projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| f07cb6a0 SS |
1 | /* |
| 2 | * Keystone SOC SMP platform code | |
| 3 | * | |
| 4 | * Copyright 2013 Texas Instruments, Inc. | |
| 5 | * Cyril Chemparathy <cyril@ti.com> | |
| 6 | * Santosh Shilimkar <santosh.shillimkar@ti.com> | |
| 7 | * | |
| 8 | * Based on platsmp.c, Copyright (C) 2002 ARM Ltd. | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify it | |
| 11 | * under the terms and conditions of the GNU General Public License, | |
| 12 | * version 2, as published by the Free Software Foundation. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/init.h> | |
| 16 | #include <linux/smp.h> | |
| 17 | #include <linux/io.h> | |
| 18 | ||
| 19 | #include <asm/smp_plat.h> | |
| f07cb6a0 SS |
20 | |
| 21 | #include "keystone.h" | |
| 22 | ||
| 8bd26e3a | 23 | static int keystone_smp_boot_secondary(unsigned int cpu, |
| f07cb6a0 SS |
24 | struct task_struct *idle) |
| 25 | { | |
| 26 | unsigned long start = virt_to_phys(&secondary_startup); | |
| 27 | int error; | |
| 28 | ||
| 29 | pr_debug("keystone-smp: booting cpu %d, vector %08lx\n", | |
| 30 | cpu, start); | |
| 31 | ||
| 3aae7ab0 SS |
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); | |
| f07cb6a0 SS |
35 | |
| 36 | return error; | |
| 37 | } | |
| 38 | ||
| 39 | struct smp_operations keystone_smp_ops __initdata = { | |
| f07cb6a0 SS |
40 | .smp_boot_secondary = keystone_smp_boot_secondary, |
| 41 | }; |