1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/lib/io-writesl.S b/arch/arm/lib/io-writesl.S
new file mode 100644
index 000000000000..f8f14dd227ca
--- /dev/null
+++ b/arch/arm/lib/io-writesl.S
@@ -0,0 +1,66 @@
+/*
+ *  linux/arch/arm/lib/io-writesl.S
+ *
+ *  Copyright (C) 1995-2000 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>
+ENTRY(__raw_writesl)
+                teq     r2, #0          @ do we have to check for the zero len?
+                moveq   pc, lr
+                ands    ip, r1, #3
+                bne     3f
+                subs    r2, r2, #4
+                bmi     2f
+                stmfd   sp!, {r4, lr}
+1:              ldmia   r1!, {r3, r4, ip, lr}
+                subs    r2, r2, #4
+                str     r3, [r0, #0]
+                str     r4, [r0, #0]
+                str     ip, [r0, #0]
+                str     lr, [r0, #0]
+                bpl     1b
+                ldmfd   sp!, {r4, lr}
+2:              movs    r2, r2, lsl #31
+                ldmcsia r1!, {r3, ip}
+                strcs   r3, [r0, #0]
+                ldrne   r3, [r1, #0]
+                strcs   ip, [r0, #0]
+                strne   r3, [r0, #0]
+                mov     pc, lr
+3:              bic     r1, r1, #3
+                ldr     r3, [r1], #4
+                cmp     ip, #2
+                blt     5f
+                bgt     6f
+4:              mov     ip, r3, pull #16
+                ldr     r3, [r1], #4
+                subs    r2, r2, #1
+                orr     ip, ip, r3, push #16
+                str     ip, [r0]
+                bne     4b
+                mov     pc, lr
+5:              mov     ip, r3, pull #8
+                ldr     r3, [r1], #4
+                subs    r2, r2, #1
+                orr     ip, ip, r3, push #24
+                str     ip, [r0]
+                bne     5b
+                mov     pc, lr
+6:              mov     ip, r3, pull #24
+                ldr     r3, [r1], #4
+                subs    r2, r2, #1
+                orr     ip, ip, r3, push #8
+                str     ip, [r0]
+                bne     6b
+                mov     pc, lr

diff --git a/arch/arm/lib/io-writesl.S b/arch/arm/lib/io-writesl.S new file mode 100644 index 000000000000..f8f14dd227ca --- /dev/null +++ b/arch/arm/lib/io-writesl.S
@@ -0,0 +1,66 @@
	1	/*
	2	* linux/arch/arm/lib/io-writesl.S
	3	*
	4	* Copyright (C) 1995-2000 Russell King
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*/
	10	#include <linux/linkage.h>
	11	#include <asm/assembler.h>
	12
	13	ENTRY(__raw_writesl)
	14	teq r2, #0 @ do we have to check for the zero len?
	15	moveq pc, lr
	16	ands ip, r1, #3
	17	bne 3f
	18
	19	subs r2, r2, #4
	20	bmi 2f
	21	stmfd sp!, {r4, lr}
	22	1: ldmia r1!, {r3, r4, ip, lr}
	23	subs r2, r2, #4
	24	str r3, [r0, #0]
	25	str r4, [r0, #0]
	26	str ip, [r0, #0]
	27	str lr, [r0, #0]
	28	bpl 1b
	29	ldmfd sp!, {r4, lr}
	30	2: movs r2, r2, lsl #31
	31	ldmcsia r1!, {r3, ip}
	32	strcs r3, [r0, #0]
	33	ldrne r3, [r1, #0]
	34	strcs ip, [r0, #0]
	35	strne r3, [r0, #0]
	36	mov pc, lr
	37
	38	3: bic r1, r1, #3
	39	ldr r3, [r1], #4
	40	cmp ip, #2
	41	blt 5f
	42	bgt 6f
	43
	44	4: mov ip, r3, pull #16
	45	ldr r3, [r1], #4
	46	subs r2, r2, #1
	47	orr ip, ip, r3, push #16
	48	str ip, [r0]
	49	bne 4b
	50	mov pc, lr
	51
	52	5: mov ip, r3, pull #8
	53	ldr r3, [r1], #4
	54	subs r2, r2, #1
	55	orr ip, ip, r3, push #24
	56	str ip, [r0]
	57	bne 5b
	58	mov pc, lr
	59
	60	6: mov ip, r3, pull #24
	61	ldr r3, [r1], #4
	62	subs r2, r2, #1
	63	orr ip, ip, r3, push #8
	64	str ip, [r0]
	65	bne 6b
	66	mov pc, lr