- 31 5月, 2013 1 次提交
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由 Linus Walleij 提交于
The U300 can support timer-based delays, so implement this. Skips past jiffy calibration. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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- 25 12月, 2012 1 次提交
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由 Stephen Warren 提交于
Now that the only field in struct sys_timer is .init, delete the struct, and replace the machine descriptor .timer field with the initialization function itself. This will enable moving timer drivers into drivers/clocksource without having to place a public prototype of each struct sys_timer object into include/linux; the intent is to create a single of_clocksource_init() function that determines which timer driver to initialize by scanning the device dtree, much like the proposed irqchip_init() at: http://www.spinics.net/lists/arm-kernel/msg203686.html Includes mach-omap2 fixes from Igor Grinberg. Tested-by: NRobert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: NStephen Warren <swarren@nvidia.com>
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- 13 8月, 2012 2 次提交
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由 Linus Walleij 提交于
This converts the U300 to use sparse IRQs, which is simple now that the number of machines are reduced. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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由 Linus Walleij 提交于
This gets rid of the separate u300.c file in mach-u300 since it can just as well live right in core.c, then we also get rid of the broadcasted <mach/platform.h> file that is not helping anyone. Put the interface to the system timer into a separate header. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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- 12 7月, 2012 1 次提交
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由 Linus Walleij 提交于
This converts the U300 clock implementation over to use the common struct clk and moves the implementation down into drivers/clk. Since VCO isn't used in tree it was removed, it's not hard to put it back in if need be. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> [mturquette@linaro.org: trivial Makefile conflict] Signed-off-by: NMike Turquette <mturquette@linaro.org>
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- 19 12月, 2011 1 次提交
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由 Marc Zyngier 提交于
sched_clock() is yet another blocker on the road to the single image. This patch implements an idea by Russell King: http://www.spinics.net/lists/linux-omap/msg49561.html Instead of asking the platform to implement both sched_clock() itself and the rollover callback, simply register a read() function, and let the ARM code care about sched_clock() itself, the conversion to ns and the rollover. sched_clock() uses this read() function as an indirection to the platform code. If the platform doesn't provide a read(), the code falls back to the jiffy counter (just like the default sched_clock). This allow some simplifications and possibly some footprint gain when multiple platforms are compiled in. Among the drawbacks, the removal of the *_fixed_sched_clock optimization which could negatively impact some platforms (sa1100, tegra, versatile and omap). Tested on 11MPCore, OMAP4 and Tegra. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Colin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Cc: STEricsson <STEricsson_nomadik_linux@list.st.com> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Ben Dooks <ben-linux@fluff.org> Tested-by: NJamie Iles <jamie@jamieiles.com> Tested-by: NTony Lindgren <tony@atomide.com> Tested-by: NKyungmin Park <kyungmin.park@samsung.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NKrzysztof Halasa <khc@pm.waw.pl> Acked-by: NKukjin Kim <kgene.kim@samsung.com> Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 23 6月, 2011 1 次提交
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由 Linus Walleij 提交于
Use the new clockevents_config_and_register() function to register the U300 clockevent, since that code requires ->cpumask to be set we set this even on this UP system to please the framework. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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- 06 6月, 2011 1 次提交
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由 Linus Walleij 提交于
The introduction of the mmio timer accidentally referenced the old clocksource struct which does not exist anymore. Fix this by using a simple string instead. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 24 5月, 2011 1 次提交
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由 Russell King 提交于
Convert ixp4xx, lpc32xx, mxc, netx, pxa, sa1100, tcc8k, tegra and u300 to use the generic mmio clocksource recently introduced. Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Acked-by: NEric Miao <eric.y.miao@gmail.com> Acked-by: N"Hans J. Koch" <hjk@hansjkoch.de> Acked-by: NColin Cross <ccross@android.com> Cc: Erik Gilling <konkers@android.com> Cc: Olof Johansson <olof@lixom.net> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 23 12月, 2010 3 次提交
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由 Russell King 提交于
Convert u300 to use the new sched_clock() infrastructure for extending 32bit counters to full 64-bit nanoseconds. Acked-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
ftrace requires sched_clock() to be notrace. Ensure that all implementations are so marked. Also make sure that they include linux/sched.h Also ensure OMAP clocksource read functions are marked notrace as they're used for sched_clock() too. Tested-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: NWill Deacon <will.deacon@arm.com> Tested-by: NMikael Pettersson <mikpe@it.uu.se> Tested-by: NEric Miao <eric.y.miao@gmail.com> Tested-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
In d7e81c26 (clocksource: Add clocksource_register_hz/khz interface) new interfaces were added which simplify (and optimize) the selection of the divisor shift/mult constants. Switch over to using this new interface. Acked-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 11 8月, 2010 2 次提交
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由 Linus Walleij 提交于
This moves the U300 timer code to look up its clock rate from the clock framework as is apropriate and also switches it over to use the generic code for *calc_mult_shift() on clock source and clock event. Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Linus Walleij 提交于
This removes the quirks to clock the U300 VIC and timer by custom hooks and moves the control out to the clock framework where it belongs. This is possible now that clocks are available early. Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 19 9月, 2009 1 次提交
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由 Linus Walleij 提交于
This adds the long debated sched_clock() override for the weak in-kernel jiffybased sched_clock(). The implementation is more or less identical to the one used in arch/arm/plat-omap/common.c and at last attempt to merge this the merge was postponed at the request of Peter Zijlstra due to pending discussions regarding generalized clocksource-based sched_clock() implementations by adding a flag to the clocksource. However that discussion ended up with the generic code needing to be rewritten and Paul Mundt see no reason not to proceed with this for the time being as it can be easily converted once the generic code is in place. Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 29 4月, 2009 1 次提交
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由 Linus Walleij 提交于
This adds core support for the ST-Ericsson U300 series platforms: U300, U330, U335 and U365. Supports memory mappings, interrupt controller, system timer (clocksource and clockevents), and binds to the existing drivers for the PrimeCells used in this design: PL190 (VIC), PL180 (MMC/SD host) and PL011 (UART). This is intented to serve as starting point for our mainling work, more patches to follow. Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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