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Merge branch 'omap-timer-for-v3.10' of git://github.com/jonhunter/lin…
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…ux into omap-for-v3.10/timer

Conflicts:
	arch/arm/mach-omap2/timer.c
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Tony Lindgren committed Apr 3, 2013
2 parents 43231b5 + 4615943 commit 7f585bb
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Showing 4 changed files with 66 additions and 65 deletions.
2 changes: 1 addition & 1 deletion arch/arm/mach-omap2/board-cm-t3517.c
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Original file line number Diff line number Diff line change
Expand Up @@ -324,6 +324,6 @@ MACHINE_START(CM_T3517, "Compulab CM-T3517")
.handle_irq = omap3_intc_handle_irq,
.init_machine = cm_t3517_init,
.init_late = am35xx_init_late,
.init_time = omap3_gp_gptimer_timer_init,
.init_time = omap3_gptimer_timer_init,
.restart = omap3xxx_restart,
MACHINE_END
2 changes: 1 addition & 1 deletion arch/arm/mach-omap2/board-generic.c
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Original file line number Diff line number Diff line change
Expand Up @@ -140,7 +140,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
.init_irq = omap_intc_of_init,
.handle_irq = omap3_intc_handle_irq,
.init_machine = omap_generic_init,
.init_time = omap3_am33xx_gptimer_timer_init,
.init_time = omap3_gptimer_timer_init,
.dt_compat = am33xx_boards_compat,
.restart = am33xx_restart,
MACHINE_END
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3 changes: 1 addition & 2 deletions arch/arm/mach-omap2/common.h
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Original file line number Diff line number Diff line change
Expand Up @@ -82,8 +82,7 @@ extern void omap2_init_common_infrastructure(void);
extern void omap2_sync32k_timer_init(void);
extern void omap3_sync32k_timer_init(void);
extern void omap3_secure_sync32k_timer_init(void);
extern void omap3_gp_gptimer_timer_init(void);
extern void omap3_am33xx_gptimer_timer_init(void);
extern void omap3_gptimer_timer_init(void);
extern void omap4_local_timer_init(void);
extern void omap5_realtime_timer_init(void);

Expand Down
124 changes: 63 additions & 61 deletions arch/arm/mach-omap2/timer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -57,16 +57,6 @@
#include "common.h"
#include "powerdomain.h"

/* Parent clocks, eventually these will come from the clock framework */

#define OMAP2_MPU_SOURCE "sys_ck"
#define OMAP3_MPU_SOURCE OMAP2_MPU_SOURCE
#define OMAP4_MPU_SOURCE "sys_clkin_ck"
#define OMAP5_MPU_SOURCE "sys_clkin"
#define OMAP2_32K_SOURCE "func_32k_ck"
#define OMAP3_32K_SOURCE "omap_32k_fck"
#define OMAP4_32K_SOURCE "sys_32k_ck"

#define REALTIME_COUNTER_BASE 0x48243200
#define INCREMENTER_NUMERATOR_OFFSET 0x10
#define INCREMENTER_DENUMERATOR_RELOAD_OFFSET 0x14
Expand Down Expand Up @@ -130,7 +120,6 @@ static void omap2_gp_timer_set_mode(enum clock_event_mode mode,
}

static struct clock_event_device clockevent_gpt = {
.name = "gp_timer",
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.rating = 300,
.set_next_event = omap2_gp_timer_set_next_event,
Expand Down Expand Up @@ -171,6 +160,12 @@ static struct device_node * __init omap_get_timer_dt(struct of_device_id *match,
if (property && !of_get_property(np, property, NULL))
continue;

if (!property && (of_get_property(np, "ti,timer-alwon", NULL) ||
of_get_property(np, "ti,timer-dsp", NULL) ||
of_get_property(np, "ti,timer-pwm", NULL) ||
of_get_property(np, "ti,timer-secure", NULL)))
continue;

of_add_property(np, &device_disabled);
return np;
}
Expand Down Expand Up @@ -215,16 +210,17 @@ static u32 __init omap_dm_timer_get_errata(void)
}

static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
int gptimer_id,
const char *fck_source,
const char *property,
int posted)
const char *fck_source,
const char *property,
const char **timer_name,
int posted)
{
char name[10]; /* 10 = sizeof("gptXX_Xck0") */
const char *oh_name;
struct device_node *np;
struct omap_hwmod *oh;
struct resource irq, mem;
struct clk *src;
int r = 0;

if (of_have_populated_dt()) {
Expand All @@ -244,17 +240,19 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,

of_node_put(np);
} else {
if (omap_dm_timer_reserve_systimer(gptimer_id))
if (omap_dm_timer_reserve_systimer(timer->id))
return -ENODEV;

sprintf(name, "timer%d", gptimer_id);
sprintf(name, "timer%d", timer->id);
oh_name = name;
}

oh = omap_hwmod_lookup(oh_name);
if (!oh)
return -ENODEV;

