1#ifndef _PARISC_DELAY_H
2#define _PARISC_DELAY_H
3
4#include <asm/system.h>
5#include <asm/processor.h>
6
7
8
9
10
11
12
13
14static __inline__ void __delay(unsigned long loops) {
15 asm volatile(
16 " .balignl 64,0x34000034\n"
17 " addib,UV -1,%0,.\n"
18 " nop\n"
19 : "=r" (loops) : "0" (loops));
20}
21
22static __inline__ void __cr16_delay(unsigned long clocks) {
23 unsigned long start;
24
25
26
27
28
29
30
31
32 start = mfctl(16);
33 while ((mfctl(16) - start) < clocks)
34 ;
35}
36
37static __inline__ void __udelay(unsigned long usecs) {
38 __cr16_delay(usecs * ((unsigned long)boot_cpu_data.cpu_hz / 1000000UL));
39}
40
41#define udelay(n) __udelay(n)
42
43#endif
44