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* [POWERPC] Removed config options that we don't support in embedded6xxKumar Gala2007-03-22
| | | | | | | | | | | When we started arch/powerpc we duplicated a number of config options from arch/ppc for various platforms that are supported. Now that we actually support a few platforms, remove all the ones that haven't been moved over. Additionally, this cleanup moved the 82xx/PQ2 options over into arch/powerpc/platforms/82xx/Kconfig where they belong. It also killed GEN550 which doesn't exist in arch/powerpc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Split cell platforms into their respective Kconfig fileKumar Gala2007-03-22
| | | | | | Cleaning up arch/powerpc/Kconfig platform support. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Split powermac platforms into their own Kconfig fileKumar Gala2007-03-22
| | | | | | Cleaning up arch/powerpc/Kconfig platform support. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Split 52xx platforms into their own Kconfig fileKumar Gala2007-03-22
| | | | | | Cleaning up arch/powerpc/Kconfig platform support. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Remove last_syscallAnton Blanchard2007-03-22
| | | | | | | Remove last_syscall from 32bit powerpc, its been gone in 64bit for years. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove _get_SPAnton Blanchard2007-03-22
| | | | | | | We already have an inline __get_SP, no need for yet another one. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: restructure multi-function supportLinas Vepstas2007-03-22
| | | | | | | | | Rework how multi-function PCI devices are identified and traversed. This fixes a bug with multi-function recovery on Power4 that was introduced by a recent Power4 EEH patch. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: verify state changeLinas Vepstas2007-03-22
| | | | | | | | After requesting a state change, verify that the state change actually ocurred, and the system ends up in the expected state. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: rm un-needed dataLinas Vepstas2007-03-22
| | | | | | | | | The EEH event notification system passes around data that is not needed or at least, not used properly. Stop passing this data; get it in a more reliable fashion. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: wait for slot statusLinas Vepstas2007-03-22
| | | | | | | | | | Modify routine that returns PCI slot status to wait for slot status to become available. This is needed, as slots that are in some remote card cage may go offline for extended periods of time. New users for this routine in following patches. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: handle reset state highLinas Vepstas2007-03-22
| | | | | | | | | Some firmware versions will return a slot reset state of "1" when a slot is EEH frozen. Recognize this as a state that can be handled. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: multifunction recovery bugfixLinas Vepstas2007-03-22
| | | | | | | | If the second or higher function of a multi-function device fails to recover, this failure is not reported upwards. Fix this. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: hotplug recovery bugfixLinas Vepstas2007-03-22
| | | | | | | | | | If a device driver does not have native PCI error recovery, a hotplug error recovery will be attemped. In this case, the device driver will not report back whether its healthy or not; simply assume that it is. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: support ibm,get-config-addr-info2 RTAS callLinas Vepstas2007-03-22
| | | | | | | | Provide support for the new ibm,get-config-addr-info2 RTAS token, whenever it is actually available. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: Tolerate high mmioLinas Vepstas2007-03-22
| | | | | | | | | Some drivers will attempt to perform a lot of mmio even after an EEH event was detected. This is especially the case for fast cpu's and PCI-E slots. Be a bit more lenient in allowing this. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: Add clarifying messages.Linas Vepstas2007-03-22
| | | | | | | | | There are multiple code patchs tht resuls in a "permanent failure"; when examining rare events, it can be hard to see which was taken. This patch adds printk's to assist. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: modify order of EEH state checkingLinas Vepstas2007-03-22
| | | | | | | | Change the order in which pci error state is examined; the "capabilites" is not valid if "reset state" is 5. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Minor paca optimisationStephen Rothwell2007-03-21
| | | | | | | | | | Move the slb_shadow_ptr field into the first cache line since it is (like everything there) read-only after boot. It is in fact statically initialised and thereafter only read. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] boot: export flush_cacheMilton Miller2007-03-21
| | | | | | | | Move the declaration of flush_cache to ops.h for use by platform code. Signed-off-by: Milton Miller <miltonm@bga.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] boot: rebuild when wrapper changesMilton Miller2007-03-21
| | | | | | | | | | Since there is magic defined per platform in the wrapper script, the zImage targets should depend on it. Signed-off-by: Milton Miller <miltonm@bga.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Make setprop accept a const buffer.Scott Wood2007-03-21
| | | | | | Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Document the linux,network-index property.Scott Wood2007-03-21
