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* [POWERPC] mpc5200: Add common mpc52xx_setup_pci() routineMarian Balakowicz2008-01-182-11/+15
| | | | | | | | | This patch moves a generic pci init code from lite5200 platform file to a common mpc52xx_setup_pci() routine and adds additional compatibility property verification. Signed-off-by: Marian Balakowicz <m8@semihalf.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* [POWERPC] mpc5200: Add 'fsl,lpb' bus type for localplus busMarian Balakowicz2008-01-181-1/+11
| | | | | | | | | Define MPC52xx specific device id list, add new 'fsl,lpb' compatible id for LocalPlus Bus. Signed-off-by: Marian Balakowicz <m8@semihalf.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* Merge branch 'for-2.6.25' of ↵Paul Mackerras2008-01-175-119/+4
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/olof/pasemi into for-2.6.25
| * [POWERPC] pasemi: Move electra-ide to pata_of_platformOlof Johansson2008-01-153-106/+0
| | | | | | | | | | | | | | Move electra-ide glue over to the new pata_of_platform framework, and add the quirks needed to that driver. Signed-off-by: Olof Johansson <olof@lixom.net>
| * [POWERPC] pasemi: Use machine_*_initcall() hooks in platform codeGrant Likely2008-01-022-12/+3
| | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Olof Johansson <olof@lixom.net>
| * [POWERPC] pasemi: Fix NMI handling checkOlof Johansson2008-01-021-1/+1
| | | | | | | | | | | | | | | | The logic that checks to see if a machine check is caused by an NMI will always match when NMI hasn't been initialized, since the mpic routine will return NO_IRQ (and that's what the nmi_virq value is as well). Signed-off-by: Olof Johansson <olof@lixom.net>
* | [POWERPC] Use <linux/of_{platform, device}.h> and not <asm/...> variants.Jon Loeliger2008-01-172-2/+3
| | | | | | | | | | Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] cell: Use machine_*_initcall() hooks in platform codeGrant Likely2008-01-176-26/+8
| | | | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] powermac: Use machine_*_initcall() hooks in platform codeGrant Likely2008-01-174-19/+6
| | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] eeh.c: Use for_each_child_of_nodeStephen Rothwell2008-01-171-22/+21
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] iSeries: eliminate pci_dn bussubnoStephen Rothwell2008-01-171-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | xlate_iomm_address() really wants the ds_addr to pass to the HV, so store that value (instead of the BAR number) when we allocate the device bars. This is not a fast path, so we can look up the device_node property there instead of using the bussubno field of the pci_dn. The other user of iseries_ds_addr() was already scanning the device tree, so looking up a property will not slow it down any more. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] The pci_dn pcidev is only used by EEHStephen Rothwell2008-01-171-1/+0
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Use for_each macros in arch/powerpc/platforms/powermacCyrill Gorcunov2008-01-171-2/+1
| | | | | | | | | | Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Add of_find_matching_node() helper functionGrant Likely2008-01-172-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Similar to of_find_compatible_node(), of_find_matching_node() and for_each_matching_node() allow you to iterate over the device tree looking for specific nodes, except that they take of_device_id tables instead of strings. This also moves of_match_node() from driver/of/device.c to driver/of/base.c to colocate it with the of_find_matching_node which depends on it. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Merge branch 'virtex-for-2.6.25' of ↵Josh Boyer2008-01-111-1/+11
|\ \ | | | | | | | | | git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.25
| * | [POWERPC] Xilinx: Add correct compatible list for device tree bus bindings.Stephen Neuendorffer2008-01-091-1/+11
| |/ | | | | | | | | | | | | | | | | Includes both flavors of plb, opb, dcr, and a pseudo 'compound' bus for representing compound peripherals containing more than one logical device. Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* / [POWERPC] 4xx: typo in calling machine_device_initcall() for Sequoia boardGrant Likely2008-01-021-1/+1
|/ | | | | | | Fix an obvious typo. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* Merge branch 'for-2.6.25' of ↵Paul Mackerras2007-12-311-3/+27
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/olof/pasemi
| * [POWERPC] pasemi: Distribute interrupts evenly across cpusOlof Johansson2007-12-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By default the OpenPIC on PWRficient will bias to one core (since that will improve changes of the other core being able to stay idle/powered down). However, this conflicts with most irq load balancing schemes, since setting an interrupt to be delivered to either core doesn't really result in the load being shared. It also doesn't work well with the soft irq disable feature of PPC, since EE will stay on until the first interrupt is taken while soft disabled. Set the gconf0 config bit that enables even distribution of interrupts among the two cores. Signed-off-by: Olof Johansson <olof@lixom.net>
| * [POWERPC] pasemi: Implement NMI supportOlof Johansson2007-12-281-3/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some PWRficient-based boards have a NMI button that's wired up to a GPIO as interrupt source. By configuring the openpic accordingly, these get delivered as a machine check with high priority, instead of as an external interrupt. The device tree contains a property "nmi-source" in the openpic node for these systems, and it's the (hwirq) source for the input. Also, for these interrupts, the IACK is read from another register than the regular (MCACK instead), but they are EOI'd as usual. So implement said function for the mpic driver. Finally, move a couple of external function defines to include/ instead of local under sysdev. Being able to mask/unmask and eoi directly saves us from setting up a dummy irq handler that will never be called. Signed-off-by: Olof Johansson <olof@lixom.net>
