diff options
Diffstat (limited to 'board/felwinter/fw_config.c')
-rw-r--r-- | board/felwinter/fw_config.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/board/felwinter/fw_config.c b/board/felwinter/fw_config.c new file mode 100644 index 0000000000..fb8acb635d --- /dev/null +++ b/board/felwinter/fw_config.c @@ -0,0 +1,60 @@ +/* Copyright 2021 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "common.h" +#include "compile_time_macros.h" +#include "console.h" +#include "cros_board_info.h" +#include "fw_config.h" + +#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args) + +static union brya_cbi_fw_config fw_config; +BUILD_ASSERT(sizeof(fw_config) == sizeof(uint32_t)); + +/* + * FW_CONFIG defaults for brya if the CBI.FW_CONFIG data is not + * initialized. + */ +static const union brya_cbi_fw_config fw_config_defaults = { + .usb_db = DB_USB3_PS8815, + .kb_bl = KEYBOARD_BACKLIGHT_ENABLED, +}; + +/**************************************************************************** + * Brya FW_CONFIG access + */ +void board_init_fw_config(void) +{ + if (cbi_get_fw_config(&fw_config.raw_value)) { + CPRINTS("CBI: Read FW_CONFIG failed, using board defaults"); + fw_config = fw_config_defaults; + } + + if (get_board_id() == 0) { + /* + * Early boards have a zero'd out FW_CONFIG, so replace + * it with a sensible default value. If DB_USB_ABSENT2 + * was used as an alternate encoding of DB_USB_ABSENT to + * avoid the zero check, then fix it. + */ + if (fw_config.raw_value == 0) { + CPRINTS("CBI: FW_CONFIG is zero, using board defaults"); + fw_config = fw_config_defaults; + } else if (fw_config.usb_db == DB_USB_ABSENT2) { + fw_config.usb_db = DB_USB_ABSENT; + } + } +} + +union brya_cbi_fw_config get_fw_config(void) +{ + return fw_config; +} + +enum ec_cfg_usb_db_type ec_cfg_usb_db_type(void) +{ + return fw_config.usb_db; +} |