERASE,
79 };
80 static void print_mmcinfo(struct mmc *mmc)
81 {
82         printf("Device: %s\n", mmc->cfg->name);
83         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
84         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
85         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
86                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
87                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
88
89         printf("Tran Speed: %d\n", mmc->tran_speed);
90         printf("Rd Block Len: %d\n", mmc->read_bl_len);
91
92         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
93                         (mmc->version >> 8) & 0xf, mmc->version & 0xff);
94
95         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
96         puts("Capacity: ");
97         print_size(mmc->capacity, "\n");
98
99         printf("Bus Width: %d-bit\n", mmc->bus_width);
100 }
101
102 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
103 {
104         struct mmc *mmc;
105
106         if (curr_device < 0) {
107                 if (get_mmc_num() > 0)
108                         curr_device = 0;
109                 else {
110                         puts("No MMC device available\n");
111                         return 1;
112                 }
113         }
114
115         mmc = find_mmc_device(curr_device);
116
117         if (mmc) {
118                 mmc_init(mmc);
119
120                 print_mmcinfo(mmc);
121                 return 0;
122         } else {
123                 printf("no mmc device at slot %x\n", curr_device);
124                 return 1;
125         }
126 }
127
128 U_BOOT_CMD(
129         mmcinfo, 1, 0, do_mmcinfo,
130         "display MMC info",
131         "- display info of the current MMC device"
132 );
133
134 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
135 {
136         enum mmc_state state;
137
138         if (argc < 2)
139                 return CMD_RET_USAGE;
140
141         if (curr_device < 0) {
142                 if (get_mmc_num() > 0)
143                         curr_device = 0;
144                 else {
145                         puts("No MMC device available\n");
146                         return 1;
147                 }
148         }
149
150         if (strcmp(argv[1], "rescan") == 0) {
151                 struct mmc *mmc;
152
153                 if (argc != 2)
154                         return CMD_RET_USAGE;
155
156                 mmc = find_mmc_device(curr_device);
157                 if (!mmc) {
158                         printf("no mmc device at slot %x\n", curr_device);
159                         return 1;
160                 }
161
162                 mmc->has_init = 0;
163
164                 if (mmc_init(mmc))
165                         return 1;
166                 else
167                         return 0;
168         } else if (strcmp(argv[1], "part") == 0) {
169                 block_dev_desc_t *mmc_dev;
170                 struct mmc *mmc;
171
172                 if (argc != 2)
173                         return CMD_RET_USAGE;
174
175                 mmc = find_mmc_device(curr_device);
176                 if (!mmc) {
177                         printf("no mmc device at slot %x\n", curr_device);
178                         return 1;
179                 }
180                 mmc_init(mmc);
181                 mmc_dev = mmc_get_dev(curr_device);
182                 if (mmc_dev != NULL &&
183                                 mmc_dev->type != DEV_TYPE_UNKNOWN) {
184                         print_part(mmc_dev);
185                         return 0;
186                 }
187
188                 puts("get mmc type error!\n");
189                 return 1;
190         } else if (strcmp(argv[1], "list") == 0) {
191                 if (argc != 2)
192                         return CMD_RET_USAGE;
193                 print_mmc_devices('\n');
194                 return 0;
195         } else if (strcmp(argv[1], "dev") == 0) {
196                 int dev, part = -1;
197                 struct mmc *mmc;
198
199                 if (argc == 2)
200                         dev = curr_device;
201                 else if (argc == 3)
202                         dev = simple_strtoul(argv[2], NULL, 10);
203                 else if (argc == 4) {
204                         dev = (int)simple_strtoul(argv[2], NULL, 10);
205                         part = (int)simple_strtoul(argv[3], NULL, 10);
206                         if (part > PART_ACCESS_MASK) {
207                                 printf("#part_num shouldn't be larger"
208                                         " than %d\n", PART_ACCESS_MASK);
209                                 return 1;
210                         }
211                 } else
212                         return CMD_RET_USAGE;
213
214                 mmc = find_mmc_device(dev);
215                 if (!mmc) {
216                         printf("no mmc device at slot %x\n", dev);
217                         return 1;
218                 }
219
220                 mmc_init(mmc);
221                 if (part != -1) {
222                         int ret;
