mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 04:42:12 +00:00
3aae7ab0f1
Because of inline asm usage in platsmp.c, smc instruction creates build failure for ARM V6+V7 build where as using instruction encoding for smc breaks the thumb2 build. So move the code snippet to separate asm file and mark it with 'armv7-a$(plus_sec)' to avoid any build issues. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <asm/smp_plat.h>
|
|
#include <asm/prom.h>
|
|
|
|
#include "keystone.h"
|
|
|
|
static int __cpuinit keystone_smp_boot_secondary(unsigned int cpu,
|
|
struct task_struct *idle)
|
|
{
|
|
unsigned long start = virt_to_phys(&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;
|
|
}
|
|
|
|
struct smp_operations keystone_smp_ops __initdata = {
|
|
.smp_init_cpus = arm_dt_init_cpu_maps,
|
|
.smp_boot_secondary = keystone_smp_boot_secondary,
|
|
};
|