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ARM: OMAP: OMAP2 dmtimer power management support

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GPT1 will be set into non-posted mode, and the wakeup register
is set for all timers.

Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Juha Yrjola
2006-09-25 12:41:44 +03:00
committed by Tony Lindgren
parent ab0a2b9b9f
commit 39020842b3
1 changed files with 9 additions and 1 deletions
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10
arch/arm/plat-omap/dmtimer.c
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@@ -161,7 +161,7 @@ static void omap_dm_timer_reset(struct omap_dm_timer *timer)
{ {
u32 l; u32 l;
if (timer != &dm_timers[0]) { if (!cpu_class_is_omap2() || timer != &dm_timers[0]) {
omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06); omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06);
omap_dm_timer_wait_for_reset(timer); omap_dm_timer_wait_for_reset(timer);
} }
@@ -170,6 +170,13 @@ static void omap_dm_timer_reset(struct omap_dm_timer *timer)
/* Set to smart-idle mode */ /* Set to smart-idle mode */
l = omap_dm_timer_read_reg(timer, OMAP_TIMER_OCP_CFG_REG); l = omap_dm_timer_read_reg(timer, OMAP_TIMER_OCP_CFG_REG);
l |= 0x02 << 3; l |= 0x02 << 3;
if (cpu_class_is_omap2() && timer == &dm_timers[0]) {
/* Enable wake-up only for GPT1 on OMAP2 CPUs*/
l |= 1 << 2;
/* Non-posted mode */
omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0);
}
omap_dm_timer_write_reg(timer, OMAP_TIMER_OCP_CFG_REG, l); omap_dm_timer_write_reg(timer, OMAP_TIMER_OCP_CFG_REG, l);
} }
@@ -431,6 +438,7 @@ void omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,
unsigned int value) unsigned int value)
{ {
omap_dm_timer_write_reg(timer, OMAP_TIMER_INT_EN_REG, value); omap_dm_timer_write_reg(timer, OMAP_TIMER_INT_EN_REG, value);
omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG, value);
} }
unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer) unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)