[U-Boot-Users] [PATCH] memcpy32 support at ARM

[Kyungmin Park <kmpark@infradead.org>]

[PATCH] memcpy32 support at ARM

It is used at OneNAND driver

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
diff --git a/lib_arm/Makefile b/lib_arm/Makefile
index 037c475..e1258f4 100644
--- a/lib_arm/Makefile
+++ b/lib_arm/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(ARCH).a
 
-SOBJS	= _ashldi3.o _ashrdi3.o _divsi3.o _modsi3.o _udivsi3.o _umodsi3.o
+SOBJS	= _ashldi3.o _ashrdi3.o _divsi3.o _modsi3.o _udivsi3.o _umodsi3.o _memcpy32.o
 
 COBJS	= armlinux.o board.o \
 	  cache.o div0.o
diff --git a/lib_arm/_memcpy32.S b/lib_arm/_memcpy32.S
new file mode 100644
index 0000000..d1ba36f
--- /dev/null
+++ b/lib_arm/_memcpy32.S
@@ -0,0 +1,24 @@
+/*
+ *  Copyright (C) 2005-2007 Samsung Electronics
+ *  Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ */
+	.text
+
+	.global memcpy32
+	.align 0
+memcpy32:
+	mov	ip, sp
+	stmfd	sp!, {r0, r4 - r9, fp, ip, lr, pc}
+	sub	fp, ip, #4
+1:
+	ldmia	r1!, {r3 - r9, ip}
+	subges	r2, r2, #32
+	stmgeia	r0!, {r3 - r9, ip}
+	bge	1b
+2:
+	ldmea	fp, {r0, r4 - r9, fp, sp, pc}