// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2013
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*/
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#include <common.h>
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#include <environment.h>
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extern u32 rtc_read_data(int index);
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extern void rtc_write_data(int index, u32 val);
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#define RTC_BOOTCOUNT_INDEX 7
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#define RTC_BOOTCOUNT_OFFSET 0
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#define RTC_BOOTCOUNT_BIT 8
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#define RTC_BOOTCOUNT_MASK (((1 << RTC_BOOTCOUNT_BIT) -1) << RTC_BOOTCOUNT_OFFSET)
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static void set_bootcount_to_rtc(ulong a)
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{
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u32 val = ((a << RTC_BOOTCOUNT_OFFSET) & RTC_BOOTCOUNT_MASK);
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rtc_write_data(RTC_BOOTCOUNT_INDEX, val);
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}
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static ulong get_bootcount_from_rtc(void)
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{
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u32 val = 0;
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val = (rtc_read_data(RTC_BOOTCOUNT_INDEX) & RTC_BOOTCOUNT_MASK);
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return (val >> RTC_BOOTCOUNT_OFFSET);
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}
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void bootcount_store(ulong a)
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{
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int upgrade_available = env_get_ulong("upgrade_available", 10, 0);
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if (upgrade_available) {
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set_bootcount_to_rtc(a);
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}
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}
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ulong bootcount_load(void)
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{
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int upgrade_available = env_get_ulong("upgrade_available", 10, 0);
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ulong val = 0;
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if (upgrade_available)
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val = get_bootcount_from_rtc();
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return val;
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}
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