| /* |
| * 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 "pm-rcar.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 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); |
| |
| /* turn on power to SCU */ |
| r8a7790_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 |
| }; |