| | | | | | | | | | To allow more robust association of each network device node with an index (such as is used by the firmware or an EEPROM to indicate MAC addresses), a network device's node may specify the index explicitly. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Make compression of the kernel image optional.Scott Wood2007-03-21
| | | | | | | | | | | The --no-gzip option can be passed to the wrapper so that the kernel image is included uncompressed into the zImage. This is intended for bootloaders where the zImage itself can be compressed, or where boot time is considered more important than kernel image size. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add dt_ops methods.Scott Wood2007-03-21
| | | | | | | | | | | Add get_parent, create_node, and find_node_by_prop_value to dt_ops. Currently only implemented by flatdevtree_misc. Also, add a _str convenience wrapper for setprop. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Correct apparently misspelled "XMON" preprocessor symbol.Robert P. J. Day2007-03-16
| | | | | | | Correct the apparent misspelling of "XMON" to "CONFIG_XMON". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add documentation for the zImage's gunzip convenience functionsDavid Gibson2007-03-16
| | | | | | | | | This patch adds documenting comments to the gunzip convenience functions added in commit ad9d2716cfc1cda5a7e0d7bc0db45e3af8a4adbb. It also removes a stray newline, and an unused global variable. Signed-off-by: David Gibson <david@gibson.dropbear.id.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] 8xx parenthesis balanceMariusz Kozlowski2007-03-16
| | | | | | | This balances parenthesis in powerpc 8xx header files. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ibmebus: dynamic addition/removal of adapters, some code cleanupJoachim Fenkes2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds two sysfs attributes to /sys/bus/ibmebus which can be used to notify the ebus driver of added / removed ebus devices in the OF device tree. Echoing the device's location code (as found in the OFDT "ibm,loc-code" property) into the "probe" attribute will notify ebus of addition of the device and cause the appropriate device driver's probe function to be called on the device. Likewise, echoing the location code into the "remove" attribute will cause the device to be removed from the system. The writes will block until the respective operation has finished and return an error code if the operation failed. In addition, two minor tidbits are fixed: - The fake root device used to provide a common parent for all ebus devices is now based on device instead of of_device - it had no associated devtree node. This saves several checks throughout the ebus driver. - The sysfs attributes are now generated automagically by device_register() instead of by the ibmebus code, which saves a few compiler warnings about unused return codes. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ibmebus: whitespace fixesJoachim Fenkes2007-03-16
| | | | | | | This fixes a lot of whitespace in ibmebus.[ch] Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 32-bit early_init() should zero from __bss_start to __bss_stop onlyMark A. Greer2007-03-16
| | | | | | | | | Currently, early_init() in setup_32.c zeroes from '_bss_start' to '_end'. It should only zero from '__bss_start' to '__bss_stop'. This patch does that. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Make ft_create_node() pay attention to the parent ↵Scott Wood2007-03-16
| | | | | | | | parameter. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add ft_find_node_by_prop_value().Scott Wood2007-03-16
| | | | | | | | | ft_find_node_by_prop_value() finds nodes with the specified property/value pair. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Make ft_get_parent() return a phandle, and NULL if ↵Scott Wood2007-03-16
| | | | | | | | | | | | | | | | | already top-level. Most of ft_get_parent() is factored out into __ft_get_parent(), which deals only in internal node pointers. The ft_get_parent() wrapper handles phandle conversion in both directions (previously, ft_get_parent() did not convert its return value). It also now returns NULL as the parent of the toplevel node, rather than just returning the toplevel node again (which made it rather useless in loops). Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Refactor ft_get_prop() into internal and external ↵Scott Wood2007-03-16
| | | | | | | | | | | | | functions. The property searching part of ft_get_prop is factored out into an internal __ft_get_prop() which does not deal with phandles and does not copy the property data. ft_get_prop() is then a wrapper that does the phandle translation and copying. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add ft_find_device_rel().Scott Wood2007-03-16
| | | | | | | | Add a function to look up a relative, rather than absolute, path name. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Use map_string() instead of lookup_string() in ft_prop().Scott Wood2007-03-13
| | | | | | | | | | When adding a property, the property name should be added to the string table if it doesn't already exist. map_string() does that; lookup_string() will fail instead. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Modify *pp, not *p, in ft_shuffle().Scott Wood2007-03-13
| | | | | | | | Move the caller's pointer back to match the change in the region's start, rather than alter a byte of the device tree's content. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Preserve the pp pointer in ft_make_space() when ↵Scott Wood2007-03-13
| | | | | | | | | | | calling ft_reorder(). The ft_reorder() function may change the start of the region of interest, so the pointer provided by the caller into that region must be fixed up to still point to the same datum. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Make ft_get_phandle() accept and return NULL.Scott Wood2007-03-13
