5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
42 lines
967 B
C
42 lines
967 B
C
// 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 <linux/pgtable.h>
|
|
|
|
#include <asm/smp_plat.h>
|
|
#include <asm/prom.h>
|
|
#include <asm/tlbflush.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,
|
|
};
|