ARM: SoC: convert ux500 to SMP operations

Convert ux500 platforms to use struct smp_operations to provide
their SMP and CPU hotplug operations.

Cc: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 9 insertions, 27 deletions

diff --git a/arch/arm/mach-ux500/hotplug.c b/arch/arm/mach-ux500/hotplug.c
index c76f0f456f04..b8e4d9ed62d8 100644
--- a/arch/arm/mach-ux500/hotplug.c
+++ b/arch/arm/mach-ux500/hotplug.c
@@ -15,13 +15,20 @@
 #include <asm/cacheflush.h>
 #include <asm/smp_plat.h>
 
+#include <mach/setup.h>
+
 extern volatile int pen_release;
 
-static inline void platform_do_lowpower(unsigned int cpu)
+/*
+ * platform-specific code to shutdown a CPU
+ *
+ * Called with IRQs disabled
+ */
+void __ref ux500_cpu_die(unsigned int cpu)
 {
 	flush_cache_all();
 
-	/* we put the platform to just WFI */
+	/* directly enter low power state, skipping secure registers */
 	for (;;) {
 		__asm__ __volatile__("dsb\n\t" "wfi\n\t"
 				: : : "memory");
@@ -33,28 +40,3 @@ static inline void platform_do_lowpower(unsigned int cpu)
 		}
 	}
 }
-
-int platform_cpu_kill(unsigned int cpu)
-{
-	return 1;
-}
-
-/*
- * platform-specific code to shutdown a CPU
- *
- * Called with IRQs disabled
- */
-void platform_cpu_die(unsigned int cpu)
-{
-	/* directly enter low power state, skipping secure registers */
-	platform_do_lowpower(cpu);
-}
-
-int platform_cpu_disable(unsigned int cpu)
-{
-	/*
-	 * we don't allow CPU 0 to be shutdown (it is still too special
-	 * e.g. clock tick interrupts)
-	 */
-	return cpu == 0 ? -EPERM : 0;
-}