87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2014-2019 MediaTek Inc.
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*
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* Author: Tianping.Fang <tianping.fang@mediatek.com>
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* Sean Wang <sean.wang@mediatek.com>
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*/
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#ifndef _LINUX_MFD_MT6397_RTC_H_
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#define _LINUX_MFD_MT6397_RTC_H_
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#include <linux/jiffies.h>
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#include <linux/mutex.h>
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#include <linux/regmap.h>
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#include <linux/rtc.h>
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#define RTC_BBPU 0x0000
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#define RTC_BBPU_CBUSY BIT(6)
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#define RTC_BBPU_KEY (0x43 << 8)
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#define RTC_WRTGR_MT6358 0x003a
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#define RTC_WRTGR_MT6397 0x003c
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#define RTC_WRTGR_MT6323 RTC_WRTGR_MT6397
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#define RTC_IRQ_STA 0x0002
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#define RTC_IRQ_STA_AL BIT(0)
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#define RTC_IRQ_STA_LP BIT(3)
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#define RTC_IRQ_EN 0x0004
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#define RTC_IRQ_EN_AL BIT(0)
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#define RTC_IRQ_EN_ONESHOT BIT(2)
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#define RTC_IRQ_EN_LP BIT(3)
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#define RTC_IRQ_EN_ONESHOT_AL (RTC_IRQ_EN_ONESHOT | RTC_IRQ_EN_AL)
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#define RTC_AL_MASK 0x0008
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#define RTC_AL_MASK_DOW BIT(4)
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#define RTC_TC_SEC 0x000a
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#define RTC_TC_MTH_MASK 0x000f
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/* Min, Hour, Dom... register offset to RTC_TC_SEC */
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#define RTC_OFFSET_SEC 0
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#define RTC_OFFSET_MIN 1
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#define RTC_OFFSET_HOUR 2
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#define RTC_OFFSET_DOM 3
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#define RTC_OFFSET_DOW 4
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#define RTC_OFFSET_MTH 5
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#define RTC_OFFSET_YEAR 6
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#define RTC_OFFSET_COUNT 7
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#define RTC_AL_SEC 0x0018
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#define RTC_AL_SEC_MASK 0x003f
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#define RTC_AL_MIN_MASK 0x003f
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#define RTC_AL_HOU_MASK 0x001f
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#define RTC_AL_DOM_MASK 0x001f
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#define RTC_AL_DOW_MASK 0x0007
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#define RTC_AL_MTH_MASK 0x000f
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#define RTC_AL_YEA_MASK 0x007f
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#define RTC_PDN2 0x002e
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#define RTC_PDN2_PWRON_ALARM BIT(4)
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#define RTC_MIN_YEAR 1968
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#define RTC_BASE_YEAR 1900
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#define RTC_NUM_YEARS 128
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#define RTC_MIN_YEAR_OFFSET (RTC_MIN_YEAR - RTC_BASE_YEAR)
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#define MTK_RTC_POLL_DELAY_US 10
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#define MTK_RTC_POLL_TIMEOUT (jiffies_to_usecs(HZ))
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struct mtk_rtc_data {
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u32 wrtgr;
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};
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struct mt6397_rtc {
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struct rtc_device *rtc_dev;
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/* Protect register access from multiple tasks */
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struct mutex lock;
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struct regmap *regmap;
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int irq;
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u32 addr_base;
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const struct mtk_rtc_data *data;
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};
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#endif /* _LINUX_MFD_MT6397_RTC_H_ */
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