*timer_name = oh->name;

if (!of_have_populated_dt()) {
r = omap_hwmod_get_resource_byname(oh, IORESOURCE_IRQ, NULL,
&irq);
Expand All @@ -277,24 +275,24 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
/* After the dmtimer is using hwmod these clocks won't be needed */
timer->fclk = clk_get(NULL, omap_hwmod_get_main_clk(oh));
if (IS_ERR(timer->fclk))
return -ENODEV;
return PTR_ERR(timer->fclk);

/* FIXME: Need to remove hard-coded test on timer ID */
if (gptimer_id != 12) {
struct clk *src;

src = clk_get(NULL, fck_source);
if (IS_ERR(src)) {
r = -EINVAL;
} else {
r = clk_set_parent(timer->fclk, src);
if (r < 0)
pr_warn("%s: %s cannot set source\n",
__func__, oh->name);
src = clk_get(NULL, fck_source);
if (IS_ERR(src))
return PTR_ERR(src);

if (clk_get_parent(timer->fclk) != src) {
r = clk_set_parent(timer->fclk, src);
if (r < 0) {
pr_warn("%s: %s cannot set source\n", __func__,
oh->name);
clk_put(src);
return r;
}
}

clk_put(src);

omap_hwmod_setup_one(oh_name);
omap_hwmod_enable(oh);
__omap_dm_timer_init_regs(timer);
Expand All @@ -318,6 +316,7 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
{
int res;

clkev.id = gptimer_id;
clkev.errata = omap_dm_timer_get_errata();

/*
Expand All @@ -327,8 +326,8 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
*/
__omap_dm_timer_override_errata(&clkev, OMAP_TIMER_ERRATA_I103_I767);

res = omap_dm_timer_init_one(&clkev, gptimer_id, fck_source, property,
OMAP_TIMER_POSTED);
res = omap_dm_timer_init_one(&clkev, fck_source, property,
&clockevent_gpt.name, OMAP_TIMER_POSTED);
BUG_ON(res);

omap2_gp_timer_irq.dev_id = &clkev;
Expand All @@ -342,8 +341,8 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
3, /* Timer internal resynch latency */
0xffffffff);

pr_info("OMAP clockevent source: GPTIMER%d at %lu Hz\n",
gptimer_id, clkev.rate);
pr_info("OMAP clockevent source: %s at %lu Hz\n", clockevent_gpt.name,
clkev.rate);
}

/* Clocksource code */
Expand All @@ -360,7 +359,6 @@ static cycle_t clocksource_read_cycles(struct clocksource *cs)
}

static struct clocksource clocksource_gpt = {
.name = "gp_timer",
.rating = 300,
.read = clocksource_read_cycles,
.mask = CLOCKSOURCE_MASK(32),
Expand Down Expand Up @@ -443,13 +441,16 @@ static int __init __maybe_unused omap2_sync32k_clocksource_init(void)
}

static void __init omap2_gptimer_clocksource_init(int gptimer_id,
const char *fck_source)
const char *fck_source,
const char *property)
{
int res;

clksrc.id = gptimer_id;
clksrc.errata = omap_dm_timer_get_errata();

res = omap_dm_timer_init_one(&clksrc, gptimer_id, fck_source, NULL,
res = omap_dm_timer_init_one(&clksrc, fck_source, property,
&clocksource_gpt.name,
OMAP_TIMER_NONPOSTED);
BUG_ON(res);

Expand All @@ -462,8 +463,8 @@ static void __init omap2_gptimer_clocksource_init(int gptimer_id,
pr_err("Could not register clocksource %s\n",
clocksource_gpt.name);
else
pr_info("OMAP clocksource: GPTIMER%d at %lu Hz\n",
gptimer_id, clksrc.rate);
pr_info("OMAP clocksource: %s at %lu Hz\n",
clocksource_gpt.name, clksrc.rate);
}

#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
Expand All @@ -488,7 +489,7 @@ static void __init realtime_counter_init(void)
pr_err("%s: ioremap failed\n", __func__);
return;
}
sys_clk = clk_get(NULL, OMAP5_MPU_SOURCE);
sys_clk = clk_get(NULL, "sys_clkin");
if (IS_ERR(sys_clk)) {
pr_err("%s: failed to get system clock handle\n", __func__);
iounmap(base);
Expand Down Expand Up @@ -545,49 +546,52 @@ static inline void __init realtime_counter_init(void)
#endif

