blob: 6d48cfb3e43473caa4c88d5271e60676f207ca70 [file] [log] [blame]
Marek Vasutf29f7e02011-11-08 23:18:18 +00001/*
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 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02007 * SPDX-License-Identifier: GPL-2.0+
Marek Vasutf29f7e02011-11-08 23:18:18 +00008 */
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/*
18 * Default BCB layout.
19 *
20 * TWEAK this if you have blown any OCOTP fuses.
21 */
22#define STRIDE_PAGES 64
23#define STRIDE_COUNT 4
24
25/*
26 * Layout for 256Mb big NAND with 2048b page size, 64b OOB size and
27 * 128kb erase size.
28 *
29 * TWEAK this if you have different kind of NAND chip.
30 */
Marek Vasut62d40d12013-08-27 23:32:37 +020031static uint32_t nand_writesize = 2048;
32static uint32_t nand_oobsize = 64;
33static uint32_t nand_erasesize = 128 * 1024;
Marek Vasutf29f7e02011-11-08 23:18:18 +000034
35/*
36 * Sector on which the SigmaTel boot partition (0x53) starts.
37 */
Marek Vasut62d40d12013-08-27 23:32:37 +020038static uint32_t sd_sector = 2048;
Marek Vasutf29f7e02011-11-08 23:18:18 +000039
40/*
41 * Each of the U-Boot bootstreams is at maximum 1MB big.
42 *
43 * TWEAK this if, for some wild reason, you need to boot bigger image.
44 */
45#define MAX_BOOTSTREAM_SIZE (1 * 1024 * 1024)
46
47/* i.MX28 NAND controller-specific constants. DO NOT TWEAK! */
48#define MXS_NAND_DMA_DESCRIPTOR_COUNT 4
49#define MXS_NAND_CHUNK_DATA_CHUNK_SIZE 512
50#define MXS_NAND_METADATA_SIZE 10
51#define MXS_NAND_COMMAND_BUFFER_SIZE 32
52
53struct mx28_nand_fcb {
54 uint32_t checksum;
55 uint32_t fingerprint;
56 uint32_t version;
57 struct {
58 uint8_t data_setup;
59 uint8_t data_hold;
60 uint8_t address_setup;
61 uint8_t dsample_time;
62 uint8_t nand_timing_state;
63 uint8_t rea;
64 uint8_t rloh;
65 uint8_t rhoh;
66 } timing;
67 uint32_t page_data_size;
68 uint32_t total_page_size;
69 uint32_t sectors_per_block;
70 uint32_t number_of_nands; /* Ignored */
71 uint32_t total_internal_die; /* Ignored */
72 uint32_t cell_type; /* Ignored */
73 uint32_t ecc_block_n_ecc_type;
74 uint32_t ecc_block_0_size;
75 uint32_t ecc_block_n_size;
76 uint32_t ecc_block_0_ecc_type;
77 uint32_t metadata_bytes;
78 uint32_t num_ecc_blocks_per_page;
79 uint32_t ecc_block_n_ecc_level_sdk; /* Ignored */
80 uint32_t ecc_block_0_size_sdk; /* Ignored */
81 uint32_t ecc_block_n_size_sdk; /* Ignored */
82 uint32_t ecc_block_0_ecc_level_sdk; /* Ignored */
83 uint32_t num_ecc_blocks_per_page_sdk; /* Ignored */
84 uint32_t metadata_bytes_sdk; /* Ignored */
85 uint32_t erase_threshold;
86 uint32_t boot_patch;
87 uint32_t patch_sectors;
88 uint32_t firmware1_starting_sector;
89 uint32_t firmware2_starting_sector;
90 uint32_t sectors_in_firmware1;
91 uint32_t sectors_in_firmware2;
92 uint32_t dbbt_search_area_start_address;
93 uint32_t badblock_marker_byte;
94 uint32_t badblock_marker_start_bit;
95 uint32_t bb_marker_physical_offset;
96};
97
98struct mx28_nand_dbbt {
99 uint32_t checksum;
100 uint32_t fingerprint;
101 uint32_t version;
102 uint32_t number_bb;
103 uint32_t number_2k_pages_bb;
104};
105
106struct mx28_nand_bbt {
107 uint32_t nand;
108 uint32_t number_bb;
109 uint32_t badblock[510];
110};
111
112struct mx28_sd_drive_info {
113 uint32_t chip_num;
114 uint32_t drive_type;
115 uint32_t tag;
116 uint32_t first_sector_number;
117 uint32_t sector_count;
118};
119
120struct mx28_sd_config_block {
121 uint32_t signature;
122 uint32_t primary_boot_tag;
123 uint32_t secondary_boot_tag;
124 uint32_t num_copies;
125 struct mx28_sd_drive_info drv_info[1];
