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* rtc: rtc-mv: Add support for clk to avoid lockupsAndrew Lunn2013-03-08
| | | | | | | | | | | | | The Marvell RTC on Kirkwood makes use of the runit clock. Ensure the driver clk_prepare_enable() this clock, otherwise there is a danger the SoC will lockup when accessing RTC registers with the clock disabled. Reported-by: Simon Baatz <gmbnomis@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Simon Baatz <gmbnomis@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* gpio: mvebu: Add clk support to prevent lockupAndrew Lunn2013-03-08
| | | | | | | | | | | | | | The kirkwood SoC GPIO cores use the runit clock. Add code to clk_prepare_enable() runit, otherwise there is a danger of locking up the SoC by accessing the GPIO registers when runit clock is not ticking. Reported-by: Simon Baatz <gmbnomis@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Simon Baatz <gmbnomis@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: <stable@vger.kernel.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* ARM: kirkwood: of_serial: fix clock gating by removing clock-frequencyJason Cooper2013-03-08
| | | | | | | | | | | | | | | | | | | | | | | | When DT support for kirkwood was first introduced, there was no clock infrastructure. As a result, we had to manually pass the clock-frequency to the driver from the device node. Unfortunately, on kirkwood, with minimal config or all module configs, clock-frequency breaks booting because of_serial doesn't consume the gate_clk when clock-frequency is defined. The end result on kirkwood is that runit gets gated, and then the boot fails when the kernel tries to write to the serial port. Fix the issue by removing the clock-frequency parameter from all kirkwood dts files. Booted on dreamplug without earlyprintk and successfully logged in via ttyS0. Reported-by: Simon Baatz <gmbnomis@gmail.com> Tested-by: Simon Baatz <gmbnomis@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* arm: kirkwood: add Device Tree informations for the SDIO controllerThomas Petazzoni2013-02-28
| | | | | | | | Now that the SDIO controller has a Device Tree binding, let's use it in kirkwood.dtsi. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* ARM: kirkwood: fix missing #interrupt-cells propertySebastian Hesselbarth2013-01-22
| | | | | | | | | The gpio controller on kirkwood can provide interrupts but is missing the #interrupt-cells property. This patch just adds it to both gpio controllers. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* ARM: Kirkwood: Fix missing clk for USB device.Andrew Lunn2013-01-06
| | | | | | | | | Without the clock being held by a driver, it gets turned off at a bad time causing the SoC to lockup. This is often during reboot. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Stefan Peter <s.peter@mpl.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* Merge tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-12-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM SoC updates for Marvell mvebu/kirkwood from Olof Johansson: "This is a branch with updates for Marvell's mvebu/kirkwood platforms. They came in late-ish, and were heavily interdependent such that it didn't make sense to split them up across the cross-platform topic branches. So here they are (for the second release in a row) in a branch on their own." * tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (88 commits) arm: l2x0: add aurora related properties to OF binding arm: mvebu: add Aurora L2 Cache Controller to the DT arm: mvebu: add L2 cache support dma: mv_xor: fix error handling path dma: mv_xor: fix error checking of irq_of_parse_and_map() dma: mv_xor: use request_irq() instead of devm_request_irq() dma: mv_xor: clear the window override control registers arm: mvebu: fix address decoding armada_cfg_base() function ARM: mvebu: update defconfig with I2C and RTC support ARM: mvebu: Add SATA support for OpenBlocks AX3-4 ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4 ARM: mvebu: Add support for I2C on OpenBlocks AX3-4 ARM: mvebu: Add support for I2C controllers in Armada 370/XP arm: mvebu: Add hardware I/O Coherency support arm: plat-orion: Add coherency attribute when setup mbus target arm: dma mapping: Export a dma ops function arm_dma_set_mask arm: mvebu: Add SMP support for Armada XP arm: mm: Add support for PJ4B cpu and init routines arm: mvebu: Add IPI support via doorbells arm: mvebu: Add initial support for power managmement service unit ...
