linux-kernel - [PATCH 3/6] arm: zynq: Add support for zynq_cpu

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Date:	Thu, 31 Oct 2013 09:10:16 -0700
From:	Soren Brinkmann <soren.brinkmann@...inx.com>
To:	Michal Simek <michal.simek@...inx.com>,
	Russell King <linux@....linux.org.uk>
Cc:	Sören Brinkmann <soren.brinkmann@...inx.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 3/6] arm: zynq: Add support for zynq_cpu_kill function

From: Michal Simek <michal.simek@...inx.com>

Use simple hook to slcr to stop cpu.

Signed-off-by: Michal Simek <michal.simek@...inx.com>
---
 arch/arm/mach-zynq/platsmp.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c
index daed70682c54..4f592a7efc10 100644
--- a/arch/arm/mach-zynq/platsmp.c
+++ b/arch/arm/mach-zynq/platsmp.c
@@ -126,11 +126,20 @@ static void __init zynq_smp_prepare_cpus(unsigned int max_cpus)
 	scu_enable(zynq_scu_base);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+static int zynq_cpu_kill(unsigned cpu)
+{
+	zynq_slcr_cpu_stop(cpu);
+	return 1;
+}
+#endif
+
 struct smp_operations zynq_smp_ops __initdata = {
 	.smp_init_cpus		= zynq_smp_init_cpus,
 	.smp_prepare_cpus	= zynq_smp_prepare_cpus,
 	.smp_boot_secondary	= zynq_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
 	.cpu_die		= zynq_platform_cpu_die,
+	.cpu_kill		= zynq_cpu_kill,
 #endif
 };
-- 
1.8.4.1

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