Commit Graph

34 Commits

Author SHA1 Message Date
Fabio Estevam d68c380590 clk: mxs: Include clk mxs header file
Fix the following sparse warnings:

drivers/clk/mxs/clk-imx28.c:72:5: warning: symbol 'mxs_saif_clkmux_select' was not declared. Should it be static?
drivers/clk/mxs/clk-imx28.c:156:12: warning: symbol 'mx28_clocks_init' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: fixed $SUBJECT line]
2013-05-30 18:27:24 -07:00
Olof Johansson 83c15f4c05 Merge branch 'depends/clk-for-3.10' into next/cleanup
Bringin in clk subsystem dependencies needed by sunxi.

* depends/clk-for-3.10: (26 commits)
  clk: sunxi: drop an unnecesary kmalloc
  clk: sunxi: drop CLK_IGNORE_UNUSED
  clk: sunxi: Add support for AXI, AHB, APB0 and APB1 gates
  clk: divider: Introduce CLK_DIVIDER_ALLOW_ZERO flag
  clk: mvebu: Use common of_clk_init() function
  clk: fix clk_mux::flags kerneldoc
  clk: allow reentrant calls into the clk framework
  clk: abstract locking out into helper functions
  clk: zynq: Add missing zynq clk header
  clk: sunxi: rename compatible strings
  arm: sunxi: Add useful information about sunxi clocks
  clk: arm: sunxi: Add a new clock driver for sunxi SOCs
  clk: ux500: Fix prcmu clocks registration
  ARM: imx: adapt clk_busy_mux to new clk_mux struct
  clk: Add composite clock type
  clk: add table lookup to mux
  clk: Fix incorrect return type in clk.c
  clk: prima2: fix return value check in sirfsoc_of_clk_init()
  clk:SPEAr1340: Correct parent clock configuration
  documentation: clk: fix couple of misspelling
  ...
2013-04-11 03:38:03 -07:00
Shawn Guo 0c672aae28 clk: mxs: remove the use of mach level IO accessor
It removes the use of mach level IO accessor __mxs_setl/clrl, and hence
removes mach header inclusion from clock driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
2013-04-01 16:30:04 +08:00
Shawn Guo 38d6590f0f clk: mxs: get base address from device tree
Instead of using the static definitions, get clkctrl and digctl base
addresses with mapping from device tree.

Use macro on variable is not nice, but it's done here to save huge
pointless diff stat.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
2013-04-01 16:30:04 +08:00
Shawn Guo 2efb950465 ARM: mxs: look up timrot clock from device tree
Change call clk_get_sys() to of_clk_get() to look up timrot clock from
device tree, so that the clk_register_clkdev() call for timrot can be
saved in clock driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:02 +08:00
Shawn Guo 633ef4c7d1 ARM: mxs: use CLKSRC_OF helper to initialize timer
Select CLKSRC_OF and use clocksource_of_init() to initialize timer, so
that the call to mxs_timer_init() in clock driver can be removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:30:01 +08:00
Fabio Estevam 30ee400614 clk: mxs: Fix sparse warnings
Fix the following sparse warnings:

drivers/clk/mxs/clk.c:17:1: warning: symbol 'mxs_lock' was not declared. Should it be static?
drivers/clk/mxs/clk.c:19:5: warning: symbol 'mxs_clk_wait' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-03-19 12:58:41 -07:00
Linus Torvalds bab588fcfb arm-soc: soc-specific updates
This is a larger set of new functionality for the existing SoC families,
 including:
 
 * vt8500 gains support for new CPU cores, notably the Cortex-A9 based wm8850
 * prima2 gains support for the "marco" SoC family, its SMP based cousin
 * tegra gains support for the new Tegra4 (Tegra114) family
 * socfpga now supports a newer version of the hardware including SMP
 * i.mx31 and bcm2835 are now using DT probing for their clocks
 * lots of updates for sh-mobile
 * OMAP updates for clocks, power management and USB
 * i.mx6q and tegra now support cpuidle
 * kirkwood now supports PCIe hot plugging
 * tegra clock support is updated
 * tegra USB PHY probing gets implemented diffently
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC-specific updates from Arnd Bergmann:
 "This is a larger set of new functionality for the existing SoC
  families, including:

