diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-06 12:25:11 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-06 12:25:11 -0800 |
commit | 534baf55dd16d5de9c8d045190469eef9d31ffff (patch) | |
tree | a32ca9cf98cf4a9d1f483e274c41cd8cf32b5664 /arch/arm/mach-exynos/headsmp.S | |
parent | ddf8a0d385979065af7be086a4b89b6a645fe340 (diff) | |
parent | 830145796a5c8f1ca3f87ea619063c1d99a57df5 (diff) |
Merge branch 'next/move' of git://git.linaro.org/people/arnd/arm-soc
* 'next/move' of git://git.linaro.org/people/arnd/arm-soc:
ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynos
ARM: EXYNOS4: convert MCT to percpu interrupt API
ARM: SAMSUNG: Add clk enable/disable of pwm
ARM: SAMSUNG: Fix compile error due to kfree
Diffstat (limited to 'arch/arm/mach-exynos/headsmp.S')
-rw-r--r-- | arch/arm/mach-exynos/headsmp.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/headsmp.S b/arch/arm/mach-exynos/headsmp.S new file mode 100644 index 000000000000..3cdeb3647542 --- /dev/null +++ b/arch/arm/mach-exynos/headsmp.S @@ -0,0 +1,41 @@ +/* + * linux/arch/arm/mach-exynos4/headsmp.S + * + * Cloned from linux/arch/arm/mach-realview/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> + + __CPUINIT + +/* + * exynos4 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(exynos4_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 + +1: .long . + .long pen_release |