| 1bde9906414b46b6922464e7c91dd815e5f217b3 |
|
29-May-2014 |
Rob Herring <robh@kernel.org> |
ARM: timer-sp: allow getting timer1 clock from DT to fallback to legacy clock
The sp804 clocks may be specified in DT, but the kernel may still be using
legacy clocks. This is handled if a single clock for sp804 is present,
but not when 3 clocks are present.
This prevents Versatile platforms from breaking when the DT has clocks
added.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
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| 9cf31380598466a6ce1d95e68a3f89582eaddc13 |
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10-Jan-2014 |
Linus Walleij <linus.walleij@linaro.org> |
ARM: SP804: make Integrator/CP timer pick clock from DT
This modifies the SP804 driver so that the clock will be taken
from the device tree node for the timer.
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Rob Herring <rob.herring@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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| 9b12f3a86a2cb82ca6f3b0a0207b12c07dc701b7 |
|
16-Nov-2013 |
Stephen Boyd <sboyd@codeaurora.org> |
ARM: timer-sp: Switch to sched_clock_register()
The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface. Also mark the read function notrace since we're here
and failure to do so would cause ftrace to break.
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
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| 728fae6f6f73b34cf94afe6c87ce102889abc786 |
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14-Oct-2013 |
Michael Opdenacker <michael@free-electrons.com> |
ARM: 7856/1: timer-sp: remove deprecated IRQF_DISABLED
This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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| 887708f0ac7641e7d5131409cedf6774f26f0cb6 |
|
02-Mar-2013 |
Viresh Kumar <viresh.kumar@linaro.org> |
ARM: timer-sp: Set dynamic irq affinity
When a cpu goes to a deep idle state where its local timer is shutdown, it
notifies the time frame work to use the broadcast timer instead.
Unfortunately, the broadcast device could wake up any CPU, including an idle one
which is not concerned by the wake up at all.
This implies, in the worst case, an idle CPU will wake up to send an IPI to
another idle cpu.
This patch fixes this for ARM platforms using timer-sp, by setting
CLOCK_EVT_FEAT_DYNIRQ feature.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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| 38ff87f77af0b5a93fc8581cff1d6e5692ab8970 |
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02-Jun-2013 |
Stephen Boyd <sboyd@codeaurora.org> |
sched_clock: Make ARM's sched_clock generic for all architectures
Nothing about the sched_clock implementation in the ARM port is
specific to the architecture. Generalize the code so that other
architectures can use it by selecting GENERIC_SCHED_CLOCK.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[jstultz: Merge minor collisions with other patches in my tree]
Signed-off-by: John Stultz <john.stultz@linaro.org>
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| 870e2928cf3368ca9b06bc925d0027b0a56bcd8e |
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13-Mar-2013 |
Rob Herring <rob.herring@calxeda.com> |
ARM: integrator-cp: convert use CLKSRC_OF for timer init
Move the integrator-cp timer init to timer-sp.c and use CLKSRC_OF. There is
no reason to use the aliases, so drop them from the init code.
The integrator-cp timers are mistakenly called sp804 timers in the dts, but
in fact they are not sp804 dual timers, but single timers with the same
programming model. Fix the dts to reflect this.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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| 7a0eca712118862a2ac25413b7ee24deb27808ea |
|
25-Mar-2013 |
Rob Herring <rob.herring@calxeda.com> |
ARM: timer-sp: convert to use CLKSRC_OF init
This adds CLKSRC_OF based init for sp804 timer. The clock initialization is
refactored to support retrieving the clock(s) from the DT.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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| ea3aacf5f22c1002cac97985354658072232e280 |
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23-Nov-2012 |
Will Deacon <will.deacon@arm.com> |
ARM: 7586/1: sp804: set cpumask to cpu_possible_mask for clock event device
The SP804 driver statically initialises the cpumask of the clock event
device to be cpu_all_mask, which is derived from the compile-time
constant NR_CPUS. This breaks SMP_ON_UP systems where the interrupt
controller handling the sp804 doesn't have the irq_set_affinity callback
on the irq_chip, because the common timer code fails to identify the
device as cpu-local and ends up treating it as a broadcast device
instead.
This patch fixes the problem by using cpu_possible_mask at runtime,
which will correctly represent the possible CPUs when SMP_ON_UP is being
used.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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| a7bf61620831c5578e434429bc7fa0fd0219c40c |
|
12-Dec-2011 |
Rob Herring <rob.herring@calxeda.com> |
ARM: timer-sp: add sched_clock support
Add a sched_clock support for the sp804 timer. The clocksource timer
can optionally initialize itself as sched_clock timer.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
|
| 7c324d837f214290febac87da6815dff1ed41d04 |
|
21-Dec-2011 |
Linus Walleij <linus.walleij@linaro.org> |
ARM: 7243/1: sp804: modernize clock event registration
This removes the hardcoded shift value and lets the clockevent core
come up with suitable mult and div factors. Tested on the
Integrator/CP.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| 6f5ad96301d4b897f09a893d331a0b18b3fff6b1 |
|
22-Sep-2011 |
Russell King <rmk+kernel@arm.linux.org.uk> |
clk: timer-sp: convert to clk_prepare()/clk_unprepare()
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| 23828a7a976eb8dbe3b5f4e83584c3fe814b295b |
|
12-May-2011 |
Russell King <rmk+kernel@arm.linux.org.uk> |
clockevents: ARM sp804: obtain sp804 timer rate via clks
This allows platforms to specify the rate of the SP804 clockevent via
the clk subsystem. While ARM boards clock these at 1MHz, BCMRing also
has SP804 timers but are clocked at different rates.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| 57cc4f7de2b896ca79185e337eaf7ff9906c4656 |
|
12-May-2011 |
Russell King <rmk+kernel@arm.linux.org.uk> |
clockevents: ARM sp804: allow clockevent name to be specified
This allows platforms to specify the clcokevent name upon registration.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| 7ff550de99141cbd3be0129d563cc4554fdde9f6 |
|
12-May-2011 |
Russell King <rmk+kernel@arm.linux.org.uk> |
clocksource: ARM sp804: obtain sp804 timer rate via clks
This allows platforms to specify the rate of the SP804 clocksource via
the clk subsystem. While ARM boards clock these at 1MHz, BCMRing also
has SP804 timers but are clocked at different rates.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| fb593cf38fc426331275d761fefe13096070f56a |
|
12-May-2011 |
Russell King <rmk+kernel@arm.linux.org.uk> |
clocksource: ARM sp804: allow clocksource name to be specified
This allows platforms to specify the clocksource name upon
registration, which is necessary should they wish to register more
than one sp804 clocksource.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| bfe45e0be88d8a2e408226d473bff60da4a97d1f |
|
08-May-2011 |
Russell King <rmk+kernel@arm.linux.org.uk> |
clocksource: convert ARM 32-bit down counting clocksources
Convert SP804, MXC, Nomadik and Orion 32-bit down-counting clocksources
to generic mmio clocksource infrastructure.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Alessandro Rubini <rubini@unipv.it>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|
| 8a9618f5dfca35edb0d7ab6374ff586e2e9e989b |
|
06-Oct-2010 |
Rob Herring <r.herring@freescale.com> |
ARM: 6432/1: move timer-sp.c from versatile to common
From: Rob Herring <rob.herring@smooth-stone.com>
The timer-sp h/w used on versatile platforms can also be used for other
platforms, so move it to a common location.
Signed-off-by: Rob Herring <rob.herring@smooth-stone.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
|