| /* SPDX-License-Identifier: GPL-2.0-only */ |
| #include "board_id.h" |
| #include <ec/acpi/ec.h> |
| #include <stdint.h> |
| #include <stddef.h> |
| |
| /* |
| * Get Board info via EC I/O port write/read |
| */ |
| int get_ec_boardinfo(void) |
| { |
| static int ec_info = -1; |
| if (ec_info < 0) { |
| uint8_t buffer[2]; |
| uint8_t index; |
| if (send_ec_command(EC_FAB_ID_CMD) == 0) { |
| for (index = 0; index < sizeof(buffer); index++) |
| buffer[index] = recv_ec_data(); |
| ec_info = (buffer[1] << 8) | buffer[0]; |
| } |
| } |
| return ec_info; |
| } |
| |
| /* Get spd index */ |
| int get_spd_index(u8 *spd_index) |
| { |
| int ec_info = get_ec_boardinfo(); |
| if (ec_info >= 0) { |
| *spd_index = ((uint16_t)ec_info >> 5) & 0x7; |
| return 0; |
| } |
| return -1; |
| } |
| |
| /* Get Board Id */ |
| int get_board_id(void) |
| { |
| int ec_info = get_ec_boardinfo(); |
| if (ec_info >= 0) |
| return ((uint16_t)ec_info >> 8) & 0xff; |
| |
| return -1; |
| } |