[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-tegra/hotplug.c b/src/kernel/linux/v4.14/arch/arm/mach-tegra/hotplug.c
new file mode 100644
index 0000000..8ec7078
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-tegra/hotplug.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2002 ARM Ltd.
+ * All Rights Reserved
+ * Copyright (c) 2010, 2012-2013, NVIDIA Corporation. All rights reserved.
+ *
+ * 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/clk/tegra.h>
+#include <linux/kernel.h>
+#include <linux/smp.h>
+
+#include <soc/tegra/common.h>
+#include <soc/tegra/fuse.h>
+
+#include <asm/smp_plat.h>
+
+#include "common.h"
+#include "sleep.h"
+
+static void (*tegra_hotplug_shutdown)(void);
+
+int tegra_cpu_kill(unsigned cpu)
+{
+ cpu = cpu_logical_map(cpu);
+
+ /* Clock gate the CPU */
+ tegra_wait_cpu_in_reset(cpu);
+ tegra_disable_cpu_clock(cpu);
+
+ return 1;
+}
+
+/*
+ * platform-specific code to shutdown a CPU
+ *
+ * Called with IRQs disabled
+ */
+void tegra_cpu_die(unsigned int cpu)
+{
+ if (!tegra_hotplug_shutdown) {
+ WARN(1, "hotplug is not yet initialized\n");
+ return;
+ }
+
+ /* Clean L1 data cache */
+ tegra_disable_clean_inv_dcache(TEGRA_FLUSH_CACHE_LOUIS);
+
+ /* Shut down the current CPU. */
+ tegra_hotplug_shutdown();
+
+ /* Should never return here. */
+ BUG();
+}
+
+static int __init tegra_hotplug_init(void)
+{
+ if (!IS_ENABLED(CONFIG_HOTPLUG_CPU))
+ return 0;
+
+ if (!soc_is_tegra())
+ return 0;
+
+ if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC) && tegra_get_chip_id() == TEGRA20)
+ tegra_hotplug_shutdown = tegra20_hotplug_shutdown;
+ if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) && tegra_get_chip_id() == TEGRA30)
+ tegra_hotplug_shutdown = tegra30_hotplug_shutdown;
+ if (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) && tegra_get_chip_id() == TEGRA114)
+ tegra_hotplug_shutdown = tegra30_hotplug_shutdown;
+ if (IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC) && tegra_get_chip_id() == TEGRA124)
+ tegra_hotplug_shutdown = tegra30_hotplug_shutdown;
+
+ return 0;
+}
+pure_initcall(tegra_hotplug_init);