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2013-01-14ARM: imx: correct low-power mode settingShawn Guo1-0/+3
The hardware reset value of bit CCM_CLPCR_LPM enables WAIT mode (WAIT_UNCLOCKED) by default. However this is undesirable because WAIT mode should only be enabled when there is a driver managing ARM clock gating. Correct the initial power mode to WAIT_CLOCKED (disable WAIT mode). While at it, the power mode after resuming is also set back to WAIT_CLOCKED from STOP_POWER_OFF. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-12-13Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-0/+1
Pull ARM SoC device tree conversions and enablement from Olof Johansson: "Continued device tree conversion and enablement across a number of platforms; Kirkwood, tegra, i.MX, Exynos, zynq and a couple of other smaller series as well. ux500 has seen continued conversion for platforms. Several platforms have seen pinctrl-via-devicetree conversions for simpler multiplatform. Tegra is adding data for new devices/drivers, and Exynos has a bunch of new bindings and devices added as well. So, pretty much the same progression in the right direction as the last few releases." Fix up conflicts as per Olof. * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (185 commits) ARM: ux500: Rename dbx500 cpufreq code to be more generic ARM: dts: add missing ux500 device trees ARM: ux500: Stop registering the PCM driver from platform code ARM: ux500: Move board specific GPIO info out to subordinate DTS files ARM: ux500: Disable the MMCI gpio-regulator by default ARM: Kirkwood: remove kirkwood_ehci_init() from new boards ARM: Kirkwood: Add support LED of OpenBlocks A6 ARM: Kirkwood: Convert to EHCI via DT for OpenBlocks A6 ARM: kirkwood: Add NAND partiton map for OpenBlocks A6 ARM: kirkwood: Add support second I2C bus and RTC on OpenBlocks A6 ARM: kirkwood: Add support DT of second I2C bus ARM: kirkwood: Convert mplcec4 board to pinctrl ARM: Kirkwood: Convert km_kirkwood to pinctrl ARM: Kirkwood: support 98DX412x kirkwoods with pinctrl ARM: Kirkwood: Convert IX2-200 to pinctrl. ARM: Kirkwood: Convert lsxl boards to pinctrl. ARM: Kirkwood: Convert ib62x0 to pinctrl. ARM: Kirkwood: Convert GoFlex Net to pinctrl. ARM: Kirkwood: Convert dreamplug to pinctrl. ARM: Kirkwood: Convert dockstar to pinctrl. ...
2012-11-22ARM i.MX6: remove gate_mask from pllv3Sascha Hauer1-9/+9
Now that the additional enable bits in the enet PLL are handled as gates, the gate_mask is identical for all plls. Remove the gate_mask from the code and use the BM_PLL_ENABLE bit for enabling/disabling the PLL. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-11-22ARM i.MX6: Fix ethernet PLL clocksSascha Hauer1-1/+19
In current code the ethernet PLL is not handled correctly. The PLL runs at 500MHz and has different outputs. Only the enet reference clock is implemented. This patch changes the PLL so that it outputs 500MHz and adds the additional outputs as dividers. This now matches the datasheet which says: > This PLL synthesizes a low jitter clock from 24 MHz reference clock. > The PLL outputs a 500 MHz clock. The reference clocks generated by this PLL are: > • Ref_PCIe = 125 MHz > • Ref_SATA = 100 MHz > • Ref_ethernet, which is configurable based on the PLL_ENET[1:0] register field. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-11-22ARM i.MX6: rename PLLs according to datasheetSascha Hauer1-4/+4
In recent reference manuals the PLLs were renumbered. PLL8 now is PLL6 and vice versa. Change the code according to the reference manual to avoid confusion. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-11-16ARM i.MX6: fix ldb_di_sel muxSteffen Trumtrar1-1/+1
This adds the mmdc_ch1 as a possible parent for the ldb_di clk. According to the datasheet, this clock can be selected at this mux. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-11-16ARM: imx: enable cpufreq for imx6qShawn Guo1-0/+1
It enables cpufreq support for imx6q with generic cpufreq-cpu0 driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-10-15ARM: imx: include common.h rather than mach/common.hShawn Guo1-1/+2
Rename mach-imx/include/mach/common.h to mach-imx/common.h and update all users to include common.h rather than mach/common.h. It also removes an unneeded inclusion to common.h in mach-imx/devices/devices.c. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-20Merge tag 'imx-dt-3.7-2' of git://git.linaro.org/people/shawnguo/linux-2.6 ↵Olof Johansson1-0/+7
