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authorMichał Żygowski <michal.zygowski@3mdeb.com>2018-12-31 10:45:19 +0100
committerPatrick Georgi <pgeorgi@google.com>2019-05-15 17:45:14 +0000
commitdcfff3739be63c2d42e16860243d7bec98c7ba44 (patch)
tree57fa974627e6028291ff8d6b6b57439d01451c6d /src/superio/ite/common/env_ctrl.c
parent9a8c5e7ac0f559898c4d5fcb99a51e4dc472f51f (diff)
downloadcoreboot-dcfff3739be63c2d42e16860243d7bec98c7ba44.tar.xz
src/superio/ite/common: Prepare for ITE IT8786E SuperIO
Introduce 7bit Slope PWM registers. New ITE SuperIO may have contiguous 7bit values for PWM slope. Add option to enable External Sensor SMBus Host. Update/add registers macros for IT8786E-F which are not backwards compatible. Change-Id: I68fbfe62dfa05d0c166abaefbdc2ab873114b236 Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/30553 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/superio/ite/common/env_ctrl.c')
-rw-r--r--src/superio/ite/common/env_ctrl.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/src/superio/ite/common/env_ctrl.c b/src/superio/ite/common/env_ctrl.c
index 57896e0c01..1b93036845 100644
--- a/src/superio/ite/common/env_ctrl.c
+++ b/src/superio/ite/common/env_ctrl.c
@@ -4,6 +4,7 @@
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
* Copyright (C) 2016 secunet Security Networks AG
* Copyright (C) 2019 Protectli
+ * Copyright (C) 2019 Libretrend LDA
*
* 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
@@ -165,9 +166,14 @@ static void fan_smartconfig(const u16 base, const u8 fan,
pwm_ctrl |= ITE_EC_FAN_CTL_TEMPIN(conf->tmpin);
pwm_start = ITE_EC_FAN_CTL_PWM_START_DUTY(conf->pwm_start);
- pwm_start |= ITE_EC_FAN_CTL_PWM_SLOPE_BIT6(conf->slope);
- pwm_auto = ITE_EC_FAN_CTL_PWM_SLOPE_LOWER(conf->slope);
+ if (CONFIG(SUPERIO_ITE_ENV_CTRL_7BIT_SLOPE_REG)) {
+ pwm_auto = conf->slope & 0x7f;
+ } else {
+ pwm_start |= ITE_EC_FAN_CTL_PWM_SLOPE_BIT6(conf->slope);
+ pwm_auto = ITE_EC_FAN_CTL_PWM_SLOPE_LOWER(conf->slope);
+ }
+
if (conf->smoothing)
pwm_auto |= ITE_EC_FAN_CTL_AUTO_SMOOTHING_EN;
@@ -287,6 +293,13 @@ void ite_ec_init(const u16 base, const struct ite_ec_config *const conf)
for (i = 0; i < ITE_EC_TMPIN_CNT; ++i)
enable_tmpin(base, i + 1, &conf->tmpin[i]);
+ /* Enable External Sensor SMBus Host if configured */
+ if (conf->smbus_en) {
+ ite_ec_write(base, ITE_EC_INTERFACE_SELECT,
+ ite_ec_read(base, ITE_EC_INTERFACE_SELECT) |
+ ITE_EC_INTERFACE_SMB_ENABLE);
+ }
+
/* Enable reading of voltage pins */
ite_ec_write(base, ITE_EC_ADC_VOLTAGE_CHANNEL_ENABLE, conf->vin_mask);