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Diffstat (limited to 'src/mainboard/intel/glkrvp/boardid.c')
| -rw-r--r-- | src/mainboard/intel/glkrvp/boardid.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/mainboard/intel/glkrvp/boardid.c b/src/mainboard/intel/glkrvp/boardid.c new file mode 100644 index 0000000000..6e2ef0b6c8 --- /dev/null +++ b/src/mainboard/intel/glkrvp/boardid.c @@ -0,0 +1,38 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017 Intel Corporation + * + * 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. + */ + +#include <baseboard/variants.h> +#include <boardid.h> +#include <stddef.h> +#include <ec/acpi/ec.h> + +#define BOARD_ID_GLK_RVP1_DDR4 0x5 /* RVP1 - DDR4 */ +#define BOARD_ID_GLK_RVP2_LP4SD 0x7 /* RVP2 - LP4 Solder Down */ +#define BOARD_ID_GLK_RVP2_LP4 0x8 /* RVP2 - LP4 Socket */ +#define EC_FAB_ID_CMD 0x0D /* Get the board fab ID in the lower 3 bits */ + +uint8_t board_id(void) +{ + MAYBE_STATIC int id = -1; + if (id < 0) { + if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)) + id = variant_board_id(); + else { + if (send_ec_command(EC_FAB_ID_CMD) == 0) + id = (recv_ec_data() & 0x07); + } + } + return id; +} |