into next/dt From Shawn Guo: This is the second round of imx-dt patches for 3.7. It's based on and imx-dt-3.7 and imx-clk-dt-lookup which have already been pulled. * tag 'imx-dt-3.7-2' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: imx6q: use pll2_pfd2_396m as the enfc_sel's parent ARM: dts: imx6q-sabrelite: add usbotg pinctrl support ARM: dts: imx6q-sabrelite: add usbmisc device
2012-09-19ARM: imx6q: use pll2_pfd2_396m as the enfc_sel's parentHuang Shijie1-0/+7
The gpmi-nand driver can support the ONFI nand chip's EDO (extra data out) mode in the asynchrounous mode. In the asynchrounous mode 5, the gpmi needs 100MHz clock for the IO. But with the pll2_pfd0_352m, we can not get the 100MHz clock. So choose pll2_pfd2_396m as enfc_sel's parent. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-12Merge tag 'imx-clk-dt-lookup' of ↵Olof Johansson1-39/+5
git://git.linaro.org/people/shawnguo/linux-2.6 into next/dt It replaces the clk_register_clkdev in imx6q clock driver with DT lookup. It depends on Mike's clk-3.7 branch. * tag 'imx-clk-dt-lookup' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: imx6q: replace clk_register_clkdev with clock DT lookup Resolved context add/remove conflict in arch/arm/boot/dts/imx6q.dtsi
2012-09-11ARM: imx6q: replace clk_register_clkdev with clock DT lookupShawn Guo1-39/+5
It really becomes an 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 imx6q 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>
2012-08-17ARM i.MX6q: Add virtual 1/3.5 dividers in the LDB clock pathPhilipp Zabel1-3/+5
The ldb_di[01]_podf is implemented as a clk-divider that divides by 1 or 2. In reality, the ldb_di[01]_ipu_div dividers divide by either 3.5 or 7. Adding a fixed factor of 1/3.5 fixes their children's clock rates. This should probably be converted to rate table based dividers, once available. Cc: <stable@vger.kernel.org> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-23Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-3/+19
Pull arm-soc device tree description updates from Arnd Bergmann: "This branch contains two kinds of updates: Some platforms in the process of getting converted to device tree based booting, and the platform specific patches necessary for that are included here. Other platforms are already converted, so we just need to update the actual device tree source files and the binding documents to add support for new board and new drivers. In the future we will probably separate those into two branches, and in the long run, the plan is to move the device tree source files out of the kernel repository, but that has to wait until we have completed a much larger portion of the binding documents." Fix up trivial conflicts in arch/arm/mach-imx/clk-imx6q.c due to newly added clkdev registers next to a few removed unnecessary ones. * tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits) ARM: LPC32xx: Add PWM to base dts file ARM: EXYNOS: mark the DMA channel binding for SPI as preliminary ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS5 platforms ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOS5 ARM: EXYNOS: Add spi clock support for EXYNOS5 ARM: dts: Add nodes for spi controllers for SAMSUNG EXYNOS4 platforms ARM: EXYNOS: Enable platform support for SPI controllers for EXYNOX4 ARM: EXYNOS: Fix the incorrect hierarchy of spi controller bus clock ARM: ux500: Remove PMU platform registration when booting with DT ARM: ux500: Remove temporary snowball_of_platform_devs enablement structure ARM: ux500: Ensure vendor specific properties have the vendor's identifier pinctrl: pinctrl-nomadik: Append sleepmode property with vendor specific prefixes ARM: ux500: Move rtc-pl031 registration to Device Tree when enabled ARM: ux500: Enable the AB8500 RTC for all DT:ed DB8500 based devices ARM: ux500: Correctly reference IRQs supplied by the AB8500 from Device Tree ARM: ux500: Apply ab8500-debug node do the db8500 DT structure ARM: ux500: Add a ab8500-usb Device Tree node for db8500 based devices ARM: ux500: Add db8500 Device Tree node for misc/ab8500-pwm ARM: ux500: Add db8500 Device Tree node for ab8500-sysctrl ARM: ux500: Enable LED heartbeat functionality on Snowbal via DT ...
