linux-kernel - [PATCH 7/8] ARM: tegra: Switch to generic SCU routines

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Date:	Tue, 30 Nov 2010 20:17:10 +0300
From:	Anton Vorontsov <avorontsov@...sta.com>
To:	Russell King <linux@....linux.org.uk>
Cc:	Tony Lindgren <tony@...mide.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Colin Cross <ccross@...roid.com>,
	Srinidhi Kasagar <srinidhi.kasagar@...ricsson.com>,
	Jamie Iles <jamie.iles@...ochip.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-omap@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-tegra@...r.kernel.org
Subject: [PATCH 7/8] ARM: tegra: Switch to generic SCU routines

This shrinks platform-specific code a little bit.

Signed-off-by: Anton Vorontsov <avorontsov@...sta.com>
---
 arch/arm/mach-tegra/platsmp.c |   36 ++----------------------------------
 1 files changed, 2 insertions(+), 34 deletions(-)

diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c
index 1c0fd92..bf5433a 100644
--- a/arch/arm/mach-tegra/platsmp.c
+++ b/arch/arm/mach-tegra/platsmp.c
@@ -115,42 +115,10 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
  */
 void __init smp_init_cpus(void)
 {
-	unsigned int i, ncores = scu_get_core_count(scu_base);
-
-	for (i = 0; i < ncores; i++)
-		cpu_set(i, cpu_possible_map);
+	scu_init_cpus(scu_base);
 }
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-	unsigned int ncores = scu_get_core_count(scu_base);
-	unsigned int cpu = smp_processor_id();
-	int i;
-
-	smp_store_cpu_info(cpu);
-
-	/*
-	 * are we trying to boot more cores than exist?
-	 */
-	if (max_cpus > ncores)
-		max_cpus = ncores;
-
-	/*
-	 * Initialise the present map, which describes the set of CPUs
-	 * actually populated at the present time.
-	 */
-	for (i = 0; i < max_cpus; i++)
-		set_cpu_present(i, true);
-
-	/*
-	 * Initialise the SCU if there are more than one CPU and let
-	 * them know where to start. Note that, on modern versions of
-	 * MILO, the "poke" doesn't actually do anything until each
-	 * individual core is sent a soft interrupt to get it out of
-	 * WFI
-	 */
-	if (max_cpus > 1) {
-		percpu_timer_setup();
-		scu_enable(scu_base);
-	}
+	scu_prepare_cpus(scu_base, max_cpus);
 }
-- 
1.7.0.5

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