27 lines
582 B
C
27 lines
582 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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*/
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#ifndef _ASM_DELAY_H
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#define _ASM_DELAY_H
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#include <linux/param.h>
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extern void __delay(unsigned long cycles);
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extern void __ndelay(unsigned long ns);
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extern void __udelay(unsigned long us);
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#define ndelay(ns) __ndelay(ns)
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#define udelay(us) __udelay(us)
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/* make sure "usecs *= ..." in udelay do not overflow. */
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#if HZ >= 1000
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#define MAX_UDELAY_MS 1
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#elif HZ <= 200
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#define MAX_UDELAY_MS 5
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#else
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#define MAX_UDELAY_MS (1000 / HZ)
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#endif
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#endif /* _ASM_DELAY_H */
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