fsl_esdhc: Update clock enable bits for USDHC
[oweals/u-boot.git] / tools / mxsboot.c
1 /*
2  * Freescale i.MX28 image generator
3  *
4  * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
5  * on behalf of DENX Software Engineering GmbH
6  *
7  * SPDX-License-Identifier:     GPL-2.0+
8  */
9
10 #include <fcntl.h>
11 #include <sys/stat.h>
12 #include <sys/types.h>
13 #include <unistd.h>
14
15 #include "compiler.h"
16
17 /* Taken from <linux/kernel.h> */
18 #define __round_mask(x, y) ((__typeof__(x))((y)-1))
19 #define round_down(x, y) ((x) & ~__round_mask(x, y))
20
21 /*
22  * Default BCB layout.
23  *
24  * TWEAK this if you have blown any OCOTP fuses.
25  */
26 #define STRIDE_PAGES            64
27 #define STRIDE_COUNT            4
28
29 /*
30  * Layout for 256Mb big NAND with 2048b page size, 64b OOB size and
31  * 128kb erase size.
32  *
33  * TWEAK this if you have different kind of NAND chip.
34  */
35 static uint32_t nand_writesize = 2048;
36 static uint32_t nand_oobsize = 64;
37 static uint32_t nand_erasesize = 128 * 1024;
38
39 /*
40  * Sector on which the SigmaTel boot partition (0x53) starts.
41  */
42 static uint32_t sd_sector = 2048;
43
44 /*
45  * Each of the U-Boot bootstreams is at maximum 1MB big.
46  *
47  * TWEAK this if, for some wild reason, you need to boot bigger image.
48  */
49 #define MAX_BOOTSTREAM_SIZE     (1 * 1024 * 1024)
50
51 /* i.MX28 NAND controller-specific constants. DO NOT TWEAK! */
52 #define MXS_NAND_DMA_DESCRIPTOR_COUNT           4
53 #define MXS_NAND_CHUNK_DATA_CHUNK_SIZE          512
54 #define MXS_NAND_METADATA_SIZE                  10
55 #define MXS_NAND_BITS_PER_ECC_LEVEL             13
56 #define MXS_NAND_COMMAND_BUFFER_SIZE            32
57
58 struct mx28_nand_fcb {
59         uint32_t                checksum;
60         uint32_t                fingerprint;
61         uint32_t                version;
62         struct {
63                 uint8_t                 data_setup;
64                 uint8_t                 data_hold;
65                 uint8_t                 address_setup;
66                 uint8_t                 dsample_time;
67                 uint8_t                 nand_timing_state;
68                 uint8_t                 rea;
69                 uint8_t                 rloh;
70                 uint8_t                 rhoh;
71         }                       timing;
72         uint32_t                page_data_size;
73         uint32_t                total_page_size;
74         uint32_t                sectors_per_block;
75         uint32_t                number_of_nands;                /* Ignored */
76         uint32_t                total_internal_die;             /* Ignored */
77         uint32_t                cell_type;                      /* Ignored */
78         uint32_t                ecc_block_n_ecc_type;
79         uint32_t                ecc_block_0_size;
80         uint32_t                ecc_block_n_size;
81         uint32_t                ecc_block_0_ecc_type;
82         uint32_t                metadata_bytes;
83         uint32_t                num_ecc_blocks_per_page;
84         uint32_t                ecc_block_n_ecc_level_sdk;      /* Ignored */
85         uint32_t                ecc_block_0_size_sdk;           /* Ignored */
86         uint32_t                ecc_block_n_size_sdk;           /* Ignored */
87         uint32_t                ecc_block_0_ecc_level_sdk;      /* Ignored */
88         uint32_t                num_ecc_blocks_per_page_sdk;    /* Ignored */
89         uint32_t                metadata_bytes_sdk;             /* Ignored */
90         uint32_t                erase_threshold;
91         uint32_t                boot_patch;
92         uint32_t                patch_sectors;
93         uint32_t                firmware1_starting_sector;
94         uint32_t                firmware2_starting_sector;
95         uint32_t                sectors_in_firmware1;
96         uint32_t                sectors_in_firmware2;
97         uint32_t                dbbt_search_area_start_address;
98         uint32_t                badblock_marker_byte;
99         uint32_t                badblock_marker_start_bit;
