ARM: SoC: convert spear13xx to SMP operations

Convert the spear13xx platform to use struct smp_operations to provide
its SMP and CPU hotplug operations.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: spear-devel@list.st.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 3 insertions, 17 deletions

diff --git a/arch/arm/mach-spear13xx/hotplug.c b/arch/arm/mach-spear13xx/hotplug.c
index 5c6867b46d09..485fd4367bb1 100644
--- a/arch/arm/mach-spear13xx/hotplug.c
+++ b/arch/arm/mach-spear13xx/hotplug.c
@@ -56,7 +56,7 @@ static inline void cpu_leave_lowpower(void)
         : "cc");
 }
 
-static inline void platform_do_lowpower(unsigned int cpu, int *spurious)
+static inline void spear13xx_do_lowpower(unsigned int cpu, int *spurious)
 {
         for (;;) {
                 wfi();
@@ -79,17 +79,12 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious)
         }
 }
 
-int platform_cpu_kill(unsigned int cpu)
-{
-        return 1;
-}
-
 /*
  * platform-specific code to shutdown a CPU
  *
  * Called with IRQs disabled
  */
-void __cpuinit platform_cpu_die(unsigned int cpu)
+void __ref spear13xx_cpu_die(unsigned int cpu)
 {
         int spurious = 0;
 
@@ -97,7 +92,7 @@ void __cpuinit platform_cpu_die(unsigned int cpu)
          * we're ready for shutdown now, so do it
          */
         cpu_enter_lowpower();
-        platform_do_lowpower(cpu, &spurious);
+        spear13xx_do_lowpower(cpu, &spurious);
 
         /*
          * bring this CPU back into the world of cache
@@ -108,12 +103,3 @@ void __cpuinit platform_cpu_die(unsigned int cpu)
         if (spurious)
                 pr_warn("CPU%u: %u spurious wakeup calls\n", cpu, spurious);
 }
-
-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;
-}