1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * Entry of the second core for CSR Marco dual-core SMP SoCs 4 * 5 * Copyright (c) 2012 Cambridge Silicon Radio Limited, a CSR plc group company. 6 */ 7 8#include <linux/linkage.h> 9#include <linux/init.h> 10 11#include <asm/assembler.h> 12 13/* 14 * SIRFSOC specific entry point for secondary CPUs. This provides 15 * a "holding pen" into which all secondary cores are held until we're 16 * ready for them to initialise. 17 */ 18ENTRY(sirfsoc_secondary_startup) 19 mrc p15, 0, r0, c0, c0, 5 20 and r0, r0, #15 21 adr_l r6, prima2_pen_release 22pen: ldr r7, [r6] 23 cmp r7, r0 24 bne pen 25 26 /* 27 * we've been released from the holding pen: secondary_stack 28 * should now contain the SVC stack for this core 29 */ 30 b secondary_startup 31ENDPROC(sirfsoc_secondary_startup) 32