* | [POWERPC] 4xx: Use machine_device_initcall for bus probeJosh Boyer2007-12-2411-44/+11
| | | | | | | | | | | | | | | | Some machine_xx_initcall macros were recently added that check for the machine type before calling the function. This converts the 4xx platforms to use those for bus probing. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] Remove unneeded variable declarations from mpc837x_mdsJosh Boyer2007-12-241-5/+0
| | | | | | | | | | | | | | Remove the declarations for isa_io_base and isa_mem_base as they are declared in pci-common.c now. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Mark of_bus structures as __initdataJosh Boyer2007-12-2410-11/+10
| | | | | | | | | | | | | | Mark the of_device_id structures used to probe the various busses on 4xx as __initdata. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Update Kilauea, Rainier, and Walnut defconfigsJosh Boyer2007-12-231-0/+1
| | | | | | | | | | | | | | Enable PCI support for these eval boards among other things. Also selects PCI for Rainier in the Kconfig file. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Add AMCC Makalu board support to platforms/40xStefan Roese2007-12-233-0/+72
| | | | | | | | | | | | | | This patch adds basic support for the AMCC Makalu board to arch/powerpc. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Add Kilauea PCIe support to dts and KconfigStefan Roese2007-12-231-0/+1
| | | | | | | | | | Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Add 405EX CPU type needed for EMAC support on KilaueaStefan Roese2007-12-231-0/+6
| | | | | | | | | | | | | | | | For EMAC support, 405EX needs to be defined to enable the corresponding EMAC features (IBM_NEW_EMAC_EMAC4, etc.). Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: libfdt and pci fixes for RainierJosh Boyer2007-12-231-0/+3
| | | | | | | | | | | | | | Update the Rainier wrapper for the libfdt merge and add the pci flags to the platform file. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Include missing headerJosh Boyer2007-12-231-0/+1
| | | | | | | | | | | | | | A small error caused a header file to be removed making sequoia support no longer compile. Fix it. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: 440GRx Rainier board support.Valentine Barshak2007-12-233-0/+76
| | | | | | | | | | | | | | PowerPC 440GRx Rainier board support. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] pci32: 4xx embedded platforms want to reassign all PCI resourcesBenjamin Herrenschmidt2007-12-238-1/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes 4xx embedded platforms re-assign all PCI resources as we pretty much never care about what the various firmwares have done on these, it's generally not compatible with the way the kernel will map the bridges. We still need to also enable bus renumbering on some of them, but I will do that from a separate patch after I've fixed 4xx PCIe to handle all bus numbers. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Base support for 440SPe "Katmai" eval boardBenjamin Herrenschmidt2007-12-233-1/+79
| | | | | | | | | | | | | | | | | | This adds base support for the Katmai board, including PCI-X and PCI-Express (but no RTC, nvram, etc... yet). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Wire up PCI on Bamboo boardBenjamin Herrenschmidt2007-12-231-0/+1
| | | | | | | | | | | | | | | | This adds the device-tree bits & call to ppc4xx_pci_find_bridges() to make PCI work on the Bamboo board Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Base support for 440GX Taishan eval boardHugh Blemings2007-12-233-0/+89
| | | | | | | | | | | | | | | | | | This patch adds base support for the AMCC Taishan 440GX evaluation board. Signed-off-by: Hugh Blemings <hugh@blemings.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Add PCI to Walnut platformBenjamin Herrenschmidt2007-12-231-0/+1
| | | | | | | | | | | | | | | | This wires up the 4xx PCI support & device-tree bits for the 405GP based Walnut platform. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: EP405 boards support for arch/powerpcBenjamin Herrenschmidt2007-12-233-14/+133
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Brings EP405 support to arch/powerpc. The IRQ routing for the CPLD comes from a device-tree property, PCI is working to the point where I can see the video card, USB device, and south bridge. This should work with both EP405 and EP405PC. I've not totally figured out how IRQs are wired on this hardware though, thus at this stage, expect only USB interrupts working, pretty much the same as what arch/ppc did. Also, the flash, nvram, rtc and temp control still have to be wired. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: Add early udbg support for 40x processorsBenjamin Herrenschmidt2007-12-231-0/+1
| | | | | | | | | | | | | | | | This adds some basic real mode based early udbg support for 40x in order to debug things more easily Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] 4xx: PCI support for Ebony boardBenjamin Herrenschmidt2007-12-231-0/+1
| | | | | | | | | | | | | | | | This wires up the 4xx PCI support & device tree bits for 440GP based Ebony platform. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* | [POWERPC] Reworking machine check handling and Fix 440/440ABenjamin Herrenschmidt2007-12-231-5/+0
