[ARM PATCH] 1537/1: big-endian support for do_div64

Patch from Deepak Saxena

arch/arm/lib/div64.S

 #include <linux/linkage.h>
 
+#ifndef __ARMEB__
 ql	.req	r0			@ quotient low
 qh	.req	r1			@ quotient high
-dl	.req	r3			@ divisor low
-dh	.req	r2			@ divisor high
+onl	.req	r0			@ original dividend low
+onh	.req	r1			@ original dividend high
 nl	.req	r4			@ dividend low
 nh	.req	r5			@ dividend high
+res	.req	r4			@ result
+#else
+ql	.req	r1
+qh	.req	r0
+onl	.req	r1
+onh	.req	r0
+nl	.req	r5
+nh	.req	r4
+res	.req	r5
+#endif
+
+dl	.req	r3			@ divisor low
+dh	.req	r2			@ divsor high
+
 
 ENTRY(do_div64)
 	stmfd	sp!, {r4, r5, lr}
-	mov	nl, r0
-	movs	nh, r1			@ if high bits are zero
+	mov	nl, onl
+	movs	nh, onh			@ if high bits are zero
 	movne	lr, #33
 	moveq	lr, #1			@ only divide low bits
-	moveq	nh, r0
+	moveq	nh, onl
 
 1:	cmp	nh, dh
 	bls	2f
 	add	lr, lr, #1
-	movs	dh, dh, lsl #1		@ left justify divisor
+	movs	dh, dh, lsl #1		@ left justify disor
 	bpl	1b
 
-2:	movs	nh, r1
+2:	movs	nh, onh
 	moveq	dl, dh
 	moveq	dh, #0
 	movne	dl, #0
@@ -38,5 +53,5 @@ ENTRY(do_div64)
 	subs	lr, lr, #1
 	bne	3b
 
-	mov	r2, nl
+	mov	r2, res
 	ldmfd	sp!, {r4, r5, pc}