[PATCH] [POWERPC] pasemi: Move cpus to hold loop before restart

Olof Johansson olof at lixom.net
Thu Nov 8 02:41:30 EST 2007

[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 <olof at lixom.net>

diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index bd85853..14dace7 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -60,6 +60,9 @@ 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);
 	while (1)
 		out_le32(reset_reg, 0x6000000);

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