07564e1762
Implement a driver for the RTC embedded in the RK805/RK808 power management system used for RK3328 and RK3399 SoCs. Based on experiments on my RK808, setting the time doesn't alter the internal/inaccessible sub-second counter, therefore there's no point in calling clock_schedule(). Based on an earlier revision by andrew. Reviewed by: manu Differential Revision: https://reviews.freebsd.org/D22692 Sponsored by: Google MFC after: 1 week
124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2018 Emmanuel Vadot <manu@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _RK805REG_H_
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#define _RK805REG_H_
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/*
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* The RTC registers are the same in both RK805 and RK808.
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* Note that the code assumes that RK805_RTC_SECS is 0
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*/
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#define RK805_RTC_SECS 0x00
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#define RK805_RTC_SECS_MASK 0x7f
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#define RK805_RTC_MINUTES 0x01
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#define RK805_RTC_MINUTES_MASK 0x7f
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#define RK805_RTC_HOURS 0x02
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#define RK805_RTC_HOURS_MASK 0x3f
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#define RK805_RTC_HOURS_PM 0x80
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#define RK805_RTC_DAYS 0x03
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#define RK805_RTC_DAYS_MASK 0x3f
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#define RK805_RTC_MONTHS 0x04
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#define RK805_RTC_MONTHS_MASK 0x1f
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#define RK805_RTC_YEARS 0x05
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#define RK805_RTC_WEEKS 0x06 /* day of week */
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#define RK805_RTC_WEEKS_MASK 0x07
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#define RK805_RTC_CTRL 0x10
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#define RK805_RTC_CTRL_STOP (1 << 0)
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#define RK805_RTC_AMPM_MODE (1 << 3)
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#define RK805_RTC_GET_TIME (1 << 6)
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#define RK805_RTC_READSEL (1 << 7)
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#define RK805_CHIP_NAME 0x17
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#define RK805_CHIP_VER 0x18
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#define RK805_OTP_VER 0x19
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#define RK805_DCDC_EN 0x23
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#define RK808_LDO_EN 0x24
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#define RK805_SLEEP_DCDC_EN 0x25
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#define RK805_SLEEP_LDO_EN 0x26
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#define RK805_LDO_EN 0x27
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#define RK805_SLEEP_LDO_LP_EN 0x2A
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#define RK805_DCDC1_CONFIG 0x2E
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#define RK805_DCDC1_ON_VSEL 0x2F
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#define RK805_DCDC1_SLEEP_VSEL 0x30
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#define RK805_DCDC2_CONFIG 0x32
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#define RK805_DCDC2_ON_VSEL 0x33
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#define RK805_DCDC2_SLEEP_VSEL 0x34
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#define RK805_DCDC3_CONFIG 0x36
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#define RK805_DCDC4_CONFIG 0x37
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#define RK805_DCDC4_ON_VSEL 0x38
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#define RK805_DCDC4_SLEEP_VSEL 0x39
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#define RK805_LDO1_ON_VSEL 0x3B
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#define RK805_LDO1_SLEEP_VSEL 0x3C
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#define RK805_LDO2_ON_VSEL 0x3D
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#define RK805_LDO2_SLEEP_VSEL 0x3E
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#define RK805_LDO3_ON_VSEL 0x3F
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#define RK805_LDO3_SLEEP_VSEL 0x40
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#define RK808_LDO4_ON_VSEL 0x41
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#define RK808_LDO4_SLEEP_VSEL 0x42
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#define RK808_LDO5_ON_VSEL 0x43
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#define RK808_LDO5_SLEEP_VSEL 0x44
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#define RK808_LDO6_ON_VSEL 0x45
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#define RK808_LDO6_SLEEP_VSEL 0x46
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#define RK808_LDO7_ON_VSEL 0x47
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#define RK808_LDO7_SLEEP_VSEL 0x48
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#define RK808_LDO8_ON_VSEL 0x49
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#define RK808_LDO8_SLEEP_VSEL 0x4A
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enum rk805_regulator {
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RK805_DCDC1 = 0,
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RK805_DCDC2,
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RK805_DCDC3,
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RK805_DCDC4,
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RK805_LDO1,
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RK805_LDO2,
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RK805_LDO3,
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};
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enum rk808_regulator {
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RK808_DCDC1 = 0,
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RK808_DCDC2,
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RK808_DCDC3,
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RK808_DCDC4,
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RK808_LDO1,
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RK808_LDO2,
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RK808_LDO3,
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RK808_LDO4,
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RK808_LDO5,
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RK808_LDO6,
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RK808_LDO7,
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RK808_LDO8,
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RK808_SWITCH1,
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RK808_SWITCH2,
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};
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#endif /* _RK805REG_H_ */
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