mirror of
https://github.com/AsahiLinux/u-boot
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80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
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/*
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* (C) Copyright 2011-2012 Freescale Semiconductor, Inc.
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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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/* #define DEBUG */
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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 <linux/stddef.h>
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char *env_name_spec = "Remote";
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#ifdef ENV_IS_EMBEDDED
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env_t *env_ptr = &environment;
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#else /* ! ENV_IS_EMBEDDED */
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env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
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#endif /* ENV_IS_EMBEDDED */
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DECLARE_GLOBAL_DATA_PTR;
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#if !defined(CONFIG_ENV_OFFSET)
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#define CONFIG_ENV_OFFSET 0
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#endif
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uchar env_get_char_spec(int index)
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{
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return *((uchar *)(gd->env_addr + index));
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}
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int env_init(void)
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{
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if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
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gd->env_addr = (ulong)&(env_ptr->data);
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gd->env_valid = 1;
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return 0;
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}
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gd->env_addr = (ulong)default_environment;
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gd->env_valid = 0;
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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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#ifdef CONFIG_SRIOBOOT_SLAVE
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printf("Can not support the 'saveenv' when boot from SRIO!\n");
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return 1;
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#else
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return 0;
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#endif
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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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#ifndef ENV_IS_EMBEDDED
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env_import((char *)env_ptr, 1);
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#endif
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}
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