1 files changed, 16 insertions, 103 deletions
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c
index fde0d23121d..9ebc246b8d7 100644
--- a/arch/arm/mach-shmobile/platsmp.c
+++ b/arch/arm/mach-shmobile/platsmp.c
@@ -11,115 +11,28 @@
  * published by the Free Software Foundation.
  */
 #include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/smp.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <asm/hardware/gic.h>
-#include <asm/mach-types.h>
+#include <asm/cacheflush.h>
+#include <asm/smp_plat.h>
 #include <mach/common.h>
-#include <mach/emev2.h>
 
-#ifdef CONFIG_ARCH_SH73A0
-#define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \
-			of_machine_is_compatible("renesas,sh73a0"))
-#else
-#define is_sh73a0() (0)
-#endif
-
-#define is_r8a7779() machine_is_marzen()
-
-#ifdef CONFIG_ARCH_EMEV2
-#define is_emev2() of_machine_is_compatible("renesas,emev2")
-#else
-#define is_emev2() (0)
-#endif
-
-static unsigned int __init shmobile_smp_get_core_count(void)
-{
-	if (is_sh73a0())
-		return sh73a0_get_core_count();
-
-	if (is_r8a7779())
-		return r8a7779_get_core_count();
-
-	if (is_emev2())
-		return emev2_get_core_count();
-
-	return 1;
-}
+extern unsigned long shmobile_smp_fn[];
+extern unsigned long shmobile_smp_arg[];
+extern unsigned long shmobile_smp_mpidr[];
 
-static void __init shmobile_smp_prepare_cpus(void)
+void shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg)
 {
-	if (is_sh73a0())
-		sh73a0_smp_prepare_cpus();
-
-	if (is_r8a7779())
-		r8a7779_smp_prepare_cpus();
+	shmobile_smp_fn[cpu] = 0;
+	flush_cache_all();
 
-	if (is_emev2())
-		emev2_smp_prepare_cpus();
+	shmobile_smp_mpidr[cpu] = cpu_logical_map(cpu);
+	shmobile_smp_fn[cpu] = fn;
+	shmobile_smp_arg[cpu] = arg;
+	flush_cache_all();
 }
 
-int shmobile_platform_cpu_kill(unsigned int cpu)
+#ifdef CONFIG_HOTPLUG_CPU
+int shmobile_smp_cpu_disable(unsigned int cpu)
 {
-	if (is_r8a7779())
-		return r8a7779_platform_cpu_kill(cpu);
-
-	if (is_emev2())
-		return emev2_platform_cpu_kill(cpu);
-
-	return 1;
-}
-
-void __cpuinit platform_secondary_init(unsigned int cpu)
-{
-	trace_hardirqs_off();
-
-	if (is_sh73a0())
-		sh73a0_secondary_init(cpu);
-
-	if (is_r8a7779())
-		r8a7779_secondary_init(cpu);
-
-	if (is_emev2())
-		emev2_secondary_init(cpu);
-}
-
-int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
-{
-	if (is_sh73a0())
-		return sh73a0_boot_secondary(cpu);
-
-	if (is_r8a7779())
-		return r8a7779_boot_secondary(cpu);
-
-	if (is_emev2())
-		return emev2_boot_secondary(cpu);
-
-	return -ENOSYS;
-}
-
-void __init smp_init_cpus(void)
-{
-	unsigned int ncores = shmobile_smp_get_core_count();
-	unsigned int i;
-
-	if (ncores > nr_cpu_ids) {
-		pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
-			ncores, nr_cpu_ids);
-		ncores = nr_cpu_ids;
-	}
-
-	for (i = 0; i < ncores; i++)
-		set_cpu_possible(i, true);
-
-	set_smp_cross_call(gic_raise_softirq);
-}
-
-void __init platform_smp_prepare_cpus(unsigned int max_cpus)
-{
-	shmobile_smp_prepare_cpus();
+	return 0; /* Hotplug of any CPU is supported */
 }
+#endif