diff options
Diffstat (limited to 'arch/arm/plat-spear/time.c')
-rw-r--r-- | arch/arm/plat-spear/time.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/arch/arm/plat-spear/time.c b/arch/arm/plat-spear/time.c index 0c77e429867..a3164d1647f 100644 --- a/arch/arm/plat-spear/time.c +++ b/arch/arm/plat-spear/time.c @@ -15,14 +15,13 @@ #include <linux/err.h> #include <linux/init.h> #include <linux/interrupt.h> +#include <linux/ioport.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/time.h> #include <linux/irq.h> #include <asm/mach/time.h> #include <mach/generic.h> -#include <mach/hardware.h> -#include <mach/irqs.h> /* * We would use TIMER0 and TIMER1 as clockevent and clocksource. @@ -145,11 +144,13 @@ static void clockevent_set_mode(enum clock_event_mode mode, static int clockevent_next_event(unsigned long cycles, struct clock_event_device *clk_event_dev) { - u16 val; + u16 val = readw(gpt_base + CR(CLKEVT)); + + if (val & CTRL_ENABLE) + writew(val & ~CTRL_ENABLE, gpt_base + CR(CLKEVT)); writew(cycles, gpt_base + LOAD(CLKEVT)); - val = readw(gpt_base + CR(CLKEVT)); val |= CTRL_ENABLE | CTRL_INT_ENABLE; writew(val, gpt_base + CR(CLKEVT)); @@ -173,7 +174,7 @@ static struct irqaction spear_timer_irq = { .handler = spear_timer_interrupt }; -static void __init spear_clockevent_init(void) +static void __init spear_clockevent_init(int irq) { u32 tick_rate; @@ -193,19 +194,19 @@ static void __init spear_clockevent_init(void) clockevents_register_device(&clkevt); - setup_irq(SPEAR_GPT0_CHAN0_IRQ, &spear_timer_irq); + setup_irq(irq, &spear_timer_irq); } -void __init spear_setup_timer(void) +void __init spear_setup_timer(resource_size_t base, int irq) { int ret; - if (!request_mem_region(SPEAR_GPT0_BASE, SZ_1K, "gpt0")) { + if (!request_mem_region(base, SZ_1K, "gpt0")) { pr_err("%s:cannot get IO addr\n", __func__); return; } - gpt_base = (void __iomem *)ioremap(SPEAR_GPT0_BASE, SZ_1K); + gpt_base = ioremap(base, SZ_1K); if (!gpt_base) { pr_err("%s:ioremap failed for gpt\n", __func__); goto err_mem; @@ -223,7 +224,7 @@ void __init spear_setup_timer(void) goto err_clk; } - spear_clockevent_init(); + spear_clockevent_init(irq); spear_clocksource_init(); return; @@ -233,5 +234,5 @@ err_clk: err_iomap: iounmap(gpt_base); err_mem: - release_mem_region(SPEAR_GPT0_BASE, SZ_1K); + release_mem_region(base, SZ_1K); } |