104 lines
2.5 KiB
C
104 lines
2.5 KiB
C
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/*
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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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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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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 <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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int saveenv(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
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ssize_t len;
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char *res;
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res = (char *)&env_new->data;
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len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
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if (len < 0) {
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error("Cannot export environment: errno = %d\n", errno);
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return 1;
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}
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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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env_new->crc = crc32(0, env_new->data, ENV_SIZE);
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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_CMD_SAVEENV */
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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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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 *)&buf,
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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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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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