/* * SMP support for R-Mobile / SH-Mobile * * Copyright (C) 2010 Magnus Damm * Copyright (C) 2011 Paul Mundt * * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/init.h> #include <linux/errno.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/smp.h> #include <linux/io.h> #include <asm/localtimer.h> #include <asm/mach-types.h> #include <mach/common.h> static unsigned int __init shmobile_smp_get_core_count(void) { if (machine_is_ag5evm()) return sh73a0_get_core_count(); return 1; } static void __init shmobile_smp_prepare_cpus(void) { if (machine_is_ag5evm()) sh73a0_smp_prepare_cpus(); } void __cpuinit platform_secondary_init(unsigned int cpu) { trace_hardirqs_off(); if (machine_is_ag5evm()) sh73a0_secondary_init(cpu); } int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) { if (machine_is_ag5evm()) return sh73a0_boot_secondary(cpu); return -ENOSYS; } void __init smp_init_cpus(void) { unsigned int ncores = shmobile_smp_get_core_count(); unsigned int i; for (i = 0; i < ncores; i++) set_cpu_possible(i, true); } void __init platform_smp_prepare_cpus(unsigned int max_cpus) { int i; for (i = 0; i < max_cpus; i++) set_cpu_present(i, true); shmobile_smp_prepare_cpus(); }