The commit 8dfafdd (Introduce common timer functions), add common timer functions, we can use them directly.
Signed-off-by: Bo Shen voice.shen@atmel.com ---
arch/arm/cpu/armv7/at91/timer.c | 61 -------------------------------- arch/arm/include/asm/arch-at91/sama5d3.h | 3 ++ arch/arm/include/asm/arch-at91/sama5d4.h | 3 ++ 3 files changed, 6 insertions(+), 61 deletions(-)
diff --git a/arch/arm/cpu/armv7/at91/timer.c b/arch/arm/cpu/armv7/at91/timer.c index 19bf80b..a4a3817 100644 --- a/arch/arm/cpu/armv7/at91/timer.c +++ b/arch/arm/cpu/armv7/at91/timer.c @@ -36,22 +36,6 @@ DECLARE_GLOBAL_DATA_PTR;
#define TIMER_LOAD_VAL 0xfffff
-static inline unsigned long long tick_to_time(unsigned long long tick) -{ - tick *= CONFIG_SYS_HZ; - do_div(tick, gd->arch.timer_rate_hz); - - return tick; -} - -static inline unsigned long long usec_to_tick(unsigned long long usec) -{ - usec *= gd->arch.timer_rate_hz; - do_div(usec, 1000000); - - return usec; -} - /* * Use the PITC in full 32 bit incrementing mode */ @@ -67,55 +51,10 @@ int timer_init(void)
gd->arch.timer_rate_hz = get_pit_clk_rate() / 16;
- gd->arch.tbu = 0; - gd->arch.tbl = 0; - return 0; }
/* - * Get the current 64 bit timer tick count - */ -unsigned long long get_ticks(void) -{ - at91_pit_t *pit = (at91_pit_t *)ATMEL_BASE_PIT; - - ulong now = readl(&pit->piir); - - /* increment tbu if tbl has rolled over */ - if (now < gd->arch.tbl) - gd->arch.tbu++; - gd->arch.tbl = now; - return (((unsigned long long)gd->arch.tbu) << 32) | gd->arch.tbl; -} - -void __udelay(unsigned long usec) -{ - unsigned long long start; - ulong tmo; - - start = get_ticks(); /* get current timestamp */ - tmo = usec_to_tick(usec); /* convert usecs to ticks */ - while ((get_ticks() - start) < tmo) - ; /* loop till time has passed */ -} - -/* - * get_timer(base) can be used to check for timeouts or - * to measure elasped time relative to an event: - * - * ulong start_time = get_timer(0) sets start_time to the current - * time value. - * get_timer(start_time) returns the time elapsed since then. - * - * The time is used in CONFIG_SYS_HZ units! - */ -ulong get_timer(ulong base) -{ - return tick_to_time(get_ticks()) - base; -} - -/* * Return the number of timer ticks per second. */ ulong get_tbclk(void) diff --git a/arch/arm/include/asm/arch-at91/sama5d3.h b/arch/arm/include/asm/arch-at91/sama5d3.h index 227ba80..b749cb3 100644 --- a/arch/arm/include/asm/arch-at91/sama5d3.h +++ b/arch/arm/include/asm/arch-at91/sama5d3.h @@ -189,6 +189,9 @@ #define PIO_SCDR_DIV 0x3fff #define CPU_HAS_PCR
+/* Timer */ +#define CONFIG_SYS_TIMER_COUNTER 0xfffffe3c + /* * PMECC table in ROM */ diff --git a/arch/arm/include/asm/arch-at91/sama5d4.h b/arch/arm/include/asm/arch-at91/sama5d4.h index d851568..990846a 100644 --- a/arch/arm/include/asm/arch-at91/sama5d4.h +++ b/arch/arm/include/asm/arch-at91/sama5d4.h @@ -191,6 +191,9 @@ #define cpu_is_sama5d44() (cpu_is_sama5d4() && \ (get_extension_chip_id() == ARCH_EXID_SAMA5D44))
+/* Timer */ +#define CONFIG_SYS_TIMER_COUNTER 0xfffffe3c + /* * No PMECC Galois table in ROM */