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* Merge tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-12-1444-192/+1574
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| * Merge tag 'mvebu_cache_l2x0_for_3.8' of ↵Olof Johansson2012-11-304-0/+18
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.infradead.org/users/jcooper/linux into late/mvebu From Jason Cooper: mvebu cache-l2x0 for v3.8 - Add support for l2x0 cache on mvebu boards - Depends on mvebu/everything * tag 'mvebu_cache_l2x0_for_3.8' of git://git.infradead.org/users/jcooper/linux: 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
| | * arm: mvebu: add Aurora L2 Cache Controller to the DTGregory CLEMENT2012-11-272-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Yehuda Yitschak <yehuday@marvell.com> Tested-and-reviewed-by: Yehuda Yitschak <yehuday@marvell.com> Tested-and-reviewed-by: Lior Amsalem <alior@marvell.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| | * arm: mvebu: add L2 cache supportGregory CLEMENT2012-11-272-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-and-reviewed-by: Yehuda Yitschak <yehuday@marvell.com> Tested-and-reviewed-by: Lior Amsalem <alior@marvell.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
| * | Merge tag 'mvebu_everything_for_3.8' of ↵Olof Johansson2012-11-3044-190/+1556
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.infradead.org/users/jcooper/linux into late/mvebu From Jason Cooper. Unfortunately this is a combined branch with all mvebu code as one drop, something we normally try to avoid and instead slice vendor topics across our branches. Hopefully we can avoid doing this again for 3.9! mvebu everything for v3.8 - due to the complex interdependencies of the received pull requests I decided to keep this in one branch the way they recommended merging it - this was their first attempt at doing pull requests, we'll work on it with them - added SMP support for mvebu SoCs - added coherency fabric - added mdio and mvneta drivers - added mirabox board - added openblocks ax3-4 board - clock fixes and improvements - converted mv_xor driver to devicetree (extensive series in itself) * tag 'mvebu_everything_for_3.8' of git://git.infradead.org/users/jcooper/linux: (85 commits) 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: mvebu: Add support for coherency fabric in mach-mvebu arm: mvebu: update defconfig to include XOR driver arm: mvebu: update defconfig to include network driver ... Signed-off-by: Olof Johansson <olof@lixom.net>
| | * Merge branch 'mvebu-misc-fixes' of ↵Jason Cooper2012-11-243-7/+6
| | |\ | | | | | | | | | | | | git://github.com/MISL-EBU-System-SW/mainline-public into mvebu/everything
| | | * arm: mvebu: fix address decoding armada_cfg_base() functionThomas Petazzoni2012-11-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The armada_cfg_base() function returns the base address of the registers that allow to configure the decoding for a particular address window. On Armada 370/XP, the lower windows have more configuration registers (4 registers) than the higher windows (2 registers). This armada_cfg_base() takes this into account by doing a different offset calculation depending on the window number, but this offset calculation was wrong for the higher windows. Even though we were not using high window numbers until now (only window 0 is used to map the BootROM, needed for SMP), we use this function at boot time to disable all windows to ensure that nothing remains intialized from what the bootloader has done. Unfortunately, the U-Boot on the OpenBlocks AX3-4 uses a window with a high number (above 8) to remap the BootROM. And then when the kernel boots, it remaps the BootROM in window 0. Normally, this is not a problem, because all windows have previously been disabled. Except that due to our wrong offset calculation, the windows with high numbers were not properly disabled, leading to the BootROM being mapped twice. The visible result of this bug was that the kernel was unable to get the second CPU started on the OpenBlocks AX3-4 platform. With this fix, all windows are properly cleared at boot time, the BootROM is remapped only once in window 0, and the second CPU boots fine. Thanks a lot to Lior Amsamlen <alior@marvell.com> for his help in debugging this problem. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> --- Strictly speaking, this bug was introduced in 3.7, but since the only platforms supported in 3.7 were Armada 370 and Armada XP, and there was anyway no SMP support at this time, it isn't really worth the effort to push this patch in 3.7.
