diff options
Diffstat (limited to 'arch/arm/mach-shmobile/smp-r8a7779.c')
| -rw-r--r-- | arch/arm/mach-shmobile/smp-r8a7779.c | 78 |
1 files changed, 14 insertions, 64 deletions
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c index c6951ee24588..0ed73b650c14 100644 --- a/arch/arm/mach-shmobile/smp-r8a7779.c +++ b/arch/arm/mach-shmobile/smp-r8a7779.c @@ -1,17 +1,9 @@ +// 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 - * - * 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> @@ -31,59 +23,13 @@ #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) +static int r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle) { - 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; + if (cpu) + ret = rcar_sysc_power_up_cpu(cpu); return ret; } @@ -95,16 +41,20 @@ static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus) /* setup r8a7779 specific SCU bits */ shmobile_smp_scu_prepare_cpus(R8A7779_SCU_BASE, max_cpus); +} - r8a7779_pm_init(); +#ifdef CONFIG_HOTPLUG_CPU +static int r8a7779_platform_cpu_kill(unsigned int cpu) +{ + int ret = -EIO; - /* power off secondary CPUs */ - r8a7779_platform_cpu_kill(1); - r8a7779_platform_cpu_kill(2); - r8a7779_platform_cpu_kill(3); + cpu = cpu_logical_map(cpu); + if (cpu) + ret = rcar_sysc_power_down_cpu(cpu); + + return ret ? ret : 1; } -#ifdef CONFIG_HOTPLUG_CPU static int r8a7779_cpu_kill(unsigned int cpu) { if (shmobile_smp_scu_cpu_kill(cpu)) |