diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-07 14:50:14 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-07 14:50:14 -0800 |
commit | d074b104cefcb6e8ded55a53e62fed59a246f55d (patch) | |
tree | 8c5b3a3992c5abab8b41b6e1f2837bc46f82b207 /arch/arm/mach-shmobile/hotplug.c | |
parent | 31b6ca0af758a88e5e769b48cc6dde037ee37b96 (diff) | |
parent | c413521eb4e2d7ffd5ce432a144708d479054bd3 (diff) |
Merge branch 'rmobile-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'rmobile-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (67 commits)
ARM: mach-shmobile: update for SMP changes.
ARM: mach-shmobile: update for GIC changes.
ARM: mach-shmobile: Fix up clkdev fallout for SH73A0.
dma: shdma: don't register the global die notifier multiple times
ARM: mach-shmobile: Rely on run-time IRQ handlers
ARM: mach-shmobile: Run-time IRQ handler for GIC
ARM: mach-shmobile: Run-time IRQ handler for INTCA
ARM: mach-shmobile: Enable CONFIG_MULTI_IRQ_HANDLER
ARM: mach-shmobile: Use shared GIC entry macros
ARM: mach-shmobile: mackerel: Add zboot support
ARM: mach-shmobile: mackerel: Add HDMI sound support
ARM: mach-shmobile: mackerel: add HDMI video support
ARM: mach-shmobile: ap4evb: fixup clk_put timing of fsib_clk
ARM: mach-shmobile: sh73a0: fix div4 table
ARM: mach-shmobile: ap4/mackerel: modify wrong comment out of USB
ARM: mach-shmobile: Mackerel VGA camera support
mmc: sh_mmcif: make DMA support by the driver unconditional
ARM: mach-shmobile: Add eMMC support through MMCIF on AG5EVM
ARM: mach-shmobile: Use pullups for AG5EVM KEYSC pins
ARM: mach-shmobile: sh73a0 GPIO pullup improvement
...
Diffstat (limited to 'arch/arm/mach-shmobile/hotplug.c')
-rw-r--r-- | arch/arm/mach-shmobile/hotplug.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/hotplug.c b/arch/arm/mach-shmobile/hotplug.c new file mode 100644 index 00000000000..238a0d97d2d --- /dev/null +++ b/arch/arm/mach-shmobile/hotplug.c @@ -0,0 +1,41 @@ +/* + * SMP support for R-Mobile / SH-Mobile + * + * Copyright (C) 2010 Magnus Damm + * + * Based on realview, Copyright (C) 2002 ARM Ltd, 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/kernel.h> +#include <linux/errno.h> +#include <linux/smp.h> + +int platform_cpu_kill(unsigned int cpu) +{ + return 1; +} + +void platform_cpu_die(unsigned int cpu) +{ + while (1) { + /* + * here's the WFI + */ + asm(".word 0xe320f003\n" + : + : + : "memory", "cc"); + } +} + +int platform_cpu_disable(unsigned int cpu) +{ + /* + * we don't allow CPU 0 to be shutdown (it is still too special + * e.g. clock tick interrupts) + */ + return cpu == 0 ? -EPERM : 0; +} |