forked from Minki/linux
aa44ef4d43
Adds core support for the ST-Ericsson U8500 platform. It supports memory mappings, binds to the existing modules like GIC, SCU, TWD and local timers and sets up the infrastructure for the secondary core. Reviewed-by: Alessandro Rubini <rubini@unipv.it> Reviewed-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
39 lines
812 B
ArmAsm
39 lines
812 B
ArmAsm
/*
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* Copyright (c) 2009 ST-Ericsson
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* This file is based ARM Realview platform
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* Copyright (c) 2003 ARM Limited
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/linkage.h>
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#include <linux/init.h>
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__INIT
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/*
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* U8500 specific entry point for secondary CPUs.
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*/
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ENTRY(u8500_secondary_startup)
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mrc p15, 0, r0, c0, c0, 5
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and r0, r0, #15
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adr r4, 1f
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ldmia r4, {r5, r6}
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sub r4, r4, r5
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add r6, r6, r4
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dsb
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pen: ldr r7, [r6]
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cmp r7, r0
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bne pen
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/*
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* we've been released from the holding pen: secondary_stack
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* should now contain the SVC stack for this core
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*/
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b secondary_startup
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1: .long .
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.long pen_release
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