1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2000-2009
4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5  */
6 
7 #ifndef __EEPROM_LEGACY_H
8 #define __EEPROM_LEGACY_H
9 
10 #if defined(CONFIG_CMD_EEPROM) || defined(CONFIG_ENV_IS_IN_EEPROM)
11 void eeprom_init(int bus);
12 int eeprom_read(uint dev_addr, uint offset, uchar *buffer, uint cnt);
13 int eeprom_write(uint dev_addr, uint offset, uchar *buffer, uint cnt);
14 #else
15 /*
16  * Some EEPROM code is depecated because it used the legacy I2C interface. Add
17  * some macros here so we don't have to touch every one of those uses
18  */
19 #define eeprom_init(bus)
20 #define eeprom_read(dev_addr, offset, buffer, cnt) (-ENOSYS)
21 #define eeprom_write(dev_addr, offset, buffer, cnt) (-ENOSYS)
22 #endif
23 
24 #if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C) && defined(CONFIG_SYS_I2C_EEPROM_ADDR)
25 # define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
26 #endif
27 
28 #endif
29