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path: root/include/asm-powerpc/prom.h
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* [POWERPC] Use strcasecmp() rather than strncasecmp() when determining device ↵Scott Wood2007-08-22
| | | | | | | | | | | | | | node compatibility The current code assumes "foo-bar" must always be compatible with a node compatible with "foo", which breaks device trees where this is not so. The "case" part is also wrong according to Open Firmware, but it's more likely to have drivers and/or device trees depending on it, and thus needs to be handled more carefully. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove get_property and device_is_compatibleStephen Rothwell2007-08-16
| | | | | | | | | They were only needed for backwards compatibility and all in tree uses have now been changed. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] of_detach_node()'s device node argument cannot be constSegher Boessenkool2007-07-22
| | | | | | | ...since it modifies it (when it sets the OF_DETACHED flag). Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Consolidate of_find_node_by routinesStephen Rothwell2007-07-19
| | | | | | | | | | | This consolidates the routines of_find_node_by_path, of_find_node_by_name, of_find_node_by_type and of_find_compatible_device. Again, the comparison of strings are done differently by Sparc and PowerPC and also these add read_locks around the iterations. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net>
* Consolidate of_find_propertyStephen Rothwell2007-07-19
| | | | | | | | | | | | The only change here is that a readlock is taken while the property list is being traversed on Sparc where it was not taken previously. Also, Sparc uses strcasecmp to compare property names while PowerPC uses strcmp. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net>
* Consolidate of_device_is_compatibleStephen Rothwell2007-07-19
| | | | | | | | | The only difference here is that Sparc uses strncmp to match compatibility names while PowerPC uses strncasecmp. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net>
* Start split out of common open firmware codeStephen Rothwell2007-07-19
| | | | | | | | | This creates drivers/of/base.c (depending on CONFIG_OF) and puts the first trivially common bits from the prom.c files into it. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net>
* Split out common parts of prom.hStephen Rothwell2007-07-19
| | | | | | | | | | This creates linux/of.h and includes asm/prom.h from it. We also include linux/of.h from asm/prom.h while we transition. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net>
* [POWERPC] Add a warning to help trackdown device_node refcounting bugsMichael Ellerman2007-07-10
| | | | | | | | | | | | | | When the refcount for a device node goes to 0, we call the destructor - of_node_release(). This should only happen if we've already detached the node from the device tree. So add a flag OF_DETACHED which tracks detached-ness, and if we find ourselves in of_node_release() without it set, issue a warning and don't free the device_node. To avoid warning continuously reinitialise the kref to a sane value. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Generalise device_node flag interfaceMichael Ellerman2007-07-10
| | | | | | | | | The struct device_node currently has a _flags variable, although it's only used for one flag - OF_DYNAMIC. Generalise the flag accessors so we can use them with other flags in future. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add for_each_compatible_node()Michael Ellerman2007-06-25
| | | | | | Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Uninline of_iomap functionChristian Krafft2007-05-02
| | | | | | | | | There is no big reason to have that function inlined. Signed-off-by: Christian Krafft <krafft@de.ibm.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Move of_irq_to_resource from prom.h to prom_parse.cMathieu Desnoyers2007-05-02
| | | | | | | | | | In the powerpc architecture, of_irq_to_resource, currently sitting in prom.h, needs irq_of_parse_and_map and NO_IRQ from asm-powerpc/irq.h. The solution suggested by Benjamin Herrenschmidt is to move it to arch/powerpc/kernel/prom_parse.c. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove old interface find_devicesStephen Rothwell2007-04-24
| | | | | | | Replace uses with of_find_node_by_name and for_each_node_by_name. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove old interface find_type_devicesStephen Rothwell2007-04-24
| | | | | | | Replaced by of_find_node_by_type. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove old interface find_path_deviceStephen Rothwell2007-04-24
| | | | | | | Replaced by of_find_node_by_path. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove find_all_nodesStephen Rothwell2007-04-24
| | | | | | | This old interface has no more users. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove find_compatible_devicesStephen Rothwell2007-04-24
