1 files changed, 24 insertions, 0 deletions

diff --git a/arch/avr32/lib/io-readsl.S b/arch/avr32/lib/io-readsl.S
new file mode 100644
index 000000000000..b103511ed6c4
--- /dev/null
+++ b/arch/avr32/lib/io-readsl.S
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * 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.
+ */
+
+        .global __raw_readsl
+        .type   __raw_readsl,@function
+__raw_readsl:
+        cp.w    r10, 0
+        reteq   r12
+
+        /*
+         * If r11 isn't properly aligned, we might get an exception on
+         * some implementations. But there's not much we can do about it.
+         */
+1:      ld.w    r8, r12[0]
+        sub     r10, 1
+        st.w    r11++, r8
+        brne    1b
+
+        retal   r12