lkml.org 
[lkml]   [2011]   [Jul]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCHv2] clocksource: convert S5PV210/S5P64X0 32-bit down counting clocksource
Convert the S5PV210/S5P64X0 32-bit down-counting clocksource to
the generic mmio clocksource infrastructure

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
arch/arm/Kconfig | 2 ++
arch/arm/plat-s5p/s5p-time.c | 20 +++-----------------
2 files changed, 5 insertions(+), 17 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9adc278..98fed17 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -721,6 +721,7 @@ config ARCH_S3C64XX
config ARCH_S5P64X0
bool "Samsung S5P6440 S5P6450"
select CPU_V6
+ select CLKSRC_MMIO
select GENERIC_GPIO
select HAVE_CLK
select HAVE_S3C2410_WATCHDOG if WATCHDOG
@@ -749,6 +750,7 @@ config ARCH_S5PV210
bool "Samsung S5PV210/S5PC110"
select CPU_V7
select ARCH_SPARSEMEM_ENABLE
+ select CLKSRC_MMIO
select GENERIC_GPIO
select HAVE_CLK
select ARM_L1_CACHE_SHIFT_6
diff --git a/arch/arm/plat-s5p/s5p-time.c b/arch/arm/plat-s5p/s5p-time.c
index 612934c..5666f55 100644
--- a/arch/arm/plat-s5p/s5p-time.c
+++ b/arch/arm/plat-s5p/s5p-time.c
@@ -314,13 +314,6 @@ static void __iomem *s5p_timer_reg(void)
return S3C_TIMERREG(offset);
}

-static cycle_t s5p_timer_read(struct clocksource *cs)
-{
- void __iomem *reg = s5p_timer_reg();
-
- return (cycle_t) (reg ? ~__raw_readl(reg) : 0);
-}
-
/*
* Override the global weak sched_clock symbol with this
* local implementation which uses the clocksource to get some
@@ -350,14 +343,6 @@ static void notrace s5p_update_sched_clock(void)
update_sched_clock(&cd, ~__raw_readl(reg), (u32)~0);
}

-struct clocksource time_clocksource = {
- .name = "s5p_clocksource_timer",
- .rating = 250,
- .read = s5p_timer_read,
- .mask = CLOCKSOURCE_MASK(32),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
static void __init s5p_clocksource_init(void)
{
unsigned long pclk;
@@ -375,8 +360,9 @@ static void __init s5p_clocksource_init(void)

init_sched_clock(&cd, s5p_update_sched_clock, 32, clock_rate);

- if (clocksource_register_hz(&time_clocksource, clock_rate))
- panic("%s: can't register clocksource\n", time_clocksource.name);
+ if (clocksource_mmio_init(s5p_timer_reg(), "s5p_clocksource_timer",
+ clock_rate, 250, 32, clocksource_mmio_readl_down))
+ panic("s5p_clocksource_timer: can't register clocksource\n");
}

static void __init s5p_timer_resources(void)
--
1.7.0.4



\
 
 \ /
  Last update: 2011-07-16 05:31    [W:0.581 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site