183d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
20649cd0dSSimon Glass /*
30649cd0dSSimon Glass * (C) Copyright 2000-2010
40649cd0dSSimon Glass * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
50649cd0dSSimon Glass *
60649cd0dSSimon Glass * (C) Copyright 2008
70649cd0dSSimon Glass * Stuart Wood, Lab X Technologies <stuart.wood@labxtechnologies.com>
80649cd0dSSimon Glass *
90649cd0dSSimon Glass * (C) Copyright 2004
100649cd0dSSimon Glass * Jian Zhang, Texas Instruments, jzhang@ti.com.
110649cd0dSSimon Glass *
120649cd0dSSimon Glass * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
130649cd0dSSimon Glass * Andreas Heppel <aheppel@sysgo.de>
140649cd0dSSimon Glass */
150649cd0dSSimon Glass
160649cd0dSSimon Glass #include <common.h>
170649cd0dSSimon Glass #include <command.h>
180649cd0dSSimon Glass #include <environment.h>
190649cd0dSSimon Glass #include <linux/stddef.h>
200649cd0dSSimon Glass #include <malloc.h>
210649cd0dSSimon Glass #include <memalign.h>
220649cd0dSSimon Glass #include <nand.h>
230649cd0dSSimon Glass #include <search.h>
240649cd0dSSimon Glass #include <errno.h>
250649cd0dSSimon Glass
264415f1d1SSimon Glass #if defined(CONFIG_CMD_SAVEENV) && defined(CONFIG_CMD_NAND) && \
274415f1d1SSimon Glass !defined(CONFIG_SPL_BUILD)
280649cd0dSSimon Glass #define CMD_SAVEENV
290649cd0dSSimon Glass #elif defined(CONFIG_ENV_OFFSET_REDUND)
300649cd0dSSimon Glass #error CONFIG_ENV_OFFSET_REDUND must have CONFIG_CMD_SAVEENV & CONFIG_CMD_NAND
310649cd0dSSimon Glass #endif
320649cd0dSSimon Glass
330649cd0dSSimon Glass #if defined(CONFIG_ENV_SIZE_REDUND) && \
340649cd0dSSimon Glass (CONFIG_ENV_SIZE_REDUND != CONFIG_ENV_SIZE)
350649cd0dSSimon Glass #error CONFIG_ENV_SIZE_REDUND should be the same as CONFIG_ENV_SIZE
360649cd0dSSimon Glass #endif
370649cd0dSSimon Glass
380649cd0dSSimon Glass #ifndef CONFIG_ENV_RANGE
390649cd0dSSimon Glass #define CONFIG_ENV_RANGE CONFIG_ENV_SIZE
400649cd0dSSimon Glass #endif
410649cd0dSSimon Glass
420649cd0dSSimon Glass #if defined(ENV_IS_EMBEDDED)
43*b6cba297SRajesh Bhagat static env_t *env_ptr = &environment;
440649cd0dSSimon Glass #elif defined(CONFIG_NAND_ENV_DST)
45*b6cba297SRajesh Bhagat static env_t *env_ptr = (env_t *)CONFIG_NAND_ENV_DST;
460649cd0dSSimon Glass #endif /* ENV_IS_EMBEDDED */
470649cd0dSSimon Glass
480649cd0dSSimon Glass DECLARE_GLOBAL_DATA_PTR;
490649cd0dSSimon Glass
500649cd0dSSimon Glass /*
510649cd0dSSimon Glass * This is called before nand_init() so we can't read NAND to
520649cd0dSSimon Glass * validate env data.
530649cd0dSSimon Glass *
540649cd0dSSimon Glass * Mark it OK for now. env_relocate() in env_common.c will call our
550649cd0dSSimon Glass * relocate function which does the real validation.
560649cd0dSSimon Glass *
570649cd0dSSimon Glass * When using a NAND boot image (like sequoia_nand), the environment
580649cd0dSSimon Glass * can be embedded or attached to the U-Boot image in NAND flash.
590649cd0dSSimon Glass * This way the SPL loads not only the U-Boot image from NAND but
600649cd0dSSimon Glass * also the environment.
