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linux/drivers/clocksource/timer-atlas7.c

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ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
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>
2013-06-01 23:39:40 -07:00
clocksource: sirf/marco+prima2: drop usage of CLOCK_TICK_RATE Since CSR SiRF was converted to multi platform in cf82e0e (ARM: sirf: enable multiplatform support) the symbol CLOCK_TICK_RATE isn't the platform specific definition any more, but a global dummy value. There was no harm introduced in cf82e0e because the global value happens to match the old platform specific one, still this dummy value isn't intended to be used and will hopefully disappear soon, so introduce a local #define and use that instead. Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2013-11-11 21:06:11 +01:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource: marco: Rename marco to atlas7 marco project is replaced by atlas7 and we should obliterate its all traces. Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-01-12 00:04:43 +08:00
clocksource: sirf: Remove hard-coded clock rate The customers may want to adjust the whole PLL and dividers according to different user scenerios, and this causes the parent clock of sirf clocksource not be divided exactly by the current hard-coded 1MHz clock rate. This patch removes the hard-coded rate and makes the clocksource driver more adaptive to the external changes. Signed-off-by: Yanchang Li <yl22@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-11-11 20:42:52 +08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource: sirf: Disable counter before re-setting it According to HW spec, we have to disable the counter before setting it, if we don't this, in pressure test, sometimes the timer might not generate interrupt any more. And this patch also fixes a typo for register set by changing 0x7 to 0x3. 0x7 is loop mode in HW, but here we are using oneshot 0x3. Signed-off-by: Hao Liu <Hao.Liu@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-09-29 01:50:06 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clockevents/drivers/atlas7: Migrate to new 'set-state' interface Migrate atlas7 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Barry Song <baohua@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-18 16:24:43 +05:30
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource: Use a plain u64 instead of cycle_t There is no point in having an extra type for extra confusion. u64 is unambiguous. Conversion was done with the following coccinelle script: @rem@ @@ -typedef u64 cycle_t; @fix@ typedef cycle_t; @@ -cycle_t +u64 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org>
2016-12-21 20:32:01 +01:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource: sirf: Disable counter before re-setting it According to HW spec, we have to disable the counter before setting it, if we don't this, in pressure test, sometimes the timer might not generate interrupt any more. And this patch also fixes a typo for register set by changing 0x7 to 0x3. 0x7 is loop mode in HW, but here we are using oneshot 0x3. Signed-off-by: Hao Liu <Hao.Liu@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-09-29 01:50:06 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clockevents/drivers/atlas7: Migrate to new 'set-state' interface Migrate atlas7 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Barry Song <baohua@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-18 16:24:43 +05:30
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clockevents/drivers/atlas7: Migrate to new 'set-state' interface Migrate atlas7 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Barry Song <baohua@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-18 16:24:43 +05:30
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/atlas7: Convert to hotplug state machine Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Barry Song <baohua@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.310333816@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-13 17:17:07 +00:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/atlas7: Convert to hotplug state machine Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Barry Song <baohua@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.310333816@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-13 17:17:07 +00:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
clockevents/drivers/atlas7: Migrate to new 'set-state' interface Migrate atlas7 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Barry Song <baohua@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-06-18 16:24:43 +05:30
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource: marco: Rename marco to atlas7 marco project is replaced by atlas7 and we should obliterate its all traces. Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-01-12 00:04:43 +08:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
clockevents/drivers/atlas7: Set ->min_delta_ticks and ->max_delta_ticks In preparation for making the clockevents core NTP correction aware, all clockevent device drivers must set ->min_delta_ticks and ->max_delta_ticks rather than ->min_delta_ns and ->max_delta_ns: a clockevent device's rate is going to change dynamically and thus, the ratio of ns to ticks ceases to stay invariant. Make the timer-atlas7 clockevent driver initialize these fields properly. This patch alone doesn't introduce any change in functionality as the clockevents core still looks exclusively at the (untouched) ->min_delta_ns and ->max_delta_ns. As soon as this has changed, a followup patch will purge the initialization of ->min_delta_ns and ->max_delta_ns from this driver. Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Barry Song <baohua@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Nicolai Stange <nicstange@gmail.com> Signed-off-by: John Stultz <john.stultz@linaro.org>
2017-03-30 22:10:21 +02:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
clockevents/drivers/atlas7: Set ->min_delta_ticks and ->max_delta_ticks In preparation for making the clockevents core NTP correction aware, all clockevent device drivers must set ->min_delta_ticks and ->max_delta_ticks rather than ->min_delta_ns and ->max_delta_ns: a clockevent device's rate is going to change dynamically and thus, the ratio of ns to ticks ceases to stay invariant. Make the timer-atlas7 clockevent driver initialize these fields properly. This patch alone doesn't introduce any change in functionality as the clockevents core still looks exclusively at the (untouched) ->min_delta_ns and ->max_delta_ns. As soon as this has changed, a followup patch will purge the initialization of ->min_delta_ns and ->max_delta_ns from this driver. Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Barry Song <baohua@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Nicolai Stange <nicstange@gmail.com> Signed-off-by: John Stultz <john.stultz@linaro.org>
2017-03-30 22:10:21 +02:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