100         uint32_t                bb_marker_physical_offset;
101 };
102
103 struct mx28_nand_dbbt {
104         uint32_t                checksum;
105         uint32_t                fingerprint;
106         uint32_t                version;
107         uint32_t                number_bb;
108         uint32_t                number_2k_pages_bb;
109 };
110
111 struct mx28_nand_bbt {
112         uint32_t                nand;
113         uint32_t                number_bb;
114         uint32_t                badblock[510];
115 };
116
117 struct mx28_sd_drive_info {
118         uint32_t                chip_num;
119         uint32_t                drive_type;
120         uint32_t                tag;
121         uint32_t                first_sector_number;
122         uint32_t                sector_count;
123 };
124
125 struct mx28_sd_config_block {
126         uint32_t                        signature;
127         uint32_t                        primary_boot_tag;
128         uint32_t                        secondary_boot_tag;
129         uint32_t                        num_copies;
130         struct mx28_sd_drive_info       drv_info[1];
131 };
132
133 static inline uint32_t mx28_nand_ecc_chunk_cnt(uint32_t page_data_size)
134 {
135         return page_data_size / MXS_NAND_CHUNK_DATA_CHUNK_SIZE;
136 }
137
138 static inline uint32_t mx28_nand_ecc_size_in_bits(uint32_t ecc_strength)
139 {
140         return ecc_strength * MXS_NAND_BITS_PER_ECC_LEVEL;
141 }
142
143 static inline uint32_t mx28_nand_get_ecc_strength(uint32_t page_data_size,
144                                                 uint32_t page_oob_size)
145 {
146         int ecc_strength;
147
148         /*
149          * Determine the ECC layout with the formula:
150          *      ECC bits per chunk = (total page spare data bits) /
151          *              (bits per ECC level) / (chunks per page)
152          * where:
153          *      total page spare data bits =
154          *              (page oob size - meta data size) * (bits per byte)
155          */
156         ecc_strength = ((page_oob_size - MXS_NAND_METADATA_SIZE) * 8)
157                         / (MXS_NAND_BITS_PER_ECC_LEVEL *
158                                 mx28_nand_ecc_chunk_cnt(page_data_size));
159
160         return round_down(ecc_strength, 2);
161 }
162
163 static inline uint32_t mx28_nand_get_mark_offset(uint32_t page_data_size,
164                                                 uint32_t ecc_strength)
165 {
166         uint32_t chunk_data_size_in_bits;
167         uint32_t chunk_ecc_size_in_bits;
168         uint32_t chunk_total_size_in_bits;
169         uint32_t block_mark_chunk_number;
170         uint32_t block_mark_chunk_bit_offset;
171         uint32_t block_mark_bit_offset;
172
173         chunk_data_size_in_bits = MXS_NAND_CHUNK_DATA_CHUNK_SIZE * 8;
174         chunk_ecc_size_in_bits  = mx28_nand_ecc_size_in_bits(ecc_strength);
175
176         chunk_total_size_in_bits =
177                         chunk_data_size_in_bits + chunk_ecc_size_in_bits;
178
179         /* Compute the bit offset of the block mark within the physical page. */
180         block_mark_bit_offset = page_data_size * 8;
181
182         /* Subtract the metadata bits. */
183         block_mark_bit_offset -= MXS_NAND_METADATA_SIZE * 8;
184
185         /*
186          * Compute the chunk number (starting at zero) in which the block mark
187          * appears.
188          */
189         block_mark_chunk_number =
190                         block_mark_bit_offset / chunk_total_size_in_bits;
191
192         /*
193          * Compute the bit offset of the block mark within its chunk, and
194          * validate it.
195          */
196         block_mark_chunk_bit_offset = block_mark_bit_offset -
197                         (block_mark_chunk_number * chunk_total_size_in_bits);
198
199         if (block_mark_chunk_bit_offset > chunk_data_size_in_bits)
200                 return 1;
201
202         /*
203          * Now that we know the chunk number in which the block mark appears,
204          * we can subtract all the ECC bits that appear before it.
