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* powerpc: Repair device bindings documentationTrent Piepho2008-11-10
| | | | | | | | | | | | | | | | | | Commit d0fc2eaaf4c56a95f5ed29b6bfb609e19714fc16 "powerpc/fsl: Refactor device bindings" split out a number of device bindings from booting-without-of.txt into separate files. Having them all in one file was a frequent source of merge conflicts. However, in the next merge, 49997d75152b3d23c53b0fa730599f2f74c92c65, there was another conflict. Some of the bindings removed from booting-without-of.txt were mistakenly added back in and the copies in dts-bindings were kept as well. This patch re-removes "Freescale Display Interface" and "Freescale on board FPGA" and fixes the table of contents. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* of/spi: Support specifying chip select as active high via device treeWolfgang Ocker2008-10-21
| | | | | | | | The patch allows to specify that an SPI device needs an active high chip select. Signed-off-by: Wolfgang Ocker <weo@reccoware.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: Move include files to arch/powerpc/include/asmStephen Rothwell2008-08-03
| | | | | | | | | | | | | | from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Documentation cleanup: trivial misspelling, punctuation, and grammar ↵Matt LaPlante2008-07-26
| | | | | | | | corrections. Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge commit 'gcl/gcl-next'Benjamin Herrenschmidt2008-07-25
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| * of-bindings: Add binding documentation for SPI busses and devicesGrant Likely2008-07-22
| | | | | | | | | | | | | | Add documentation about how to describe SPI busses in the device tree. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
* | Merge commit 'origin/master'Benjamin Herrenschmidt2008-07-22
|\| | | | | | | | | Manually fixed up: drivers/net/fs_enet/fs_enet-main.c
| * Merge branch 'master' of ↵David S. Miller2008-07-18
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: Documentation/powerpc/booting-without-of.txt drivers/atm/Makefile drivers/net/fs_enet/fs_enet-main.c drivers/pci/pci-acpi.c net/8021q/vlan.c net/iucv/iucv.c
| * | net: OpenFirmware GPIO based MDIO bitbang driverLaurent Pinchart2008-05-30
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds an MDIO bitbang driver that uses the GPIO library and its OF bindings to access the bus I/Os. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | | powerpc: Update example SOC node in booting-without-of.txt.Scott Wood2008-07-16
| | | | | | | | | | | | | | | | | | | | | | | | Convert to DTS version 1, eliminate some obsolete practices, and correct some errors (compared to the actual 8540 device tree). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | powerpc: Document Freescale power management nodes, and the sleep property.Scott Wood2008-07-16
| |/ |/| | | | | | | Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | powerpc/fsl: Refactor device bindingsKumar Gala2008-07-14
| | | | | | | | | | | | | | Moved Freescale SoC related bindings out of booting-without-of.txt and into their own files. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | powerpc/CPM: Add i2c pins to dts and board setupJochen Friedrich2008-07-14
| | | | | | | | | | | | | | | | | | | | | | | | Initialize I2C pins on boards with CPM1/CPM2 controllers and document the i2c bus in booting-without-of. The boards don't have any I2C chips connected to the I2C bus, so unless some external chips are connected to the boards, this code is just an example of setting everything else up. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | powerpc/QE: implement support for the GPIO LIB APIAnton Vorontsov2008-06-10
| | | | | | | | | | | | | | | | This is needed to access QE GPIOs via Linux GPIO API. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-By: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | powerpc/sysdev: implement FSL GTM supportAnton Vorontsov2008-06-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GTM stands for General-purpose Timers Module and able to generate timer{1,2,3,4} interrupts. These timers are used by the drivers that need time precise interrupts (like for USB transactions scheduling for the Freescale USB Host controller as found in some QE and CPM chips), or these timers could be used as wakeup events from the CPU deep-sleep mode. Things unimplemented: 1. Cascaded (32 bit) timers (1-2, 3-4). This is straightforward to implement when needed, two timers should be marked as "requested" and configured as appropriate. 2. Super-cascaded (64 bit) timers (1-2-3-4). This is also straightforward to implement when needed, all timers should be marked as "requested" and configured as appropriate. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | [POWERPC] Cleanup mpic nodes in .dtsKumar Gala2008-06-02
| | | | | | | | | | | | | | | | Removed clock-frequency, big-endian, and built-in props as they aren't specified anywhere. Also added compatible = "chrp,open-pic" in the places it was missing. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | [POWERPC] Update booting-without-of for Freescale PCIe MSIJason Jin2008-06-02
