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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-24 03:37:26 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-24 03:37:26 (GMT)
commit2f284c846331fa44be1300a3c2c3e85800268a00 (patch)
treebe2704e6157613bd2cc2a278559a6c86a0b644f4 /arch/arm/plat-versatile/headsmp.S
parent93a72052be81823fa1584b9be037d51924f9efa4 (diff)
parent6f82f4db80189281a8ac42f2e72396accb719b57 (diff)
downloadlinux-2f284c846331fa44be1300a3c2c3e85800268a00.tar.xz
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (35 commits) ARM: Update (and cut down) mach-types ARM: 6771/1: vexpress: add support for multiple core tiles ARM: 6797/1: hw_breakpoint: Fix newlines in WARNings ARM: 6751/1: vexpress: select applicable errata workarounds in Kconfig ARM: 6753/1: omap4: Enable ARM local timers with OMAP4430 es1.0 exception ARM: 6759/1: smp: Select local timers vs broadcast timer support runtime ARM: pgtable: add pud-level code ARM: 6673/1: LPAE: use phys_addr_t instead of unsigned long for start of membanks ARM: Use long long format when printing meminfo physical addresses ARM: integrator: add Integrator/CP sched_clock support ARM: realview/vexpress: consolidate SMP bringup code ARM: realview/vexpress: consolidate localtimer support ARM: integrator/versatile: consolidate FPGA IRQ handling code ARM: rationalize versatile family Kconfig/Makefile ARM: realview: remove old AMBA device DMA definitions ARM: versatile: remove old AMBA device DMA definitions ARM: vexpress: use new init_early for clock tree and sched_clock init ARM: realview: use new init_early for clock tree and sched_clock init ARM: versatile: use new init_early for clock tree and sched_clock init ARM: integrator: use new init_early for clock tree init ...
Diffstat (limited to 'arch/arm/plat-versatile/headsmp.S')
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1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/plat-versatile/headsmp.S b/arch/arm/plat-versatile/headsmp.S
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+++ b/arch/arm/plat-versatile/headsmp.S
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+/*
+ * linux/arch/arm/plat-versatile/headsmp.S
+ *
+ * Copyright (c) 2003 ARM Limited
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+ __INIT
+
+/*
+ * Realview/Versatile Express specific entry point for secondary CPUs.
+ * This provides a "holding pen" into which all secondary cores are held
+ * until we're ready for them to initialise.
+ */
+ENTRY(versatile_secondary_startup)
+ mrc p15, 0, r0, c0, c0, 5
+ and r0, r0, #15
+ adr r4, 1f
+ ldmia r4, {r5, r6}
+ sub r4, r4, r5
+ add r6, r6, r4
+pen: ldr r7, [r6]
+ cmp r7, r0
+ bne pen
+
+ /*
+ * we've been released from the holding pen: secondary_stack
+ * should now contain the SVC stack for this core
+ */
+ b secondary_startup
+
+ .align
+1: .long .
+ .long pen_release