223                         if (mmc->part_config == MMCPART_NOAVAILABLE) {
224                                 printf("Card doesn't support part_switch\n");
225                                 return 1;
226                         }
227
228                         if (part != mmc->part_num) {
229                                 ret = mmc_switch_part(dev, part);
230                                 if (!ret)
231                                         mmc->part_num = part;
232
233                                 printf("switch to partitions #%d, %s\n",
234                                                 part, (!ret) ? "OK" : "ERROR");
235                         }
236                 }
237                 curr_device = dev;
238                 if (mmc->part_config == MMCPART_NOAVAILABLE)
239                         printf("mmc%d is current device\n", curr_device);
240                 else
241                         printf("mmc%d(part %d) is current device\n",
242                                 curr_device, mmc->part_num);
243
244                 return 0;
245 #ifdef CONFIG_SUPPORT_EMMC_BOOT
246         } else if (strcmp(argv[1], "partconf") == 0) {
247                 int dev;
248                 struct mmc *mmc;
249                 u8 ack, part_num, access;
250
251                 if (argc == 6) {
252                         dev = simple_strtoul(argv[2], NULL, 10);
253                         ack = simple_strtoul(argv[3], NULL, 10);
254                         part_num = simple_strtoul(argv[4], NULL, 10);
255                         access = simple_strtoul(argv[5], NULL, 10);
256                 } else {
257                         return CMD_RET_USAGE;
258                 }
259
260                 mmc = find_mmc_device(dev);
261                 if (!mmc) {
262                         printf("no mmc device at slot %x\n", dev);
263                         return 1;
264                 }
265
266                 if (IS_SD(mmc)) {
267                         puts("PARTITION_CONFIG only exists on eMMC\n");
268                         return 1;
269                 }
270
271                 /* acknowledge to be sent during boot operation */
272                 return mmc_set_part_conf(mmc, ack, part_num, access);
273         } else if (strcmp(argv[1], "bootbus") == 0) {
274                 int dev;
275                 struct mmc *mmc;
276                 u8 width, reset, mode;
277
278                 if (argc == 6) {
279                         dev = simple_strtoul(argv[2], NULL, 10);
280                         width = simple_strtoul(argv[3], NULL, 10);
281                         reset = simple_strtoul(argv[4], NULL, 10);
282                         mode = simple_strtoul(argv[5], NULL, 10);
283                 } else {
284                         return CMD_RET_USAGE;
285                 }
286
287                 mmc = find_mmc_device(dev);
288                 if (!mmc) {
289                         printf("no mmc device at slot %x\n", dev);
290                         return 1;
291                 }
292
293                 if (IS_SD(mmc)) {
294                         puts("BOOT_BUS_WIDTH only exists on eMMC\n");
295                         return 1;
296                 }
297
298                 /* acknowledge to be sent during boot operation */
299                 return mmc_set_boot_bus_width(mmc, width, reset, mode);
300         } else if (strcmp(argv[1], "bootpart-resize") == 0) {
301                 int dev;
302                 struct mmc *mmc;
303                 u32 bootsize, rpmbsize;
304
305                 if (argc == 5) {
306                         dev = simple_strtoul(argv[2], NULL, 10);
307                         bootsize = simple_strtoul(argv[3], NULL, 10);
308                         rpmbsize = simple_strtoul(argv[4], NULL, 10);
309                 } else {
310                         return CMD_RET_USAGE;
311                 }
312
313                 mmc = find_mmc_device(dev);
314                 if (!mmc) {
315                         printf("no mmc device at slot %x\n", dev);
316                         return 1;
317                 }
318
319                 if (IS_SD(mmc)) {
320                         printf("It is not a EMMC device\n");
321                         return 1;
322                 }
323
324                 if (0 == mmc_boot_partition_size_change(mmc,
325                                                         bootsize, rpmbsize)) {
326                         printf("EMMC boot partition Size %d MB\n", bootsize);
327                         printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
328                         return 0;
329                 } else {
330                         printf("EMMC boot partition Size change Failed.\n");
331                         return 1;
332                 }
333         } else if (strcmp(argv[1], "rst-function") == 0) {
334                 /*
335                  * Set the RST_n_ENABLE bit of RST_n_FUNCTION
336                  * The only valid values are 0x0, 0x1 and 0x2 and writing
337                  * a value of 0x1 or 0x2 sets the value permanently.