|/ | | | | | | Binding document adding for Freescale PCIe MSI support. Signed-off-by: Jason Jin <Jason.jin@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* fbdev: powerpc: driver for Freescale 8610 and 5121 DIUYork Sun2008-04-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following features are supported: plane 0 works as a regular frame buffer, can be accessed by /dev/fb0 plane 1 has two AOIs (area of interest), can be accessed by /dev/fb1 and /dev/fb2 plane 2 has two AOIs, can be accessed by /dev/fb3 and /dev/fb4 Special ioctls support AOIs All /dev/fb* can be used as regular frame buffer devices, except hardware change can only be made through /dev/fb0. Changing pixel clock has no effect on other fbs. Limitation of usage of AOIs: AOIs on the same plane can not be horizonally overlapped AOIs have horizonal order, i.e. AOI0 should be always on top of AOI1 AOIs can not beyond phisical display area. Application should check AOI geometry before changing physical resolution on /dev/fb0 required command line parameters to preallocate memory for frame buffer diufb. optional command line parameters to set modes and monitor video=fslfb:[resolution][,bpp][,monitor] Syntax: Resolution xres x yres-bpp@refresh_rate, the -bpp and @refresh_rate are optional eg, 1024x768, 1280x1024, 1280x1024-32, 1280x1024@60, 1280x1024-32@60, 1280x480-32@60 Bpp bpp=32, bpp=24, or bpp=16 Monitor monitor=0, monitor=1, monitor=2 0 is DVI 1 is Single link LVDS 2 is Double link LVDS Note: switching monitor is a board feather, not DIU feather. MPC8610HPCD has three monitor ports to swtich to. MPC5121ADS doesn't have additional monitor port. So switching monirot port for MPC5121ADS has no effect. If compiled as a module, it takes pamameters mode, bpp, monitor with the same syntax above. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Timur Tabi <timur@freescale.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [POWERPC] Xilinx: of_serial support for Xilinx uart 16550.John Linn2008-04-24
| | | | | | | | | | | | | | The Xilinx 16550 uart core is not a standard 16550 because it uses word-based addressing rather than byte-based addressing. With additional properties it is compatible with the open firmware 'ns16550' compatible binding. This code updates the of_serial driver to handle the reg-offset and reg-shift properties to enable this core to be used. Signed-off-by: John Linn <john.linn@xilinx.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] QE: UCC nodes cleanupAnton Vorontsov2008-04-17
| | | | | | | | | | | | - get rid of `model = "UCC"' in the ucc nodes It isn't used anywhere, so remove it. If we'll ever need something like this, we'll use compatible property instead. - replace last occurrences of device-id with cell-index. Drivers are modified for backward compatibility's sake. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Implement support for the GPIO LIB APIAnton Vorontsov2008-04-16
| | | | | | | | | This implements support for the GPIO LIB API. Two calls are still unimplemented though: irq_to_gpio and gpio_to_irq. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Document the mv64x60 device tree bindingsDale Farnsworth2008-04-15
| | | | | | | | | Add the device tree bindings for the Marvell mv64x60 series of system controller chips in booting-without-of.text. Signed-off-by: Dale Farnsworth <dale@farnsworth.org> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Start removing linux,network-index in favour of aliasesDavid Gibson2008-03-26
| | | | | | | | | | | | | | | | | | | | | | | This patch alters the bootwrapper for a number of machines (roubhly all 4xx based cuboot or treeboot platforms) to use aliases instead of the linux,network-index hack to work out which MAC address to attach to which ethernet device node. The now obsolete linux,network-index properties are removed from the corresponding device trees. This won't break backwards compatiblity, because in cases where this fixup code is relevant, the device tree is part of the kernel image. The references to linux,network-index are removed from booting-without-of.txt. Not only is it now deprecated, but as a hack applicable only when the device tree blob and fixup code were in the same image, this property never belonged in booting-without-of.txt which describes the interface between the kernel and firmware or bootloaders which produce a device tree. By the time the device tree reaches the kernel, all the MAC addresses must be fully filled in. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* Merge branch 'virtex-for-2.6.25' of ↵Josh Boyer2008-02-06
|\ | | | | | | git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.25
| * [POWERPC] Xilinx: hwicap: update booting-without-of.txtStephen Neuendorffer2008-02-06
| | | | | | | | | | | | | | | | | | The ICAP device in Xilinx FPGAs differs slightly between different FPGAs. The driver needs an additional attribute in the device tree to distinguish this. Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | [POWERPC] 4xx: Add USB ehci-ppc-of dts bindings.Valentine Barshak2008-02-06
|/ | | | | | | Adds EHCI OF bindings to documentation. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* [POWERPC] fsl_spi: stop using device_type = "spi"Anton Vorontsov2008-01-28
| | | | | | | | | | | Also: - rename "fsl_spi" to "fsl,spi"; - add and use cell-index property, if found; - split probing code out of fsl_spi_init, thus we can call it for legacy device_type probing and new "compatible" probing. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] QE: get rid of most device_types and modelAnton Vorontsov2008-01-28