205          */
206         block_mark_bit_offset -=
207                 block_mark_chunk_number * chunk_ecc_size_in_bits;
208
209         return block_mark_bit_offset;
210 }
211
212 static inline uint32_t mx28_nand_mark_byte_offset(void)
213 {
214         uint32_t ecc_strength;
215         ecc_strength = mx28_nand_get_ecc_strength(nand_writesize, nand_oobsize);
216         return mx28_nand_get_mark_offset(nand_writesize, ecc_strength) >> 3;
217 }
218
219 static inline uint32_t mx28_nand_mark_bit_offset(void)
220 {
221         uint32_t ecc_strength;
222         ecc_strength = mx28_nand_get_ecc_strength(nand_writesize, nand_oobsize);
223         return mx28_nand_get_mark_offset(nand_writesize, ecc_strength) & 0x7;
224 }
225
226 static uint32_t mx28_nand_block_csum(uint8_t *block, uint32_t size)
227 {
228         uint32_t csum = 0;
229         int i;
230
231         for (i = 0; i < size; i++)
232                 csum += block[i];
233
234         return csum ^ 0xffffffff;
235 }
236
237 static struct mx28_nand_fcb *mx28_nand_get_fcb(uint32_t size)
238 {
239         struct mx28_nand_fcb *fcb;
240         uint32_t bcb_size_bytes;
241         uint32_t stride_size_bytes;
242         uint32_t bootstream_size_pages;
243         uint32_t fw1_start_page;
244         uint32_t fw2_start_page;
245
246         fcb = malloc(nand_writesize);
247         if (!fcb) {
248                 printf("MX28 NAND: Unable to allocate FCB\n");
249                 return NULL;
250         }
251
252         memset(fcb, 0, nand_writesize);
253
254         fcb->fingerprint =                      0x20424346;
255         fcb->version =                          0x01000000;
256
257         /*
258          * FIXME: These here are default values as found in kobs-ng. We should
259          * probably retrieve the data from NAND or something.
260          */
261         fcb->timing.data_setup =                80;
262         fcb->timing.data_hold =                 60;
263         fcb->timing.address_setup =             25;
264         fcb->timing.dsample_time =              6;
265
266         fcb->page_data_size =           nand_writesize;
267         fcb->total_page_size =          nand_writesize + nand_oobsize;
268         fcb->sectors_per_block =        nand_erasesize / nand_writesize;
269
270         fcb->num_ecc_blocks_per_page =  (nand_writesize / 512) - 1;
271         fcb->ecc_block_0_size =         512;
272         fcb->ecc_block_n_size =         512;
273         fcb->metadata_bytes =           10;
274         fcb->ecc_block_n_ecc_type = mx28_nand_get_ecc_strength(
275                                         nand_writesize, nand_oobsize) >> 1;
276         fcb->ecc_block_0_ecc_type = mx28_nand_get_ecc_strength(
277                                         nand_writesize, nand_oobsize) >> 1;
278         if (fcb->ecc_block_n_ecc_type == 0) {
279                 printf("MX28 NAND: Unsupported NAND geometry\n");
280                 goto err;
281         }
282
283         fcb->boot_patch =                       0;
284         fcb->patch_sectors =                    0;
285
286         fcb->badblock_marker_byte =     mx28_nand_mark_byte_offset();
287         fcb->badblock_marker_start_bit = mx28_nand_mark_bit_offset();
288         fcb->bb_marker_physical_offset = nand_writesize;
289
290         stride_size_bytes = STRIDE_PAGES * nand_writesize;
291         bcb_size_bytes = stride_size_bytes * STRIDE_COUNT;
292
293         bootstream_size_pages = (size + (nand_writesize - 1)) /
294                                         nand_writesize;
295
296         fw1_start_page = 2 * bcb_size_bytes / nand_writesize;
297         fw2_start_page = (2 * bcb_size_bytes + MAX_BOOTSTREAM_SIZE) /
298                                 nand_writesize;
299
300         fcb->firmware1_starting_sector =        fw1_start_page;
301         fcb->firmware2_starting_sector =        fw2_start_page;
