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authorMarcin Mielczarczyk <marcin.mielczarczyk@tieto.com>2010-06-08 18:31:05 +0200
committerJohn Rigby <john.rigby@linaro.org>2010-09-02 22:45:39 -0600
commit8381b7eff5c568098e360a8123f8c95fc2eafdfa (patch)
tree548a9343e37234d253f647071f981b5433116bf4
parent5a6abfa960d4fbc7e0692dca275f80662e33636d (diff)
downloadlinux-2.6.34-ux500-8381b7eff5c568098e360a8123f8c95fc2eafdfa.tar.gz
Timer: MTU0 interrupt setup fixed
This commit sets up interrupts only for timers which are used. It prevents from boot up hang when MTU0 interrupts are enabled by default. This problem has been noticed on some early versions of V1 boards. Signed-off-by: Marcin Mielczarczyk <marcin.mielczarczyk@tieto.com> Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Change-Id: I21ab2ce108e73b21958df7625ef5154ae8c2b631 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/2526 Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
-rwxr-xr-xarch/arm/mach-ux500/timer.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c
index d1f09fa5126..b5cdd87e79f 100755
--- a/arch/arm/mach-ux500/timer.c
+++ b/arch/arm/mach-ux500/timer.c
@@ -71,7 +71,7 @@ static void u8500_clkevt_mode(enum clock_event_mode mode,
case CLOCK_EVT_MODE_PERIODIC:
/* enable interrupts -- and count current value? */
raw_local_irq_save(flags);
- writel(readl(mtu0_base + MTU_IMSC) | 1, mtu0_base + MTU_IMSC);
+ writel(1, mtu0_base + MTU_IMSC);
raw_local_irq_restore(flags);
break;
case CLOCK_EVT_MODE_ONESHOT:
@@ -81,7 +81,7 @@ static void u8500_clkevt_mode(enum clock_event_mode mode,
case CLOCK_EVT_MODE_UNUSED:
/* disable irq */
raw_local_irq_save(flags);
- writel(readl(mtu0_base + MTU_IMSC) & ~1, mtu0_base + MTU_IMSC);
+ writel(0, mtu0_base + MTU_IMSC);
raw_local_irq_restore(flags);
break;
case CLOCK_EVT_MODE_RESUME: