diff options
Diffstat (limited to 'arch/arm/plat-samsung')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/cpu.h | 2 | ||||
-rw-r--r-- | arch/arm/plat-samsung/include/plat/samsung-time.h | 11 | ||||
-rw-r--r-- | arch/arm/plat-samsung/samsung-time.c | 12 |
3 files changed, 18 insertions, 7 deletions
diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h index 37703ef6dfc7..100c29606e1e 100644 --- a/arch/arm/plat-samsung/include/plat/cpu.h +++ b/arch/arm/plat-samsung/include/plat/cpu.h @@ -192,7 +192,7 @@ extern void s3c24xx_init_uartdevs(char *name, struct s3c24xx_uart_resources *res, struct s3c2410_uartcfg *cfg, int no); -/* timer for 2410/2440 */ +/* timer for s5pc100 only */ extern void s3c24xx_timer_init(void); diff --git a/arch/arm/plat-samsung/include/plat/samsung-time.h b/arch/arm/plat-samsung/include/plat/samsung-time.h index c686f6a53c8d..21198ace3845 100644 --- a/arch/arm/plat-samsung/include/plat/samsung-time.h +++ b/arch/arm/plat-samsung/include/plat/samsung-time.h @@ -30,7 +30,18 @@ struct samsung_timer_source { /* Be able to sleep for atleast 4 seconds (usually more) */ #define SAMSUNG_TIMER_MIN_RANGE 4 +#ifdef CONFIG_ARCH_S3C24XX +#define TCNT_MAX 0xffff +#define TSCALER_DIV 25 +#define TDIV 50 +#define TSIZE 16 +#else #define TCNT_MAX 0xffffffff +#define TSCALER_DIV 2 +#define TDIV 2 +#define TSIZE 32 +#endif + #define NON_PERIODIC 0 #define PERIODIC 1 diff --git a/arch/arm/plat-samsung/samsung-time.c b/arch/arm/plat-samsung/samsung-time.c index aa8aa8014cc1..f899cbc9b288 100644 --- a/arch/arm/plat-samsung/samsung-time.c +++ b/arch/arm/plat-samsung/samsung-time.c @@ -2,7 +2,7 @@ * Copyright (c) 2011 Samsung Electronics Co., Ltd. * http://www.samsung.com/ * - * SAMSUNG - Common hr-timer support + * samsung - Common hr-timer support (s3c and s5p) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -267,8 +267,8 @@ static void __init samsung_clockevent_init(void) tscaler = clk_get_parent(tdiv_event); - clk_set_rate(tscaler, pclk / 2); - clk_set_rate(tdiv_event, pclk / 2); + clk_set_rate(tscaler, pclk / TSCALER_DIV); + clk_set_rate(tdiv_event, pclk / TDIV); clk_set_parent(tin_event, tdiv_event); clock_rate = clk_get_rate(tin_event); @@ -329,7 +329,7 @@ static void __init samsung_clocksource_init(void) pclk = clk_get_rate(timerclk); - clk_set_rate(tdiv_source, pclk / 2); + clk_set_rate(tdiv_source, pclk / TDIV); clk_set_parent(tin_source, tdiv_source); clock_rate = clk_get_rate(tin_source); @@ -337,10 +337,10 @@ static void __init samsung_clocksource_init(void) samsung_time_setup(timer_source.source_id, TCNT_MAX); samsung_time_start(timer_source.source_id, PERIODIC); - setup_sched_clock(samsung_read_sched_clock, 32, clock_rate); + setup_sched_clock(samsung_read_sched_clock, TSIZE, clock_rate); if (clocksource_mmio_init(samsung_timer_reg(), "samsung_clocksource_timer", - clock_rate, 250, 32, clocksource_mmio_readl_down)) + clock_rate, 250, TSIZE, clocksource_mmio_readl_down)) panic("samsung_clocksource_timer: can't register clocksource\n"); } |