610649cd0dSSimon Glass */
env_nand_init(void)62e5bce247SSimon Glass static int env_nand_init(void)
630649cd0dSSimon Glass {
640649cd0dSSimon Glass #if defined(ENV_IS_EMBEDDED) || defined(CONFIG_NAND_ENV_DST)
650649cd0dSSimon Glass int crc1_ok = 0, crc2_ok = 0;
660649cd0dSSimon Glass env_t *tmp_env1;
670649cd0dSSimon Glass
680649cd0dSSimon Glass #ifdef CONFIG_ENV_OFFSET_REDUND
690649cd0dSSimon Glass env_t *tmp_env2;
700649cd0dSSimon Glass
710649cd0dSSimon Glass tmp_env2 = (env_t *)((ulong)env_ptr + CONFIG_ENV_SIZE);
720649cd0dSSimon Glass crc2_ok = crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc;
730649cd0dSSimon Glass #endif
740649cd0dSSimon Glass tmp_env1 = env_ptr;
750649cd0dSSimon Glass crc1_ok = crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc;
760649cd0dSSimon Glass
770649cd0dSSimon Glass if (!crc1_ok && !crc2_ok) {
780649cd0dSSimon Glass gd->env_addr = 0;
792d7cb5b4SSimon Glass gd->env_valid = ENV_INVALID;
800649cd0dSSimon Glass
810649cd0dSSimon Glass return 0;
820649cd0dSSimon Glass } else if (crc1_ok && !crc2_ok) {
83203e94f6SSimon Glass gd->env_valid = ENV_VALID;
840649cd0dSSimon Glass }
850649cd0dSSimon Glass #ifdef CONFIG_ENV_OFFSET_REDUND
860649cd0dSSimon Glass else if (!crc1_ok && crc2_ok) {
87203e94f6SSimon Glass gd->env_valid = ENV_REDUND;
880649cd0dSSimon Glass } else {
890649cd0dSSimon Glass /* both ok - check serial */
900649cd0dSSimon Glass if (tmp_env1->flags == 255 && tmp_env2->flags == 0)
91203e94f6SSimon Glass gd->env_valid = ENV_REDUND;
920649cd0dSSimon Glass else if (tmp_env2->flags == 255 && tmp_env1->flags == 0)
93203e94f6SSimon Glass gd->env_valid = ENV_VALID;
940649cd0dSSimon Glass else if (tmp_env1->flags > tmp_env2->flags)
95203e94f6SSimon Glass gd->env_valid = ENV_VALID;
960649cd0dSSimon Glass else if (tmp_env2->flags > tmp_env1->flags)
97203e94f6SSimon Glass gd->env_valid = ENV_REDUND;
980649cd0dSSimon Glass else /* flags are equal - almost impossible */
99203e94f6SSimon Glass gd->env_valid = ENV_VALID;
1000649cd0dSSimon Glass }
1010649cd0dSSimon Glass
102203e94f6SSimon Glass if (gd->env_valid == ENV_REDUND)
1030649cd0dSSimon Glass env_ptr = tmp_env2;
1040649cd0dSSimon Glass else
1050649cd0dSSimon Glass #endif
106203e94f6SSimon Glass if (gd->env_valid == ENV_VALID)
1070649cd0dSSimon Glass env_ptr = tmp_env1;
1080649cd0dSSimon Glass
1090649cd0dSSimon Glass gd->env_addr = (ulong)env_ptr->data;
1100649cd0dSSimon Glass
1110649cd0dSSimon Glass #else /* ENV_IS_EMBEDDED || CONFIG_NAND_ENV_DST */
1120649cd0dSSimon Glass gd->env_addr = (ulong)&default_environment[0];
113203e94f6SSimon Glass gd->env_valid = ENV_VALID;
1140649cd0dSSimon Glass #endif /* ENV_IS_EMBEDDED || CONFIG_NAND_ENV_DST */
1150649cd0dSSimon Glass
1160649cd0dSSimon Glass return 0;
1170649cd0dSSimon Glass }
1180649cd0dSSimon Glass
1190649cd0dSSimon Glass #ifdef CMD_SAVEENV
1200649cd0dSSimon Glass /*
1210649cd0dSSimon Glass * The legacy NAND code saved the environment in the first NAND device i.e.,
1220649cd0dSSimon Glass * nand_dev_desc + 0. This is also the behaviour using the new NAND code.