| | | | | | | This is an old interface and is replaced by of_find_compatible_node. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] add of_iomap functionChristian Krafft2007-04-23
| | | | | | | | | | The of_iomap function maps memory for a given device_node and returns a pointer to that memory. This is used at some places, so it makes sense to a seperate function. Signed-off-by: Christian Krafft <krafft@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
* [POWERPC] Make struct property's value a void *Stephen Rothwell2007-04-12
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Rename prom_n_size_cells to of_n_size_cellsStephen Rothwell2007-04-12
| | | | | | | This is more consistent and gets us closer to the Sparc code. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Rename prom_n_addr_cells to of_n_addr_cellsStephen Rothwell2007-04-12
| | | | | | | This is more consistent and gets us closer to the Sparc code. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Rename device_is_compatible to of_device_is_compatibleStephen Rothwell2007-04-12
| | | | | | | | | | This is more consistent and gets us closer to the Sparc code. We add a device_is_compatible define for compatibility during the change over. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Rename get_property to of_get_propertyStephen Rothwell2007-04-12
| | | | | | | | | This is more consistent and gets us closer to the Sparc code. We add a get_property define for compatibility during the change over. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Update documentation for flat device tree format v17David Gibson2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | This patch updates booting-without-of.txt to describe version 17 of the flattened device tree format. Version 17 is a small, backwards compatible change from version 16, adding an extra field giving the size of the device tree's structure block. At this time, the kernel has no use for the extra information, however its presence can make life easier for bootloaders or other software manipulating the tree. In addition this patch adds information on the size_dt_strings field of the device tree header, present since version 3 of the flattened tree format, but omitted from the documentation. It also makes changes to consistently refer to versions 16 and 17 as versions 16 and 17 in decimal, rather than version 0x10 which was occasionally used for version 16 previously. Finally, we also add the new field to the definition of the device tree header structure in prom.h Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix compile error in prom.hAndrew Morton2007-03-07
| | | | | | | | | | | | | | | | | | In file included from include/asm/pci.h:20, from include/linux/pci.h:751, from arch/powerpc/sysdev/dart_iommu.c:36: include/asm/prom.h: In function `of_irq_to_resource': include/asm/prom.h:341: warning: implicit declaration of function `irq_of_parse_and_map' include/asm/prom.h:345: error: `NO_IRQ' undeclared (first use in this function) include/asm/prom.h:345: error: (Each undeclared identifier is reported only once include/asm/prom.h:345: error: for each function it appears in.) Seems that prom.h has always wanted irq.h. Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] add of_get_mac_address and update fsl_soc.c to use itTimur Tabi2007-02-16
| | | | | | | | | | | | | | Add function of_get_mac_address(), which obtains the best MAC address to use from the device tree by checking various properties in order. The order is: 'mac-address', then 'local-mac-address', then 'address'. It skips properties that contain invalid MAC addresses, which were probably not initialized by U-Boot. Update gfar_of_init() and fs_enet_of_init() in fsl_soc.c to call of_get_mac_address(). Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'linux-2.6' into for-linusPaul Mackerras2006-12-03
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| * [POWERPC] Fix device_is_compatible() const warningBenjamin Herrenschmidt2006-10-24
| | | | | | | | | | | | | | | | | | Fix a const'ification related warning with device_is_compatible() and friends related to get_property() not properly having const on it's input device node argument. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] of_irq_to_resource now returns the virqAndy Fleming2006-11-12
| | | | | | | | | | | | | | | | | | Mostly this is to allow for error checking (check the return for NO_IRQ) Added a check that the resource is non-NULL, too. Signed-off-by: Andrew Fleming <afleming@freescale.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [PATCH] Slight refactor of interrupt mapping for FSL partsAndy Fleming2006-11-12
|/ | | | | | | | | | | * Cleaned up interrupt mapping a little by adding a helper function which parses the irq out of the device-tree, and puts it into a resource. * Changed the arch/ppc platform files to specify PHY_POLL, instead of -1 * Changed the fixed phy to use PHY_IGNORE_INTERRUPT * Added ethtool.h and mii.h to phy.h includes Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Define of_read_ulong helperPaul Mackerras2006-09-20
