mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-08-08 08:16:59 +02:00
d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (c) 2014 Google, Inc
|
|
*/
|
|
|
|
#ifndef __I2C_EEPROM
|
|
#define __I2C_EEPROM
|
|
|
|
#include <linux/errno.h>
|
|
|
|
struct udevice;
|
|
|
|
struct i2c_eeprom_ops {
|
|
int (*read)(struct udevice *dev, int offset, uint8_t *buf, int size);
|
|
int (*write)(struct udevice *dev, int offset, const uint8_t *buf,
|
|
int size);
|
|
int (*size)(struct udevice *dev);
|
|
};
|
|
|
|
struct i2c_eeprom {
|
|
/* The EEPROM's page size in byte */
|
|
unsigned long pagesize;
|
|
/* The EEPROM's capacity in bytes */
|
|
unsigned long size;
|
|
};
|
|
|
|
#if CONFIG_IS_ENABLED(I2C_EEPROM)
|
|
/*
|
|
* i2c_eeprom_read() - read bytes from an I2C EEPROM chip
|
|
*
|
|
* @dev: Chip to read from
|
|
* @offset: Offset within chip to start reading
|
|
* @buf: Place to put data
|
|
* @size: Number of bytes to read
|
|
*
|
|
* Return: 0 on success, -ve on failure
|
|
*/
|
|
int i2c_eeprom_read(struct udevice *dev, int offset, uint8_t *buf, int size);
|
|
|
|
/*
|
|
* i2c_eeprom_write() - write bytes to an I2C EEPROM chip
|
|
*
|
|
* @dev: Chip to write to
|
|
* @offset: Offset within chip to start writing
|
|
* @buf: Buffer containing data to write
|
|
* @size: Number of bytes to write
|
|
*
|
|
* Return: 0 on success, -ve on failure
|
|
*/
|
|
int i2c_eeprom_write(struct udevice *dev, int offset, const uint8_t *buf,
|
|
int size);
|
|
|
|
/*
|
|
* i2c_eeprom_size() - get size of I2C EEPROM chip
|
|
*
|
|
* @dev: Chip to query
|
|
*
|
|
* Return: +ve size in bytes on success, -ve on failure
|
|
*/
|
|
int i2c_eeprom_size(struct udevice *dev);
|
|
|
|
#else /* !I2C_EEPROM */
|
|
|
|
static inline int i2c_eeprom_read(struct udevice *dev, int offset, uint8_t *buf,
|
|
int size)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int i2c_eeprom_write(struct udevice *dev, int offset,
|
|
const uint8_t *buf, int size)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int i2c_eeprom_size(struct udevice *dev)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
#endif /* I2C_EEPROM */
|
|
|
|
#endif
|