126};
127
128static inline uint32_t mx28_nand_ecc_size_in_bits(uint32_t ecc_strength)
129{
130 return ecc_strength * 13;
131}
132
133static inline uint32_t mx28_nand_get_ecc_strength(uint32_t page_data_size,
134 uint32_t page_oob_size)
135{
136 if (page_data_size == 2048)
137 return 8;
138
139 if (page_data_size == 4096) {
140 if (page_oob_size == 128)
141 return 8;
142
143 if (page_oob_size == 218)
144 return 16;
Alexandre Coffignalca6dc4f2015-01-08 17:14:42 +0100145
146 if (page_oob_size == 224)
147 return 16;
Marek Vasutf29f7e02011-11-08 23:18:18 +0000148 }
149
150 return 0;
151}
152
153static inline uint32_t mx28_nand_get_mark_offset(uint32_t page_data_size,
154 uint32_t ecc_strength)
155{
156 uint32_t chunk_data_size_in_bits;
157 uint32_t chunk_ecc_size_in_bits;
158 uint32_t chunk_total_size_in_bits;
159 uint32_t block_mark_chunk_number;
160 uint32_t block_mark_chunk_bit_offset;
161 uint32_t block_mark_bit_offset;
162
163 chunk_data_size_in_bits = MXS_NAND_CHUNK_DATA_CHUNK_SIZE * 8;
164 chunk_ecc_size_in_bits = mx28_nand_ecc_size_in_bits(ecc_strength);
165
166 chunk_total_size_in_bits =
167 chunk_data_size_in_bits + chunk_ecc_size_in_bits;
168
169 /* Compute the bit offset of the block mark within the physical page. */
170 block_mark_bit_offset = page_data_size * 8;
171
172 /* Subtract the metadata bits. */
173 block_mark_bit_offset -= MXS_NAND_METADATA_SIZE * 8;
174
175 /*
176 * Compute the chunk number (starting at zero) in which the block mark
177 * appears.
178 */
179 block_mark_chunk_number =
180 block_mark_bit_offset / chunk_total_size_in_bits;
181
182 /*
183 * Compute the bit offset of the block mark within its chunk, and
184 * validate it.
185 */
186 block_mark_chunk_bit_offset = block_mark_bit_offset -
187 (block_mark_chunk_number * chunk_total_size_in_bits);
188
189 if (block_mark_chunk_bit_offset > chunk_data_size_in_bits)
190 return 1;
191
192 /*
193 * Now that we know the chunk number in which the block mark appears,
194 * we can subtract all the ECC bits that appear before it.
195 */
196 block_mark_bit_offset -=
197 block_mark_chunk_number * chunk_ecc_size_in_bits;
198
199 return block_mark_bit_offset;
200}
201
202static inline uint32_t mx28_nand_mark_byte_offset(void)
203{
204 uint32_t ecc_strength;
205 ecc_strength = mx28_nand_get_ecc_strength(nand_writesize, nand_oobsize);
206 return mx28_nand_get_mark_offset(nand_writesize, ecc_strength) >> 3;
207}
208
209static inline uint32_t mx28_nand_mark_bit_offset(void)
210{
211 uint32_t ecc_strength;
212 ecc_strength = mx28_nand_get_ecc_strength(nand_writesize, nand_oobsize);
213 return mx28_nand_get_mark_offset(nand_writesize, ecc_strength) & 0x7;
214}
215
216static uint32_t mx28_nand_block_csum(uint8_t *block, uint32_t size)
217{
218 uint32_t csum = 0;
219 int i;
220
221 for (i = 0; i < size; i++)
222 csum += block[i];
223
224 return csum ^ 0xffffffff;
225}
226
227static struct mx28_nand_fcb *mx28_nand_get_fcb(uint32_t size)
228{
229 struct mx28_nand_fcb *fcb;
230 uint32_t bcb_size_bytes;
231 uint32_t stride_size_bytes;
232 uint32_t bootstream_size_pages;
233 uint32_t fw1_start_page;
234 uint32_t fw2_start_page;
235
236 fcb = malloc(nand_writesize);
237 if (!fcb) {
238 printf("MX28 NAND: Unable to allocate FCB\n");
239 return NULL;
240 }
241
242 memset(fcb, 0, nand_writesize);
243
244 fcb->fingerprint = 0x20424346;
245 fcb->version = 0x01000000;
246
247 /*
248 * FIXME: These here are default values as found in kobs-ng. We should
249 * probably retrieve the data from NAND or something.