| | | | | | | | | | Currently, if ft_get_phandle() is passed NULL it will allocate an entry for it and return a non-NULL phandle. This patch makes it simply pass the NULL through. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Rename ft_node_add() to ft_get_phandle().Scott Wood2007-03-13
| | | | | | | | | | | This name better reflects what the function does, which is to look up the phandle for an internal node pointer, and add it to the internal pointer to phandle table if not found. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add ft_root_node().Scott Wood2007-03-13
| | | | | | | | | | | | Clean up some of the open-coded data structure references by providing a function to return a pointer to the tree's root node. This is only used in high-level functions trying to access the root of the tree, not in low-level code that is actually manipulating the data structure. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] bootwrapper: Add stddef.h to ops.hScott Wood2007-03-13
| | | | | | | | | | ops.h references NULL, so include stddef.h, so files including ops.h don't have to. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Mark A. Greer <mgreer@mvista.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] zImage: Cleanup and improve zImage entry pointDavid Gibson2007-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch re-organises the way the zImage wrapper code is entered, to allow more flexibility on platforms with unusual entry conditions. After this patch, a platform .o file has two options: 1) It can define a _zimage_start, in which case the platform code gets control from the very beginning of execution. In this case the platform code is responsible for relocating the zImage if necessary, clearing the BSS, performing any platform specific initialization, and finally calling start() to load and enter the kernel. 2) It can define platform_init(). In this case the generic crt0.S handles initial entry, and calls platform_init() before calling start(). The signature of platform_init() is changed, however, to take up to 5 parameters (in r3..r7) as they come from the platform's initial loader, instead of a fixed set of parameters based on OF's usage. When using the generic crt0.S, the platform .o can optionally supply a custom stack to use, using the BSS_STACK() macro. If this is not supplied, the crt0.S will assume that the loader has supplied a usable stack. In either case, the platform code communicates information to the generic code (specifically, a PROM pointer for OF systems, and/or an initrd image address supplied by the bootloader) via a global structure "loader_info". In addition the wrapper script is rearranged to ensure that the platform .o is always linked first. This means that platforms where the zImage entry point is at a fixed address or offset, rather than being encoded in the binary header can be supported using option (1). Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] zImage: Cleanup and improve prep_kernel()David Gibson2007-03-12
| | | | | | | | | | | | | | | | | | | | | | | This patch rewrites prep_kernel() in the zImage wrapper code to be clearer and more flexible. Notable changes: - Handling of the initrd image from prep_kernel() has moved into a new prep_initrd() function. - The address of the initrd image is now added as device tree properties, as the kernel expects. - We only copy a packaged initrd image to a new location if it is in danger of being clobbered when the kernel moves to its final location, instead of always. - By default we decompress the kernel directly to address 0, instead of requiring it to relocate itself. Platforms (such as OF) where doing this could clobber still-live firmware data structures can override the vmlinux_alloc hook to provide an alternate place to decompress the kernel. - We no longer pass lots of information between functions in global variables. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] zImage: Add more flexible gunzip convenience functionsDavid Gibson2007-03-12
| | | | | | | | | | | | | | | | | | | | | | | At present, arch/powerpc/boot/main.c includes a gunzip() function which is a convenient wrapper around zlib. However, it doesn't conveniently allow decompressing part of an image to one location, then the remainder to a different address. This patch adds a new set of more flexible convenience wrappers around zlib, moving them to their own file, gunzip_util.c, in the process. These wrappers allow decompressing sections of the compressed image to different locations. In addition, they transparently handle uncompressed data, avoiding special case code to handle uncompressed vmlinux images. The patch also converts main.c to use the new wrappers, using the new flexibility to avoid decompressing the vmlinux's ELF header twice as we did previously. That in turn means we avoid extending our allocations for the vmlinux to allow space for the extra copy of the ELF header. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 750CL cputable entryJake Moilanen2007-03-08
| | | | | | | 750CL cputable entry from Steve Winiecki. Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove fixed setting of ROOT_DEV for 7448HPC2 platformsZang Roy-r619112007-03-08
| | | | | | Remove fixed setting of ROOT_DEV for 7448HPC2 platforms. Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Make find_and_init_pbs() a void functionStephen Rothwell2007-03-08
| | | | | | | It always returned 0 and noone checked. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Allow xmon to build without CONFIG_DEBUG_BUGVERBOSEStephen Rothwell2007-03-08
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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