From 32e2b55eec7116a859b384dbcc4b52a54a156869 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Wed, 7 Nov 2007 09:31:06 -0600 Subject: [POWERPC] pasemi: Move cpus to hold loop before restart Use smp_send_stop() to move all cpus besides the one executing reboot into a hold loop, to keep them from being in powersavings mode at the time of reboot. Signed-off-by: Olof Johansson --- arch/powerpc/platforms/pasemi/setup.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/powerpc') diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c index bd85853bc9da..2b638659d1ea 100644 --- a/arch/powerpc/platforms/pasemi/setup.c +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -43,6 +43,10 @@ #include "pasemi.h" +#if !defined(CONFIG_SMP) +static void smp_send_stop(void) {} +#endif + /* SDC reset register, must be pre-mapped at reset time */ static void __iomem *reset_reg; @@ -60,6 +64,9 @@ static int num_mce_regs; static void pas_restart(char *cmd) { + /* Need to put others cpu in hold loop so they're not sleeping */ + smp_send_stop(); + udelay(10000); printk("Restarting...\n"); while (1) out_le32(reset_reg, 0x6000000); -- cgit v1.2.1