Initial import

1 files changed, 71 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/smp-r8a7790.c b/arch/arm/mach-shmobile/smp-r8a7790.c
new file mode 100644
index 000000000..930f45cbc
--- /dev/null
+++ b/arch/arm/mach-shmobile/smp-r8a7790.c
@@ -0,0 +1,71 @@
+/*
+ * SMP support for r8a7790
+ *
+ * Copyright (C) 2012-2013 Renesas Solutions Corp.
+ * Copyright (C) 2012 Takashi Yoshii <takashi.yoshii.ze@renesas.com>
+ *
+ * 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/io.h>
+
+#include <asm/smp_plat.h>
+
+#include "common.h"
+#include "platsmp-apmu.h"
+#include "pm-rcar.h"
+#include "rcar-gen2.h"
+#include "r8a7790.h"
+
+static struct rcar_sysc_ch r8a7790_ca15_scu = {
+	.chan_offs = 0x180, /* PWRSR5 .. PWRER5 */
+	.isr_bit = 12, /* CA15-SCU */
+};
+
+static struct rcar_sysc_ch r8a7790_ca7_scu = {
+	.chan_offs = 0x100, /* PWRSR3 .. PWRER3 */
+	.isr_bit = 21, /* CA7-SCU */
+};
+
+static struct rcar_apmu_config r8a7790_apmu_config[] = {
+	{
+		.iomem = DEFINE_RES_MEM(0xe6152000, 0x188),
+		.cpus = { 0, 1, 2, 3 },
+	},
+	{
+		.iomem = DEFINE_RES_MEM(0xe6151000, 0x188),
+		.cpus = { 0x100, 0x0101, 0x102, 0x103 },
+	}
+};
+
+static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus)
+{
+	/* let APMU code install data related to shmobile_boot_vector */
+	shmobile_smp_apmu_prepare_cpus(max_cpus,
+				       r8a7790_apmu_config,
+				       ARRAY_SIZE(r8a7790_apmu_config));
+
+	/* turn on power to SCU */
+	rcar_gen2_pm_init();
+	rcar_sysc_power_up(&r8a7790_ca15_scu);
+	rcar_sysc_power_up(&r8a7790_ca7_scu);
+}
+
+struct smp_operations r8a7790_smp_ops __initdata = {
+	.smp_prepare_cpus	= r8a7790_smp_prepare_cpus,
+	.smp_boot_secondary	= shmobile_smp_apmu_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+	.cpu_disable		= shmobile_smp_cpu_disable,
+	.cpu_die		= shmobile_smp_apmu_cpu_die,
+	.cpu_kill		= shmobile_smp_apmu_cpu_kill,
+#endif
+};