diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/arm/mach-msm/timer.c | 51 |
1 files changed, 30 insertions, 21 deletions
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c index c105d28b53e3..38b95e949d13 100644 --- a/arch/arm/mach-msm/timer.c +++ b/arch/arm/mach-msm/timer.c @@ -24,10 +24,7 @@ #include <asm/mach/time.h> #include <mach/msm_iomap.h> - -#ifndef MSM_DGT_BASE -#define MSM_DGT_BASE (MSM_GPT_BASE + 0x10) -#endif +#include <mach/cpu.h> #define TIMER_MATCH_VAL 0x0000 #define TIMER_COUNT_VAL 0x0004 @@ -52,18 +49,14 @@ enum timer_location { GLOBAL_TIMER = 1, }; -#ifdef MSM_TMR0_BASE -#define MSM_TMR_GLOBAL (MSM_TMR0_BASE - MSM_TMR_BASE) -#else -#define MSM_TMR_GLOBAL 0 -#endif - #define MSM_GLOBAL_TIMER MSM_CLOCK_DGT +/* TODO: Remove these ifdefs */ #if defined(CONFIG_ARCH_QSD8X50) #define DGT_HZ (19200000 / 4) /* 19.2 MHz / 4 by default */ #define MSM_DGT_SHIFT (0) -#elif defined(CONFIG_ARCH_MSM7X30) || defined(CONFIG_ARCH_MSM8X60) +#elif defined(CONFIG_ARCH_MSM7X30) || defined(CONFIG_ARCH_MSM8X60) || \ + defined(CONFIG_ARCH_MSM8960) #define DGT_HZ (24576000 / 4) /* 24.576 MHz (LPXO) / 4 by default */ #define MSM_DGT_SHIFT (0) #else @@ -177,11 +170,7 @@ static struct msm_clock msm_clocks[] = { .dev_id = &msm_clocks[0].clockevent, .irq = INT_GP_TIMER_EXP }, - .regbase = MSM_GPT_BASE, .freq = GPT_HZ, - .local_counter = MSM_GPT_BASE + TIMER_COUNT_VAL, - .global_counter = MSM_GPT_BASE + TIMER_COUNT_VAL + - MSM_TMR_GLOBAL, }, [MSM_CLOCK_DGT] = { .clockevent = { @@ -206,12 +195,8 @@ static struct msm_clock msm_clocks[] = { .dev_id = &msm_clocks[1].clockevent, .irq = INT_DEBUG_TIMER_EXP }, - .regbase = MSM_DGT_BASE, .freq = DGT_HZ >> MSM_DGT_SHIFT, .shift = MSM_DGT_SHIFT, - .local_counter = MSM_DGT_BASE + TIMER_COUNT_VAL, - .global_counter = MSM_DGT_BASE + TIMER_COUNT_VAL + - MSM_TMR_GLOBAL, } }; @@ -219,6 +204,25 @@ static void __init msm_timer_init(void) { int i; int res; + int global_offset = 0; + + if (cpu_is_msm7x01()) { + msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE; + msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x10; + } else if (cpu_is_msm7x30()) { + msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE + 0x04; + msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x24; + } else if (cpu_is_qsd8x50()) { + msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE; + msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x10; + } else if (cpu_is_msm8x60() || cpu_is_msm8960()) { + msm_clocks[MSM_CLOCK_GPT].regbase = MSM_TMR_BASE + 0x04; + msm_clocks[MSM_CLOCK_DGT].regbase = MSM_TMR_BASE + 0x24; + + /* Use CPU0's timer as the global timer. */ + global_offset = MSM_TMR0_BASE - MSM_TMR_BASE; + } else + BUG(); #ifdef CONFIG_ARCH_MSM_SCORPIONMP writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL); @@ -228,6 +232,10 @@ static void __init msm_timer_init(void) struct msm_clock *clock = &msm_clocks[i]; struct clock_event_device *ce = &clock->clockevent; struct clocksource *cs = &clock->clocksource; + + clock->local_counter = clock->regbase + TIMER_COUNT_VAL; + clock->global_counter = clock->local_counter + global_offset; + writel(0, clock->regbase + TIMER_ENABLE); writel(0, clock->regbase + TIMER_CLEAR); writel(~0, clock->regbase + TIMER_MATCH_VAL); @@ -255,13 +263,13 @@ static void __init msm_timer_init(void) } #ifdef CONFIG_SMP -void __cpuinit local_timer_setup(struct clock_event_device *evt) +int __cpuinit local_timer_setup(struct clock_event_device *evt) { struct msm_clock *clock = &msm_clocks[MSM_GLOBAL_TIMER]; /* Use existing clock_event for cpu 0 */ if (!smp_processor_id()) - return; + return 0; writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL); @@ -287,6 +295,7 @@ void __cpuinit local_timer_setup(struct clock_event_device *evt) gic_enable_ppi(clock->irq.irq); clockevents_register_device(evt); + return 0; } inline int local_timer_ack(void) |