[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/arch/or1k/asm.S b/src/bsp/lk/arch/or1k/asm.S
new file mode 100644
index 0000000..b1643a0
--- /dev/null
+++ b/src/bsp/lk/arch/or1k/asm.S
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2015 Stefan Kristiansson
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <asm.h>
+
+/* void or1k_context_switch(
+ struct or1k_context_switch_frame *oldcs,
+ struct or1k_context_switch_frame *newcs); */
+FUNCTION(or1k_context_switch)
+ /* save old context */
+ l.sw 0(r3), r1
+ l.sw 4(r3), r2
+ l.sw 8(r3), r9
+ l.sw 12(r3), r10
+ l.sw 16(r3), r14
+ l.sw 20(r3), r16
+ l.sw 24(r3), r18
+ l.sw 28(r3), r20
+ l.sw 32(r3), r22
+ l.sw 36(r3), r24
+ l.sw 40(r3), r26
+ l.sw 44(r3), r28
+ l.sw 48(r3), r30
+
+ /* restore new context */
+ l.lwz r30, 48(r4)
+ l.lwz r28, 44(r4)
+ l.lwz r26, 40(r4)
+ l.lwz r24, 36(r4)
+ l.lwz r22, 32(r4)
+ l.lwz r20, 28(r4)
+ l.lwz r18, 24(r4)
+ l.lwz r16, 20(r4)
+ l.lwz r14, 16(r4)
+ l.lwz r10, 12(r4)
+ l.lwz r9, 8(r4)
+ l.lwz r2, 4(r4)
+ l.jr r9
+ l.lwz r1, 0(r4)