1 files changed, 0 insertions, 97 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap2-git/beagleboard/02-gptimer_use_match_for_tick b/meta/recipes-kernel/linux/linux-omap2-git/beagleboard/02-gptimer_use_match_for_tick
deleted file mode 100644
index 6eb6c9b47..000000000
--- a/meta/recipes-kernel/linux/linux-omap2-git/beagleboard/02-gptimer_use_match_for_tick
+++ /dev/null
@@ -1,97 +0,0 @@
-OMAP2/3 system tick GPTIMER: use match interrupts rather than overflow interrupts
-
-From: Paul Walmsley <paul@pwsan.com>
-
-On some OMAP3 chips, GPTIMER1 will occasionally decline to interrupt
-the MPU when a timer overflow event occurs.  The timer stops running;
-and TOCR is sometimes incremented; but the MPU apparently never receives
-the interrupt.  This patch was an experiment in using the GPTIMER
-match interrupt to determine if it resolves the problem.
-Unfortunately, it does not; the same problem occurs with match
-interrupts; but this patch is preserved as the base for a
-match+overflow interrupt workaround used in a following patch.
----
-
- arch/arm/mach-omap2/timer-gp.c |   32 ++++++++++----------------------
- 1 files changed, 10 insertions(+), 22 deletions(-)
-
-diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
-index 557603f..51996ba 100644
---- a/arch/arm/mach-omap2/timer-gp.c
-+++ b/arch/arm/mach-omap2/timer-gp.c
-@@ -36,6 +36,8 @@
- #include <asm/mach/time.h>
- #include <asm/arch/dmtimer.h>
- 
-+#define GPTIMER_MATCH_VAL      0xffff0000
-+
- static struct omap_dm_timer *gptimer;
- static struct clock_event_device clockevent_gpt;
- 
-@@ -44,7 +46,7 @@ static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
- 	struct omap_dm_timer *gpt = (struct omap_dm_timer *)dev_id;
- 	struct clock_event_device *evt = &clockevent_gpt;
- 
--	omap_dm_timer_write_status(gpt, OMAP_TIMER_INT_OVERFLOW);
-+	omap_dm_timer_write_status(gpt, OMAP_TIMER_INT_MATCH);
- 
- 	evt->event_handler(evt);
- 	return IRQ_HANDLED;
-@@ -59,7 +61,7 @@ static struct irqaction omap2_gp_timer_irq = {
- static int omap2_gp_timer_set_next_event(unsigned long cycles,
- 					 struct clock_event_device *evt)
- {
--	omap_dm_timer_set_load_start(gptimer, 0, 0xffffffff - cycles);
-+	omap_dm_timer_set_load_start(gptimer, 0, GPTIMER_MATCH_VAL - cycles);
- 
- 	return 0;
- }
-@@ -67,29 +69,12 @@ static int omap2_gp_timer_set_next_event(unsigned long cycles,
- static void omap2_gp_timer_set_mode(enum clock_event_mode mode,
- 				    struct clock_event_device *evt)
- {
--	u32 period;
--
- 	omap_dm_timer_stop(gptimer);
--
--	switch (mode) {
--	case CLOCK_EVT_MODE_PERIODIC:
--		period = clk_get_rate(omap_dm_timer_get_fclk(gptimer)) / HZ;
--		period -= 1;
--
--		omap_dm_timer_set_load_start(gptimer, 1, 0xffffffff - period);
--		break;
--	case CLOCK_EVT_MODE_ONESHOT:
--		break;
--	case CLOCK_EVT_MODE_UNUSED:
--	case CLOCK_EVT_MODE_SHUTDOWN:
--	case CLOCK_EVT_MODE_RESUME:
--		break;
--	}
- }
- 
- static struct clock_event_device clockevent_gpt = {
- 	.name		= "gp timer",
--	.features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-+	.features	= CLOCK_EVT_FEAT_ONESHOT,
- 	.shift		= 32,
- 	.set_next_event	= omap2_gp_timer_set_next_event,
- 	.set_mode	= omap2_gp_timer_set_mode,
-@@ -111,12 +96,15 @@ static void __init omap2_gp_clockevent_init(void)
- 
- 	omap2_gp_timer_irq.dev_id = (void *)gptimer;
- 	setup_irq(omap_dm_timer_get_irq(gptimer), &omap2_gp_timer_irq);
--	omap_dm_timer_set_int_enable(gptimer, OMAP_TIMER_INT_OVERFLOW);
-+	omap_dm_timer_stop(gptimer);
-+	/*	omap_dm_timer_set_load(gptimer, 0, 0);*/
-+	omap_dm_timer_set_match(gptimer, 1, GPTIMER_MATCH_VAL);
-+	omap_dm_timer_set_int_enable(gptimer, OMAP_TIMER_INT_MATCH);
- 
- 	clockevent_gpt.mult = div_sc(tick_rate, NSEC_PER_SEC,
- 				     clockevent_gpt.shift);
- 	clockevent_gpt.max_delta_ns =
--		clockevent_delta2ns(0xffffffff, &clockevent_gpt);
-+		clockevent_delta2ns(GPTIMER_MATCH_VAL, &clockevent_gpt);
- 	clockevent_gpt.min_delta_ns =
- 		clockevent_delta2ns(1, &clockevent_gpt);
-