338                  */
339                 int dev;
340                 struct mmc *mmc;
341                 u8 enable;
342
343                 if (argc == 4) {
344                         dev = simple_strtoul(argv[2], NULL, 10);
345                         enable = simple_strtoul(argv[3], NULL, 10);
346                 } else {
347                         return CMD_RET_USAGE;
348                 }
349
350                 if (enable > 2 || enable < 0) {
351                         puts("Invalid RST_n_ENABLE value\n");
352                         return CMD_RET_USAGE;
353                 }
354
355                 mmc = find_mmc_device(dev);
356                 if (!mmc) {
357                         printf("no mmc device at slot %x\n", dev);
358                         return 1;
359                 }
360
361                 if (IS_SD(mmc)) {
362                         puts("RST_n_FUNCTION only exists on eMMC\n");
363                         return 1;
364                 }
365
366                 return mmc_set_rst_n_function(mmc, enable);
367 #endif /* CONFIG_SUPPORT_EMMC_BOOT */
368         }
369
370         else if (argc == 3 && strcmp(argv[1], "setdsr") == 0) {
371                 struct mmc *mmc = find_mmc_device(curr_device);
372                 u32 val = simple_strtoul(argv[2], NULL, 16);
373                 int ret;
374
375                 if (!mmc) {
376                         printf("no mmc device at slot %x\n", curr_device);
377                         return 1;
378                 }
379                 ret = mmc_set_dsr(mmc, val);
380                 printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
381                 if (!ret) {
382                         mmc->has_init = 0;
383                         if (mmc_init(mmc))
384                                 return 1;
385                         else
386                                 return 0;
387                 }
388                 return ret;
389         }
390
391         state = MMC_INVALID;
392         if (argc == 5 && strcmp(argv[1], "read") == 0)
393                 state = MMC_READ;
394         else if (argc == 5 && strcmp(argv[1], "write") == 0)
395                 state = MMC_WRITE;
396         else if (argc == 4 && strcmp(argv[1], "erase") == 0)
397                 state = MMC_ERASE;
398
399         if (state != MMC_INVALID) {
400                 struct mmc *mmc = find_mmc_device(curr_device);
401                 int idx = 2;
402                 u32 blk, cnt, n;
403                 void *addr;
404
405                 if (state != MMC_ERASE) {
406                         addr = (void *)simple_strtoul(argv[idx], NULL, 16);
407                         ++idx;
408                 } else
409                         addr = NULL;
410                 blk = simple_strtoul(argv[idx], NULL, 16);
411                 cnt = simple_strtoul(argv[idx + 1], NULL, 16);
412
413                 if (!mmc) {
414                         printf("no mmc device at slot %x\n", curr_device);
415                         return 1;
416                 }
417
418                 printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
419                                 argv[1], curr_device, blk, cnt);
420
421                 mmc_init(mmc);
422
423                 if ((state == MMC_WRITE || state == MMC_ERASE)) {
424                         if (mmc_getwp(mmc) == 1) {
425                                 printf("Error: card is write protected!\n");
426                                 return 1;
427                         }
428                 }
429
430                 switch (state) {
431                 case MMC_READ:
432                         n = mmc->block_dev.block_read(curr_device, blk,
433                                                       cnt, addr);
434                         /* flush cache after read */
435                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
436                         break;
437                 case MMC_WRITE:
438                         n = mmc->block_dev.block_write(curr_device, blk,
439                                                       cnt, addr);
440                         break;
441                 case MMC_ERASE:
442                         n = mmc->block_dev.block_erase(curr_device, blk, cnt);
443                         break;
444                 default:
445                         BUG();
446                 }
447
448                 printf("%d blocks %s: %s\n",
449                                 n, argv[1], (n == cnt) ? "OK" : "ERROR");
450                 return (n == cnt) ? 0 : 1;
451         }
452
453         return CMD_RET_USAGE;
454 }
455
456 U_BOOT_CMD(
457         mmc, 6, 1, do_mmcops,
458         "MMC sub system",
459         "read addr blk# cnt\n"
460         "mmc write addr blk# cnt\n"
461         "mmc erase blk# cnt\n"
462         "mmc rescan\n"
463         "mmc part - lists available partition on current mmc device\n"
464         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
465         "mmc list - lists available devices\n"
466 #ifdef CONFIG_SUPPORT_EMMC_BOOT
467         "mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
468         " - Set the BOOT_BUS_WIDTH field of the specified device\n"
469         "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
470         " - Change sizes of boot and RPMB partitions of specified device\n"
471         "mmc partconf dev boot_ack boot_partition partition_access\n"
472         " - Change the bits of the PARTITION_CONFIG field of the specified device\n"
473         "mmc rst-function dev value\n"
474         " - Change the RST_n_FUNCTION field of the specified device\n"
475         "   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
476 #endif
477         "mmc setdsr - set DSR register value\n"
478         );
479 #endif /* !CONFIG_GENERIC_MMC */