| * arm: kirkwood: Convert XOR instantiation to DT.Andrew Lunn2012-11-20
| | | | | | | | | | | | | | | | Use DT to describe the two XOR DMA engines on Kirkwood. Remove the C code initialization. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| * ARM: Kirkwood: switch to DT clock providersAndrew Lunn2012-11-20
| | | | | | | | | | | | | | | | | | With true DT clock providers available switch Kirkwood clock setup in DT- enabled boards. While AUXDATA can be removed completely from bus probing, some devices still don't know about DT. Therefore, some clkdev aliases are created until these devices also move to DT. Signed-off-by: Andrew Lunn <andrew@lunn.ch>
* | ARM: Kirkwood: Make use of mvebu pincltl and gpio driversAndrew Lunn2012-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | Select the generic mvebu kirkwood pincltr driver and generic mvebu gpio driver. This requires minor changes to the DT, and the calls to configure plat-orion gpio driver are removed. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Michael Walle <michael@walle.cc> Tested-by: Simon Baatz <gmbnomis@gmail.com> Tested-by: Jamie Lentin <jm@lentin.co.uk> Tested-by: Joshua Coombs <josh.coombs@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* | ARM: Kirkwood: Convert all DT boards to EHCI via DT.Andrew Lunn2012-11-23
|/ | | | | | | | | | Now that the EHCI driver has DT support, drop old style configuration of it and add DT in its place. Since all the boards enable the EHCI, enable it by default in kirkwood.dtsi. Any new boards which don't have USB can specifically disable it. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* Crypto: CESA: Add support for DT based instantiation.Andrew Lunn2012-09-22
| | | | | | | | | | | | | | | Based on work by Michael Walle and Jason Cooper. Added support for getting the interrupt number and address of SRAM from DT. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net> Conflicts: arch/arm/mach-kirkwood/board-dt.c
* ATA: sata_mv: Add device tree supportAndrew Lunn2012-07-27
| | | | | | | | | | Add support for instantiating this driver from device tree, and add the necassary DT information to the kirkwood.dtsi file. This is based on previous work by Michael Walle and Jason Cooper. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Josh Coombs <josh.coombs@gmail.com>
* ARM: Orion: DTify the watchdog timer.Andrew Lunn2012-07-27
| | | | | | | | | Add device tree support to the Orion watchdog timer, and enable its use in the kirkwood devices using device tree. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com> Tested-by: Simon Baatz <gmbnomis@gmail.com>
* ARM: Orion: Add arch support needed for I2C via DT.Andrew Lunn2012-07-27
| | | | | | | | | | | The MV64XXX I2C driver needs a clock in order to calculate the baud rate factors. So add an clk to the clk tree. Also add the base DT properties for kirkwood devices. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Conflicts: arch/arm/mach-kirkwood/common.c
* ARM: kirkwood: use devicetree for orion-spiMichael Walle2012-07-27
| | | | | | | | | | Populate the devices with auxdata to set the device names which are used by clkdev to lookup the clocks. Signed-off-by: Michael Walle <micheal@walle.cc> Signed-off-by: Andrew Lunn <andrew@lunn.ch> --- v2: Add interrupts properties, although not used.
* ARM: Orion: DT support for IRQ and GPIO ControllersAndrew Lunn2012-07-27
| | | | | | | | | | | | | Both IRQ and GPIO controllers can now be represented in DT. The IRQ controllers are setup first, and then the GPIO controllers. Interrupts for GPIO lines are placed directly after the main interrupts in the interrupt space. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Josh Coombs <josh.coombs@gmail.com> Tested-by: Simon Baatz <gmbnomis@gmail.com>
* ARM: Kirkwood: Replace mrvl with marvellAndrew Lunn2012-07-25
| | | | | | | It has been decided to use marvell, not mrvl, in the compatibility property. Search & replace. Signed-off-by: Andrew Lunn <andrew@lunn.ch>
* kirkwood: Allow nand to be configured via. devicetreeJamie Lentin2012-05-14
| | | | | | | | | Add default configuration for NAND, to be enabled in your board config. Ensure clock gating is set appropriately when the NAND is enabled. Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* ARM: kirkwood: use devicetree for rtc-mvJason Cooper2012-03-16
| | | | | Signed-off-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Arnd Bergmann <arnd@arndb.de>
* ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0Jason Cooper2012-03-16
| | | | | | | | | | | Define both uarts in kirkwood.dtsi as they are common to all kirkwood SoCs. Each board may enable all or none of them, so they are disabled by default. uart0 is enabled for the dreamplug. tclk can vary for each board, so we leave it undefined in the kirkwood dtsi. Each board can then set it as appropriate when enabling the uart. Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* ARM: kirkwood: fdt: use mrvl ticker symbolJason Cooper2012-03-16
| | | | | | Also, use inclusive register size for uart0. Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* ARM: kirkwood: add dreamplug (fdt) support.Jason Cooper2012-02-27
Initially, copied guruplug-setup.c and did s/guruplug/dreamplug/g. Then, switched to SPI based NOR flash. After talking to Arnd Bergman, chose an incremental approach to adding devicetree support. First, we use the dtb to tell us we are on the dreamplug, then we gradually port over drivers. Driver porting will start with the uart (see next patch), and progress from there. Possibly, spi/flash/partitions will be next. When done, board-dt.c will no longer be dreamplug specific, and dt's can be made for the other kirkwood boards. Signed-off-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>