- Update to 2.6.25-rc3.

[linux-flexiantxendom0-3.2.10.git] / arch / sh / kernel / timers / timer-cmt.c

diff --git a/arch/sh/kernel/timers/timer-cmt.c b/arch/sh/kernel/timers/timer-cmt.c
index 82de689..7131232 100644 (file)
--- a/arch/sh/kernel/timers/timer-cmt.c
+++ b/arch/sh/kernel/timers/timer-cmt.c
@@ -31,7 +31,9 @@
 #define cmt_clock_enable() do {        ctrl_outb(ctrl_inb(STBCR3) & ~0x10, STBCR3); } while(0)
 #define CMT_CMCSR_INIT 0x0040
 #define CMT_CMCSR_CALIB        0x0000
-#elif defined(CONFIG_CPU_SUBTYPE_SH7206)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7203) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7206) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7263)
 #define CMT_CMSTR      0xfffec000
 #define CMT_CMCSR_0    0xfffec002
 #define CMT_CMCNT_0    0xfffec004
@@ -98,16 +100,7 @@ static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id)
        timer_status &= ~0x80;
        ctrl_outw(timer_status, CMT_CMCSR_0);
 
-       /*
-        * Here we are in the timer irq handler. We just have irqs locally
-        * disabled but we don't know if the timer_bh is running on the other
-        * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
-        * the irq version of write_lock because as just said we have irq
-        * locally disabled. -arca
-        */
-       write_seqlock(&xtime_lock);
        handle_timer_tick();
-       write_sequnlock(&xtime_lock);
 
        return IRQ_HANDLED;
 }