c80ff8437d
The helper function to get the board version from EC returns 0 on failure. But 0 is also a valid board version. Update the helper function to return -1 on failure and update the use-cases. BUG=b:114001972,b:114677884,b:114677887 Change-Id: I93e8dbce2ff26e76504b132055985f53cbf07d31 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Tested-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/28576 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Jett Rink <jettrink@google.com>
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/*
|
|
* This file is part of the coreboot project.
|
|
*
|
|
* Copyright 2014 Google Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef __INCLUDE_BOARDID_H__
|
|
#define __INCLUDE_BOARDID_H__
|
|
|
|
#include <stdint.h>
|
|
|
|
#define UNDEFINED_STRAPPING_ID (~0)
|
|
|
|
#define BOARD_ID_UNKNOWN ~((uint32_t)0) /* unsigned equivalent to -1 */
|
|
#define BOARD_ID_INIT ~((uint32_t)1) /* unsigned equivalent to -2 */
|
|
/**
|
|
* board_id() - Get the board version
|
|
*
|
|
* Return: board version on success, BOARD_ID_UNKNOWN on failure/error.
|
|
*
|
|
* This function is used to get the mainboard version.
|
|
*/
|
|
uint32_t board_id(void); /* differentiates revisions */
|
|
uint32_t ram_code(void); /* identifies installed DRAM modules */
|
|
uint32_t sku_id(void); /* differentiates other optional components */
|
|
|
|
#endif /* __INCLUDE_BOARDID_H__ */
|