/* SPDX-License-Identifier: GPL-2.0-only */ #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__ */