1230649cd0dSSimon Glass */
writeenv(size_t offset,u_char * buf)1240649cd0dSSimon Glass static int writeenv(size_t offset, u_char *buf)
1250649cd0dSSimon Glass {
1260649cd0dSSimon Glass size_t end = offset + CONFIG_ENV_RANGE;
1270649cd0dSSimon Glass size_t amount_saved = 0;
1280649cd0dSSimon Glass size_t blocksize, len;
1290649cd0dSSimon Glass struct mtd_info *mtd;
1300649cd0dSSimon Glass u_char *char_ptr;
1310649cd0dSSimon Glass
1320649cd0dSSimon Glass mtd = get_nand_dev_by_index(0);
1330649cd0dSSimon Glass if (!mtd)
1340649cd0dSSimon Glass return 1;
1350649cd0dSSimon Glass
1360649cd0dSSimon Glass blocksize = mtd->erasesize;
1370649cd0dSSimon Glass len = min(blocksize, (size_t)CONFIG_ENV_SIZE);
1380649cd0dSSimon Glass
1390649cd0dSSimon Glass while (amount_saved < CONFIG_ENV_SIZE && offset < end) {
1400649cd0dSSimon Glass if (nand_block_isbad(mtd, offset)) {
1410649cd0dSSimon Glass offset += blocksize;
1420649cd0dSSimon Glass } else {
1430649cd0dSSimon Glass char_ptr = &buf[amount_saved];
1440649cd0dSSimon Glass if (nand_write(mtd, offset, &len, char_ptr))
1450649cd0dSSimon Glass return 1;
1460649cd0dSSimon Glass
1470649cd0dSSimon Glass offset += blocksize;
1480649cd0dSSimon Glass amount_saved += len;
1490649cd0dSSimon Glass }
1500649cd0dSSimon Glass }
1510649cd0dSSimon Glass if (amount_saved != CONFIG_ENV_SIZE)
1520649cd0dSSimon Glass return 1;
1530649cd0dSSimon Glass
1540649cd0dSSimon Glass return 0;
1550649cd0dSSimon Glass }
1560649cd0dSSimon Glass
15742a8180dSSimon Glass struct nand_env_location {
1580649cd0dSSimon Glass const char *name;
1590649cd0dSSimon Glass const nand_erase_options_t erase_opts;
1600649cd0dSSimon Glass };
1610649cd0dSSimon Glass
erase_and_write_env(const struct nand_env_location * location,u_char * env_new)16242a8180dSSimon Glass static int erase_and_write_env(const struct nand_env_location *location,
1630649cd0dSSimon Glass u_char *env_new)
1640649cd0dSSimon Glass {
1650649cd0dSSimon Glass struct mtd_info *mtd;
1660649cd0dSSimon Glass int ret = 0;
1670649cd0dSSimon Glass
1680649cd0dSSimon Glass mtd = get_nand_dev_by_index(0);
1690649cd0dSSimon Glass if (!mtd)
1700649cd0dSSimon Glass return 1;
1710649cd0dSSimon Glass
1720649cd0dSSimon Glass printf("Erasing %s...\n", location->name);
1730649cd0dSSimon Glass if (nand_erase_opts(mtd, &location->erase_opts))
1740649cd0dSSimon Glass return 1;
1750649cd0dSSimon Glass
1760649cd0dSSimon Glass printf("Writing to %s... ", location->name);
1770649cd0dSSimon Glass ret = writeenv(location->erase_opts.offset, env_new);
1780649cd0dSSimon Glass puts(ret ? "FAILED!\n" : "OK\n");
1790649cd0dSSimon Glass
1800649cd0dSSimon Glass return ret;
1810649cd0dSSimon Glass }
1820649cd0dSSimon Glass
env_nand_save(void)183e5bce247SSimon Glass static int env_nand_save(void)
1840649cd0dSSimon Glass {
1850649cd0dSSimon Glass int ret = 0;
1860649cd0dSSimon Glass ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
1870649cd0dSSimon Glass int env_idx = 0;
18842a8180dSSimon Glass static const struct nand_env_location location[] = {
1890649cd0dSSimon Glass {
1900649cd0dSSimon Glass .name = "NAND",