| | | | | | | | | | | Now we're searching for "fsl,qe", "fsl,qe-muram", "fsl,qe-muram-data" and "fsl,qe-ic". Unfortunately it's still impossible to remove device_type = "qe" from the existing device trees because older u-boots are looking for it. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Add docs for Freescale PowerQUICC SATA device tree nodesLi Yang2008-01-28
| | | | | Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Add docs for Freescale DMA & DMA channel device tree nodesZhang Wei2008-01-28
| | | | | | Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Ebony Zhu <ebony.zhu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Update MPC8610 HPCD to support audio driversTimur Tabi2008-01-23
| | | | | | | | Update the MPC8610 HPCD files to support the audio driver. Update booting-without-of.txt with information on the SSI device. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] QE: Add support for Freescale QUICCEngine UARTTimur Tabi2008-01-23
| | | | | | | | | | Add support for UART serial ports using a Freescale QUICCEngine. Update booting-without-of.txt to define new properties for a QE UART node. Update the MPC8323E-MDS device tree to add UCC5 as a UART. Update the QE library to support slow UCC devices and modules. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] QE: Add ability to upload QE firmwareTimur Tabi2008-01-23
| | | | | | | | | | | Define the layout of a binary blob that contains a QE firmware and instructions on how to upload it. Add function qe_upload_firmware() to parse the blob and perform the actual upload. Fully define 'struct rsp' in immap_qe.h to include the actual RISC Special Registers. Added description of a new QE firmware node to booting-without-of.txt. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] fsl_soc: add support to gianfar for fixed-link propertyVitaly Bordug2008-01-23
| | | | | | | | | fixed-link says: register new "Fixed/emulated PHY", i.e. PHY that not connected to the real MDIO bus. Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] 83xx: USB device tree cleanupsLi Yang2008-01-23
| | | | | | | Remove device_type = "usb" for 83xx SoC USB controller Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] #address-cells & #size-cells properties are not inheritedMark A. Greer2008-01-16
| | | | | | | | | Fix error in booting-without-of.txt that indicates that a node can inherit its #address-cells and #size-cells definitions from its parent's parent. This is not correct. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] booting-without-of: localbus should not include board nameAnton Vorontsov2008-01-16
| | | | | | | | | | | | | | | | Fix documentation once and for ever, because I'm pretty tired of repeating that I am merely following it. ;-) http://ozlabs.org/pipermail/linuxppc-dev/2007-December/048096.html http://ozlabs.org/pipermail/linuxppc-dev/2007-November/046977.html http://ozlabs.org/pipermail/linuxppc-dev/2007-November/046979.html http://ozlabs.org/pipermail/linuxppc-dev/2007-October/044411.html http://ozlabs.org/pipermail/linuxppc-dev/2007-October/044413.html Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Xilinx: Update booting-without-of.Stephen Neuendorffer2008-01-09
| | | | | | | | | | | | | | | | | | | | | This now better describes what the UBoot device tree generator actually does. In particular: 1) Nodes have a label derived from the device name, and a node name derived from a generic version of the device type, e.g. 'ethernet', 'serial', etc. 2) Usage of compound nodes (representing more than one device in the same IP) which actually works. This requires having a valid compatible node, and all the other things that a bus normally has. I've chosen 'xlnx,compound' as the bus name to describe these compound nodes. In addition, I've clarified some of the language relating to how mhs nodes should be represent in the device tree. Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* [POWERPC] qe: add function qe_clock_source()Timur Tabi2007-12-13
| | | | | | | | | | | | | Add function qe_clock_source() which takes a string containing the name of a QE clock source (as is typically found in device trees) and returns the matching enum qe_clock value. Update booting-without-of.txt to indicate that the UCC properties rx-clock and tx-clock are deprecated and replaced with rx-clock-name and tx-clock-name, which use strings instead of numbers to indicate QE clock sources. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] FSL: enet device tree cleanupsKumar Gala2007-12-12
| | | | | | | | | | | | | | * Removed address fields in ethernet nodes * Removed #address-cells, #size-cells from gianfar nodes * Added cell-index to gianfar and ucc ethernet nodes * Added enet[0..3] labels * Renamed compatible node for gianfar mdio to "fsl,gianfar-mdio" * Removed device_type = "mdio" The matching for gianfar mdio still supports the old "mdio"/"gianfar" combo but it is now considered deprecated. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Improved documentation of device tree 'ranges'Stephen Neuendorffer2007-12-05
| | | | | | | | | | This clarifies how 'ranges' properties are used, and in particular, how to get an identity mapping. Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Document rgmii-rxid and rgmii-txid phy-connection-typesKim Phillips2007-11-19
| | | | | | | | A h/w bug requires we program the PHY in RGMII mode for internal delay on the receive or transmit side only; document the new property values. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Merge branch 'for-2.6.24' of ↵Paul Mackerras2007-11-07