|/ | | | | | | | | | | | | | | This adds a cputable function pointer for the CPU-side machine check handling. The semantic is still the same as the old one, the one in ppc_md. overrides the one in cputable, though ultimately we'll want to change that so the CPU gets first. This removes CONFIG_440A which was a problem for multiplatform kernels and instead fixes up the IVOR at runtime from a setup_cpu function. The "A" version of the machine check also tweaks the regs->trap value to differenciate the 2 versions at the C level. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* Merge branch 'linux-2.6'Paul Mackerras2007-12-212-3/+16
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| * [POWERPC] Make PS3_SYS_MANAGER default y, not mMichael Ellerman2007-12-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently it's impossible to build a ps3_defconfig which will reboot without modules installed. This makes it all too easy to find yourself with a PS3 that won't reboot. This is because the system manager driver, which provides the reboot mechanism, is only selectable if PS3_ADVANCED is set, else it defaults to m. In ps3_defconfig PS3_ADVANCED is not set, therefore the system manager is built as a module. It would be desirable IMHO for the defconfig to produce a kernel that boots and reboots, without needing modules to be installed. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [POWERPC] iSeries: don't printk with HV spinlock heldStephen Rothwell2007-12-141-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | Printk was observed to hang during module unload due to a limited window of characters that may be sent to the hypervisor. The window only reexpands when we receive an ack from the HV and the spinlock here prevents us from ever processing that ack. This fixes it by dropping the lock before doing the printk, then looping back to the top to reacquire the lock. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Make non-PCI build work againStephen Rothwell2007-12-212-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Maple and pasemi both require PCI as does CONFIG_OF_PLATFORM_PCI. The default setting of CONFIG_ISA_DMA_API is set to match the protection around the relevant routines in asm/dma.h. I also had to remove the PMAC platform from the combined build. The precis is that to build a 64 bit kernel with no PCI, you can only include pSeries and iSeries. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] spufs: Don't leak kernel stack through an empty {i,m}box_info readJeremy Kerr2007-12-211-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | Based on an original patch from Arnd Bergmann <arnd.bergmann@de.ibm.com> If there's no entry in the mailbox, then a read on the _info file will return data from an uninitialised variable. This change returns EOF if there's no mailbox info available instead. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] spufs: DMA Restart after SIGSEGVAndre Detsch2007-12-212-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the behavior of spufs when a spu tries a DMA operation based on a wrong / unavailable address. Instead of just generating a SIGBUS signal, spufs now generates a SIGSEGV signal and restarts the problematic DMA operation after the execution of the application's signal handler. This allows applications to employ user-level paging systems. Although the restart_dma function is called before the application's signal handler, the operation is not actually performed at this time, since the spu context is already stopped. The operation only takes place when spu_run is restarted (which happens automatically). Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] spufs: Use separate timer for /proc/spu_loadavg calculationAegis Lin2007-12-211-17/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The original spusched_timer was designed to take effect only when a context is waiting in the runqueue. This change adds an additional lower-freq timer has been added to purely handle the spu_load updates. The new timer will be triggered per LOAD_FREQ ticks. Signed-off-by: Aegis Lin <aegislin@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] spufs: make state_mutex interruptibleChristoph Hellwig2007-12-217-65/+219
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Make most places that use spu_acquire/spu_acquire_saved interruptible, this allows getting out of the spufs code when e.g. pressing ctrl+c. There are a few places where we get called e.g. from spufs teardown routines were we can't simply err out so these are left with a comment. For now I've also not touched the poll routines because it's open what libspe would expect in terms of interrupted system calls. Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] spufs: add enchanced simple attr macrosChristoph Hellwig2007-12-211-24/+154
| | | | | | | | | | | | | | | | | | | | | | The simple attr macros currently used by spufs can't deal with the handlers returning errors, which is required to make the state_mutex interruptible. This adds a local copy that allows for an error return from the get/set handlers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] spufs: decouple spu scheduler from spufs_spu_run (asynchronous ↵Luke Browning2007-12-215-168/+200
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | scheduling) Change spufs_spu_run so that the context is queued directly to the scheduler and the controlling thread advances directly to spufs_wait() for spe errors and exceptions. nosched contexts are treated the same as before. Fixes from Christoph Hellwig <hch@lst.de> Signed-off-by: Luke Browning <lukebr@linux.vnet.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] spufs: don't set reserved bits in spu interrupt statusMasato Noguchi2007-12-211-10/+10
| | | | | | | | | | | | | | | | | | | | This changes the spu context switch code to not write to reserved bits of spu interrupt status register. The architecture book says the reserved fields should be set to zero. Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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