1910649cd0dSSimon Glass .erase_opts = {
1920649cd0dSSimon Glass .length = CONFIG_ENV_RANGE,
1930649cd0dSSimon Glass .offset = CONFIG_ENV_OFFSET,
1940649cd0dSSimon Glass },
1950649cd0dSSimon Glass },
1960649cd0dSSimon Glass #ifdef CONFIG_ENV_OFFSET_REDUND
1970649cd0dSSimon Glass {
1980649cd0dSSimon Glass .name = "redundant NAND",
1990649cd0dSSimon Glass .erase_opts = {
2000649cd0dSSimon Glass .length = CONFIG_ENV_RANGE,
2010649cd0dSSimon Glass .offset = CONFIG_ENV_OFFSET_REDUND,
2020649cd0dSSimon Glass },
2030649cd0dSSimon Glass },
2040649cd0dSSimon Glass #endif
2050649cd0dSSimon Glass };
2060649cd0dSSimon Glass
2070649cd0dSSimon Glass
2080649cd0dSSimon Glass if (CONFIG_ENV_RANGE < CONFIG_ENV_SIZE)
2090649cd0dSSimon Glass return 1;
2100649cd0dSSimon Glass
2110649cd0dSSimon Glass ret = env_export(env_new);
2120649cd0dSSimon Glass if (ret)
2130649cd0dSSimon Glass return ret;
2140649cd0dSSimon Glass
2150649cd0dSSimon Glass #ifdef CONFIG_ENV_OFFSET_REDUND
216203e94f6SSimon Glass env_idx = (gd->env_valid == ENV_VALID);
2170649cd0dSSimon Glass #endif
2180649cd0dSSimon Glass
2190649cd0dSSimon Glass ret = erase_and_write_env(&location[env_idx], (u_char *)env_new);
2200649cd0dSSimon Glass #ifdef CONFIG_ENV_OFFSET_REDUND
2210649cd0dSSimon Glass if (!ret) {
2220649cd0dSSimon Glass /* preset other copy for next write */
223203e94f6SSimon Glass gd->env_valid = gd->env_valid == ENV_REDUND ? ENV_VALID :
224203e94f6SSimon Glass ENV_REDUND;
2250649cd0dSSimon Glass return ret;
2260649cd0dSSimon Glass }
2270649cd0dSSimon Glass
2280649cd0dSSimon Glass env_idx = (env_idx + 1) & 1;
2290649cd0dSSimon Glass ret = erase_and_write_env(&location[env_idx], (u_char *)env_new);
2300649cd0dSSimon Glass if (!ret)
2310649cd0dSSimon Glass printf("Warning: primary env write failed,"
2320649cd0dSSimon Glass " redundancy is lost!\n");
2330649cd0dSSimon Glass #endif
2340649cd0dSSimon Glass
2350649cd0dSSimon Glass return ret;
2360649cd0dSSimon Glass }
2370649cd0dSSimon Glass #endif /* CMD_SAVEENV */
2380649cd0dSSimon Glass
2390649cd0dSSimon Glass #if defined(CONFIG_SPL_BUILD)
readenv(size_t offset,u_char * buf)2400649cd0dSSimon Glass static int readenv(size_t offset, u_char *buf)
2410649cd0dSSimon Glass {
2420649cd0dSSimon Glass return nand_spl_load_image(offset, CONFIG_ENV_SIZE, buf);
2430649cd0dSSimon Glass }
2440649cd0dSSimon Glass #else
readenv(size_t offset,u_char * buf)2450649cd0dSSimon Glass static int readenv(size_t offset, u_char *buf)
2460649cd0dSSimon Glass {
2470649cd0dSSimon Glass size_t end = offset + CONFIG_ENV_RANGE;
2480649cd0dSSimon Glass size_t amount_loaded = 0;
2490649cd0dSSimon Glass size_t blocksize, len;
2500649cd0dSSimon Glass struct mtd_info *mtd;
2510649cd0dSSimon Glass u_char *char_ptr;
2520649cd0dSSimon Glass
2530649cd0dSSimon Glass mtd = get_nand_dev_by_index(0);
2540649cd0dSSimon Glass if (!mtd)
2550649cd0dSSimon Glass return 1;
2560649cd0dSSimon Glass
2570649cd0dSSimon Glass blocksize = mtd->erasesize;
2580649cd0dSSimon Glass len = min(blocksize, (size_t)CONFIG_ENV_SIZE);
2590649cd0dSSimon Glass
2600649cd0dSSimon Glass while (amount_loaded < CONFIG_ENV_SIZE && offset < end) {
