145f5984aSGregory CLEMENT/* 245f5984aSGregory CLEMENT * SMP support: Entry point for secondary CPUs 345f5984aSGregory CLEMENT * 445f5984aSGregory CLEMENT * Copyright (C) 2012 Marvell 545f5984aSGregory CLEMENT * 645f5984aSGregory CLEMENT * Yehuda Yitschak <yehuday@marvell.com> 745f5984aSGregory CLEMENT * Gregory CLEMENT <gregory.clement@free-electrons.com> 845f5984aSGregory CLEMENT * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 945f5984aSGregory CLEMENT * 1045f5984aSGregory CLEMENT * This file is licensed under the terms of the GNU General Public 1145f5984aSGregory CLEMENT * License version 2. This program is licensed "as is" without any 1245f5984aSGregory CLEMENT * warranty of any kind, whether express or implied. 1345f5984aSGregory CLEMENT * 1445f5984aSGregory CLEMENT * This file implements the assembly entry point for secondary CPUs in 1545f5984aSGregory CLEMENT * an SMP kernel. The only thing we need to do is to add the CPU to 1645f5984aSGregory CLEMENT * the coherency fabric by writing to 2 registers. Currently the base 1745f5984aSGregory CLEMENT * register addresses are hard coded due to the early initialisation 1845f5984aSGregory CLEMENT * problems. 1945f5984aSGregory CLEMENT */ 2045f5984aSGregory CLEMENT 2145f5984aSGregory CLEMENT#include <linux/linkage.h> 2245f5984aSGregory CLEMENT#include <linux/init.h> 2345f5984aSGregory CLEMENT 24bca028e7SBen Dooks#include <asm/assembler.h> 25bca028e7SBen Dooks 2645f5984aSGregory CLEMENT/* 2745f5984aSGregory CLEMENT * Armada XP specific entry point for secondary CPUs. 2845f5984aSGregory CLEMENT * We add the CPU to the coherency fabric and then jump to secondary 2945f5984aSGregory CLEMENT * startup 3045f5984aSGregory CLEMENT */ 3145f5984aSGregory CLEMENTENTRY(armada_xp_secondary_startup) 32bca028e7SBen Dooks ARM_BE8(setend be ) @ go BE8 if entered LE 33bca028e7SBen Dooks 342e8a5942SGregory CLEMENT bl ll_add_cpu_to_smp_group 352e8a5942SGregory CLEMENT 362e8a5942SGregory CLEMENT bl ll_enable_coherency 372e8a5942SGregory CLEMENT 3845f5984aSGregory CLEMENT b secondary_startup 3945f5984aSGregory CLEMENT 4045f5984aSGregory CLEMENTENDPROC(armada_xp_secondary_startup) 41