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- /*
- * Secondary CPU startup routine source file.
- *
- * Copyright (C) 2009 Texas Instruments, Inc.
- *
- * Author:
- * Santosh Shilimkar <santosh.shilimkar@ti.com>
- *
- * 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>
- /* Physical address needed since MMU not enabled yet on secondary core */
- #define OMAP4_AUX_CORE_BOOT1_PA 0x48281804
- __INIT
- /*
- * 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 the this flag using a hardware
- * register AuxCoreBoot1.
- */
- ENTRY(omap_secondary_startup)
- mrc p15, 0, r0, c0, c0, 5
- and r0, r0, #0x0f
- hold: ldr r1, =OMAP4_AUX_CORE_BOOT1_PA @ read from AuxCoreBoot1
- ldr r2, [r1]
- cmp r2, r0
- bne hold
- /*
- * we've been released from the cpu_release,secondary_stack
- * should now contain the SVC stack for this core
- */
- b secondary_startup
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