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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_SCORE_DELAY_H
3#define _ASM_SCORE_DELAY_H
4
5#include <asm-generic/param.h>
6
7static inline void __delay(unsigned long loops)
8{
9 /* 3 cycles per loop. */
10 __asm__ __volatile__ (
11 "1:\tsubi\t%0, 3\n\t"
12 "cmpz.c\t%0\n\t"
13 "ble\t1b\n\t"
14 : "=r" (loops)
15 : "0" (loops));
16}
17
18static inline void __udelay(unsigned long usecs)
19{
20 unsigned long loops_per_usec;
21
22 loops_per_usec = (loops_per_jiffy * HZ) / 1000000;
23
24 __delay(usecs * loops_per_usec);
25}
26
27#define udelay(usecs) __udelay(usecs)
28
29#endif /* _ASM_SCORE_DELAY_H */