diff options
Diffstat (limited to 'zephyr/program/skyrim/skyrim/src/fan.c')
-rw-r--r-- | zephyr/program/skyrim/skyrim/src/fan.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/zephyr/program/skyrim/skyrim/src/fan.c b/zephyr/program/skyrim/skyrim/src/fan.c new file mode 100644 index 0000000000..c584022a92 --- /dev/null +++ b/zephyr/program/skyrim/skyrim/src/fan.c @@ -0,0 +1,62 @@ +/* Copyright 2022 The ChromiumOS Authors + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "cros_board_info.h" +#include "cros_cbi.h" +#include "fan.h" +#include "gpio/gpio.h" +#include "hooks.h" + +#include <zephyr/devicetree.h> +#include <zephyr/drivers/gpio.h> +#include <zephyr/logging/log.h> + +LOG_MODULE_DECLARE(skyrim, CONFIG_SKYRIM_LOG_LEVEL); + +/* + * Skyrim fan support + */ +static void fan_init(void) +{ + int ret; + uint32_t val; + uint32_t board_version; + /* + * Retrieve the fan config. + */ + ret = cros_cbi_get_fw_config(FW_FAN, &val); + if (ret != 0) { + LOG_ERR("Error retrieving CBI FW_CONFIG field %d", FW_FAN); + return; + } + + ret = cbi_get_board_version(&board_version); + if (ret != EC_SUCCESS) { + LOG_ERR("Error retrieving CBI board version"); + return; + } + + if ((board_version >= 3) && (val != FW_FAN_PRESENT)) { + /* Disable the fan */ + fan_set_count(0); + } +} +DECLARE_HOOK(HOOK_INIT, fan_init, HOOK_PRIO_POST_FIRST); + +/* + * Pcore OCP support + * Note: early boards should note enable this interrupt as they are not + * correctly configured for it. + */ +__override bool board_supports_pcore_ocp(void) +{ + uint32_t board_version; + + if (cbi_get_board_version(&board_version) == EC_SUCCESS && + board_version > 3) + return true; + + return false; +} |