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![Fiach Antaw](/assets/img/avatar_default.png)
The env_nand, env_mmc and env_ubi implementations all implement redundancy using an identical serial-number scheme. This commit migrates them to use the implementation in env_common, which is functionally identical. Signed-off-by: Fiach Antaw <fiach.antaw@uqconnect.edu.au> Reviewed-by: Tom Rini <trini@konsulko.com>
180 lines
4.3 KiB
C
180 lines
4.3 KiB
C
/*
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* (c) Copyright 2012 by National Instruments,
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* Joe Hershberger <joe.hershberger@ni.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <command.h>
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#include <environment.h>
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#include <errno.h>
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#include <malloc.h>
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#include <memalign.h>
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#include <search.h>
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#include <ubi_uboot.h>
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#undef crc32
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char *env_name_spec = "UBI";
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env_t *env_ptr;
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DECLARE_GLOBAL_DATA_PTR;
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int env_init(void)
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{
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/* use default */
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gd->env_addr = (ulong)&default_environment[0];
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gd->env_valid = 1;
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return 0;
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}
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#ifdef CONFIG_CMD_SAVEENV
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#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
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int saveenv(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
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int ret;
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ret = env_export(env_new);
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if (ret)
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return ret;
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if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) {
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printf("\n** Cannot find mtd partition \"%s\"\n",
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CONFIG_ENV_UBI_PART);
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return 1;
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}
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if (gd->env_valid == 1) {
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puts("Writing to redundant UBI... ");
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if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME_REDUND,
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(void *)env_new, CONFIG_ENV_SIZE)) {
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printf("\n** Unable to write env to %s:%s **\n",
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CONFIG_ENV_UBI_PART,
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CONFIG_ENV_UBI_VOLUME_REDUND);
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return 1;
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}
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} else {
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puts("Writing to UBI... ");
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if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME,
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(void *)env_new, CONFIG_ENV_SIZE)) {
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printf("\n** Unable to write env to %s:%s **\n",
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CONFIG_ENV_UBI_PART,
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CONFIG_ENV_UBI_VOLUME);
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return 1;
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}
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}
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puts("done\n");
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gd->env_valid = gd->env_valid == 2 ? 1 : 2;
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return 0;
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}
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#else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */
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int saveenv(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
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int ret;
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ret = env_export(env_new);
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if (ret)
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return ret;
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if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) {
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printf("\n** Cannot find mtd partition \"%s\"\n",
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CONFIG_ENV_UBI_PART);
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return 1;
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}
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if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME, (void *)env_new,
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CONFIG_ENV_SIZE)) {
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printf("\n** Unable to write env to %s:%s **\n",
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CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME);
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return 1;
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}
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puts("done\n");
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return 0;
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}
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#endif /* CONFIG_SYS_REDUNDAND_ENVIRONMENT */
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#endif /* CONFIG_CMD_SAVEENV */
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#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
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void env_relocate_spec(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(char, env1_buf, CONFIG_ENV_SIZE);
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ALLOC_CACHE_ALIGN_BUFFER(char, env2_buf, CONFIG_ENV_SIZE);
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env_t *tmp_env1, *tmp_env2;
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/*
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* In case we have restarted u-boot there is a chance that buffer
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* contains old environment (from the previous boot).
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* If UBI volume is zero size, ubi_volume_read() doesn't modify the
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* buffer.
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* We need to clear buffer manually here, so the invalid CRC will
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* cause setting default environment as expected.
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*/
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memset(env1_buf, 0x0, CONFIG_ENV_SIZE);
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memset(env2_buf, 0x0, CONFIG_ENV_SIZE);
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tmp_env1 = (env_t *)env1_buf;
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tmp_env2 = (env_t *)env2_buf;
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if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) {
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printf("\n** Cannot find mtd partition \"%s\"\n",
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CONFIG_ENV_UBI_PART);
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set_default_env(NULL);
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return;
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}
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if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, (void *)tmp_env1,
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CONFIG_ENV_SIZE)) {
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printf("\n** Unable to read env from %s:%s **\n",
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CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME);
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}
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if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME_REDUND, (void *)tmp_env2,
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CONFIG_ENV_SIZE)) {
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printf("\n** Unable to read redundant env from %s:%s **\n",
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CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME_REDUND);
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}
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env_import_redund((char *)tmp_env1, (char *)tmp_env2);
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}
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#else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */
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void env_relocate_spec(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
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/*
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* In case we have restarted u-boot there is a chance that buffer
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* contains old environment (from the previous boot).
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* If UBI volume is zero size, ubi_volume_read() doesn't modify the
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* buffer.
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* We need to clear buffer manually here, so the invalid CRC will
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* cause setting default environment as expected.
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*/
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memset(buf, 0x0, CONFIG_ENV_SIZE);
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if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) {
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printf("\n** Cannot find mtd partition \"%s\"\n",
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CONFIG_ENV_UBI_PART);
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set_default_env(NULL);
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return;
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}
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if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, buf, CONFIG_ENV_SIZE)) {
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printf("\n** Unable to read env from %s:%s **\n",
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CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME);
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set_default_env(NULL);
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return;
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}
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env_import(buf, 1);
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}
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#endif /* CONFIG_SYS_REDUNDAND_ENVIRONMENT */
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