[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/powerpc/sysdev/6xx-suspend.S b/src/kernel/linux/v4.14/arch/powerpc/sysdev/6xx-suspend.S
new file mode 100644
index 0000000..cf48e9c
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/powerpc/sysdev/6xx-suspend.S
@@ -0,0 +1,52 @@
+/*
+ * Enter and leave sleep state on chips with 6xx-style HID0
+ * power management bits, which don't leave sleep state via reset.
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ *
+ * Copyright (c) 2006-2007 Freescale Semiconductor, Inc.
+ *
+ * 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.
+ */
+
+#include <asm/ppc_asm.h>
+#include <asm/reg.h>
+#include <asm/thread_info.h>
+#include <asm/asm-offsets.h>
+
+_GLOBAL(mpc6xx_enter_standby)
+ mflr r4
+
+ mfspr r5, SPRN_HID0
+ rlwinm r5, r5, 0, ~(HID0_DOZE | HID0_NAP)
+ oris r5, r5, HID0_SLEEP@h
+ mtspr SPRN_HID0, r5
+ isync
+
+ lis r5, ret_from_standby@h
+ ori r5, r5, ret_from_standby@l
+ mtlr r5
+
+ CURRENT_THREAD_INFO(r5, r1)
+ lwz r6, TI_LOCAL_FLAGS(r5)
+ ori r6, r6, _TLF_SLEEPING
+ stw r6, TI_LOCAL_FLAGS(r5)
+
+ mfmsr r5
+ ori r5, r5, MSR_EE
+ oris r5, r5, MSR_POW@h
+ sync
+ mtmsr r5
+ isync
+
+1: b 1b
+
+ret_from_standby:
+ mfspr r5, SPRN_HID0
+ rlwinm r5, r5, 0, ~HID0_SLEEP
+ mtspr SPRN_HID0, r5
+
+ mtlr r4
+ blr