e34e178ca3
The environment-controller entity is shared by many ITE super-i/o chips. There are some differences between the chips, though. To cover that, the super-i/o chip should select Kconfig options of this driver accordingly. The current implementation isn't exhaustive: It covers only those parts that are connected on boards I could test, plus those that are currently used by the IT8772F. The latter could be ported to use this driver if somebody minds to test it. Change-Id: I7a40f677f667d103ce1d09a3e468915729067803 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/17284 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
136 lines
5.4 KiB
C
136 lines
5.4 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
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* Copyright (C) 2016 secunet Security Networks AG
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef SUPERIO_ITE_ENV_CTRL_H
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#define SUPERIO_ITE_ENV_CTRL_H
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#include "env_ctrl_chip.h"
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#if IS_ENABLED(CONFIG_SUPERIO_ITE_ENV_CTRL_8BIT_PWM)
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#define ITE_EC_FAN_MAX_PWM 0xff
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#define ITE_EC_FAN_PWM_DEFAULT_CLOCK ITE_EC_FAN_PWM_CLOCK_6MHZ
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#else
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#define ITE_EC_FAN_MAX_PWM 0x7f
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#define ITE_EC_FAN_PWM_DEFAULT_CLOCK ITE_EC_FAN_PWM_CLOCK_3MHZ
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#endif
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#define ITE_EC_CONFIGURATION 0x00
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#define ITE_EC_CONFIGURATION_START (1 << 0)
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#define ITE_EC_INTERFACE_SELECT 0x0a
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#define ITE_EC_INTERFACE_PSEUDO_EOC (1 << 7)
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#define ITE_EC_INTERFACE_SMB_ENABLE (1 << 6)
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#define ITE_EC_INTERFACE_SEL_DISABLE (0 << 4)
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#define ITE_EC_INTERFACE_SEL_SST_SLAVE (1 << 4)
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#define ITE_EC_INTERFACE_SEL_PECI (2 << 4)
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#define ITE_EC_INTERFACE_SEL_SST_HOST (3 << 4)
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#define ITE_EC_INTERFACE_CLOCK_32MHZ (0 << 3)
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#define ITE_EC_INTERFACE_CLOCK_24MHZ (1 << 3)
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#define ITE_EC_INTERFACE_SPEED_TOLERANCE (1 << 2)
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#define ITE_EC_INTERFACE_PECI_AWFCS (1 << 0)
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#define ITE_EC_FAN_PWM_SMOOTHING_FREQ 0x0b
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#define ITE_EC_FAN_PWM_SMOOTHING_MASK (3 << 6)
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#define ITE_EC_FAN_PWM_SMOOTHING_1KHZ (0 << 6)
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#define ITE_EC_FAN_PWM_SMOOTHING_256HZ (1 << 6)
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#define ITE_EC_FAN_PWM_SMOOTHING_64HZ (2 << 6)
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#define ITE_EC_FAN_PWM_SMOOTHING_16HZ (3 << 6)
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#define ITE_EC_FAN_TAC_COUNTER_ENABLE 0x0c
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#define ITE_EC_FAN_TAC_16BIT_ENABLE(x) (1 << ((x)-1))
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#define ITE_EC_FAN_TAC_LIMIT(x) (0x10 + ((x)-1))
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#define ITE_EC_FAN_TAC_EXT_LIMIT(x) (0x1b + ((x)-1))
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#define ITE_EC_FAN_MAIN_CTL 0x13
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#define ITE_EC_FAN_MAIN_CTL_TAC_EN(x) (1 << ((x)+3))
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#define ITE_EC_FAN_MAIN_CTL_COLL_FULL_SPEED (1 << 3)
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#define ITE_EC_FAN_MAIN_CTL_SMART(x) (1 << ((x)-1))
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#define ITE_EC_FAN_CTL_MODE 0x14
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#define ITE_EC_FAN_CTL_POLARITY_HIGH (1 << 7)
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#define ITE_EC_FAN_PWM_CLOCK_MASK (7 << 4)
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#define ITE_EC_FAN_PWM_CLOCK_48MHZ (0 << 4)
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#define ITE_EC_FAN_PWM_CLOCK_24MHZ (1 << 4)
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#define ITE_EC_FAN_PWM_CLOCK_12MHZ (2 << 4)
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#define ITE_EC_FAN_PWM_CLOCK_8MHZ (3 << 4)
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#define ITE_EC_FAN_PWM_CLOCK_6MHZ (4 << 4)
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#define ITE_EC_FAN_PWM_CLOCK_3MHZ (5 << 4)
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#define ITE_EC_FAN_PWM_CLOCK_1_5MHZ (6 << 4)
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#define ITE_EC_FAN_PWM_CLOCK_51KHZ (7 << 4)
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#define ITE_EC_FAN_PWM_MIN_DUTY_20 (1 << 3)
