eeprom.h 897 B

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * (C) Copyright 2000-2009
  4. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  5. */
  6. #ifndef __EEPROM_LEGACY_H
  7. #define __EEPROM_LEGACY_H
  8. #if defined(CONFIG_CMD_EEPROM) || defined(CONFIG_ENV_IS_IN_EEPROM)
  9. void eeprom_init(int bus);
  10. int eeprom_read(uint dev_addr, uint offset, uchar *buffer, uint cnt);
  11. int eeprom_write(uint dev_addr, uint offset, uchar *buffer, uint cnt);
  12. #else
  13. /*
  14. * Some EEPROM code is depecated because it used the legacy I2C interface. Add
  15. * some macros here so we don't have to touch every one of those uses
  16. */
  17. #define eeprom_init(bus)
  18. #define eeprom_read(dev_addr, offset, buffer, cnt) (-ENOSYS)
  19. #define eeprom_write(dev_addr, offset, buffer, cnt) (-ENOSYS)
  20. #endif
  21. #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR)
  22. # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
  23. #endif
  24. #endif