- 31 Aug, 2012 1 commit
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Kelvin Cheung authored
This adds clock support to Loongson1B SoC using the common clock infrastructure. Signed-off-by:
Kelvin Cheung <keguang.zhang@gmail.com> Signed-off-by:
Mike Turquette <mturquette@linaro.org>
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- 28 Aug, 2012 1 commit
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Chao Xie authored
add mmp specific clocks including apbc cloks, apmu clocks, and pll2, fraction clocks Signed-off-by:
Chao Xie <xiechao.mail@gmail.com> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by:
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- 25 Aug, 2012 1 commit
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Linus Walleij authored
This converts the ARM RealView machine over to using the common clock. The approach is similar to the one used for the Integrator, and we're reusing the ICST wrapper code. We have to put the clock intialization in the timer init function for the clocks to be available when initializing the timer, keeping them in early_init() is too early for the common clk. Since we now have to go down and compile drivers/clk/versatile a CONFIG_COMMON_CLK_VERSATILE symbol has been added so the proper code gets compiled into the kernel for either machine. A leftover CLK_VERSATILE in the Integrator Kconfig was fixed up to use the new symbol as well. Tested on ARM RealView PB1176. Cc: Pawel Moll <pawel.moll@arm.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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- 24 Aug, 2012 1 commit
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Barry Song authored
Signed-off-by:
Barry Song <Baohua.Song@csr.com> Acked-by:
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- 19 Jul, 2012 1 commit
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Dinh Nguyen authored
Adding core definitions for Altera's SOCFPGA ARM platform. Mininum support for Altera's SOCFPGA Cyclone 5 hardware. Signed-off-by:
Dinh Nguyen <dinguyen@altera.com> Reviewed-by:
Pavel Machek <pavel@denx.de> Reviewed-by:
Rob Herring <rob.herring@calxeda.com> Reviewed-by:
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by:
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- 12 Jul, 2012 2 commits
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Rob Herring authored
This adds real clock support to Calxeda Highbank SOC using the common clock infrastructure. Signed-off-by:
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Linus Walleij authored
The ICST307 VCO clock has a shared driver in the ARM architecture. This patch provides a wrapper into the common clock framework so we can use the implementation in the ARM architecture without duplicating the code until all ARM platforms using this VCO are moved over. At that point we can merge the driver from the ARM platform into the generic file altogether. Cc: Russell King <linux@arm.linux.org.uk> Cc: Mike Turquette <mturquette@ti.com> Signed-off-by:
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- 11 Jul, 2012 2 commits
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Linus Walleij authored
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:
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Mark Brown authored
The WM831x and WM832x series of PMICs contain a flexible clocking subsystem intended to provide always on and system core clocks. It features: - A 32.768kHz crystal oscillator which can optionally be used to pass through an externally generated clock. - A FLL which can be clocked from either the 32.768kHz oscillator or the CLKIN pin. - A CLKOUT pin which can bring out either the oscillator or the FLL output. - The 32.768kHz clock can also optionally be brought out on the GPIO pins of the device. This driver fully supports the 32.768kHz oscillator and CLKOUT. The FLL is supported only in AUTO mode, the full flexibility of the FLL cannot currently be used. Due to a lack of access to systems where the core SoC has been converted to use the generic clock API this driver has been compile tested only. Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
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- 10 Jun, 2012 1 commit
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Linus Walleij authored
Remove more custom stuff by simply converting the Nomadik machine to use generic clocks and move the driver to drivers/clk. Acked-by:
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- 12 May, 2012 1 commit
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Viresh Kumar authored
All SPEAr SoC's contain PLLs. Their Fout is derived based on following equations - In normal mode vco = (2 * M[15:8] * Fin)/N - In Dithered mode vco = (2 * M[15:0] * Fin)/(256 * N) pll_rate = vco/2^p vco and pll are very closely bound to each other, "vco needs to program: mode, m & n" and "pll needs to program p", both share common enable/disable logic and registers. This patch adds in support for this type of clock. Signed-off-by:
Viresh Kumar <viresh.kumar@st.com> Reviewed-by:
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- 08 May, 2012 2 commits
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Sascha Hauer authored
Having fixed factors/dividers in hardware is a common pattern, so add a basic clock type doing this. It basically describes a fixed factor clock using a nominator and a denominator. Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by:
Shawn Guo <shawn.guo@linaro.org> [mturquette@linaro.org: constify parent_names in static init macro] [mturquette@linaro.org: copy/paste bug from mux in static init macro] [mturquette@linaro.org: fix error handling in clk_register_fixed_factor] [mturquette@linaro.org: improve division accuracy; thanks to Saravana] Signed-off-by:
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Shawn Guo authored
It switches mxs clock support to common clk framework based drivers. Signed-off-by:
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- 16 Mar, 2012 2 commits
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Mike Turquette authored
Many platforms support simple gateable clocks, fixed-rate clocks, adjustable divider clocks and multi-parent multiplexer clocks. This patch introduces basic clock types for the above-mentioned hardware which share some common characteristics. Based on original work by Jeremy Kerr and contribution by Jamie Iles. Dividers and multiplexor clocks originally contributed by Richard Zhao & Sascha Hauer. Signed-off-by:
Mike Turquette <mturquette@ti.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Tested-by:
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Mike Turquette authored
The common clock framework defines a common struct clk useful across most platforms as well as an implementation of the clk api that drivers can use safely for managing clocks. The net result is consolidation of many different struct clk definitions and platform-specific clock framework implementations. This patch introduces the common struct clk, struct clk_ops and an implementation of the well-known clock api in include/clk/clk.h. Platforms may define their own hardware-specific clock structure and their own clock operation callbacks, so long as it wraps an instance of struct clk_hw. See Documentation/clk.txt for more details. This patch is based on the work of Jeremy Kerr, which in turn was based on the work of Ben Herrenschmidt. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Tested-by:
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- 26 Nov, 2010 1 commit
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Jean-Christop PLAGNIOL-VILLARD authored
factorise some generic infrastructure to assist looking up struct clks for the ARM & SH architecture. as the code is identical at 99% put the arch specific code for allocation as example in asm/clkdev.h Signed-off-by:
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by:
Paul Mundt <lethal@linux-sh.org> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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