/* *  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>		.text.LC0:		.word	loops_per_jiffy/* * 0 <= r0 <= 2000 */ENTRY(__udelay)		mov	r2,     #0x6800		orr	r2, r2, #0x00db		mul	r0, r2, r0ENTRY(__const_udelay)				@ 0 <= r0 <= 0x01ffffff		ldr	r2, .LC0		ldr	r2, [r2]		@ max = 0x0fffffff		mov	r0, r0, lsr #11		@ max = 0x00003fff		mov	r2, r2, lsr #11		@ max = 0x0003ffff		mul	r0, r2, r0		@ max = 2^32-1		movs	r0, r0, lsr #6		RETINSTR(moveq,pc,lr)/* * loops = (r0 * 0x10c6 * 100 * loops_per_jiffy) / 2^32 * * Oh, if only we had a cycle counter... */@ Delay routineENTRY(__delay)		subs	r0, r0, #1#if 0		RETINSTR(movls,pc,lr)		subs	r0, r0, #1		RETINSTR(movls,pc,lr)		subs	r0, r0, #1		RETINSTR(movls,pc,lr)		subs	r0, r0, #1		RETINSTR(movls,pc,lr)		subs	r0, r0, #1		RETINSTR(movls,pc,lr)		subs	r0, r0, #1		RETINSTR(movls,pc,lr)		subs	r0, r0, #1		RETINSTR(movls,pc,lr)		subs	r0, r0, #1#endif		bhi	__delay		RETINSTR(mov,pc,lr)