   - vt8500 gains support for new CPU cores, notably the Cortex-A9 based
     wm8850

   - prima2 gains support for the "marco" SoC family, its SMP based
     cousin

   - tegra gains support for the new Tegra4 (Tegra114) family

   - socfpga now supports a newer version of the hardware including SMP

   - i.mx31 and bcm2835 are now using DT probing for their clocks

   - lots of updates for sh-mobile

   - OMAP updates for clocks, power management and USB

   - i.mx6q and tegra now support cpuidle

   - kirkwood now supports PCIe hot plugging

   - tegra clock support is updated

   - tegra USB PHY probing gets implemented diffently"

* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits)
  ARM: prima2: remove duplicate v7_invalidate_l1
  ARM: shmobile: r8a7779: Correct TMU clock support again
  ARM: prima2: fix __init section for cpu hotplug
  ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3)
  ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3)
  arm: socfpga: Add SMP support for actual socfpga harware
  arm: Add v7_invalidate_l1 to cache-v7.S
  arm: socfpga: Add entries to enable make dtbs socfpga
  arm: socfpga: Add new device tree source for actual socfpga HW
  ARM: tegra: sort Kconfig selects for Tegra114
  ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114
  ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC
  ARM: tegra: Fix build error for gic update
  ARM: tegra: remove empty tegra_smp_init_cpus()
  ARM: shmobile: Register ARM architected timer
  ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move
  ARM: shmobile: r8a7779: Correct TMU clock support
  ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT
  ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles
  ARM: mxs: use apbx bus clock to drive the timers on timrotv2
  ...
2013-02-21 15:27:22 -08:00
Torben Hohn 2fb318ff75 ARM: mxs: use apbx bus clock to drive the timers on timrotv2
timer resolution of ~32us is pretty low.
v2 has 32bits resolution, so we have quite some headroom, and
can use the 24MHz clock.
v1 has only 16bits, so we only increase v2.

So we just exchange the timrot clock in imx28.
On imx23 we have timrotv1 and everything stays the same.

Signed-off-by: Torben Hohn <torbenh@linutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-02-05 11:19:46 +08:00
Fabio Estevam 38a8b096f8 clk: mxs: Index is always positive
Fix the following warnings when building with W=1 option:

drivers/clk/mxs/clk-imx23.c: In function 'mx23_clocks_init':
drivers/clk/mxs/clk-imx23.c:149:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
drivers/clk/mxs/clk-imx23.c:165:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
...

drivers/clk/mxs/clk-imx28.c: In function 'mx28_clocks_init':
drivers/clk/mxs/clk-imx28.c:227:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
drivers/clk/mxs/clk-imx28.c:244:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-01-15 16:16:27 -08:00
Fabio Estevam f58945392a clk: mxs: Use a better name for the USB PHY clock
Use a better name for the USB PHY clock.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-11-16 09:28:19 -08:00
Linus Torvalds 7fe0b14b72 spi: Updates for v3.7
No framework work here, only a bunch of driver updates of varying sizes:
 
 - Factoring out of the core hardware support from the MXS MMC driver by
   Marek Vasut to allow the hardware to also be used for SPI.
 - Lots of error handling cleanups from Guenter Roeck
 - Removal of the existing Tegra driver which is quite comprehensively
   broken as detailed in the changelog for the removal.
 - DT suppport for the PL022 and GPIO drivers.
 - pinctrl support for OMAP and PL022.
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Merge tag 'spi-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc

Pull spi updates from Mark Brown:
 "No framework work here, only a bunch of driver updates of varying
  sizes:

   - Factoring out of the core hardware support from the MXS MMC driver
     by Marek Vasut to allow the hardware to also be used for SPI.
   - Lots of error handling cleanups from Guenter Roeck
   - Removal of the existing Tegra driver which is quite comprehensively
     broken as detailed in the changelog for the removal.
   - DT suppport for the PL022 and GPIO drivers.
   - pinctrl support for OMAP and PL022."

