diff options
Diffstat (limited to 'include/asm-blackfin/delay.h')
| -rw-r--r-- | include/asm-blackfin/delay.h | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/include/asm-blackfin/delay.h b/include/asm-blackfin/delay.h deleted file mode 100644 index 52e7a10d7ff..00000000000 --- a/include/asm-blackfin/delay.h +++ /dev/null @@ -1,44 +0,0 @@ -#ifndef _BLACKFIN_DELAY_H -#define _BLACKFIN_DELAY_H - -static inline void __delay(unsigned long loops) -{ - -/* FIXME: Currently the assembler doesn't recognize Loop Register Clobbers, - uncomment this as soon those are implemented */ -/* - __asm__ __volatile__ ( "\t LSETUP (1f,1f) LC0= %0\n\t" - "1:\t NOP;\n\t" - : :"a" (loops) - : "LT0","LB0","LC0"); - -*/ - - __asm__ __volatile__("[--SP] = LC0;\n\t" - "[--SP] = LT0;\n\t" - "[--SP] = LB0;\n\t" - "LSETUP (1f,1f) LC0 = %0;\n\t" - "1:\t NOP;\n\t" - "LB0 = [SP++];\n\t" - "LT0 = [SP++];\n\t" - "LC0 = [SP++];\n" - : - :"a" (loops)); -} - -#include <linux/param.h> /* needed for HZ */ - -/* - * Use only for very small delays ( < 1 msec). Should probably use a - * lookup table, really, as the multiplications take much too long with - * short delays. This is a "reasonable" implementation, though (and the - * first constant multiplications gets optimized away if the delay is - * a constant) - */ -static inline void udelay(unsigned long usecs) -{ - extern unsigned long loops_per_jiffy; - __delay(usecs * loops_per_jiffy / (1000000 / HZ)); -} - -#endif /* defined(_BLACKFIN_DELAY_H) */ |