Blackfin: convert SMP to only use generic time framework

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index f1a7969..c56fd3e 100644 (file)
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -223,6 +223,7 @@ endchoice
 
 config SMP
        depends on BF561
+       select GENERIC_TIME
        bool "Symmetric multi-processing support"
        ---help---
          This enables support for systems with more than one CPU,

diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c
index daa02d4..adb54aa 100644 (file)
--- a/arch/blackfin/kernel/time.c
+++ b/arch/blackfin/kernel/time.c
@@ -24,14 +24,10 @@
 
 static struct irqaction bfin_timer_irq = {
        .name = "Blackfin Timer Tick",
-#ifdef CONFIG_IRQ_PER_CPU
-       .flags = IRQF_DISABLED | IRQF_PERCPU,
-#else
        .flags = IRQF_DISABLED
-#endif
 };
 
-#if defined(CONFIG_TICKSOURCE_GPTMR0) || defined(CONFIG_IPIPE)
+#if defined(CONFIG_IPIPE)
 void __init setup_system_timer0(void)
 {
        /* Power down the core timer, just to play safe. */
@@ -74,7 +70,7 @@ void __init setup_core_timer(void)
 static void __init
 time_sched_init(irqreturn_t(*timer_routine) (int, void *))
 {
-#if defined(CONFIG_TICKSOURCE_GPTMR0) || defined(CONFIG_IPIPE)
+#if defined(CONFIG_IPIPE)
        setup_system_timer0();
        bfin_timer_irq.handler = timer_routine;
        setup_irq(IRQ_TIMER0, &bfin_timer_irq);
@@ -94,7 +90,7 @@ static unsigned long gettimeoffset(void)
        unsigned long offset;
        unsigned long clocks_per_jiffy;
 
-#if defined(CONFIG_TICKSOURCE_GPTMR0) || defined(CONFIG_IPIPE)
+#if defined(CONFIG_IPIPE)
        clocks_per_jiffy = bfin_read_TIMER0_PERIOD();
        offset = bfin_read_TIMER0_COUNTER() / \
                (((clocks_per_jiffy + 1) * HZ) / USEC_PER_SEC);
@@ -133,36 +129,25 @@ irqreturn_t timer_interrupt(int irq, void *dummy)
        static long last_rtc_update;
 
        write_seqlock(&xtime_lock);
-#if defined(CONFIG_TICKSOURCE_GPTMR0) && !defined(CONFIG_IPIPE)
+       do_timer(1);
+
        /*
-        * TIMIL0 is latched in __ipipe_grab_irq() when the I-Pipe is
-        * enabled.
+        * If we have an externally synchronized Linux clock, then update
+        * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
+        * called as close as possible to 500 ms before the new second starts.
         */
-       if (get_gptimer_status(0) & TIMER_STATUS_TIMIL0) {
-#endif
-               do_timer(1);
-
-               /*
-                * If we have an externally synchronized Linux clock, then update
-                * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
-                * called as close as possible to 500 ms before the new second starts.
-                */
-               if (ntp_synced() &&
-                   xtime.tv_sec > last_rtc_update + 660 &&
-                   (xtime.tv_nsec / NSEC_PER_USEC) >=
-                   500000 - ((unsigned)TICK_SIZE) / 2
-                   && (xtime.tv_nsec / NSEC_PER_USEC) <=
-                   500000 + ((unsigned)TICK_SIZE) / 2) {
-                       if (set_rtc_mmss(xtime.tv_sec) == 0)
-                               last_rtc_update = xtime.tv_sec;
-                       else
-                               /* Do it again in 60s. */
-                               last_rtc_update = xtime.tv_sec - 600;
-               }
-#if defined(CONFIG_TICKSOURCE_GPTMR0) && !defined(CONFIG_IPIPE)
-               set_gptimer_status(0, TIMER_STATUS_TIMIL0);
+       if (ntp_synced() &&
+           xtime.tv_sec > last_rtc_update + 660 &&
+           (xtime.tv_nsec / NSEC_PER_USEC) >=
+           500000 - ((unsigned)TICK_SIZE) / 2
+           && (xtime.tv_nsec / NSEC_PER_USEC) <=
+           500000 + ((unsigned)TICK_SIZE) / 2) {
+               if (set_rtc_mmss(xtime.tv_sec) == 0)
+                       last_rtc_update = xtime.tv_sec;
+               else
+                       /* Do it again in 60s. */
+                       last_rtc_update = xtime.tv_sec - 600;
        }
-#endif
        write_sequnlock(&xtime_lock);
 
 #ifdef CONFIG_IPIPE