[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/arch/arm/mach-shmobile/smp-r8a7779.c b/src/kernel/linux/v4.19/arch/arm/mach-shmobile/smp-r8a7779.c
new file mode 100644
index 0000000..0ed73b6
--- /dev/null
+++ b/src/kernel/linux/v4.19/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * SMP support for R-Mobile / SH-Mobile - r8a7779 portion
+ *
+ * Copyright (C) 2011 Renesas Solutions Corp.
+ * Copyright (C) 2011 Magnus Damm
+ */
+#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 int r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+ int ret = -EIO;
+
+ cpu = cpu_logical_map(cpu);
+ if (cpu)
+ ret = rcar_sysc_power_up_cpu(cpu);
+
+ 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);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+static int r8a7779_platform_cpu_kill(unsigned int cpu)
+{
+ int ret = -EIO;
+
+ cpu = cpu_logical_map(cpu);
+ if (cpu)
+ ret = rcar_sysc_power_down_cpu(cpu);
+
+ return ret ? ret : 1;
+}
+
+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
+};