Pulling from Mark Brown as Grant Likely is still busy moving.

* tag 'spi-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc: (53 commits)
  spi: remove completely broken Tegra driver
  spi/imx: set the inactive state of the clock according to the clock polarity
  spi/pl022: get/put resources on suspend/resume
  spi/pl022: use more managed resources
  spi/pl022: Devicetree support w/o platform data
  spi/s3c64xx: Don't free controller_data on non-dt platforms
  spi: omap2-mcspi: add pinctrl support
  spi/pl022: adopt pinctrl support
  spi: omap2-mcspi: Cleanup the omap2_mcspi_txrx_dma function
  spi/gpio: Fix stub for spi_gpio_probe_dt()
  spi/mxs: Make the SPI block clock speed configurable via DT
  spi: spi-sh-hspi: drop frees of devm_ alloc'd data
  spi/pl022: Fix chipselects pointer computation
  spi: spi-tle62x0: Use module_spi_driver macro
  mxs/spi: Rework the mxs_ssp_timeout to be more readable
  mxs/spi: Decrement the DMA/PIO border
  mxs/spi: Increment the transfer length only if transfer succeeded
  mxs/spi: Fix issues when doing long continuous transfer
  spi: spi-gpio: Add DT bindings
  spi: spi-gpio: store chipselect information in private structure
  ...
2012-10-02 17:26:42 -07:00
Linus Torvalds 84be4ae2c0 ARM: soc: soc-specific updates, take 2
This branch converts the MXS Freescale platform to use irqdomains and
 sparse IRQ, in preparation for DT probing and multiplatform kernels.
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Merge tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM soc-specific updates, take 2 from Olof Johansson:
 "This branch converts the MXS Freescale platform to use irqdomains and
  sparse IRQ, in preparation for DT probing and multiplatform kernels."

* tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: mxs: remove mach/irqs.h
  ARM: mxs: select SPARSE_IRQ
  ARM: mxs: adopt irq_domain support for icoll driver
  ARM: mxs: select MULTI_IRQ_HANDLER
  ARM: mxs: retrieve timer irq from device tree
  gpio/mxs: adopt irq_domain support for mxs gpio driver
2012-10-01 18:35:58 -07:00
Shawn Guo 53f9443da6 clk: mxs: replace imx23 clk_register_clkdev with clock DT lookup
It really becomes a maintenance issue that every time a device needs
to look up (clk_get) a clock we have to patch kernel clock file to call
clk_register_clkdev for that clock.

Since clock DT support which is meant to resolve clock lookup in device
tree is in place, the patch moves imx23 client devices' clock lookup
over to device tree, so that any new lookup to be added at later time
can just get done in DT instead of kernel.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-11 14:45:46 +08:00
Shawn Guo b598b9f311 clk: mxs: replace imx28 clk_register_clkdev with clock DT lookup
It really becomes a maintenance issue that every time a device needs
to look up (clk_get) a clock we have to patch kernel clock file to call
clk_register_clkdev for that clock.

Since clock DT support which is meant to resolve clock lookup in device
tree is in place, the patch moves imx28 client devices' clock lookup
over to device tree, so that any new lookup to be added at later time
can just get done in DT instead of kernel.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-11 14:45:46 +08:00
Shawn Guo eeca6e6040 ARM: mxs: retrieve timer irq from device tree
Rather than using the static timer irq definition, we should retrieve
timer irq from device tree for better.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-03 09:31:50 +08:00
Marek Vasut 1308239858 mmc: spi: Pull out the SSP clock configuration function
Pull out the MMC clock configuration function and make it
into SSP clock configuration function, so it can be used by
the SPI driver too.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:53:00 +01:00
Mike Turquette c782c384d2 Merge branch 'clk/mxs-for-3.6' of git://git.linaro.org/people/shawnguo/linux-2.6 into clk-next 2012-07-12 09:48:19 -07:00
Richard Zhao 79ddff903e clk: mxs: clk_register_clkdev mx28 usb clocks
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Tested-by: Subodh Nijsure <snijsure@grid-net.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-12 13:13:33 +08:00
Mike Turquette cb479129ef Merge branch 'clk/mxs-for-3.6' of git://git.linaro.org/people/shawnguo/linux-2.6 into clk-3.6 2012-07-11 17:57:49 -07:00
Lauri Hintsala 64e2bc4130 clk: mxs: imx28: decrease the frequency of ref_io1 for SSP2 and SSP3
SSP0 and SSP1 use ref_io0 which has decreased frequency. Expand
the frequency fix for ref_io1 to get SSP2 and SSP3 to work.

Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-05 09:36:44 +08:00
Shawn Guo 275d58025f clk: mxs: add clkdev lookup for pwm
Add pwm clock lookup for imx23 and imx28 booting from device tree.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-06-27 21:04:29 +08:00
Fabio Estevam 8c6facab8e clk: mxs: Fix the GPMI clock name
The correct name for the GPMI clock is 'gpmi-nand'.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-06-27 21:04:28 +08:00
Huang Shijie bcf6c3d46f clk: mxs: rename the gpmi clock for imx28
rename the clock name from `8000c000.gpmi` to `8000c000.gpmi-nand`.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-06-27 21:04:27 +08:00
Marc Kleine-Budde d03ac61daa clk: mxs: fix clock lookup after freeing init memory
The struct clk_lookup are marked as __initdata, resulting in being
removed from memory after the kernel finished booting. However this
leads to a NULL pointer de-ref if loading a module which uses clk_get.

This patch removes the __initdata from the struct clk_lookup.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-06-25 16:51:48 -07:00
Shawn Guo d6dc55c185 clk: mxs: fix ref_io clock definition
The definition of clocks ref_io0 and ref_io1 were inverted.  It causes
a mmc regression on some boards right away.  Fix the regression by
correcting the ref_io clock definition.

Reported-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-06-25 16:51:48 -07:00
Shawn Guo ef9b4d3996 mmc: mxs-mmc: get rid of the use of cpu_is_xxx
The register HW_SSP_VERSION is broken for ssp version detection,
as the address of the register is different between imx23 and imx28.
Let's use platform_device_id to detect the device, so that the use
of cpu_is_xxx can be removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:05:31 +08:00
Shawn Guo 8c92013643 dma: mxs-dma: make platform_device_id more generic
Rewrite mxs_dma_is_apbh and mxs_dma_is_apbx in order to support
other SoCs like imx6q and reform the platform_device_id for the
better further dt support.

Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Huang Shijie <b32955@freescale.com>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Vinod Koul <vinod.koul@intel.com>
2012-05-12 13:32:17 +08:00
Shawn Guo 2954ff395b ARM: mxs: add initial device tree support for imx23-evk board
It adds initial device tree support for imx23-evk board, and only
serial console is enabled.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
2012-05-12 13:32:17 +08:00
Dong Aisheng bc3a59c1b7 ARM: mxs: add initial device tree support for imx28-evk board
This patch includes basic dt support which can boot via nfs rootfs.

Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
2012-05-12 13:32:16 +08:00
Shawn Guo 50260924af ARM: mxs: remove now unused timer_clk argument from mxs_timer_init
With old mxs clock support removed, the timer_clk argument of
mxs_timer_init is unused now, so remove it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-09 00:02:43 +08:00
Shawn Guo 7d81397cd9 clk: mxs: add clock support for imx28
Add imx28 clock support based on common clk framework.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-09 00:02:38 +08:00
Shawn Guo ff261b7f64 clk: mxs: add clock support for imx23
Add imx23 clock support based on common clk framework.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-09 00:02:36 +08:00
Shawn Guo 23b5e15a29 clk: mxs: add mxs specific clocks
Add mxs specific clocks, pll, reference clock (PFD), integer divider
and fractional divider.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-09 00:02:35 +08:00