| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_SCORE_DELAY_H |
| #define _ASM_SCORE_DELAY_H |
| |
| #include <asm-generic/param.h> |
| |
| static inline void __delay(unsigned long loops) |
| { |
| /* 3 cycles per loop. */ |
| __asm__ __volatile__ ( |
| "1:\tsubi\t%0, 3\n\t" |
| "cmpz.c\t%0\n\t" |
| "ble\t1b\n\t" |
| : "=r" (loops) |
| : "0" (loops)); |
| } |
| |
| static inline void __udelay(unsigned long usecs) |
| { |
| unsigned long loops_per_usec; |
| |
| loops_per_usec = (loops_per_jiffy * HZ) / 1000000; |
| |
| __delay(usecs * loops_per_usec); |
| } |
| |
| #define udelay(usecs) __udelay(usecs) |
| |
| #endif /* _ASM_SCORE_DELAY_H */ |