2610649cd0dSSimon Glass if (nand_block_isbad(mtd, offset)) {
2620649cd0dSSimon Glass offset += blocksize;
2630649cd0dSSimon Glass } else {
2640649cd0dSSimon Glass char_ptr = &buf[amount_loaded];
2650649cd0dSSimon Glass if (nand_read_skip_bad(mtd, offset,
2660649cd0dSSimon Glass &len, NULL,
2670649cd0dSSimon Glass mtd->size, char_ptr))
2680649cd0dSSimon Glass return 1;
2690649cd0dSSimon Glass
2700649cd0dSSimon Glass offset += blocksize;
2710649cd0dSSimon Glass amount_loaded += len;
2720649cd0dSSimon Glass }
2730649cd0dSSimon Glass }
2740649cd0dSSimon Glass
2750649cd0dSSimon Glass if (amount_loaded != CONFIG_ENV_SIZE)
2760649cd0dSSimon Glass return 1;
2770649cd0dSSimon Glass
2780649cd0dSSimon Glass return 0;
2790649cd0dSSimon Glass }
2800649cd0dSSimon Glass #endif /* #if defined(CONFIG_SPL_BUILD) */
2810649cd0dSSimon Glass
2820649cd0dSSimon Glass #ifdef CONFIG_ENV_OFFSET_OOB
get_nand_env_oob(struct mtd_info * mtd,unsigned long * result)2830649cd0dSSimon Glass int get_nand_env_oob(struct mtd_info *mtd, unsigned long *result)
2840649cd0dSSimon Glass {
2850649cd0dSSimon Glass struct mtd_oob_ops ops;
2860649cd0dSSimon Glass uint32_t oob_buf[ENV_OFFSET_SIZE / sizeof(uint32_t)];
2870649cd0dSSimon Glass int ret;
2880649cd0dSSimon Glass
2890649cd0dSSimon Glass ops.datbuf = NULL;
2900649cd0dSSimon Glass ops.mode = MTD_OOB_AUTO;
2910649cd0dSSimon Glass ops.ooboffs = 0;
2920649cd0dSSimon Glass ops.ooblen = ENV_OFFSET_SIZE;
2930649cd0dSSimon Glass ops.oobbuf = (void *)oob_buf;
2940649cd0dSSimon Glass
2950649cd0dSSimon Glass ret = mtd->read_oob(mtd, ENV_OFFSET_SIZE, &ops);
2960649cd0dSSimon Glass if (ret) {
2970649cd0dSSimon Glass printf("error reading OOB block 0\n");
2980649cd0dSSimon Glass return ret;
2990649cd0dSSimon Glass }
3000649cd0dSSimon Glass
3010649cd0dSSimon Glass if (oob_buf[0] == ENV_OOB_MARKER) {
302c5951991SSimon Glass *result = ovoid ob_buf[1] * mtd->erasesize;
3030649cd0dSSimon Glass } else if (oob_buf[0] == ENV_OOB_MARKER_OLD) {
3040649cd0dSSimon Glass *result = oob_buf[1];
3050649cd0dSSimon Glass } else {
3060649cd0dSSimon Glass printf("No dynamic environment marker in OOB block 0\n");
3070649cd0dSSimon Glass return -ENOENT;
3080649cd0dSSimon Glass }
3090649cd0dSSimon Glass
3100649cd0dSSimon Glass return 0;
3110649cd0dSSimon Glass }
3120649cd0dSSimon Glass #endif
3130649cd0dSSimon Glass
3140649cd0dSSimon Glass #ifdef CONFIG_ENV_OFFSET_REDUND
env_nand_load(void)315c5951991SSimon Glass static int env_nand_load(void)
3160649cd0dSSimon Glass {
317c5951991SSimon Glass #if defined(ENV_IS_EMBEDDED)
318c5951991SSimon Glass return 0;
319c5951991SSimon Glass #else
32031f044bdSSimon Goldschmidt int read1_fail, read2_fail;
3210649cd0dSSimon Glass env_t *tmp_env1, *tmp_env2;
322c5951991SSimon Glass int ret = 0;
3230649cd0dSSimon Glass
3240649cd0dSSimon Glass tmp_env1 = (env_t *)malloc(CONFIG_ENV_SIZE);
3250649cd0dSSimon Glass tmp_env2 = (env_t *)malloc(CONFIG_ENV_SIZE);
3260649cd0dSSimon Glass if (tmp_env1 == NULL || tmp_env2 == NULL) {
3270649cd0dSSimon Glass puts("Can't allocate buffers for environment\n");
