summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/arm/common/timer-sp.c16
-rw-r--r--arch/arm/mach-vexpress/ct-ca9x4.c4
-rw-r--r--arch/arm/mach-vexpress/v2m.c4
3 files changed, 16 insertions, 8 deletions
diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c
index 5b7e8c9046be..41df47875122 100644
--- a/arch/arm/common/timer-sp.c
+++ b/arch/arm/common/timer-sp.c
@@ -28,12 +28,6 @@
#include <asm/hardware/arm_timer.h>
-/*
- * These timers are currently always setup to be clocked at 1MHz.
- */
-#define TIMER_FREQ_KHZ (1000)
-#define TIMER_RELOAD (TIMER_FREQ_KHZ * 1000 / HZ)
-
static long __init sp804_get_clock_rate(const char *name)
{
struct clk *clk;
@@ -84,6 +78,7 @@ void __init sp804_clocksource_init(void __iomem *base, const char *name)
static void __iomem *clkevt_base;
+static unsigned long clkevt_reload;
/*
* IRQ handler for the timer
@@ -109,7 +104,7 @@ static void sp804_set_mode(enum clock_event_mode mode,
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
- writel(TIMER_RELOAD, clkevt_base + TIMER_LOAD);
+ writel(clkevt_reload, clkevt_base + TIMER_LOAD);
ctrl |= TIMER_CTRL_PERIODIC | TIMER_CTRL_ENABLE;
break;
@@ -158,12 +153,17 @@ void __init sp804_clockevents_init(void __iomem *base, unsigned int irq,
const char *name)
{
struct clock_event_device *evt = &sp804_clockevent;
+ long rate = sp804_get_clock_rate(name);
+
+ if (rate < 0)
+ return;
clkevt_base = base;
+ clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ);
evt->name = name;
evt->irq = irq;
- evt->mult = div_sc(TIMER_FREQ_KHZ, NSEC_PER_MSEC, evt->shift);
+ evt->mult = div_sc(rate, NSEC_PER_SEC, evt->shift);
evt->max_delta_ns = clockevent_delta2ns(0xffffffff, evt);
evt->min_delta_ns = clockevent_delta2ns(0xf, evt);
diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c
index 271213384203..2023a9e5211c 100644
--- a/arch/arm/mach-vexpress/ct-ca9x4.c
+++ b/arch/arm/mach-vexpress/ct-ca9x4.c
@@ -152,6 +152,10 @@ static struct clk_lookup lookups[] = {
.clk = &osc1_clk,
}, { /* SP804 timers */
.dev_id = "sp804",
+ .con_id = "ct-timer0",
+ .clk = &ct_sp804_clk,
+ }, { /* SP804 timers */
+ .dev_id = "sp804",
.con_id = "ct-timer1",
.clk = &ct_sp804_clk,
},
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index f6fecdd0fbe8..9d9d4af384e2 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -370,6 +370,10 @@ static struct clk_lookup v2m_lookups[] = {
.clk = &osc1_clk,
}, { /* SP804 timers */
.dev_id = "sp804",
+ .con_id = "v2m-timer0",
+ .clk = &v2m_sp804_clk,
+ }, { /* SP804 timers */
+ .dev_id = "sp804",
.con_id = "v2m-timer1",
.clk = &v2m_sp804_clk,
},
OpenPOWER on IntegriCloud