302         fcb->sectors_in_firmware1 =             bootstream_size_pages;
303         fcb->sectors_in_firmware2 =             bootstream_size_pages;
304
305         fcb->dbbt_search_area_start_address =   STRIDE_PAGES * STRIDE_COUNT;
306
307         return fcb;
308
309 err:
310         free(fcb);
311         return NULL;
312 }
313
314 static struct mx28_nand_dbbt *mx28_nand_get_dbbt(void)
315 {
316         struct mx28_nand_dbbt *dbbt;
317
318         dbbt = malloc(nand_writesize);
319         if (!dbbt) {
320                 printf("MX28 NAND: Unable to allocate DBBT\n");
321                 return NULL;
322         }
323
324         memset(dbbt, 0, nand_writesize);
325
326         dbbt->fingerprint       = 0x54424244;
327         dbbt->version           = 0x1;
328
329         return dbbt;
330 }
331
332 static inline uint8_t mx28_nand_parity_13_8(const uint8_t b)
333 {
334         uint32_t parity = 0, tmp;
335
336         tmp = ((b >> 6) ^ (b >> 5) ^ (b >> 3) ^ (b >> 2)) & 1;
337         parity |= tmp << 0;
338
339         tmp = ((b >> 7) ^ (b >> 5) ^ (b >> 4) ^ (b >> 2) ^ (b >> 1)) & 1;
340         parity |= tmp << 1;
341
342         tmp = ((b >> 7) ^ (b >> 6) ^ (b >> 5) ^ (b >> 1) ^ (b >> 0)) & 1;
343         parity |= tmp << 2;
344
345         tmp = ((b >> 7) ^ (b >> 4) ^ (b >> 3) ^ (b >> 0)) & 1;
346         parity |= tmp << 3;
347
348         tmp = ((b >> 6) ^ (b >> 4) ^ (b >> 3) ^
349                 (b >> 2) ^ (b >> 1) ^ (b >> 0)) & 1;
350         parity |= tmp << 4;
351
352         return parity;
353 }
354
355 static uint8_t *mx28_nand_fcb_block(struct mx28_nand_fcb *fcb)
356 {
357         uint8_t *block;
358         uint8_t *ecc;
359         int i;
360
361         block = malloc(nand_writesize + nand_oobsize);
362         if (!block) {
363                 printf("MX28 NAND: Unable to allocate FCB block\n");
364                 return NULL;
365         }
366
367         memset(block, 0, nand_writesize + nand_oobsize);
368
369         /* Update the FCB checksum */
370         fcb->checksum = mx28_nand_block_csum(((uint8_t *)fcb) + 4, 508);
371
372         /* Figure 12-11. in iMX28RM, rev. 1, says FCB is at offset 12 */
373         memcpy(block + 12, fcb, sizeof(struct mx28_nand_fcb));
374
375         /* ECC is at offset 12 + 512 */
376         ecc = block + 12 + 512;
377
378         /* Compute the ECC parity */
379         for (i = 0; i < sizeof(struct mx28_nand_fcb); i++)
380                 ecc[i] = mx28_nand_parity_13_8(block[i + 12]);
381
382         return block;
383 }
384
385 static int mx28_nand_write_fcb(struct mx28_nand_fcb *fcb, uint8_t *buf)
386 {
387         uint32_t offset;
388         uint8_t *fcbblock;
389         int ret = 0;
390         int i;
391
392         fcbblock = mx28_nand_fcb_block(fcb);
393         if (!fcbblock)
394                 return -1;
395
396         for (i = 0; i < STRIDE_PAGES * STRIDE_COUNT; i += STRIDE_PAGES) {
397                 offset = i * nand_writesize;
398                 memcpy(buf + offset, fcbblock, nand_writesize + nand_oobsize);
399                 /* Mark the NAND page is OK. */
400                 buf[offset + nand_writesize] = 0xff;
401         }
402
403         free(fcbblock);
404         return ret;
405 }
406
407 static int mx28_nand_write_dbbt(struct mx28_nand_dbbt *dbbt, uint8_t *buf)
408 {
409         uint32_t offset;
410         int i = STRIDE_PAGES * STRIDE_COUNT;
411
412         for (; i < 2 * STRIDE_PAGES * STRIDE_COUNT; i += STRIDE_PAGES) {
413                 offset = i * nand_writesize;
414                 memcpy(buf + offset, dbbt, sizeof(struct mx28_nand_dbbt));
415         }
416
417         return 0;
418 }
419
420 static int mx28_nand_write_firmware(struct mx28_nand_fcb *fcb, int infd,
421                                     uint8_t *buf)
422 {
423         int ret;
424         off_t size;
425         uint32_t offset1, offset2;
426