328c5d548a9SYaniv Levinsky set_default_env("malloc() failed", 0);
329c5951991SSimon Glass ret = -EIO;
3300649cd0dSSimon Glass goto done;
3310649cd0dSSimon Glass }
3320649cd0dSSimon Glass
3330649cd0dSSimon Glass read1_fail = readenv(CONFIG_ENV_OFFSET, (u_char *) tmp_env1);
3340649cd0dSSimon Glass read2_fail = readenv(CONFIG_ENV_OFFSET_REDUND, (u_char *) tmp_env2);
3350649cd0dSSimon Glass
33631f044bdSSimon Goldschmidt ret = env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
33731f044bdSSimon Goldschmidt read2_fail);
3380649cd0dSSimon Glass
3390649cd0dSSimon Glass done:
3400649cd0dSSimon Glass free(tmp_env1);
3410649cd0dSSimon Glass free(tmp_env2);
3420649cd0dSSimon Glass
343c5951991SSimon Glass return ret;
3440649cd0dSSimon Glass #endif /* ! ENV_IS_EMBEDDED */
3450649cd0dSSimon Glass }
3460649cd0dSSimon Glass #else /* ! CONFIG_ENV_OFFSET_REDUND */
3470649cd0dSSimon Glass /*
3480649cd0dSSimon Glass * The legacy NAND code saved the environment in the first NAND
3490649cd0dSSimon Glass * device i.e., nand_dev_desc + 0. This is also the behaviour using
3500649cd0dSSimon Glass * the new NAND code.
3510649cd0dSSimon Glass */
env_nand_load(void)352c5951991SSimon Glass static int env_nand_load(void)
3530649cd0dSSimon Glass {
3540649cd0dSSimon Glass #if !defined(ENV_IS_EMBEDDED)
3550649cd0dSSimon Glass int ret;
3560649cd0dSSimon Glass ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
3570649cd0dSSimon Glass
3580649cd0dSSimon Glass #if defined(CONFIG_ENV_OFFSET_OOB)
3590649cd0dSSimon Glass struct mtd_info *mtd = get_nand_dev_by_index(0);
3600649cd0dSSimon Glass /*
3610649cd0dSSimon Glass * If unable to read environment offset from NAND OOB then fall through
3620649cd0dSSimon Glass * to the normal environment reading code below
3630649cd0dSSimon Glass */
3640649cd0dSSimon Glass if (mtd && !get_nand_env_oob(mtd, &nand_env_oob_offset)) {
3650649cd0dSSimon Glass printf("Found Environment offset in OOB..\n");
3660649cd0dSSimon Glass } else {
367c5d548a9SYaniv Levinsky set_default_env("no env offset in OOB", 0);
3680649cd0dSSimon Glass return;
3690649cd0dSSimon Glass }
3700649cd0dSSimon Glass #endif
3710649cd0dSSimon Glass
3720649cd0dSSimon Glass ret = readenv(CONFIG_ENV_OFFSET, (u_char *)buf);
3730649cd0dSSimon Glass if (ret) {
374c5d548a9SYaniv Levinsky set_default_env("readenv() failed", 0);
375c5951991SSimon Glass return -EIO;
3760649cd0dSSimon Glass }
3770649cd0dSSimon Glass
3782166ebf7SSimon Goldschmidt return env_import(buf, 1);
3790649cd0dSSimon Glass #endif /* ! ENV_IS_EMBEDDED */
380c5951991SSimon Glass
381c5951991SSimon Glass return 0;
3820649cd0dSSimon Glass }
3830649cd0dSSimon Glass #endif /* CONFIG_ENV_OFFSET_REDUND */
3844415f1d1SSimon Glass
3854415f1d1SSimon Glass U_BOOT_ENV_LOCATION(nand) = {
3864415f1d1SSimon Glass .location = ENVL_NAND,
387ac358bebSSimon Glass ENV_NAME("NAND")
388e5bce247SSimon Glass .load = env_nand_load,
3894415f1d1SSimon Glass #if defined(CMD_SAVEENV)
390e5bce247SSimon Glass .save = env_save_ptr(env_nand_save),
3914415f1d1SSimon Glass #endif
392e5bce247SSimon Glass .init = env_nand_init,
3934415f1d1SSimon Glass };
394