2 * Secondary CPU startup routine source file.
4 * Copyright (C) 2009 Texas Instruments, Inc.
7 * Santosh Shilimkar <santosh.shilimkar@ti.com>
9 * Interface functions needed for the SMP. This file is based on arm
10 * realview smp platform.
11 * Copyright (c) 2003 ARM Limited.
13 * This program is free software,you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
18 #include <linux/linkage.h>
19 #include <linux/init.h>
21 /* Physical address needed since MMU not enabled yet on secondary core */
22 #define OMAP4_AUX_CORE_BOOT1_PA 0x48281804
27 * OMAP4 specific entry point for secondary CPU to jump from ROM
28 * code. This routine also provides a holding flag into which
29 * secondary core is held until we're ready for it to initialise.
30 * The primary core will update this flag using a hardware
31 * register AuxCoreBoot0.
33 ENTRY(omap_secondary_startup)
36 smc #0 @ read from AuxCoreBoot0
38 mrc p15, 0, r4, c0, c0, 5
44 * we've been released from the wait loop,secondary_stack
45 * should now contain the SVC stack for this core
48 END(omap_secondary_startup)