diff options
Diffstat (limited to 'arch/arm/mach-omap2/timer.c')
| -rw-r--r-- | arch/arm/mach-omap2/timer.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index 538e7cda5eea..3ca81e0ada5e 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -55,6 +55,7 @@ #include "soc.h" #include "common.h" #include "powerdomain.h" +#include "omap-secure.h" #define REALTIME_COUNTER_BASE 0x48243200 #define INCREMENTER_NUMERATOR_OFFSET 0x10 @@ -66,6 +67,15 @@ static struct omap_dm_timer clkev; static struct clock_event_device clockevent_gpt; +#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER +static unsigned long arch_timer_freq; + +void set_cntfreq(void) +{ + omap_smc1(OMAP5_DRA7_MON_SET_CNTFRQ_INDEX, arch_timer_freq); +} +#endif + static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id) { struct clock_event_device *evt = &clockevent_gpt; @@ -515,6 +525,10 @@ static void __init realtime_counter_init(void) num = 8; den = 25; break; + case 20000000: + num = 192; + den = 625; + break; case 2600000: num = 384; den = 1625; @@ -542,6 +556,9 @@ static void __init realtime_counter_init(void) reg |= den; __raw_writel(reg, base + INCREMENTER_DENUMERATOR_RELOAD_OFFSET); + arch_timer_freq = (rate / den) * num; + set_cntfreq(); + iounmap(base); } #else |