From: Leela Krishna Amudala <l.krishna@samsung.com>
Date: Mon, 10 Jun 2013 09:28:04 +0000 (+0900)
Subject: ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b5f3c75a75d31039c6de3ab38d074b43c60462f7;p=deliverable%2Flinux.git

ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor

This patch reads the cpuid part number and if it matches with
cortex-A9, calls scu_enable()

Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---

diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index a0e8ff7758a4..d9c6d0ab6a0c 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -200,7 +200,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
 {
 	int i;
 
-	if (!(soc_is_exynos5250() || soc_is_exynos5440()))
+	if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9)
 		scu_enable(scu_base_addr());
 
 	/*