427         size = lseek(infd, 0, SEEK_END);
428         lseek(infd, 0, SEEK_SET);
429
430         offset1 = fcb->firmware1_starting_sector * nand_writesize;
431         offset2 = fcb->firmware2_starting_sector * nand_writesize;
432
433         ret = read(infd, buf + offset1, size);
434         if (ret != size)
435                 return -1;
436
437         memcpy(buf + offset2, buf + offset1, size);
438
439         return 0;
440 }
441
442 static void usage(void)
443 {
444         printf(
445                 "Usage: mxsboot [ops] <type> <infile> <outfile>\n"
446                 "Augment BootStream file with a proper header for i.MX28 boot\n"
447                 "\n"
448                 "  <type>       type of image:\n"
449                 "                 \"nand\" for NAND image\n"
450                 "                 \"sd\" for SD image\n"
451                 "  <infile>     input file, the u-boot.sb bootstream\n"
452                 "  <outfile>    output file, the bootable image\n"
453                 "\n");
454         printf(
455                 "For NAND boot, these options are accepted:\n"
456                 "  -w <size>    NAND page size\n"
457                 "  -o <size>    NAND OOB size\n"
458                 "  -e <size>    NAND erase size\n"
459                 "\n"
460                 "For SD boot, these options are accepted:\n"
461                 "  -p <sector>  Sector where the SGTL partition starts\n"
462         );
463 }
464
465 static int mx28_create_nand_image(int infd, int outfd)
466 {
467         struct mx28_nand_fcb *fcb;
468         struct mx28_nand_dbbt *dbbt;
469         int ret = -1;
470         uint8_t *buf;
471         int size;
472         ssize_t wr_size;
473
474         size = nand_writesize * 512 + 2 * MAX_BOOTSTREAM_SIZE;
475
476         buf = malloc(size);
477         if (!buf) {
478                 printf("Can not allocate output buffer of %d bytes\n", size);
479                 goto err0;
480         }
481
482         memset(buf, 0, size);
483
484         fcb = mx28_nand_get_fcb(MAX_BOOTSTREAM_SIZE);
485         if (!fcb) {
486                 printf("Unable to compile FCB\n");
487                 goto err1;
488         }
489
490         dbbt = mx28_nand_get_dbbt();
491         if (!dbbt) {
492                 printf("Unable to compile DBBT\n");
493                 goto err2;
494         }
495
496         ret = mx28_nand_write_fcb(fcb, buf);
497         if (ret) {
498                 printf("Unable to write FCB to buffer\n");
499                 goto err3;
500         }
501
502         ret = mx28_nand_write_dbbt(dbbt, buf);
503         if (ret) {
504                 printf("Unable to write DBBT to buffer\n");
505                 goto err3;
506         }
507
508         ret = mx28_nand_write_firmware(fcb, infd, buf);
509         if (ret) {
510                 printf("Unable to write firmware to buffer\n");
511                 goto err3;
512         }
513
514         wr_size = write(outfd, buf, size);
515         if (wr_size != size) {
516                 ret = -1;
517                 goto err3;
518         }
519
520         ret = 0;
521
522 err3:
523         free(dbbt);
524 err2:
525         free(fcb);
526 err1:
527         free(buf);
528 err0:
529         return ret;
530 }
531
532 static int mx28_create_sd_image(int infd, int outfd)
533 {
534         int ret = -1;
535         uint32_t *buf;
536         int size;
537         off_t fsize;
538         ssize_t wr_size;
539         struct mx28_sd_config_block *cb;
540
541         fsize = lseek(infd, 0, SEEK_END);
542         lseek(infd, 0, SEEK_SET);
543         size = fsize + 4 * 512;
544
545         buf = malloc(size);
546         if (!buf) {
547                 printf("Can not allocate output buffer of %d bytes\n", size);
548                 goto err0;
549         }
550
551         ret = read(infd, (uint8_t *)buf + 4 * 512, fsize);