250 */
251 fcb->timing.data_setup = 80;
252 fcb->timing.data_hold = 60;
253 fcb->timing.address_setup = 25;
254 fcb->timing.dsample_time = 6;
255
256 fcb->page_data_size = nand_writesize;
257 fcb->total_page_size = nand_writesize + nand_oobsize;
258 fcb->sectors_per_block = nand_erasesize / nand_writesize;
259
260 fcb->num_ecc_blocks_per_page = (nand_writesize / 512) - 1;
261 fcb->ecc_block_0_size = 512;
262 fcb->ecc_block_n_size = 512;
263 fcb->metadata_bytes = 10;
264
265 if (nand_writesize == 2048) {
266 fcb->ecc_block_n_ecc_type = 4;
267 fcb->ecc_block_0_ecc_type = 4;
268 } else if (nand_writesize == 4096) {
269 if (nand_oobsize == 128) {
270 fcb->ecc_block_n_ecc_type = 4;
271 fcb->ecc_block_0_ecc_type = 4;
272 } else if (nand_oobsize == 218) {
273 fcb->ecc_block_n_ecc_type = 8;
274 fcb->ecc_block_0_ecc_type = 8;
Alexandre Coffignalca6dc4f2015-01-08 17:14:42 +0100275 } else if (nand_oobsize == 224) {
276 fcb->ecc_block_n_ecc_type = 8;
277 fcb->ecc_block_0_ecc_type = 8;
Marek Vasutf29f7e02011-11-08 23:18:18 +0000278 }
279 }
280
281 if (fcb->ecc_block_n_ecc_type == 0) {
282 printf("MX28 NAND: Unsupported NAND geometry\n");
283 goto err;
284 }
285
286 fcb->boot_patch = 0;
287 fcb->patch_sectors = 0;
288
289 fcb->badblock_marker_byte = mx28_nand_mark_byte_offset();
290 fcb->badblock_marker_start_bit = mx28_nand_mark_bit_offset();
291 fcb->bb_marker_physical_offset = nand_writesize;
292
293 stride_size_bytes = STRIDE_PAGES * nand_writesize;
294 bcb_size_bytes = stride_size_bytes * STRIDE_COUNT;
295
296 bootstream_size_pages = (size + (nand_writesize - 1)) /
297 nand_writesize;
298
299 fw1_start_page = 2 * bcb_size_bytes / nand_writesize;
300 fw2_start_page = (2 * bcb_size_bytes + MAX_BOOTSTREAM_SIZE) /
301 nand_writesize;
302
303 fcb->firmware1_starting_sector = fw1_start_page;
304 fcb->firmware2_starting_sector = fw2_start_page;
305 fcb->sectors_in_firmware1 = bootstream_size_pages;
306 fcb->sectors_in_firmware2 = bootstream_size_pages;
307
308 fcb->dbbt_search_area_start_address = STRIDE_PAGES * STRIDE_COUNT;
309
310 return fcb;
311
312err:
313 free(fcb);
314 return NULL;
315}
316
317static struct mx28_nand_dbbt *mx28_nand_get_dbbt(void)
318{
319 struct mx28_nand_dbbt *dbbt;
320
321 dbbt = malloc(nand_writesize);
322 if (!dbbt) {
323 printf("MX28 NAND: Unable to allocate DBBT\n");
324 return NULL;
325 }
326
327 memset(dbbt, 0, nand_writesize);
328
329 dbbt->fingerprint = 0x54424244;
330 dbbt->version = 0x1;
331
332 return dbbt;
333}
334
335static inline uint8_t mx28_nand_parity_13_8(const uint8_t b)
336{
337 uint32_t parity = 0, tmp;
338
339 tmp = ((b >> 6) ^ (b >> 5) ^ (b >> 3) ^ (b >> 2)) & 1;
340 parity |= tmp << 0;
341
342 tmp = ((b >> 7) ^ (b >> 5) ^ (b >> 4) ^ (b >> 2) ^ (b >> 1)) & 1;
343 parity |= tmp << 1;
344
345 tmp = ((b >> 7) ^ (b >> 6) ^ (b >> 5) ^ (b >> 1) ^ (b >> 0)) & 1;
