[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-omap2/omap-hotplug.c b/src/kernel/linux/v4.14/arch/arm/mach-omap2/omap-hotplug.c
new file mode 100644
index 0000000..433db6d
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-omap2/omap-hotplug.c
@@ -0,0 +1,72 @@
+/*
+ * OMAP4 SMP cpu-hotplug support
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc.
+ * Author:
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * Platform file needed for the OMAP4 SMP. This file is based on arm
+ * realview smp platform.
+ * Copyright (c) 2002 ARM Limited.
+ *
+ * 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 <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+
+#include "omap-wakeupgen.h"
+#include "common.h"
+#include "powerdomain.h"
+
+/*
+ * platform-specific code to shutdown a CPU
+ * Called with IRQs disabled
+ */
+void omap4_cpu_die(unsigned int cpu)
+{
+ unsigned int boot_cpu = 0;
+ void __iomem *base = omap_get_wakeupgen_base();
+
+ /*
+ * we're ready for shutdown now, so do it
+ */
+ if (omap_secure_apis_support()) {
+ if (omap_modify_auxcoreboot0(0x0, 0x200) != 0x0)
+ pr_err("Secure clear status failed\n");
+ } else {
+ writel_relaxed(0, base + OMAP_AUX_CORE_BOOT_0);
+ }
+
+
+ for (;;) {
+ /*
+ * Enter into low power state
+ */
+ omap4_hotplug_cpu(cpu, PWRDM_POWER_OFF);
+
+ if (omap_secure_apis_support())
+ boot_cpu = omap_read_auxcoreboot0() >> 9;
+ else
+ boot_cpu =
+ readl_relaxed(base + OMAP_AUX_CORE_BOOT_0) >> 5;
+
+ if (boot_cpu == smp_processor_id()) {
+ /*
+ * OK, proper wakeup, we're done
+ */
+ break;
+ }
+ pr_debug("CPU%u: spurious wakeup call\n", cpu);
+ }
+}
+
+/* Needed by kexec and platform_can_cpu_hotplug() */
+int omap4_cpu_kill(unsigned int cpu)
+{
+ return 1;
+}