| | | * Merge tag 'marvell-armadaxp-smp-for-3.8' of ↵Thomas Petazzoni2012-11-2219-9/+639
| | | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | github.com:MISL-EBU-System-SW/mainline-public into mevbu-dt-additions SMP support for Armada XP The purpose of this series is to add the SMP support for the Armada XP SoCs. Beside the SMP support itself brought by the last 3 commits, this series also adds the support for the coherency fabric unit and the power management service unit. The coherency fabric is responsible for ensuring hardware coherency between all CPUs and between CPUs and I/O masters. This unit is also available for Armada 370 and will be used in an incoming patch set for hardware I/O cache coherency. The power management service unit is responsible for powering down and waking up CPUs and other SOC units. Conflicts: arch/arm/mach-mvebu/armada-370-xp.c
| | | * \ Merge branch 'for-jason-1/cleanup' into mevbu-dt-additionsThomas Petazzoni2012-11-222-6/+5
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| | | | * | arm: mvebu: fix typo in machine name for Armada 370/XPThomas Petazzoni2012-11-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
| | | | * | arm: mvebu: don't list all boards in dt compat field for Armada 370/XPThomas Petazzoni2012-11-141-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of listing explicitly all boards in the .dt_compat field of the DT_MACHINE_START structure for Armada 370/XP, use instead a compatible string that is common to all boards using the Armada 370/XP. This allows to add new boards by just using a different Device Tree, without having to modify the source code of the kernel. Note that the name of the array containing the compatible string is also renamed, to reflect the fact that it no longer contains the list of all boards. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
| | | | * | arm: mvebu: fix compatible string in armada-370-xp.dtsiThomas Petazzoni2012-11-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the Device Tree files for Armada 370 and XP SoCs and boards use the "armada-370-xp" common compatible string, except armada-370-xp.dtsi which was specifying "armada_370_xp". Fix this inconsistency by making armada-370-xp.dtsi declare a compatible string of "armada-370-xp" like everyone else. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
| | * | | | Merge tag 'marvell-openblocks-i2c-sata-for-3.8' of ↵Jason Cooper2012-11-224-0/+44
| | |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://github.com/MISL-EBU-System-SW/mainline-public into mvebu/everything Marvell SATA and I2C enabling for OpenBlocks AX3-4
| | | * | | ARM: mvebu: update defconfig with I2C and RTC supportThomas Petazzoni2012-11-211-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have support for the I2C busses on Armada 370/XP, and support for the RTC on the OpenBlocks AX3-4 platform, include the necessary options in mvebu_defconfig. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | ARM: mvebu: Add SATA support for OpenBlocks AX3-4Thomas Petazzoni2012-11-211-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables SATA support on the OpenBlocks AX3-4. It has one internal SATA port, and an external eSATA port. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4Nobuhiro Iwamatsu2012-11-211-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OpenBlocks AX3-4 has a Seiko Instruments S-35390A as the RTC controller. This patch enables this RTC device in the OpenBlocks AX3-4 Device Tree. [Thomas Petazzoni: updated with other OpenBlocks changes, rephrased commit log.] Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | ARM: mvebu: Add support for I2C on OpenBlocks AX3-4Nobuhiro Iwamatsu2012-11-211-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OpenBlocks AX3-4 board, based on the Armada XP SoC, has an I2C bus. This patch enables this bus and sets the clock frequency of the bus. [Thomas Petazzoni: updated with other changes on OpenBlocks, rephrased commit log.] Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | ARM: mvebu: Add support for I2C controllers in Armada 370/XPNobuhiro Iwamatsu2012-11-211-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Armada 370 and Armada XP have the same I2C controllers as previous Marvell SoCs, so the existing mv64xxx-i2c driver works fine. [Thomas Petazzoni: updated on top of other Armada 370/XP changes, rephrased the commit log]. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | Merge tag 'marvell-net-xor-defconfig-for-3.8' of ↵Thomas Petazzoni2012-11-201-0/+7
| | | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | github.com:MISL-EBU-System-SW/mainline-public into test-the-merge Marvell mvebu defconfig updates for 3.8 Conflicts: arch/arm/configs/mvebu_defconfig Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * \ \ \ Merge tag 'marvell-xor-board-dt-changes-3.8-v2' of ↵Thomas Petazzoni2012-11-206-23/+158
| | | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | github.com:MISL-EBU-System-SW/mainline-public into test-the-merge Marvell XOR driver DT changes for 3.8 Conflicts: arch/arm/boot/dts/armada-xp.dtsi Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * \ \ \ \ Merge tag 'marvell-xor-cleanup-dt-binding-3.8' of ↵Thomas Petazzoni2012-11-204-137/+73
| | | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | github.com:MISL-EBU-System-SW/mainline-public into test-the-merge Marvell XOR driver cleanup and DT binding for 3.8
| | | * \ \ \ \ \ Merge tag 'marvell-neta-dt-clk-updates-3.8' of ↵Thomas Petazzoni2012-11-206-12/+4
| | | |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | github.com:MISL-EBU-System-SW/mainline-public into test-the-merge Marvell Ethernet DT update for clk support
| | | * \ \ \ \ \ \ Merge tag 'marvell-boards-net-for-3.8' of ↵Thomas Petazzoni2012-11-207-1/+274
| | | |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | github.com:MISL-EBU-System-SW/mainline-public into test-the-merge Marvell boards changes related to Ethernet, for 3.8 Conflicts: arch/arm/boot/dts/armada-370-xp.dtsi arch/arm/boot/dts/armada-xp-db.dts Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | * | \ \ \ \ \ \ \ Merge tag 'marvell-hwiocc-for-3.8' of ↵Jason Cooper2012-11-217-4/+86
| | |\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://github.com/MISL-EBU-System-SW/mainline-public into mvebu/everything Add hardware I/O coherency support for Armada 370/XP The purpose of this patch set is to add hardware I/O Coherency support for Armada 370 and Armada XP. Theses SoCs come with an unit called coherency fabric. A beginning of the support for this unit have been introduced with the SMP patch set. This series extend this support: the coherency fabric unit allows to use the Armada XP and the Armada 370 as nearly coherent architectures. The third patches enables this new feature and register our own set of DMA ops, to benefit this hardware enhancement. The first patches exports a dma operation function needed to register our own set of dma ops. The second patch introduces a new flag for the address decoding configuration in order to be able to set the memory windows as shared memory.
| | | * | | | | | | | | arm: mvebu: Add hardware I/O Coherency supportGregory CLEMENT2012-11-213-1/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Armada 370 and XP come with an unit called coherency fabric. This unit allows to use the Armada 370/XP as a nearly coherent architecture. The coherency mechanism uses snoop filters to ensure the coherency between caches, DRAM and devices. This mechanism needs a synchronization barrier which guarantees that all the memory writes initiated by the devices have reached their target and do not reside in intermediate write buffers. That's why the architecture is not totally coherent and we need to provide our own functions for some DMA operations. Beside the use of the coherency fabric, the device units will have to set the attribute flag of the decoding address window to select the accurate coherency process for the memory transaction. This is done each device driver programs the DRAM address windows. The value of the attribute set by the driver is retrieved through the orion_addr_map_cfg struct filled during the early initialization of the platform. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Reviewed-by: Yehuda Yitschak <yehuday@marvell.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
| | | * | | | | | | | | arm: plat-orion: Add coherency attribute when setup mbus targetGregory CLEMENT2012-11-212-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent SoC such as Armada 370/XP came with the possibility to deal with the I/O coherency by hardware. In this case the transaction attribute of the window must be flagged as "Shared transaction". Once this flag is set, then the transactions will be forced to be sent through the coherency block, in other case transaction is driven directly to DRAM. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Reviewed-by: Yehuda Yitschak <yehuday@marvell.com> Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | | | | arm: dma mapping: Export a dma ops function arm_dma_set_maskGregory CLEMENT2012-11-212-3/+3
