diff options
Diffstat (limited to 'arch/arm/lib/delay.S')
| -rw-r--r-- | arch/arm/lib/delay.S | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/arch/arm/lib/delay.S b/arch/arm/lib/delay.S deleted file mode 100644 index 3c9a05c8d20..00000000000 --- a/arch/arm/lib/delay.S +++ /dev/null @@ -1,69 +0,0 @@ -/* - * linux/arch/arm/lib/delay.S - * - * Copyright (C) 1995, 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/linkage.h> -#include <asm/assembler.h> -#include <asm/param.h> - .text - -.LC0: .word loops_per_jiffy -.LC1: .word (2199023*HZ)>>11 - -/* - * r0 <= 2000 - * lpj <= 0x01ffffff (max. 3355 bogomips) - * HZ <= 1000 - */ - -ENTRY(__udelay) - ldr r2, .LC1 - mul r0, r2, r0 -ENTRY(__const_udelay) @ 0 <= r0 <= 0x7fffff06 - mov r1, #-1 - ldr r2, .LC0 - ldr r2, [r2] @ max = 0x01ffffff - add r0, r0, r1, lsr #32-14 - mov r0, r0, lsr #14 @ max = 0x0001ffff - add r2, r2, r1, lsr #32-10 - mov r2, r2, lsr #10 @ max = 0x00007fff - mul r0, r2, r0 @ max = 2^32-1 - add r0, r0, r1, lsr #32-6 - movs r0, r0, lsr #6 - moveq pc, lr - -/* - * loops = r0 * HZ * loops_per_jiffy / 1000000 - * - * Oh, if only we had a cycle counter... - */ - -@ Delay routine -ENTRY(__delay) - subs r0, r0, #1 -#if 0 - movls pc, lr - subs r0, r0, #1 - movls pc, lr - subs r0, r0, #1 - movls pc, lr - subs r0, r0, #1 - movls pc, lr - subs r0, r0, #1 - movls pc, lr - subs r0, r0, #1 - movls pc, lr - subs r0, r0, #1 - movls pc, lr - subs r0, r0, #1 -#endif - bhi __delay - mov pc, lr -ENDPROC(__udelay) -ENDPROC(__const_udelay) -ENDPROC(__delay) |