diff options
| -rw-r--r-- | board/brask/board.h | 2 | ||||
| -rw-r--r-- | board/brask/build.mk | 1 | ||||
| -rw-r--r-- | board/brask/fans.c | 50 |
3 files changed, 52 insertions, 1 deletions
diff --git a/board/brask/board.h b/board/brask/board.h index aaed745a59..feb5a84ff7 100644 --- a/board/brask/board.h +++ b/board/brask/board.h @@ -139,7 +139,7 @@ * TODO(b/197478860): Enable the fan control. We need * to check the sensor value and adjust the fan speed. */ -/* #define CONFIG_FANS FAN_CH_COUNT */ + #define CONFIG_FANS FAN_CH_COUNT /* Include math_util for bitmask_uint64 used in pd_timers */ #define CONFIG_MATH_UTIL diff --git a/board/brask/build.mk b/board/brask/build.mk index 442a708d78..81ecfa4164 100644 --- a/board/brask/build.mk +++ b/board/brask/build.mk @@ -13,6 +13,7 @@ BASEBOARD:=brask board-y= board-y+=board.o +board-y+=fans.o board-y+=i2c.o board-y+=led.o board-y+=pwm.o diff --git a/board/brask/fans.c b/board/brask/fans.c new file mode 100644 index 0000000000..f2a70636d0 --- /dev/null +++ b/board/brask/fans.c @@ -0,0 +1,50 @@ +/* Copyright 2022 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. + */ + +/* Physical fans. These are logically separate from pwm_channels. */ + +#include "common.h" +#include "compile_time_macros.h" +#include "console.h" +#include "fan_chip.h" +#include "fan.h" +#include "hooks.h" +#include "pwm.h" + +/* MFT channels. These are logically separate from pwm_channels. */ +const struct mft_t mft_channels[] = { + [MFT_CH_0] = { + .module = NPCX_MFT_MODULE_2, + .clk_src = TCKC_LFCLK, + .pwm_id = PWM_CH_FAN, + }, +}; +BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT); + +static const struct fan_conf fan_conf_0 = { + .flags = FAN_USE_RPM_MODE, + .ch = MFT_CH_0, /* Use MFT id to control fan */ + .pgood_gpio = -1, + .enable_gpio = GPIO_EN_PP5000_FAN, +}; + +/* + * TOOD(b/197478860): need to update for real fan + * + * Prototype fan spins at about 7200 RPM at 100% PWM. + * Set minimum at around 30% PWM. + */ +static const struct fan_rpm fan_rpm_0 = { + .rpm_min = 2200, + .rpm_start = 2200, + .rpm_max = 7200, +}; + +const struct fan_t fans[FAN_CH_COUNT] = { + [FAN_CH_0] = { + .conf = &fan_conf_0, + .rpm = &fan_rpm_0, + }, +}; |