clocksource: marco: Fix the affinity set for local timer of CPU1 irqchip will reject the affinity set to CPUs which is not online yet. but in the CPU1 wakeup stage, OS only sets CPU1 to be online after local timer is set, so that causes the irq_set_affinity not work. this patch moves to irq_force_affinity() for the low level boot stage. Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-05-07 14:46:44 +08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/atlas7: Convert to hotplug state machine Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Barry Song <baohua@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.310333816@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-13 17:17:07 +00:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
clocksource/atlas7: Convert to hotplug state machine Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Barry Song <baohua@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.310333816@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-13 17:17:07 +00:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers/atlas7: Convert init function to return error The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-06-06 18:01:09 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
ARM: PRIMA2: Divorce timer-marco from local timer API Separate the marco local timers from the local timer API. This will allow us to remove ARM local timer support in the near future and gets us closer to moving this driver to drivers/clocksource. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Barry Song <baohua.song@csr.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-02-15 17:02:16 -08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/atlas7: Convert to hotplug state machine Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Barry Song <baohua@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.310333816@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-13 17:17:07 +00:00
cpu/hotplug: Cleanup state names When the state names got added a script was used to add the extra argument to the calls. The script basically converted the state constant to a string, but the cleanup to convert these strings into meaningful ones did not happen. Replace all the useless strings with 'subsys/xxx/yyy:state' strings which are used in all the other places already. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Link: http://lkml.kernel.org/r/20161221192112.085444152@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-12-21 20:19:54 +01:00
clocksource/atlas7: Convert to hotplug state machine Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Barry Song <baohua@kernel.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153338.310333816@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-13 17:17:07 +00:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers/atlas7: Convert init function to return error The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-06-06 18:01:09 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource:sirf: remove the hardcode for the clk of timers Nobody want to know the connection between io clk and timer clk, so exposing this information to timer module is not reasonable. this patch moves to define the timers' clk in dt. Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com>
2014-05-05 19:30:04 +08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource: sirf: Fix incorrect clock enable counter for timer In the clocksource driver, we didn't explicitly enable the clock. it makes the clk reference counter wrong. We didn't encounter any hang issue because the tick's clock input has been open and is shared by some other hardware components, but if we don't enable those components in kernel, in the stage of disabling unused clk in kernel boot, Linux tick hangs. This patch fixes it. it does an explicit prepare and enable to the clock input, and increases the usage counter of the clk. Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-07-03 20:52:51 +08:00
clocksource: marco: Rename marco to atlas7 marco project is replaced by atlas7 and we should obliterate its all traces. Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-01-12 00:04:43 +08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource: sirf: Remove hard-coded clock rate The customers may want to adjust the whole PLL and dividers according to different user scenerios, and this causes the parent clock of sirf clocksource not be divided exactly by the current hard-coded 1MHz clock rate. This patch removes the hard-coded rate and makes the clocksource driver more adaptive to the external changes. Signed-off-by: Yanchang Li <yl22@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2014-11-11 20:42:52 +08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource: marco: Rename marco to atlas7 marco project is replaced by atlas7 and we should obliterate its all traces. Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2015-01-12 00:04:43 +08:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers/atlas7: Convert init function to return error The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-06-06 18:01:09 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers/atlas7: Convert init function to return error The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-06-06 18:01:09 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers/atlas7: Convert init function to return error The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-06-06 18:01:09 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers/atlas7: Convert init function to return error The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-06-06 18:01:09 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers/atlas7: Convert init function to return error The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-06-06 18:01:09 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers/atlas7: Convert init function to return error The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2016-06-06 18:01:09 +02:00
ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructures this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
2012-12-20 19:37:32 +08:00
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE The CLOCKSOURCE_OF_DECLARE macro is used widely for the timers to declare the clocksource at early stage. However, this macro is also used to initialize the clockevent if any, or the clockevent only. It was originally suggested to declare another macro to initialize a clockevent, so in order to separate the two entities even they belong to the same IP. This was not accepted because of the impact on the DT where splitting a clocksource/clockevent definition does not make sense as it is a Linux concept not a hardware description. On the other side, the clocksource has not interrupt declared while the clockevent has, so it is easy from the driver to know if the description is for a clockevent or a clocksource, IOW it could be implemented at the driver level. So instead of dealing with a named clocksource macro, let's use a more generic one: TIMER_OF_DECLARE. The patch has not functional changes. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-26 16:56:11 +02:00