LXR uboot/common/env

   1/*
   2 * (C) Copyright 2011-2012 Freescale Semiconductor, Inc.
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7/* #define DEBUG */
   8
   9#include <common.h>
  10#include <command.h>
  11#include <environment.h>
  12#include <linux/stddef.h>
  13
  14char *env_name_spec = "Remote";
  15
  16#ifdef ENV_IS_EMBEDDED
  17env_t *env_ptr = &environment;
  18#else /* ! ENV_IS_EMBEDDED */
  19env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
  20#endif /* ENV_IS_EMBEDDED */
  21
  22DECLARE_GLOBAL_DATA_PTR;
  23
  24#if !defined(CONFIG_ENV_OFFSET)
  25#define CONFIG_ENV_OFFSET 0
  26#endif
  27
  28int env_init(void)
  29{
  30        if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
  31                gd->env_addr = (ulong)&(env_ptr->data);
  32                gd->env_valid = 1;
  33                return 0;
  34        }
  35
  36        gd->env_addr = (ulong)default_environment;
  37        gd->env_valid = 0;
  38        return 0;
  39}
  40
  41#ifdef CONFIG_CMD_SAVEENV
  42int saveenv(void)
  43{
  44#ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE
  45        printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n");
  46        return 1;
  47#else
  48        return 0;
  49#endif
  50}
  51#endif /* CONFIG_CMD_SAVEENV */
  52
  53void env_relocate_spec(void)
  54{
  55#ifndef ENV_IS_EMBEDDED
  56        env_import((char *)env_ptr, 1);
  57#endif
  58}
  59