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
| * [POWERPC] Device tree bindings for Xilinx devicesGrant Likely2007-11-01
| | | | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] Fix cache line vs. block size confusionBenjamin Herrenschmidt2007-11-07
|/ | | | | | | | | | | | | | | | | | | | | We had an historical confusion in the kernel between cache line and cache block size. The former is an implementation detail of the L1 cache which can be useful for performance optimisations, the later is the actual size on which the cache control instructions operate, which can be different. For some reason, we had a weird hack reading the right property on powermac and the wrong one on any other 64 bits (32 bits is unaffected as it only uses the cputable for cache block size infos at this stage). This fixes the booting-without-of.txt documentation to mention the right properties, and fixes the 64 bits initialization code to look for the block size first, with a fallback to the line size if the property is missing. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'master' of ↵Linus Torvalds2007-10-12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits) [POWERPC] Add memchr() to the bootwrapper [POWERPC] Implement logging of unhandled signals [POWERPC] Add legacy serial support for OPB with flattened device tree [POWERPC] Use 1TB segments [POWERPC] XilinxFB: Allow fixed framebuffer base address [POWERPC] XilinxFB: Add support for custom screen resolution [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci [POWERPC] 4xx: Kilauea defconfig file [POWERPC] 4xx: Kilauea DTS [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x [POWERPC] 4xx: Add AMCC 405EX support to cputable.c [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig [POWERPC] 85xx: Killed <asm/mpc85xx.h> [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding. [POWERPC] mpc8272ads: Remove muram from the CPM reg property. [POWERPC] Make clockevents work on PPC601 processors ... Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
| * [POWERPC] spi: mode should be "cpu-qe" instead of "qe"Peter Korsgaard2007-10-08
| | | | | | | | | | | | | | | | Mode should be "cpu-qe" for QE in CPU mode. "qe" should be reserved for native QE mode. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * [POWERPC] cpm: Describe multi-user ram in its own device node.Scott Wood2007-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The way the current CPM binding describes available multi-user (a.k.a. dual-ported) RAM doesn't work well when there are multiple free regions, and it doesn't work at all if the region doesn't begin at the start of the muram area (as the hardware needs to be programmed with offsets into this area). The latter situation can happen with SMC UARTs on CPM2, as its parameter RAM is relocatable, u-boot puts it at zero, and the kernel doesn't support moving it. It is now described with a muram node, similar to QE. The current CPM binding is sufficiently recent (i.e. never appeared in an official release) that compatibility with existing device trees is not an issue. The code supporting the new binding is shared between cpm1 and cpm2, rather than remain separated. QE should be able to use this code as well, once minor fixes are made to its device trees. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * [POWERPC] Document local bus nodes in the device tree, and update cuboot-pq2.Scott Wood2007-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The localbus node is used to describe devices that are connected via a chip select or similar mechanism. The advantages over placing the devices under the root node are that it can be probed without probing other random things under the root, and that the description of which chip select a given device uses can be used to set up mappings if the firmware failed to do so in a useful manner. cuboot-pq2 is updated to match the binding; previously, it called itself chipselect rather than localbus, and used phandle linkage between the actual bus node and the control node (the current agreement is to simply use the fully-qualified address of the control registers, and ignore the overlap with the IMMR node). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * [POWERPC] Introduce new CPM device bindings.Scott Wood2007-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This introduces a new device binding for the CPM and other devices on these boards. Some of the changes include: 1. Proper namespace scoping for Freescale compatibles and properties. 2. Use compatible rather than things like device_type and model to determine which particular variant of a device is present. 3. Give the drivers the relevant CPM command word directly, rather than requiring it to have a lookup table based on device-id, SCC v. SMC, and CPM version. 4. Specify the CPCR and the usable DPRAM region in the CPM's reg property. Boards that do not require the legacy bindings should select CONFIG_PPC_CPM_NEW_BINDING to enable the of_platform CPM devices. Once all existing boards are converted and tested, the config option can become default y to prevent new boards from using the old model. Once arch/ppc is gone, the config option can be removed altogether. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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