u-boot/board/cssi/common/common.h
Christophe Leroy 4b6a5388da board: cssi: Refactor EEPROM read
On cmpc885 board, the ethernet addresses are stored in an
EEPROM that is accessed through SPI.

A 3 bytes command is sent to the chip then the content
gets read. At the time being a single block access is
performed, ignoring the first 3 bytes read.

Reword the SPI transfer to first send 3 bytes then
receive the content of the EEPROM so that there don't be
3 dummy bytes at the beginning of the buffer.

And move the function into common.c so that it can be
reused by the board that will be added in a future patch.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
2023-04-28 17:52:23 +02:00

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C

/* SPDX-License-Identifier: GPL-2.0+ */
#ifndef _BOARD_CSSI_COMMON_H
#define _BOARD_CSSI_COMMON_H
void ft_cleanup(void *blob, unsigned long id, const char *prop, const char *compatible);
int read_eeprom(u8 *din, int len);
#endif /* _BOARD_CSSI_COMMON_H */