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authorMarc Zyngier <marc.zyngier@arm.com>2011-09-08 13:15:22 +0100
committerArnd Bergmann <arnd@arndb.de>2012-09-14 11:14:58 +0200
commit5ac21a943e4052ef6743b09b6a06fbb683a3519d (patch)
treee47d3289d14ebe936ecf720137f0a70b6258b7d7 /arch/arm/mach-ux500/hotplug.c
parent44ea349f5b7e0b4865de9ca6b4437c746eede40c (diff)
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>
Diffstat (limited to 'arch/arm/mach-ux500/hotplug.c')
-rw-r--r--arch/arm/mach-ux500/hotplug.c36
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;
-}