1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Keystone SOC SMP platform code
4 *
5 * Copyright 2013 Texas Instruments, Inc.
6 *	Cyril Chemparathy <cyril@ti.com>
7 *	Santosh Shilimkar <santosh.shillimkar@ti.com>
8 *
9 * Based on platsmp.c, Copyright (C) 2002 ARM Ltd.
10 */
11
12#include <linux/init.h>
13#include <linux/smp.h>
14#include <linux/io.h>
15#include <linux/pgtable.h>
16
17#include <asm/smp_plat.h>
18#include <asm/prom.h>
19#include <asm/tlbflush.h>
20
21#include "keystone.h"
22
23static int keystone_smp_boot_secondary(unsigned int cpu,
24						struct task_struct *idle)
25{
26	unsigned long start = virt_to_idmap(&secondary_startup);
27	int error;
28
29	pr_debug("keystone-smp: booting cpu %d, vector %08lx\n",
30		 cpu, start);
31
32	error = keystone_cpu_smc(KEYSTONE_MON_CPU_UP_IDX, cpu, start);
33	if (error)
34		pr_err("CPU %d bringup failed with %d\n", cpu, error);
35
36	return error;
37}
38
39const struct smp_operations keystone_smp_ops __initconst = {
40	.smp_boot_secondary	= keystone_smp_boot_secondary,
41};
42