61 lines
1016 B
C
61 lines
1016 B
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef RTC_H
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#define RTC_H
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/* RTC registers */
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enum {
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RTC_BBPU = 0xE000,
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RTC_IRQ_STA = 0xE002,
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RTC_IRQ_EN = 0xE004,
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RTC_CII_EN = 0xE006
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};
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enum {
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RTC_OSC32CON = 0xE026,
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RTC_CON = 0xE03E,
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RTC_WRTGR = 0xE03C
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};
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enum {
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RTC_PDN1 = 0xE02C,
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RTC_PDN2 = 0xE02E,
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RTC_SPAR0 = 0xE030,
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RTC_SPAR1 = 0xE032,
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RTC_PROT = 0xE036,
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RTC_DIFF = 0xE038,
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RTC_CALI = 0xE03A
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};
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enum {
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RTC_PROT_UNLOCK1 = 0x586A,
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RTC_PROT_UNLOCK2 = 0x9136
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};
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enum {
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RTC_BBPU_PWREN = 1U << 0,
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RTC_BBPU_BBPU = 1U << 2,
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RTC_BBPU_AUTO = 1U << 3,
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RTC_BBPU_CLRPKY = 1U << 4,
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RTC_BBPU_RELOAD = 1U << 5,
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RTC_BBPU_CBUSY = 1U << 6
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};
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enum {
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RTC_BBPU_KEY = 0x43 << 8
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};
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/* external API */
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uint16_t RTC_Read(uint32_t addr);
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void RTC_Write(uint32_t addr, uint16_t data);
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int32_t rtc_busy_wait(void);
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int32_t RTC_Write_Trigger(void);
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int32_t Writeif_unlock(void);
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void rtc_bbpu_power_down(void);
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#endif /* RTC_H */
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