| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Keystone SOC SMP platform code |
| * |
| * Copyright 2013 Texas Instruments, Inc. |
| * Cyril Chemparathy <cyril@ti.com> |
| * Santosh Shilimkar <santosh.shillimkar@ti.com> |
| * |
| * Based on platsmp.c, Copyright (C) 2002 ARM Ltd. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/smp.h> |
| #include <linux/io.h> |
| |
| #include <asm/smp_plat.h> |
| #include <asm/prom.h> |
| #include <asm/tlbflush.h> |
| #include <asm/pgtable.h> |
| |
| #include "keystone.h" |
| |
| static int keystone_smp_boot_secondary(unsigned int cpu, |
| struct task_struct *idle) |
| { |
| unsigned long start = virt_to_idmap(&secondary_startup); |
| int error; |
| |
| pr_debug("keystone-smp: booting cpu %d, vector %08lx\n", |
| cpu, start); |
| |
| error = keystone_cpu_smc(KEYSTONE_MON_CPU_UP_IDX, cpu, start); |
| if (error) |
| pr_err("CPU %d bringup failed with %d\n", cpu, error); |
| |
| return error; |
| } |
| |
| const struct smp_operations keystone_smp_ops __initconst = { |
| .smp_boot_secondary = keystone_smp_boot_secondary, |
| }; |
