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2009-04-16powerpc/of-device-tree: Factor MTD physmap bindings out of booting-without-ofStefan Roese
It's easier to find bindings descriptions in separate files. So factor out the MTD physmap bindings into a separate file to not clutter booting-without-of.txt more. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-11-10powerpc: Repair device bindings documentationTrent Piepho
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>
2008-10-20of/spi: Support specifying chip select as active high via device treeWolfgang Ocker
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>
2008-08-04powerpc: Move include files to arch/powerpc/include/asmStephen Rothwell
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>
2008-07-26Documentation cleanup: trivial misspelling, punctuation, and grammar ↵Matt LaPlante
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>
2008-07-25Merge commit 'gcl/gcl-next'Benjamin Herrenschmidt
2008-07-22of-bindings: Add binding documentation for SPI busses and devicesGrant Likely
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>
2008-07-22Merge commit 'origin/master'Benjamin Herrenschmidt
Manually fixed up: drivers/net/fs_enet/fs_enet-main.c
2008-07-18Merge branch 'master' of ↵David S. Miller
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
2008-07-16powerpc: Update example SOC node in booting-without-of.txt.Scott Wood
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>
2008-07-16powerpc: Document Freescale power management nodes, and the sleep property.Scott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-14powerpc/fsl: Refactor device bindingsKumar Gala
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>
2008-07-14powerpc/CPM: Add i2c pins to dts and board setupJochen Friedrich
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>
2008-06-10powerpc/QE: implement support for the GPIO LIB APIAnton Vorontsov
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>
2008-06-10powerpc/sysdev: implement FSL GTM supportAnton Vorontsov
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>
2008-06-02[POWERPC] Cleanup mpic nodes in .dtsKumar Gala
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>
2008-06-02[POWERPC] Update booting-without-of for Freescale PCIe MSIJason Jin
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>
2008-05-30net: OpenFirmware GPIO based MDIO bitbang driverLaurent Pinchart
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>
2008-04-28fbdev: powerpc: driver for Freescale 8610 and 5121 DIUYork Sun
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>
2008-04-24[POWERPC] Xilinx: of_serial support for Xilinx uart 16550.John Linn
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>
2008-04-17[POWERPC] QE: UCC nodes cleanupAnton Vorontsov
- 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>
2008-04-17[POWERPC] Implement support for the GPIO LIB APIAnton Vorontsov
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>
2008-04-15[POWERPC] Document the mv64x60 device tree bindingsDale Farnsworth
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>
2008-03-26[POWERPC] Start removing linux,network-index in favour of aliasesDavid Gibson
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>
2008-02-06Merge branch 'virtex-for-2.6.25' of ↵Josh Boyer
git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.25
2008-02-06[POWERPC] 4xx: Add USB ehci-ppc-of dts bindings.Valentine Barshak
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>
2008-02-06[POWERPC] Xilinx: hwicap: update booting-without-of.txtStephen Neuendorffer
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>
2008-01-28[POWERPC] fsl_spi: stop using device_type = "spi"Anton Vorontsov
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>
2008-01-28[POWERPC] QE: get rid of most device_types and modelAnton Vorontsov
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>
2008-01-28[POWERPC] Add docs for Freescale PowerQUICC SATA device tree nodesLi Yang
Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-28[POWERPC] Add docs for Freescale DMA & DMA channel device tree nodesZhang Wei
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>
2008-01-23[POWERPC] Update MPC8610 HPCD to support audio driversTimur Tabi
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>
2008-01-23[POWERPC] QE: Add support for Freescale QUICCEngine UARTTimur Tabi
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>
2008-01-23[POWERPC] QE: Add ability to upload QE firmwareTimur Tabi
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>
2008-01-23[POWERPC] fsl_soc: add support to gianfar for fixed-link propertyVitaly Bordug
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>
2008-01-23[POWERPC] 83xx: USB device tree cleanupsLi Yang
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>
2008-01-17[POWERPC] #address-cells & #size-cells properties are not inheritedMark A. Greer
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>
2008-01-17[POWERPC] booting-without-of: localbus should not include board nameAnton Vorontsov
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>
2008-01-09[POWERPC] Xilinx: Update booting-without-of.Stephen Neuendorffer
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>
2007-12-13[POWERPC] qe: add function qe_clock_source()Timur Tabi
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>
2007-12-12[POWERPC] FSL: enet device tree cleanupsKumar Gala
* 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>
2007-12-06[POWERPC] Improved documentation of device tree 'ranges'Stephen Neuendorffer
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>
2007-11-19[POWERPC] Document rgmii-rxid and rgmii-txid phy-connection-typesKim Phillips
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>
2007-11-08Merge branch 'for-2.6.24' of ↵Paul Mackerras
master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
2007-11-08[POWERPC] Fix cache line vs. block size confusionBenjamin Herrenschmidt
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>
2007-11-01[POWERPC] Device tree bindings for Xilinx devicesGrant Likely
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>
2007-10-11Merge branch 'master' of ↵Linus Torvalds
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.
2007-10-10Device tree aware EMAC driverDavid Gibson
Based on BenH's earlier work, this is a new version of the EMAC driver for the built-in ethernet found on PowerPC 4xx embedded CPUs. The same ASIC is also found in the Axon bridge chip. This new version is designed to work in the arch/powerpc tree, using the device tree to probe the device, rather than the old and ugly arch/ppc OCP layer. This driver is designed to sit alongside the old driver (that lies in drivers/net/ibm_emac and this one in drivers/net/ibm_newemac). The old driver is left in place to support arch/ppc until arch/ppc itself reaches its final demise (not too long now, with luck). This driver still has a number of things that could do with cleaning up, but I think they can be fixed up after merging. Specifically: - Should be adjusted to properly use the dma mapping API. Axon needs this. - Probe logic needs reworking, in conjuction with the general probing code for of_platform devices. The dependencies here between EMAC, MAL, ZMII etc. make this complicated. At present, it usually works, because we initialize and register the sub-drivers before the EMAC driver itself, and (being in driver code) runs after the devices themselves have been instantiated from the device tree. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-08[POWERPC] spi: mode should be "cpu-qe" instead of "qe"Peter Korsgaard
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>
2007-10-04[POWERPC] cpm: Describe multi-user ram in its own device node.Scott Wood
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>