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common/env_remote.c 1.04 KB
0a85a9e70   Liu Gang   powerpc/corenet_d...
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  /*
   * (C) Copyright 2011-2012 Freescale Semiconductor, Inc.
   *
3765b3e7b   Wolfgang Denk   Coding Style clea...
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   * SPDX-License-Identifier:	GPL-2.0+
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   */
  
  /* #define DEBUG */
  
  #include <common.h>
  #include <command.h>
  #include <environment.h>
  #include <linux/stddef.h>
  
  char *env_name_spec = "Remote";
  
  #ifdef ENV_IS_EMBEDDED
  env_t *env_ptr = &environment;
  #else /* ! ENV_IS_EMBEDDED */
  env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
  #endif /* ENV_IS_EMBEDDED */
  
  DECLARE_GLOBAL_DATA_PTR;
  
  #if !defined(CONFIG_ENV_OFFSET)
  #define CONFIG_ENV_OFFSET 0
  #endif
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  int env_init(void)
  {
  	if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
  		gd->env_addr = (ulong)&(env_ptr->data);
  		gd->env_valid = 1;
  		return 0;
  	}
  
  	gd->env_addr = (ulong)default_environment;
  	gd->env_valid = 0;
  	return 0;
  }
  
  #ifdef CONFIG_CMD_SAVEENV
  int saveenv(void)
  {
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  #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE
  	printf("Can not support the 'saveenv' when boot from SRIO or PCIE!
  ");
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  	return 1;
  #else
  	return 0;
  #endif
  }
  #endif /* CONFIG_CMD_SAVEENV */
  
  void env_relocate_spec(void)
  {
  #ifndef ENV_IS_EMBEDDED
  	env_import((char *)env_ptr, 1);
  #endif
  }