diff options
Diffstat (limited to 'arch/cris/include/arch-v32/arch/delay.h')
| -rw-r--r-- | arch/cris/include/arch-v32/arch/delay.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/cris/include/arch-v32/arch/delay.h b/arch/cris/include/arch-v32/arch/delay.h new file mode 100644 index 000000000000..e9fda03810a9 --- /dev/null +++ b/arch/cris/include/arch-v32/arch/delay.h @@ -0,0 +1,28 @@ +#ifndef _ASM_CRIS_ARCH_DELAY_H +#define _ASM_CRIS_ARCH_DELAY_H + +extern void cris_delay10ns(u32 n10ns); +#define udelay(u) cris_delay10ns((u)*100) +#define ndelay(n) cris_delay10ns(((n)+9)/10) + +/* + * Not used anymore for udelay or ndelay. Referenced by + * e.g. init/calibrate.c. All other references are likely bugs; + * should be replaced by mdelay, udelay or ndelay. + */ + +static inline void +__delay(int loops) +{ + __asm__ __volatile__ ( + "move.d %0, $r9\n\t" + "beq 2f\n\t" + "subq 1, $r9\n\t" + "1:\n\t" + "bne 1b\n\t" + "subq 1, $r9\n" + "2:" + : : "g" (loops) : "r9"); +} + +#endif /* _ASM_CRIS_ARCH_DELAY_H */ |