2012-07-12ARM: imx6q: add usbphy clocksRichard Zhao1-1/+6
Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-12ARM: imx6q: add usb controller clock lookupsRichard Zhao1-0/+4
Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-03ARM: imx6q: add clocks for gpmi-nandHuang Shijie1-1/+7
Add clocks for gpmi-nand. Signed-off-by: Huang Shijie <shijie8@gmail.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-02ARM: imx6q: remove unneeded clkdev lookupsShawn Guo1-3/+0
There are a number of clkdev lookups left over from commit b0286f2 (ARM: imx6q: prepare and enable init on clks directly instead of clk_get first), remove them since they are not needed now. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-02ARM: imx6q: add clock for apbh-dmaHuang Shijie1-1/+2
add clock for apbh-dma. Signed-off-by: Huang Shijie <shijie8@gmail.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-06-30ARM: imx6q: fix suspend regression caused by common clk migrationShawn Guo1-2/+4
When moving to common clk framework, the imx6q clks rom and mmdc_ch1_axi get different on/off states than old clk driver, which breaks suspend function. There might be a better way to manage these clocks, but let's takes the old clk driver approach to fix the regression first. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-06-07Merge tag 'imx-clk-common-fixes' of ↵Olof Johansson1-15/+7
git://git.pengutronix.de/git/imx/linux-2.6 into fixes From Sascha Hauer: "Some fixes for the fresh i.MX common clock support" Resolved trivial conflict in arch/arm/plat-mxc/include/mach/common.h. * tag 'imx-clk-common-fixes' of git://git.pengutronix.de/git/imx/linux-2.6: ARM: imx6q: prepare and enable init on clks directly instead of clk_get first ARM i.MX: remove now unnecessary argument from mxc_timer_init ARM: i.MX: change timer clock from ipg to perclk ARM i.MX5: fix gpt peripheral clock path Signed-off-by: Olof Johansson <olof@lixom.net>
2012-05-16ARM: imx6q: prepare and enable init on clks directly instead of clk_get firstRichard Zhao1-14/+6
This also removes the usboh3 clk from the initially turned on clocks which leaked in from an internal development tree. Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-16ARM i.MX: remove now unnecessary argument from mxc_timer_initSascha Hauer1-1/+1
As the timer code now does a clk_get to get its clock we don't need the struct clk argument anymore. This also changes the alternative EPIT timer to do a clk_get. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-11ARM: imx6q_sabrelite: clk_register_clkdev cko1 for sgtl5000Richard Zhao1-0/+3
Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-11ARM: imx6q: add ssi1_ipg clk_lookupRichard Zhao1-4/+6
It's used by audio drivers. Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-11ARM: imx: rename uart and fec device tree nodesShawn Guo1-11/+11
It has been pointed out by device tree maintainer for several times that the generic names 'serial' and 'ethernet' should be used for those devices per ePAPR. Renames imx uart and fec device tree nodes to stop them being bad examples. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-05-09ARM: i.MX6: implement clocks using common clock frameworkShawn Guo1-0/+439
Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>