blackfin: smp: cleanup smp code

move idle task point to percpu blackfin_cpudata and add smp_timer_broadcast
interface.
enable SUPPLE_1_WAKEUP and add BFIN_IPI_TIMER ipi support.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

1 files changed, 25 insertions, 1 deletions

diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 1bcf3a3c57d8..6efd944a2f33 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -219,7 +219,7 @@ static void __init bfin_gptmr0_clockevent_init(struct clock_event_device *evt)
 
 #if defined(CONFIG_TICKSOURCE_CORETMR)
 /* per-cpu local core timer */
-static DEFINE_PER_CPU(struct clock_event_device, coretmr_events);
+DEFINE_PER_CPU(struct clock_event_device, coretmr_events);
 
 static int bfin_coretmr_set_next_event(unsigned long cycles,
                                 struct clock_event_device *evt)
@@ -281,6 +281,25 @@ void bfin_coretmr_init(void)
 #ifdef CONFIG_CORE_TIMER_IRQ_L1
 __attribute__((l1_text))
 #endif
+
+static void broadcast_timer_set_mode(enum clock_event_mode mode,
+                struct clock_event_device *evt)
+{
+}
+
+static void __cpuinit broadcast_timer_setup(struct clock_event_device *evt)
+{
+        evt->name       = "dummy_timer";
+        evt->features   = CLOCK_EVT_FEAT_ONESHOT |
+                CLOCK_EVT_FEAT_PERIODIC |
+                CLOCK_EVT_FEAT_DUMMY;
+        evt->rating     = 400;
+        evt->mult       = 1;
+        evt->set_mode   = broadcast_timer_set_mode;
+
+        clockevents_register_device(evt);
+}
+
 irqreturn_t bfin_coretmr_interrupt(int irq, void *dev_id)
 {
         int cpu = smp_processor_id();
@@ -306,6 +325,11 @@ void bfin_coretmr_clockevent_init(void)
         unsigned int cpu = smp_processor_id();
         struct clock_event_device *evt = &per_cpu(coretmr_events, cpu);
 
+#ifdef CONFIG_SMP
+        evt->broadcast = smp_timer_broadcast;
+#endif
+
+
         evt->name = "bfin_core_timer";
         evt->rating = 350;
         evt->irq = -1;