From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 13 Jun 2011 14:28:53 +0000 (+0100)
Subject: ARM: 6960/1: allow enabling SCU code on UP
X-Git-Tag: accepted/tizen/common/20141203.182822~6713^2~1^6~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=10cdc7e5129ac26aefece4c7a7d5b1a0285237c2;p=platform%2Fkernel%2Flinux-arm64.git

ARM: 6960/1: allow enabling SCU code on UP

The scu_power_mode function can be used on UP builds as it drives signals
to an SOC power controller. So make it selectable for !SMP.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index cd8f520..84fda2b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1349,7 +1349,6 @@ config SMP_ON_UP
 
 config HAVE_ARM_SCU
 	bool
-	depends on SMP
 	help
 	  This option enables support for the ARM system coherency unit
 
diff --git a/arch/arm/kernel/smp_scu.c b/arch/arm/kernel/smp_scu.c
index a1e757c..79ed5e7 100644
--- a/arch/arm/kernel/smp_scu.c
+++ b/arch/arm/kernel/smp_scu.c
@@ -20,6 +20,7 @@
 #define SCU_INVALIDATE		0x0c
 #define SCU_FPGA_REVISION	0x10
 
+#ifdef CONFIG_SMP
 /*
  * Get the number of CPU cores from the SCU configuration
  */
@@ -50,6 +51,7 @@ void __init scu_enable(void __iomem *scu_base)
 	 */
 	flush_cache_all();
 }
+#endif
 
 /*
  * Set the executing CPUs power mode as defined.  This will be in