346 parity |= tmp << 2;
347
348 tmp = ((b >> 7) ^ (b >> 4) ^ (b >> 3) ^ (b >> 0)) & 1;
349 parity |= tmp << 3;
350
351 tmp = ((b >> 6) ^ (b >> 4) ^ (b >> 3) ^
352 (b >> 2) ^ (b >> 1) ^ (b >> 0)) & 1;
353 parity |= tmp << 4;
354
355 return parity;
356}
357
358static uint8_t *mx28_nand_fcb_block(struct mx28_nand_fcb *fcb)
359{
360 uint8_t *block;
361 uint8_t *ecc;
362 int i;
363
364 block = malloc(nand_writesize + nand_oobsize);
365 if (!block) {
366 printf("MX28 NAND: Unable to allocate FCB block\n");
367 return NULL;
368 }
369
370 memset(block, 0, nand_writesize + nand_oobsize);
371
372 /* Update the FCB checksum */
373 fcb->checksum = mx28_nand_block_csum(((uint8_t *)fcb) + 4, 508);
374
375 /* Figure 12-11. in iMX28RM, rev. 1, says FCB is at offset 12 */
376 memcpy(block + 12, fcb, sizeof(struct mx28_nand_fcb));
377
378 /* ECC is at offset 12 + 512 */
379 ecc = block + 12 + 512;
380
381 /* Compute the ECC parity */
382 for (i = 0; i < sizeof(struct mx28_nand_fcb); i++)
383 ecc[i] = mx28_nand_parity_13_8(block[i + 12]);
384
385 return block;
386}
387
Marek Vasut93d520f2013-08-27 23:32:38 +0200388static int mx28_nand_write_fcb(struct mx28_nand_fcb *fcb, uint8_t *buf)
Marek Vasutf29f7e02011-11-08 23:18:18 +0000389{
390 uint32_t offset;
391 uint8_t *fcbblock;
392 int ret = 0;
393 int i;
394
395 fcbblock = mx28_nand_fcb_block(fcb);
396 if (!fcbblock)
397 return -1;
398
399 for (i = 0; i < STRIDE_PAGES * STRIDE_COUNT; i += STRIDE_PAGES) {
400 offset = i * nand_writesize;
401 memcpy(buf + offset, fcbblock, nand_writesize + nand_oobsize);
Marek Vasut93d520f2013-08-27 23:32:38 +0200402 /* Mark the NAND page is OK. */
403 buf[offset + nand_writesize] = 0xff;
Marek Vasutf29f7e02011-11-08 23:18:18 +0000404 }
405
406 free(fcbblock);
407 return ret;
408}
409
Marek Vasut93d520f2013-08-27 23:32:38 +0200410static int mx28_nand_write_dbbt(struct mx28_nand_dbbt *dbbt, uint8_t *buf)
Marek Vasutf29f7e02011-11-08 23:18:18 +0000411{
412 uint32_t offset;
413 int i = STRIDE_PAGES * STRIDE_COUNT;
414
415 for (; i < 2 * STRIDE_PAGES * STRIDE_COUNT; i += STRIDE_PAGES) {
416 offset = i * nand_writesize;
417 memcpy(buf + offset, dbbt, sizeof(struct mx28_nand_dbbt));
418 }
419
420 return 0;
421}
422
423static int mx28_nand_write_firmware(struct mx28_nand_fcb *fcb, int infd,
Marek Vasut93d520f2013-08-27 23:32:38 +0200424 uint8_t *buf)
Marek Vasutf29f7e02011-11-08 23:18:18 +0000425{
426 int ret;
427 off_t size;
428 uint32_t offset1, offset2;
429
430 size = lseek(infd, 0, SEEK_END);
431 lseek(infd, 0, SEEK_SET);
432
433 offset1 = fcb->firmware1_starting_sector * nand_writesize;
434 offset2 = fcb->firmware2_starting_sector * nand_writesize;
435
436 ret = read(infd, buf + offset1, size);
437 if (ret != size)
438 return -1;
439
440 memcpy(buf + offset2, buf + offset1, size);
441
442 return 0;
443}
444