| | | | |_|_|_|_|_|_|/ | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Expose another DMA operations function: arm_dma_set_mask. This function will be added to a custom DMA ops for Armada 370/XP. Depending of its configuration Armada 370/XP can be set as a "nearly" coherent architecture. In this case the DMA ops is made of: - specific functions for this architecture - already exposed arm DMA related functions - the arm_dma_set_mask which was not exposed yet. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
| | * | | | | | | | | Merge tag 'marvell-armadaxp-smp-for-3.8' of ↵Jason Cooper2012-11-2119-9/+639
| | |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://github.com/MISL-EBU-System-SW/mainline-public into mvebu/everything SMP support for Armada XP The purpose of this series is to add the SMP support for the Armada XP SoCs. Beside the SMP support itself brought by the last 3 commits, this series also adds the support for the coherency fabric unit and the power management service unit. The coherency fabric is responsible for ensuring hardware coherency between all CPUs and between CPUs and I/O masters. This unit is also available for Armada 370 and will be used in an incoming patch set for hardware I/O cache coherency. The power management service unit is responsible for powering down and waking up CPUs and other SOC units.
| | | * | | | | | | | arm: mvebu: Add SMP support for Armada XPGregory CLEMENT2012-11-218-0/+213
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables SMP support on the Armada XP processor. It adds the mandatory functions to support SMP such as: the SMP initialization functions in platsmp.c, the secondary CPU entry point in headsmp.S and the CPU hotplug initial support in hotplug.c. Signed-off-by: Yehuda Yitschak <yehuday@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Reviewed-by: Will Deacon <will.deacon@arm.com>
| | | * | | | | | | | arm: mm: Add support for PJ4B cpu and init routinesGregory CLEMENT2012-11-213-1/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PJ4B is an implementation of the ARMv7 (such as the Cortex A9 for example) released by Marvell. This CPU is currently found in Armada 370 and Armada XP SoCs. This patch provides a support for the specific initialization of this CPU. Signed-off-by: Yehuda Yitschak <yehuday@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
| | | * | | | | | | | arm: mvebu: Add IPI support via doorbellsGregory CLEMENT2012-11-213-7/+94
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enhances the IRQ controller driver to add support for Inter-Processor-Interrupts that are needed to enable SMP support. Signed-off-by: Yehuda Yitschak <yehuday@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
| | | * | | | | | | | arm: mvebu: Add initial support for power managmement service unitGregory CLEMENT2012-11-215-1/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Armada 370 and Armada XP SOCs have a power management service unit which is responsible for powering down and waking up CPUs and other SOC units. This patch adds support for this unit. Signed-off-by: Yehuda Yitschak <yehuday@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
| | | * | | | | | | | arm: mvebu: Add support for coherency fabric in mach-mvebuGregory CLEMENT2012-11-216-1/+162
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Armada 370 and Armada XP SOCs have a coherency fabric unit which is responsible for ensuring hardware coherency between all CPUs and between CPUs and I/O masters. This patch provides the basic support needed for SMP. Signed-off-by: Yehuda Yitschak <yehuday@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Reviewed-by: Will Deacon <will.deacon@arm.com>
| | * | | | | | | | | Merge tag 'marvell-net-xor-defconfig-for-3.8' of ↵Jason Cooper2012-11-211-0/+7
| | |\ \ \ \ \ \ \ \ \ | | | | |_|_|_|_|_|/ / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://github.com/MISL-EBU-System-SW/mainline-public into mvebu/everything Marvell mvebu defconfig updates for 3.8 Conflicts: arch/arm/configs/mvebu_defconfig
| | | * | | | | | | | arm: mvebu: update defconfig to include XOR driverThomas Petazzoni2012-11-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | | | arm: mvebu: update defconfig to include network driverThomas Petazzoni2012-11-201-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | * | | | | | | | | Merge tag 'marvell-xor-board-dt-changes-3.8-v2' of ↵Jason Cooper2012-11-216-23/+158