#define OMAP_SYS_GP_TIMER_INIT(name, clkev_nr, clkev_src, clkev_prop, \
clksrc_nr, clksrc_src) \
clksrc_nr, clksrc_src, clksrc_prop) \
void __init omap##name##_gptimer_timer_init(void) \
{ \
omap_dmtimer_init(); \
omap2_gp_clockevent_init((clkev_nr), clkev_src, clkev_prop); \
omap2_gptimer_clocksource_init((clksrc_nr), clksrc_src); \
omap2_gptimer_clocksource_init((clksrc_nr), clksrc_src, \
clksrc_prop); \
}

#define OMAP_SYS_32K_TIMER_INIT(name, clkev_nr, clkev_src, clkev_prop, \
clksrc_nr, clksrc_src) \
clksrc_nr, clksrc_src, clksrc_prop) \
void __init omap##name##_sync32k_timer_init(void) \
{ \
omap_dmtimer_init(); \
omap2_gp_clockevent_init((clkev_nr), clkev_src, clkev_prop); \
/* Enable the use of clocksource="gp_timer" kernel parameter */ \
if (use_gptimer_clksrc) \
omap2_gptimer_clocksource_init((clksrc_nr), clksrc_src);\
omap2_gptimer_clocksource_init((clksrc_nr), clksrc_src, \
clksrc_prop); \
else \
omap2_sync32k_clocksource_init(); \
}

#ifdef CONFIG_ARCH_OMAP2
OMAP_SYS_32K_TIMER_INIT(2, 1, OMAP2_32K_SOURCE, "ti,timer-alwon",
2, OMAP2_MPU_SOURCE);
OMAP_SYS_32K_TIMER_INIT(2, 1, "timer_32k_ck", "ti,timer-alwon",
2, "timer_sys_ck", NULL);
#endif /* CONFIG_ARCH_OMAP2 */

#ifdef CONFIG_ARCH_OMAP3
OMAP_SYS_32K_TIMER_INIT(3, 1, OMAP3_32K_SOURCE, "ti,timer-alwon",
2, OMAP3_MPU_SOURCE);
OMAP_SYS_32K_TIMER_INIT(3_secure, 12, OMAP3_32K_SOURCE, "ti,timer-secure",
2, OMAP3_MPU_SOURCE);
OMAP_SYS_GP_TIMER_INIT(3_gp, 1, OMAP3_MPU_SOURCE, "ti,timer-alwon",
2, OMAP3_MPU_SOURCE);
OMAP_SYS_32K_TIMER_INIT(3, 1, "timer_32k_ck", "ti,timer-alwon",
2, "timer_sys_ck", NULL);
OMAP_SYS_32K_TIMER_INIT(3_secure, 12, "secure_32k_fck", "ti,timer-secure",
2, "timer_sys_ck", NULL);
#endif /* CONFIG_ARCH_OMAP3 */

#ifdef CONFIG_SOC_AM33XX
OMAP_SYS_GP_TIMER_INIT(3_am33xx, 1, OMAP4_MPU_SOURCE, "ti,timer-alwon",
2, OMAP4_MPU_SOURCE);
#endif /* CONFIG_SOC_AM33XX */
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM33XX)
OMAP_SYS_GP_TIMER_INIT(3, 2, "timer_sys_ck", NULL,
1, "timer_sys_ck", "ti,timer-alwon");
#endif

#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
static OMAP_SYS_32K_TIMER_INIT(4, 1, "timer_32k_ck", "ti,timer-alwon",
2, "sys_clkin_ck", NULL);
#endif

#ifdef CONFIG_ARCH_OMAP4
OMAP_SYS_32K_TIMER_INIT(4, 1, OMAP4_32K_SOURCE, "ti,timer-alwon",
2, OMAP4_MPU_SOURCE);
#ifdef CONFIG_LOCAL_TIMERS
static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, OMAP44XX_LOCAL_TWD_BASE, 29);
void __init omap4_local_timer_init(void)
Expand Down Expand Up @@ -616,13 +620,11 @@ void __init omap4_local_timer_init(void)
#endif /* CONFIG_ARCH_OMAP4 */

#ifdef CONFIG_SOC_OMAP5
OMAP_SYS_32K_TIMER_INIT(5, 1, OMAP4_32K_SOURCE, "ti,timer-alwon",
2, OMAP5_MPU_SOURCE);
void __init omap5_realtime_timer_init(void)
{
int err;

omap5_sync32k_timer_init();
omap4_sync32k_timer_init();
realtime_counter_init();

err = arch_timer_of_register();
Expand Down

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