blob: 503ac777a2ba8682b35f0798eccd80f3f8621763 [file] [log] [blame]
* Secondary CPU startup routine source file.
* Copyright (C) 2009 Texas Instruments, Inc.
* Author:
* Santosh Shilimkar <>
* Interface functions needed for the SMP. This file is based on arm
* realview smp platform.
* Copyright (c) 2003 ARM Limited.
* This program is free software,you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
#include <linux/linkage.h>
#include <linux/init.h>
* OMAP4 specific entry point for secondary CPU to jump from ROM
* code. This routine also provides a holding flag into which
* secondary core is held until we're ready for it to initialise.
* The primary core will update this flag using a hardware
* register AuxCoreBoot0.
hold: ldr r12,=0x103
smc #0 @ read from AuxCoreBoot0
mov r0, r0, lsr #9
mrc p15, 0, r4, c0, c0, 5
and r4, r4, #0x0f
cmp r0, r4
bne hold
* we've been released from the wait loop,secondary_stack
* should now contain the SVC stack for this core
b secondary_startup