| | |\ \ \ \ \ \ \ \ \ | | | | |_|_|_|_|_|/ / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://github.com/MISL-EBU-System-SW/mainline-public into mvebu/everything Marvell XOR driver DT changes for 3.8 Conflicts: arch/arm/boot/dts/armada-xp.dtsi
| | | * | | | | | | | arm: mvebu: add XOR engines to Armada XP .dtsiThomas Petazzoni2012-11-201-0/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | | | arm: mvebu: add XOR engines to Armada 370 .dtsiThomas Petazzoni2012-11-201-0/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | | | arm: dove: Convert Dove to DT XOR DMA engineSebastian Hesselbarth2012-11-202-10/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With DT support for Marvell XOR DMA engine, make use of it on Dove. Also remove the now redundant code in DT board init for xor engines. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | | | arm: kirkwood: Convert XOR instantiation to DT.Andrew Lunn2012-11-202-13/+40
| | | | |_|_|_|_|/ / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| | * | | | | | | | Merge tag 'marvell-xor-cleanup-dt-binding-3.8' of ↵Jason Cooper2012-11-214-137/+73
| | |\| | | | | | | | | | |_|_|_|_|/ / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://github.com/MISL-EBU-System-SW/mainline-public into mvebu/everything Marvell XOR driver cleanup and DT binding for 3.8
| | | * | | | | | dma: mv_xor: remove the pool_size from platform_dataThomas Petazzoni2012-11-201-16/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pool_size is always PAGE_SIZE, and since it is a software configuration paramter (and not a hardware description parameter), we cannot make it part of the Device Tree binding, so we'd better remove it from the platform_data as well. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | dma: mv_xor: remove hw_id field from platform_dataThomas Petazzoni2012-11-201-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need for the platform_data to give this ID, it is simply the channel number, so we can compute it inside the driver when registering the channels. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | dma: mv_xor: change the driver name to 'mv_xor'Thomas Petazzoni2012-11-204-10/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we got rid of the per-XOR channel 'mv_xor' driver, now the per-XOR engine driver that used to be called 'mv_xor_shared' can simply be named 'mv_xor'. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | dma: mv_xor: rename mv_xor_shared_platform_data to mv_xor_platform_dataThomas Petazzoni2012-11-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'struct mv_xor_shared_platform_data' used to be the platform_data structure for the 'mv_xor_shared', but this driver is going to be renamed simply 'mv_xor', so also rename its platform_data structure accordingly. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | dma: mv_xor: rename mv_xor_platform_data to mv_xor_channel_dataThomas Petazzoni2012-11-201-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mv_xor_platform_data used to be the platform_data structure associated to the 'mv_xor' driver. This driver no longer exists, and this data structure really contains the properties of each XOR channel part of a given XOR engine. Therefore 'struct mv_xor_channel_data' is a more appropriate name. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | dma: mv_xor: remove 'shared' from mv_xor_platform_dataThomas Petazzoni2012-11-201-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This member of the platform_data structure is no longer used, so get rid of it. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | arm: plat-orion: remove unused orion_xor_init_channels()Thomas Petazzoni2012-11-201-20/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that xor0 and xor1 are registered in a single driver manner, the orion_xor_init_channels() function has become useless. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| | | * | | | | | arm: plat-orion: convert the registration of the xor1 engine to the single ↵Thomas Petazzoni2012-11-201-52/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | driver Instead of registering one 'mv_xor_shared' device for the XOR engine, and then two 'mv_xor' devices for the XOR channels, pass the channels properties as platform_data for the main 'mv_xor_shared' device. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>