1/* 2 * Entry of the second core for CSR Marco dual-core SMP SoCs 3 * 4 * Copyright (c) 2012 Cambridge Silicon Radio Limited, a CSR plc group company. 5 * 6 * Licensed under GPLv2 or later. 7 */ 8 9#include <linux/linkage.h> 10#include <linux/init.h> 11 12/* 13 * SIRFSOC specific entry point for secondary CPUs. This provides 14 * a "holding pen" into which all secondary cores are held until we're 15 * ready for them to initialise. 16 */ 17ENTRY(sirfsoc_secondary_startup) 18 mrc p15, 0, r0, c0, c0, 5 19 and r0, r0, #15 20 adr r4, 1f 21 ldmia r4, {r5, r6} 22 sub r4, r4, r5 23 add r6, r6, r4 24pen: ldr r7, [r6] 25 cmp r7, r0 26 bne pen 27 28 /* 29 * we've been released from the holding pen: secondary_stack 30 * should now contain the SVC stack for this core 31 */ 32 b secondary_startup 33ENDPROC(sirfsoc_secondary_startup) 34 35 .align 361: .long . 37 .long pen_release 38