2018-05-06 21:58:06 +00:00
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// SPDX-License-Identifier: GPL-2.0
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2017-02-10 16:28:05 +00:00
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/*
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* Watchdog driver for Broadcom BCM2835
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*
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* Copyright (C) 2017 Paolo Pisati <p.pisati@gmail.com>
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*/
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#include <common.h>
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#include <efi_loader.h>
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#include <asm/io.h>
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#include <asm/arch/wdog.h>
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#define SECS_TO_WDOG_TICKS(x) ((x) << 16)
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#define MAX_TIMEOUT 0xf /* ~15s */
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static __efi_runtime_data bool enabled = true;
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extern void reset_cpu(ulong ticks);
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void hw_watchdog_reset(void)
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{
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if (enabled)
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reset_cpu(SECS_TO_WDOG_TICKS(MAX_TIMEOUT));
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}
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void hw_watchdog_init(void)
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{
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hw_watchdog_reset();
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}
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void __efi_runtime hw_watchdog_disable(void)
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{
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enabled = false;
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}
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