| | | | | | | | | | There are various places where we want to extract an unsigned long value from a device-tree property that can be 1 or 2 cells in length. This replaces some open-coded calculations, and one place where we assumed without checking that properties were the length we wanted, with a little of_read_ulong() helper. Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'merge'Paul Mackerras2006-08-31
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| * [POWERPC] Make OF irq map code detect more error casesBenjamin Herrenschmidt2006-08-30
| | | | | | | | | | | | | | | | | | | | | | | | Device-tree bugs on js20 with some versions of SLOF were causing the interrupt for IDE to not be parsed correctly and fail to boot. This patch adds a bit more sanity checking to the parser to detect some of those errors and fail instead of returning bogus information. The powerpc PCI code can then trigger a fallback that works on those machines. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Make doc comments extractableMichael Ellerman2006-08-08
| | | | | | | | | | | | | | | | | | We don't have much in the way of doc comments, but some of those we do have don't work because they start with "/***" or "/*", not "/**" which is what kernel-doc requires. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Make get_property() return a const void *Jeremy Kerr2006-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previous changes have treated the return values of get_property as const, so now we can make the actual change to get_property(). There shouldn't be a need to cast the return values anymore. We will now get compiler warnings when property values are assigned to a non-const variable. If properties need to be updated, there's still the of_find_property function. Built for cell_defconfig, chrp32_defconfig, g5_defconfig, iseries_defconfig, maple_defconfig, pmac32_defconfig, ppc64_defconfig and pseries_defconfig. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Constify & voidify get_property()Jeremy Kerr2006-07-31
| | | | | | | | | | | | | | | | | | | | | | Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powerpc core changes. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Use const qualifiers for prom parsing utilitesJeremy Kerr2006-07-07
|/ | | | | | | | | | | The of_bus callbacks map and get_flags can be constified, as they don't alter the range or addr arguments. of_dump_addr and of_read_addr can also be constified. Built for 32- and 64-bit powerpc Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add new interrupt mapping core and change platforms to use itBenjamin Herrenschmidt2006-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the new irq remapper core and removes the old one. Because there are some fundamental conflicts with the old code, like the value of NO_IRQ which I'm now setting to 0 (as per discussions with Linus), etc..., this commit also changes the relevant platform and driver code over to use the new remapper (so as not to cause difficulties later in bisecting). This patch removes the old pre-parsing of the open firmware interrupt tree along with all the bogus assumptions it made to try to renumber interrupts according to the platform. This is all to be handled by the new code now. For the pSeries XICS interrupt controller, a single remapper host is created for the whole machine regardless of how many interrupt presentation and source controllers are found, and it's set to match any device node that isn't a 8259. That works fine on pSeries and avoids having to deal with some of the complexities of split source controllers vs. presentation controllers in the pSeries device trees. The powerpc i8259 PIC driver now always requests the legacy interrupt range. It also has the feature of being able to match any device node (including NULL) if passed no device node as an input. That will help porting over platforms with broken device-trees like Pegasos who don't have a proper interrupt tree. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] New device-tree interrupt parsing codeBenjamin Herrenschmidt2006-07-03
| | | | | | | | | Adds new routines to prom_parse to walk the device-tree for interrupt information. This includes both direct mapping of interrupts and low level parsing functions for use with partial trees. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] change get_property to return void *Jeremy Kerr2006-07-02
