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36 lines
992 B
36 lines
992 B
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Entry of the second core for CSR Marco dual-core SMP SoCs |
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* |
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* Copyright (c) 2012 Cambridge Silicon Radio Limited, a CSR plc group company. |
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*/ |
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#include <linux/linkage.h> |
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#include <linux/init.h> |
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/* |
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* SIRFSOC 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(sirfsoc_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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ENDPROC(sirfsoc_secondary_startup) |
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.align |
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1: .long . |
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.long prima2_pen_release
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