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https://github.com/AsahiLinux/u-boot
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25 lines
553 B
C
25 lines
553 B
C
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/*
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* Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <asm/arcregs.h>
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#define NH_MODE (1 << 1) /* Disable timer if CPU is halted */
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int timer_init(void)
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{
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write_aux_reg(ARC_AUX_TIMER0_CTRL, NH_MODE);
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/* Set max value for counter/timer */
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write_aux_reg(ARC_AUX_TIMER0_LIMIT, 0xffffffff);
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/* Set initial count value and restart counter/timer */
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write_aux_reg(ARC_AUX_TIMER0_CNT, 0);
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return 0;
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}
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unsigned long timer_read_counter(void)
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{
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return read_aux_reg(ARC_AUX_TIMER0_CNT);
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}
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