From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: <tglx@linutronix.de>, <linux-kernel@vger.kernel.org>,
<linux-snps-arc@lists.infradead.org>,
Noam Camus <noamca@mellanox.com>, <Alexey.Brodkin@synopsys.com>,
Vineet Gupta <Vineet.Gupta1@synopsys.com>
Subject: [PATCH 1/9] ARC: timer: gfrc, rtc: Read BCR to detect whether hardware exists ...
Date: Mon, 31 Oct 2016 15:48:08 -0700 [thread overview]
Message-ID: <1477954096-770-2-git-send-email-vgupta@synopsys.com> (raw)
In-Reply-To: <1477954096-770-1-git-send-email-vgupta@synopsys.com>
... don't rely on cpuinfo populated in arc boot code. This paves wat for
moving this code in drivers/clocksource/
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
arch/arc/kernel/time.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c
index f927b8dc6edd..a2db010cde18 100644
--- a/arch/arc/kernel/time.c
+++ b/arch/arc/kernel/time.c
@@ -118,10 +118,11 @@ static struct clocksource arc_counter_gfrc = {
static int __init arc_cs_setup_gfrc(struct device_node *node)
{
- int exists = cpuinfo_arc700[0].extn.gfrc;
+ struct mcip_bcr mp;
int ret;
- if (WARN(!exists, "Global-64-bit-Ctr clocksource not detected"))
+ READ_BCR(ARC_REG_MCIP_BCR, mp);
+ if (WARN(!mp.gfrc, "Global-64-bit-Ctr clocksource not detected"))
return -ENXIO;
ret = arc_get_timer_clk(node);
@@ -174,10 +175,11 @@ static struct clocksource arc_counter_rtc = {
static int __init arc_cs_setup_rtc(struct device_node *node)
{
- int exists = cpuinfo_arc700[smp_processor_id()].extn.rtc;
+ struct bcr_timer timer;
int ret;
- if (WARN(!exists, "Local-64-bit-Ctr clocksource not detected"))
+ READ_BCR(ARC_REG_TIMERS_BCR, timer);
+ if (WARN(!timer.rtc, "Local-64-bit-Ctr clocksource not detected"))
return -ENXIO;
/* Local to CPU hence not usable in SMP */
--
2.7.4
next prev parent reply other threads:[~2016-10-31 22:48 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-23 12:12 [PATCH v2 0/3] Add clockevet for timer-nps driver to NPS400 SoC Noam Camus
2016-10-23 12:12 ` [PATCH v2 1/3] soc: Support for NPS HW scheduling Noam Camus
2016-10-31 10:26 ` Daniel Lezcano
2016-10-31 12:26 ` Noam Camus
2016-10-23 12:12 ` [PATCH v2 2/3] clocksource: update "fn" at CLOCKSOURCE_OF_DECLARE() of nps400 timer Noam Camus
2016-10-31 10:28 ` Daniel Lezcano
2016-10-31 15:19 ` Noam Camus
2016-10-23 12:12 ` [PATCH v2 3/3] clocksource: Add clockevent support to NPS400 driver Noam Camus
2016-10-30 20:41 ` Rob Herring
2016-10-31 10:52 ` Daniel Lezcano
2016-10-31 17:03 ` Noam Camus
2016-10-31 17:51 ` Vineet Gupta
2016-10-31 22:48 ` [PATCH 0/9] Move ARC timer code into drivers/clocksource/ Vineet Gupta
2016-10-31 22:48 ` Vineet Gupta [this message]
2016-11-03 17:00 ` [PATCH 1/9] ARC: timer: gfrc, rtc: Read BCR to detect whether hardware exists Daniel Lezcano
2016-11-03 17:41 ` Vineet Gupta
2016-10-31 22:48 ` [PATCH 2/9] ARC: timer: rtc: implement read loop in "C" vs. inline asm Vineet Gupta
2016-11-03 17:02 ` Daniel Lezcano
2016-11-03 17:45 ` Vineet Gupta
2016-10-31 22:48 ` [PATCH 3/9] ARC: timer: gfrc: boot print alongside other timers Vineet Gupta
2016-11-03 17:09 ` Daniel Lezcano
2016-11-03 17:47 ` Vineet Gupta
2016-11-03 17:51 ` Daniel Lezcano
2016-10-31 22:48 ` [PATCH 4/9] ARC: time: move time_init() out of the driver Vineet Gupta
2016-11-03 17:15 ` Daniel Lezcano
2016-10-31 22:48 ` [PATCH 5/9] ARC: breakout aux handling into a seperate header Vineet Gupta
2016-11-01 7:49 ` Noam Camus
2016-10-31 22:48 ` [PATCH 6/9] ARC: move mcip.h into include/soc and adjust the includes Vineet Gupta
2016-11-03 17:20 ` Daniel Lezcano
2016-10-31 22:48 ` [PATCH 7/9] ARC: breakout timer stuff into a seperate header Vineet Gupta
2016-11-03 17:25 ` Daniel Lezcano
2016-10-31 22:48 ` [PATCH 8/9] ARC: timer: rename config options Vineet Gupta
2016-10-31 22:48 ` [PATCH 9/9] clocksource: import ARC timer driver Vineet Gupta
2016-11-01 0:01 ` kbuild test robot
2016-11-01 0:45 ` Vineet Gupta
2016-11-01 20:42 ` Daniel Lezcano
2016-11-01 20:57 ` Vineet Gupta
2016-11-02 0:19 ` Daniel Lezcano
2016-11-02 1:03 ` Vineet Gupta
2016-11-03 16:40 ` Vineet Gupta
2016-11-03 16:50 ` Daniel Lezcano
2016-11-03 17:57 ` Vineet Gupta
2016-11-03 18:11 ` Daniel Lezcano
2016-11-03 18:43 ` Vineet Gupta
2016-11-03 17:33 ` Daniel Lezcano
2016-11-03 18:14 ` Daniel Lezcano
2016-11-03 18:47 ` Vineet Gupta
2016-11-03 17:28 ` [PATCH 0/9] Move ARC timer code into drivers/clocksource/ Daniel Lezcano
2016-11-01 20:01 ` [PATCH v2 3/3] clocksource: Add clockevent support to NPS400 driver Daniel Lezcano
2016-11-08 8:30 ` Noam Camus
2016-11-10 10:34 ` Daniel Lezcano
2016-11-10 13:00 ` Noam Camus
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