* [PATCH] clocksource: fix Marvell timer read-back value
@ 2013-06-27 17:39 Sebastian Hesselbarth
2013-06-29 8:43 ` Sascha Hauer
0 siblings, 1 reply; 2+ messages in thread
From: Sebastian Hesselbarth @ 2013-06-27 17:39 UTC (permalink / raw)
To: Sebastian Hesselbarth; +Cc: Thomas Petazzoni, barebox
Clocksource read callback expects incrementing timer values, while
internal timer on Marvell SoCs counts backwards. Fix value returned
by Marvell MVEBU and Orion clocksource drivers.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: barebox@lists.infradead.org
---
drivers/clocksource/mvebu.c | 2 +-
drivers/clocksource/orion.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/clocksource/mvebu.c b/drivers/clocksource/mvebu.c
index 1a9d573..6e5ceba 100644
--- a/drivers/clocksource/mvebu.c
+++ b/drivers/clocksource/mvebu.c
@@ -42,7 +42,7 @@ static __iomem void *timer_base;
uint64_t mvebu_clocksource_read(void)
{
- return __raw_readl(timer_base + TIMER0_VAL_OFF);
+ return 0 - __raw_readl(timer_base + TIMER0_VAL_OFF);
}
static struct clocksource cs = {
diff --git a/drivers/clocksource/orion.c b/drivers/clocksource/orion.c
index d27477a..6902c72 100644
--- a/drivers/clocksource/orion.c
+++ b/drivers/clocksource/orion.c
@@ -34,7 +34,7 @@ static __iomem void *timer_base;
static uint64_t orion_clocksource_read(void)
{
- return __raw_readl(timer_base + TIMER0_VAL);
+ return 0 - __raw_readl(timer_base + TIMER0_VAL);
}
static struct clocksource clksrc = {
--
1.7.2.5
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] clocksource: fix Marvell timer read-back value
2013-06-27 17:39 [PATCH] clocksource: fix Marvell timer read-back value Sebastian Hesselbarth
@ 2013-06-29 8:43 ` Sascha Hauer
0 siblings, 0 replies; 2+ messages in thread
From: Sascha Hauer @ 2013-06-29 8:43 UTC (permalink / raw)
To: Sebastian Hesselbarth; +Cc: Thomas Petazzoni, barebox
On Thu, Jun 27, 2013 at 07:39:20PM +0200, Sebastian Hesselbarth wrote:
> Clocksource read callback expects incrementing timer values, while
> internal timer on Marvell SoCs counts backwards. Fix value returned
> by Marvell MVEBU and Orion clocksource drivers.
>
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Applied, thanks
Sascha
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2013-06-29 8:43 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-06-27 17:39 [PATCH] clocksource: fix Marvell timer read-back value Sebastian Hesselbarth
2013-06-29 8:43 ` Sascha Hauer
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox