1 /* 2 * SMP support: Entry point for secondary CPUs 3 * 4 * Copyright (C) 2012 Marvell 5 * 6 * Yehuda Yitschak <yehuday@marvell.com> 7 * Gregory CLEMENT <gregory.clement@free-electrons.com> 8 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 9 * 10 * This file is licensed under the terms of the GNU General Public 11 * License version 2. This program is licensed "as is" without any 12 * warranty of any kind, whether express or implied. 13 * 14 * This file implements the assembly entry point for secondary CPUs in 15 * an SMP kernel. The only thing we need to do is to add the CPU to 16 * the coherency fabric by writing to 2 registers. Currently the base 17 * register addresses are hard coded due to the early initialisation 18 * problems. 19 */ 20 21 #include <linux/linkage.h> 22 #include <linux/init.h> 23 24 #include <asm/assembler.h> 25 26 /* 27 * Armada XP specific entry point for secondary CPUs. 28 * We add the CPU to the coherency fabric and then jump to secondary 29 * startup 30 */ 31 ENTRY(armada_xp_secondary_startup) 32 ARM_BE8(setend be ) @ go BE8 if entered LE 33 34 bl ll_add_cpu_to_smp_group 35 36 bl ll_enable_coherency 37 38 b secondary_startup 39 40 ENDPROC(armada_xp_secondary_startup)