| | | | | | | | | | | | Change the get_property() function to return a void *. This allows us to later remove the cast done in the majority of callers. Built for pseries, iseries, pmac32, cell, cbesim, g5, systemsim, maple, and mpc* defconfigs Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds2006-06-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (139 commits) [POWERPC] re-enable OProfile for iSeries, using timer interrupt [POWERPC] support ibm,extended-*-frequency properties [POWERPC] Extra sanity check in EEH code [POWERPC] Dont look for class-code in pci children [POWERPC] Fix mdelay badness on shared processor partitions [POWERPC] disable floating point exceptions for init [POWERPC] Unify ppc syscall tables [POWERPC] mpic: add support for serial mode interrupts [POWERPC] pseries: Print PCI slot location code on failure [POWERPC] spufs: one more fix for 64k pages [POWERPC] spufs: fail spu_create with invalid flags [POWERPC] spufs: clear class2 interrupt status before wakeup [POWERPC] spufs: fix Makefile for "make clean" [POWERPC] spufs: remove stop_code from struct spu [POWERPC] spufs: fix spu irq affinity setting [POWERPC] spufs: further abstract priv1 register access [POWERPC] spufs: split the Cell BE support into generic and platform dependant parts [POWERPC] spufs: dont try to access SPE channel 1 count [POWERPC] spufs: use kzalloc in create_spu [POWERPC] spufs: fix initial state of wbox file ... Manually resolved conflicts in: drivers/net/phy/Makefile include/asm-powerpc/spu.h
| * [POWERPC] cell: add RAS supportBenjamin Herrenschmidt2006-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a first version of support for the Cell BE "Reliability, Availability and Serviceability" features. It doesn't yet handle some of the RAS interrupts (the ones described in iic_is/iic_irr), I'm still working on a proper way to expose these. They are essentially a cascaded controller by themselves (sic !) though I may just handle them locally to the iic driver. I need also to sync with David Erb on the way he hooked in the performance monitor interrupt. So that's all for 2.6.17 and I'll do more work on that with my rework of the powerpc interrupt layer that I'm hacking on at the moment. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Add of_parse_dma_window()Jeremy Kerr2006-05-19
| | | | | | | | | | | | | | | | | | | | | | Add a function for generic parsing of dma-window properties (ie, ibm,dma-window and ibm,my-dma-window) of pci and virtual device nodes. This function will also be used by cell. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Don't include linux/config.h from anywhere else in include/David Woodhouse2006-04-26
|/ | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] powerpc: Kill _machine and hard-coded platform numbersBenjamin Herrenschmidt2006-03-28
| | | | | | | | | | | | | | | | This removes statically assigned platform numbers and reworks the powerpc platform probe code to use a better mechanism. With this, board support files can simply declare a new machine type with a macro, and implement a probe() function that uses the flattened device-tree to detect if they apply for a given machine. We now have a machine_is() macro that replaces the comparisons of _machine with the various PLATFORM_* constants. This commit also changes various drivers to use the new macro instead of looking at _machine. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: add for_each_node_by_foo helpersChristoph Hellwig2006-03-16
| | | | | | | | | Typical use for of_find_node_by_name and of_find_node_by_type is to iterate over all nodes of a given type/name. Add a helper macro to do that (in spirit of the list_for_each* macros). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Don't overwrite flat device tree with kdump kernelMichael Ellerman2006-02-07
| | | | | | | | | | | | | | It's possible for prom_init to allocate the flat device tree inside the kdump crash kernel region. If this happens, when we load the kdump kernel we overwrite the flattened device tree, which is bad. We could make prom_init try and avoid allocating inside the crash kernel region, but then we run into issues if the crash kernel region uses all the space inside the RMO. The easiest solution is to move the flat device tree once we're running in the kernel. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add of_find_property functionDave C Boutcher2006-01-13
| | | | | | | | | Add an of_find_property function that returns a struct property given a property name. Then change the get_property function to use that routine internally. Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add/remove/update properties in firmware device treeDave C Boutcher2006-01-13
| | | | | | | | | | | | | | | | | | Add support for updating and removing device tree properties. Since we hand out pointers to properties with gay abandon, we can't just free the property storage. Instead we move deleted, or the old copy of an updated property, to a "dead properties" list. Also note, its not feasable to kref device tree properties. we call get_property() all over the kernel in a wild variety of contexts. One consequence of this change is that we now take a read_lock(&devtree_lock) when doing get_property(). Signed-off-by: Dave Boutcher <sleddog@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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