[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-shmobile/smp-r8a7779.c b/src/kernel/linux/v4.14/arch/arm/mach-shmobile/smp-r8a7779.c
new file mode 100644
index 0000000..c6951ee
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -0,0 +1,124 @@
+/*
+ * SMP support for R-Mobile / SH-Mobile - r8a7779 portion
+ *
+ * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2011 Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/soc/renesas/rcar-sysc.h>
+
+#include <asm/cacheflush.h>
+#include <asm/smp_plat.h>
+#include <asm/smp_scu.h>
+
+#include "common.h"
+#include "r8a7779.h"
+
+#define AVECR IOMEM(0xfe700040)
+#define R8A7779_SCU_BASE 0xf0000000
+
+static const struct rcar_sysc_ch r8a7779_ch_cpu1 = {
+ .chan_offs = 0x40, /* PWRSR0 .. PWRER0 */
+ .chan_bit = 1, /* ARM1 */
+ .isr_bit = 1, /* ARM1 */
+};
+
+static const struct rcar_sysc_ch r8a7779_ch_cpu2 = {
+ .chan_offs = 0x40, /* PWRSR0 .. PWRER0 */
+ .chan_bit = 2, /* ARM2 */
+ .isr_bit = 2, /* ARM2 */
+};
+
+static const struct rcar_sysc_ch r8a7779_ch_cpu3 = {
+ .chan_offs = 0x40, /* PWRSR0 .. PWRER0 */
+ .chan_bit = 3, /* ARM3 */
+ .isr_bit = 3, /* ARM3 */
+};
+
+static const struct rcar_sysc_ch * const r8a7779_ch_cpu[4] = {
+ [1] = &r8a7779_ch_cpu1,
+ [2] = &r8a7779_ch_cpu2,
+ [3] = &r8a7779_ch_cpu3,
+};
+
+static int r8a7779_platform_cpu_kill(unsigned int cpu)
+{
+ const struct rcar_sysc_ch *ch = NULL;
+ int ret = -EIO;
+
+ cpu = cpu_logical_map(cpu);
+
+ if (cpu < ARRAY_SIZE(r8a7779_ch_cpu))
+ ch = r8a7779_ch_cpu[cpu];
+
+ if (ch)
+ ret = rcar_sysc_power_down(ch);
+
+ return ret ? ret : 1;
+}
+
+static int r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+ const struct rcar_sysc_ch *ch = NULL;
+ unsigned int lcpu = cpu_logical_map(cpu);
+ int ret;
+
+ if (lcpu < ARRAY_SIZE(r8a7779_ch_cpu))
+ ch = r8a7779_ch_cpu[lcpu];
+
+ if (ch)
+ ret = rcar_sysc_power_up(ch);
+ else
+ ret = -EIO;
+
+ return ret;
+}
+
+static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus)
+{
+ /* Map the reset vector (in headsmp-scu.S, headsmp.S) */
+ __raw_writel(__pa(shmobile_boot_vector), AVECR);
+
+ /* setup r8a7779 specific SCU bits */
+ shmobile_smp_scu_prepare_cpus(R8A7779_SCU_BASE, max_cpus);
+
+ r8a7779_pm_init();
+
+ /* power off secondary CPUs */
+ r8a7779_platform_cpu_kill(1);
+ r8a7779_platform_cpu_kill(2);
+ r8a7779_platform_cpu_kill(3);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static int r8a7779_cpu_kill(unsigned int cpu)
+{
+ if (shmobile_smp_scu_cpu_kill(cpu))
+ return r8a7779_platform_cpu_kill(cpu);
+
+ return 0;
+}
+#endif /* CONFIG_HOTPLUG_CPU */
+
+const struct smp_operations r8a7779_smp_ops __initconst = {
+ .smp_prepare_cpus = r8a7779_smp_prepare_cpus,
+ .smp_boot_secondary = r8a7779_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+ .cpu_die = shmobile_smp_scu_cpu_die,
+ .cpu_kill = r8a7779_cpu_kill,
+#endif
+};