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omap2+: Reserve clocksource and timesource and initialize dmtimer later

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There's no need to initialize the dmtimer framework early.
Just mark the clocksource and timesource as reserved, and
initialize dmtimer with an arch_initcall.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Tony Lindgren 2011-03-29 15:54:49 -07:00
parent 98e182a26b
commit 11a0186f3e
4 changed files with 14 additions and 9 deletions
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4
arch/arm/mach-omap1/timer32k.c
View File

@ -183,10 +183,6 @@ static __init void omap_init_32k_timer(void)
bool __init omap_32k_timer_init(void)
{
omap_init_clocksource_32k();
#ifdef CONFIG_OMAP_DM_TIMER
omap_dm_timer_init();
#endif
omap_init_32k_timer();
return true;

6
arch/arm/mach-omap2/timer-gp.c
View File

@ -69,6 +69,8 @@
/* MAX_GPTIMER_ID: number of GPTIMERs on the chip */
#define MAX_GPTIMER_ID 12
u32 sys_timer_reserved;
/* Clockevent code */
static struct omap_dm_timer clkev;
@ -195,6 +197,8 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
omap_hwmod_enable(oh);
sys_timer_reserved |= (1 << (gptimer_id - 1));
if (gptimer_id != 12) {
struct clk *src;
@ -321,7 +325,6 @@ static void __init omap2_gp_clocksource_init(void)
#define OMAP_SYS_TIMER_INIT(name, clkev_nr, clkev_src) \
static void __init omap##name##_timer_init(void) \
{ \
omap_dm_timer_init(); \
omap2_gp_clockevent_init((clkev_nr), clkev_src); \
omap2_gp_clocksource_init(); \
}
@ -350,7 +353,6 @@ static void __init omap4_timer_init(void)
twd_base = ioremap(OMAP44XX_LOCAL_TWD_BASE, SZ_256);
BUG_ON(!twd_base);
#endif
omap_dm_timer_init();
omap2_gp_clockevent_init(1, OMAP4_CLKEV_SOURCE);
omap2_gp_clocksource_init();
}

10
arch/arm/plat-omap/dmtimer.c
View File

@ -572,7 +572,7 @@ int omap_dm_timers_active(void)
}
EXPORT_SYMBOL_GPL(omap_dm_timers_active);
int __init omap_dm_timer_init(void)
static int __init omap_dm_timer_init(void)
{
struct omap_dm_timer *timer;
int i, map_size = SZ_8K; /* Module 4KB + L4 4KB except on omap1 */
@ -625,8 +625,16 @@ int __init omap_dm_timer_init(void)
sprintf(clk_name, "gpt%d_fck", i + 1);
timer->fclk = clk_get(NULL, clk_name);
}
/* One or two timers may be set up early for sys_timer */
if (sys_timer_reserved & (1 << i)) {
timer->reserved = 1;
timer->posted = 1;
}
#endif
}
return 0;
}
arch_initcall(omap_dm_timer_init);

3
arch/arm/plat-omap/include/plat/dmtimer.h
View File

@ -61,8 +61,6 @@
struct omap_dm_timer;
struct clk;
int omap_dm_timer_init(void);
struct omap_dm_timer *omap_dm_timer_request(void);
struct omap_dm_timer *omap_dm_timer_request_specific(int timer_id);
void omap_dm_timer_free(struct omap_dm_timer *timer);
@ -221,6 +219,7 @@ struct omap_dm_timer {
unsigned posted:1;
};
extern u32 sys_timer_reserved;
void omap_dm_timer_prepare(struct omap_dm_timer *timer);
static inline u32 __omap_dm_timer_read(void __iomem *base, u32 reg,