Marek Vasut62d40d12013-08-27 23:32:37 +0200445static void usage(void)
Marek Vasutf29f7e02011-11-08 23:18:18 +0000446{
447 printf(
Otavio Salvador993d30d2012-03-17 09:16:50 +0000448 "Usage: mxsboot [ops] <type> <infile> <outfile>\n"
Marek Vasutf29f7e02011-11-08 23:18:18 +0000449 "Augment BootStream file with a proper header for i.MX28 boot\n"
450 "\n"
451 " <type> type of image:\n"
452 " \"nand\" for NAND image\n"
453 " \"sd\" for SD image\n"
454 " <infile> input file, the u-boot.sb bootstream\n"
455 " <outfile> output file, the bootable image\n"
456 "\n");
457 printf(
458 "For NAND boot, these options are accepted:\n"
459 " -w <size> NAND page size\n"
460 " -o <size> NAND OOB size\n"
461 " -e <size> NAND erase size\n"
462 "\n"
463 "For SD boot, these options are accepted:\n"
464 " -p <sector> Sector where the SGTL partition starts\n"
465 );
466}
467
468static int mx28_create_nand_image(int infd, int outfd)
469{
470 struct mx28_nand_fcb *fcb;
471 struct mx28_nand_dbbt *dbbt;
472 int ret = -1;
Marek Vasut93d520f2013-08-27 23:32:38 +0200473 uint8_t *buf;
Marek Vasutf29f7e02011-11-08 23:18:18 +0000474 int size;
475 ssize_t wr_size;
476
477 size = nand_writesize * 512 + 2 * MAX_BOOTSTREAM_SIZE;
478
479 buf = malloc(size);
480 if (!buf) {
481 printf("Can not allocate output buffer of %d bytes\n", size);
482 goto err0;
483 }
484
485 memset(buf, 0, size);
486
487 fcb = mx28_nand_get_fcb(MAX_BOOTSTREAM_SIZE);
488 if (!fcb) {
489 printf("Unable to compile FCB\n");
490 goto err1;
491 }
492
493 dbbt = mx28_nand_get_dbbt();
494 if (!dbbt) {
495 printf("Unable to compile DBBT\n");
496 goto err2;
497 }
498
499 ret = mx28_nand_write_fcb(fcb, buf);
500 if (ret) {
501 printf("Unable to write FCB to buffer\n");
502 goto err3;
503 }
504
505 ret = mx28_nand_write_dbbt(dbbt, buf);
506 if (ret) {
507 printf("Unable to write DBBT to buffer\n");
508 goto err3;
509 }
510
511 ret = mx28_nand_write_firmware(fcb, infd, buf);
512 if (ret) {
513 printf("Unable to write firmware to buffer\n");
514 goto err3;
515 }
516
517 wr_size = write(outfd, buf, size);
518 if (wr_size != size) {
519 ret = -1;
520 goto err3;
521 }
522
523 ret = 0;
524
525err3:
526 free(dbbt);
527err2:
528 free(fcb);
529err1:
530 free(buf);
531err0:
532 return ret;
533}
534
535static int mx28_create_sd_image(int infd, int outfd)
536{
537 int ret = -1;
538 uint32_t *buf;
539 int size;
540 off_t fsize;
541 ssize_t wr_size;
542 struct mx28_sd_config_block *cb;
543
544 fsize = lseek(infd, 0, SEEK_END);
545 lseek(infd, 0, SEEK_SET);
Otavio Salvador8de16792013-04-24 11:23:27 +0000546 size = fsize + 4 * 512;
Marek Vasutf29f7e02011-11-08 23:18:18 +0000547
548 buf = malloc(size);
549 if (!buf) {
550 printf("Can not allocate output buffer of %d bytes\n", size);
551 goto err0;
552 }
553
Otavio Salvador8de16792013-04-24 11:23:27 +0000554 ret = read(infd, (uint8_t *)buf + 4 * 512, fsize);
