[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 2
The attached patches provides part 2 of an architecture implementation for the
Tensilica Xtensa CPU series.
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/xtensa/boot/lib/memcpy.S b/arch/xtensa/boot/lib/memcpy.S
new file mode 100644
index 0000000..a029f5d
--- /dev/null
+++ b/arch/xtensa/boot/lib/memcpy.S
@@ -0,0 +1,36 @@
+/*
+ * arch/xtensa/lib/memcpy.S
+ *
+ * ANSI C standard library function memcpy
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of
+ * this archive for more details.
+ *
+ * Copyright (C) 2002 Tensilica Inc.
+ */
+
+#define _ASMLANGUAGE
+#include <xtensa/config/core.h>
+
+.text
+.align 4
+.global bcopy
+.type bcopy,@function
+bcopy:
+ movi a14, xthal_bcopy // a14 safe to use regardless of whether caller
+ // used call4 or call8 (can't have used call12)
+ jx a14 // let the Core HAL do the work
+
+.text
+.align 4
+.global memcpy
+.type memcpy,@function
+memcpy:
+.global memmove
+.type memmove,@function
+memmove:
+ movi a14, xthal_memcpy // a14 safe to use regardless of whether caller
+ // used call4 or call8 (can't have used call12)
+ jx a14 // let the Core HAL do the work
+