552         if (ret != fsize) {
553                 ret = -1;
554                 goto err1;
555         }
556
557         cb = (struct mx28_sd_config_block *)buf;
558
559         cb->signature = cpu_to_le32(0x00112233);
560         cb->primary_boot_tag = cpu_to_le32(0x1);
561         cb->secondary_boot_tag = cpu_to_le32(0x1);
562         cb->num_copies = cpu_to_le32(1);
563         cb->drv_info[0].chip_num = cpu_to_le32(0x0);
564         cb->drv_info[0].drive_type = cpu_to_le32(0x0);
565         cb->drv_info[0].tag = cpu_to_le32(0x1);
566         cb->drv_info[0].first_sector_number = cpu_to_le32(sd_sector + 4);
567         cb->drv_info[0].sector_count = cpu_to_le32((size - 4) / 512);
568
569         wr_size = write(outfd, buf, size);
570         if (wr_size != size) {
571                 ret = -1;
572                 goto err1;
573         }
574
575         ret = 0;
576
577 err1:
578         free(buf);
579 err0:
580         return ret;
581 }
582
583 static int parse_ops(int argc, char **argv)
584 {
585         int i;
586         int tmp;
587         char *end;
588         enum param {
589                 PARAM_WRITE,
590                 PARAM_OOB,
591                 PARAM_ERASE,
592                 PARAM_PART,
593                 PARAM_SD,
594                 PARAM_NAND
595         };
596         int type;
597
598         if (argc < 4)
599                 return -1;
600
601         for (i = 1; i < argc; i++) {
602                 if (!strncmp(argv[i], "-w", 2))
603                         type = PARAM_WRITE;
604                 else if (!strncmp(argv[i], "-o", 2))
605                         type = PARAM_OOB;
606                 else if (!strncmp(argv[i], "-e", 2))
607                         type = PARAM_ERASE;
608                 else if (!strncmp(argv[i], "-p", 2))
609                         type = PARAM_PART;
610                 else    /* SD/MMC */
611                         break;
612
613                 tmp = strtol(argv[++i], &end, 10);
614                 if (tmp % 2)
615                         return -1;
616                 if (tmp <= 0)
617                         return -1;
618
619                 if (type == PARAM_WRITE)
620                         nand_writesize = tmp;
621                 if (type == PARAM_OOB)
622                         nand_oobsize = tmp;
623                 if (type == PARAM_ERASE)
624                         nand_erasesize = tmp;
625                 if (type == PARAM_PART)
626                         sd_sector = tmp;
627         }
628
629         if (strcmp(argv[i], "sd") && strcmp(argv[i], "nand"))
630                 return -1;
631
632         if (i + 3 != argc)
633                 return -1;
634
635         return i;
636 }
637
638 int main(int argc, char **argv)
639 {
640         int infd, outfd;
641         int ret = 0;
642         int offset;
643
644         offset = parse_ops(argc, argv);
645         if (offset < 0) {
646                 usage();
647                 ret = 1;
648                 goto err1;
649         }
650
651         infd = open(argv[offset + 1], O_RDONLY);
652         if (infd < 0) {
653                 printf("Input BootStream file can not be opened\n");
654                 ret = 2;
655                 goto err1;
656         }
657
658         outfd = open(argv[offset + 2], O_CREAT | O_TRUNC | O_WRONLY,
659                                         S_IRUSR | S_IWUSR);
660         if (outfd < 0) {
661                 printf("Output file can not be created\n");
662                 ret = 3;
663                 goto err2;
664         }
665
666         if (!strcmp(argv[offset], "sd"))
667                 ret = mx28_create_sd_image(infd, outfd);
668         else if (!strcmp(argv[offset], "nand"))
669                 ret = mx28_create_nand_image(infd, outfd);
670
671         close(outfd);
672 err2:
673         close(infd);
674 err1:
675         return ret;
676 }