Marek Vasutf29f7e02011-11-08 23:18:18 +0000555 if (ret != fsize) {
556 ret = -1;
557 goto err1;
558 }
559
560 cb = (struct mx28_sd_config_block *)buf;
561
562 cb->signature = 0x00112233;
563 cb->primary_boot_tag = 0x1;
564 cb->secondary_boot_tag = 0x1;
565 cb->num_copies = 1;
566 cb->drv_info[0].chip_num = 0x0;
567 cb->drv_info[0].drive_type = 0x0;
568 cb->drv_info[0].tag = 0x1;
Otavio Salvador8de16792013-04-24 11:23:27 +0000569 cb->drv_info[0].first_sector_number = sd_sector + 4;
570 cb->drv_info[0].sector_count = (size - 4) / 512;
Marek Vasutf29f7e02011-11-08 23:18:18 +0000571
572 wr_size = write(outfd, buf, size);
573 if (wr_size != size) {
574 ret = -1;
575 goto err1;
576 }
577
578 ret = 0;
579
580err1:
581 free(buf);
582err0:
583 return ret;
584}
585
Marek Vasut62d40d12013-08-27 23:32:37 +0200586static int parse_ops(int argc, char **argv)
Marek Vasutf29f7e02011-11-08 23:18:18 +0000587{
588 int i;
589 int tmp;
590 char *end;
591 enum param {
592 PARAM_WRITE,
593 PARAM_OOB,
594 PARAM_ERASE,
595 PARAM_PART,
596 PARAM_SD,
597 PARAM_NAND
598 };
599 int type;
600
Marek Vasute364daf2011-12-22 09:55:08 +0000601 if (argc < 4)
602 return -1;
603
Marek Vasutf29f7e02011-11-08 23:18:18 +0000604 for (i = 1; i < argc; i++) {
605 if (!strncmp(argv[i], "-w", 2))
606 type = PARAM_WRITE;
607 else if (!strncmp(argv[i], "-o", 2))
608 type = PARAM_OOB;
609 else if (!strncmp(argv[i], "-e", 2))
610 type = PARAM_ERASE;
611 else if (!strncmp(argv[i], "-p", 2))
612 type = PARAM_PART;
613 else /* SD/MMC */
614 break;
615
616 tmp = strtol(argv[++i], &end, 10);
617 if (tmp % 2)
618 return -1;
619 if (tmp <= 0)
620 return -1;
621
622 if (type == PARAM_WRITE)
623 nand_writesize = tmp;
624 if (type == PARAM_OOB)
625 nand_oobsize = tmp;
626 if (type == PARAM_ERASE)
627 nand_erasesize = tmp;
628 if (type == PARAM_PART)
629 sd_sector = tmp;
630 }
631
632 if (strcmp(argv[i], "sd") && strcmp(argv[i], "nand"))
633 return -1;
634
635 if (i + 3 != argc)
636 return -1;
637
638 return i;
639}
640
641int main(int argc, char **argv)
642{
643 int infd, outfd;
644 int ret = 0;
645 int offset;
646
647 offset = parse_ops(argc, argv);
648 if (offset < 0) {
649 usage();
650 ret = 1;
651 goto err1;
652 }
653
654 infd = open(argv[offset + 1], O_RDONLY);
655 if (infd < 0) {
656 printf("Input BootStream file can not be opened\n");
657 ret = 2;
658 goto err1;
659 }
660
661 outfd = open(argv[offset + 2], O_CREAT | O_TRUNC | O_WRONLY,
662 S_IRUSR | S_IWUSR);
663 if (outfd < 0) {
664 printf("Output file can not be created\n");
665 ret = 3;
666 goto err2;
667 }
668
669 if (!strcmp(argv[offset], "sd"))
670 ret = mx28_create_sd_image(infd, outfd);
671 else if (!strcmp(argv[offset], "nand"))
672 ret = mx28_create_nand_image(infd, outfd);
673
674 close(outfd);
675err2:
676 close(infd);
677err1:
678 return ret;
679}