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include/eeprom.h 867 Bytes
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  /* SPDX-License-Identifier: GPL-2.0+ */
  /*
   * (C) Copyright 2000-2009
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   */
  
  #ifndef __EEPROM_LEGACY_H
  #define __EEPROM_LEGACY_H
  
  #ifdef CONFIG_CMD_EEPROM
  void eeprom_init(int bus);
  int eeprom_read(uint dev_addr, uint offset, uchar *buffer, uint cnt);
  int eeprom_write(uint dev_addr, uint offset, uchar *buffer, uint cnt);
  #else
  /*
   * Some EEPROM code is depecated because it used the legacy I2C interface. Add
   * some macros here so we don't have to touch every one of those uses
   */
  #define eeprom_init(bus)
  #define eeprom_read(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
  #define eeprom_write(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
  #endif
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  #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR)
  # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
  #endif
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  #endif