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#define ITE_EC_FAN_CTL_ON(x) (1 << ((x)-1))
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#define ITE_EC_FAN_CTL_PWM_CONTROL(x) (0x15 + ((x)-1))
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#define ITE_EC_FAN_CTL_PWM_MODE_SOFTWARE (0 << 7)
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#define ITE_EC_FAN_CTL_PWM_MODE_AUTOMATIC (1 << 7)
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#define ITE_EC_FAN_CTL_PWM_DUTY_MASK (ITE_EC_FAN_MAX_PWM << 0)
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#define ITE_EC_FAN_CTL_PWM_DUTY(p) \
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({ \
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const unsigned int _p = p; \
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(_p >= 100) \
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? ITE_EC_FAN_MAX_PWM \
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: (_p * ITE_EC_FAN_MAX_PWM) / 100; \
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})
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#define ITE_EC_FAN_CTL_TEMPIN_MASK (3 << 0)
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#define ITE_EC_FAN_CTL_TEMPIN(x) (((x)-1) & 3)
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#define ITE_EC_ADC_VOLTAGE_CHANNEL_ENABLE 0x50
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#define ITE_EC_ADC_TEMP_CHANNEL_ENABLE 0x51
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#define ITE_EC_ADC_TEMP_EXT_REPORTS_TO(x) (((x) & 3) << 6)
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#define ITE_EC_ADC_TEMP_RESISTOR_MODE(x) (1 << ((x)+2))
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#define ITE_EC_ADC_TEMP_DIODE_MODE(x) (1 << ((x)-1))
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#define ITE_EC_ADC_TEMP_EXTRA_CHANNEL_ENABLE 0x55
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#define ITE_EC_FAN_CTL_TEMP_LIMIT_OFF(x) (0x60 + ((x)-1) * 8)
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#define ITE_EC_FAN_CTL_TEMP_LIMIT_START(x) (0x61 + ((x)-1) * 8)
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#define ITE_EC_FAN_CTL_TEMP_LIMIT_FULL(x) (0x62 + ((x)-1) * 8)
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#define ITE_EC_FAN_CTL_PWM_START(x) (0x63 + ((x)-1) * 8)
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#define ITE_EC_FAN_CTL_PWM_SLOPE_BIT6(s) (((s) & 0x40) << 1)
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#define ITE_EC_FAN_CTL_PWM_START_DUTY(p) ITE_EC_FAN_CTL_PWM_DUTY(p)
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#define ITE_EC_FAN_CTL_PWM_AUTO(x) (0x64 + ((x)-1) * 8)
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#define ITE_EC_FAN_CTL_AUTO_SMOOTHING_EN (1 << 7)
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#define ITE_EC_FAN_CTL_PWM_SLOPE_LOWER(s) ((s) & 0x3f)
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#define ITE_EC_FAN_CTL_DELTA_TEMP(x) (0x65 + ((x)-1) * 8)
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#define ITE_EC_FAN_CTL_DELTA_TEMP_INTRVL(c) ((c) & 0x1f)
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#define ITE_EC_EXTEMP_STATUS 0x88
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#define ITE_EC_EXTEMP_STATUS_HOST_BUSY (1 << 0)
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#define ITE_EC_EXTEMP_ADDRESS 0x89
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#define ITE_EC_EXTEMP_WRITE_LENGTH 0x8a
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#define ITE_EC_EXTEMP_READ_LENGTH 0x8b
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#define ITE_EC_EXTEMP_COMMAND 0x8c
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#define ITE_EC_EXTEMP_WRITE_DATA_2 0x8d
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#define ITE_EC_EXTEMP_CONTROL 0x8e
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#define ITE_EC_EXTEMP_CTRL_AUTO_32HZ (0 << 6)
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#define ITE_EC_EXTEMP_CTRL_AUTO_16HZ (1 << 6)
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#define ITE_EC_EXTEMP_CTRL_AUTO_8HZ (2 << 6)
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#define ITE_EC_EXTEMP_CTRL_AUTO_4HZ (3 << 6)
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#define ITE_EC_EXTEMP_CTRL_AUTO_START (1 << 5)
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#define ITE_EC_EXTEMP_CTRL_AUTO_ABORT (1 << 4)
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#define ITE_EC_EXTEMP_CTRL_AUTO_TWO_DOMAIN (1 << 3)
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#define ITE_EC_EXTEMP_CTRL_CONTENTION (1 << 2)
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#define ITE_EC_EXTEMP_CTRL_SST_IDLE_HIGH (1 << 1)
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#define ITE_EC_EXTEMP_CTRL_START (1 << 0)
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/* Standard PECI GetTemp */
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#define PECI_CLIENT_ADDRESS 0x30
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#define PECI_GETTEMP_COMMAND 0x01
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#define PECI_GETTEMP_WRITE_LENGTH 0x01
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#define PECI_GETTEMP_READ_LENGTH 0x02
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void ite_ec_init(u16 base, const struct ite_ec_config *conf);
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#endif /* SUPERIO_ITE_ENV_CTRL_H */
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