[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/arch/x86/ops.S b/src/bsp/lk/arch/x86/ops.S
new file mode 100644
index 0000000..32a098c
--- /dev/null
+++ b/src/bsp/lk/arch/x86/ops.S
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2009 Corey Tabaka
+ *
+ * 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>
+
+.text
+
+/* int _atomic_and(int *ptr, int val); */
+FUNCTION(_atomic_and)
+ movl 4(%esp), %edx
+ movl (%edx), %eax
+0:
+ movl %eax, %ecx
+ andl 8(%esp), %ecx
+ lock
+ cmpxchgl %ecx, (%edx)
+ jnz 1f /* static prediction: branch forward not taken */
+ ret
+1:
+ jmp 0b
+
+
+/* int _atomic_or(int *ptr, int val); */
+FUNCTION(_atomic_or)
+movl 4(%esp), %edx
+ movl (%edx), %eax
+0:
+ movl %eax, %ecx
+ orl 8(%esp), %ecx
+ lock
+ cmpxchgl %ecx, (%edx)
+ jnz 1f /* static prediction: branch forward not taken */
+ ret
+1:
+ jmp 0b
+
+/* void arch_idle(); */
+FUNCTION(arch_idle)
+ pushf
+ popl %eax
+ andl $0x200, %eax
+ test %eax, %eax
+ je 1f /* don't halt if local interrupts are disabled */
+ hlt
+1:
+ ret
+