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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2b12b5c4ff
This patch adds Samsung S5PV310/S5PC210 CPU support. The S5PV310/S5PC210 integrates a ARM Cortex A9 multi-core. Signed-off-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Jiseong Oh <jiseong.oh@samsung.com> [kgene.kim@samsung.com: fix build errors] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
42 lines
953 B
ArmAsm
42 lines
953 B
ArmAsm
/*
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* linux/arch/arm/mach-s5pv310/headsmp.S
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*
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* Cloned from linux/arch/arm/mach-realview/headsmp.S
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*
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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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* s5pv310 specific entry point for secondary CPUs. This provides
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* a "holding pen" into which all secondary cores are held until we're
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* ready for them to initialise.
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*/
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ENTRY(s5pv310_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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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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