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2008-10-02powerpc/4xx: Allow 4xx PCI bridge to be disabled via device treeMatthias Fuchs1-1/+8
This patch allows the 4xx (conventional) PCI bridge to be disabled via the device tree. This is needed for 4xx PCI adapter hardware. Use the PCI node's status property to disable the PCI bridge. Signed-off-by: Matthias Fuchs <[email protected]> Acked-by: Stefan Roese <[email protected]> Signed-off-by: Josh Boyer <[email protected]>
2008-09-29powerpc/fsl_soc: remove mpc83xx_wdt codeAnton Vorontsov1-47/+0
mpc83xx_wdt is the OF driver now, so we don't need fsl_soc constructor. Signed-off-by: Anton Vorontsov <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-09-23powerpc: Move 8xxx GPIO Kconfig under the platform menuKumar Gala1-9/+0
The initial patch had the option at the top level which wasn't quite right. Moving under the platform options is a bit better. Signed-off-by: Kumar Gala <[email protected]>
2008-09-23powerpc: gpio driver for mpc8349/8572/8610 and compatiblePeter Korsgaard3-0/+181
Structured similar to the existing QE GPIO support. Signed-off-by: Peter Korsgaard <[email protected]> Acked-by: Anton Vorontsov <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-09-21Merge branch 'powerpc-next' of ↵Paul Mackerras1-22/+52
master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc
2008-09-21Merge branch 'next' of ↵Paul Mackerras1-12/+11
ssh://master.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx
2008-09-16powerpc/cpm1: Fix race condition in CPM1 GPIO library.Jochen Friedrich1-22/+52
The CPM1 GPIO library code uses the non thread-safe clrbits32/setbits32 macros. This patch protects them with a spinlock. Based on the CPM2 patch from Laurent Pinchart <[email protected]>, commit 639d64456e20cbfc866b18dc03cf9f9babc9c7cd. Signed-off-by: Jochen Friedrich <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-09-14generic: redefine resource_size_t as phys_addr_tJeremy Fitzhardinge1-10/+6
There's no good reason why a resource_size_t shouldn't just be a physical address, so simply redefine it in terms of phys_addr_t. Signed-off-by: Jeremy Fitzhardinge <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2008-09-10Merge branch 'linux-2.6'Paul Mackerras4-15/+35
2008-09-05mv643xx_eth: remove force_phy_addr fieldLennert Buytenhek1-4/+2
Currently, there are two different fields in the mv643xx_eth_platform_data struct that together describe the PHY address -- one field (phy_addr) has the address of the PHY, but if that address is zero, a second field (force_phy_addr) needs to be set to distinguish the actual address zero from a zero due to not having filled in the PHY address explicitly (which should mean 'use the default PHY address'). If we are a bit smarter about the encoding of the phy_addr field, we can avoid the need for a second field -- this patch does that. Signed-off-by: Lennert Buytenhek <[email protected]>
2008-09-02powerpc/4xx: Necessary fixes to PCI for 4GB RAM sizeIlya Yanok1-7/+6
The declaration of total_memory removed. Now including <mm/mmu_decl.h> instead. Since total_memory is a phys_addr_t which is 64-bit on 44x and is_power_of_2() works with u32 so I just inlined (size & (size-1)) != 0 instead. Also this patch fixes default initialization: res->end should be 0x7fffffff not 0x80000000. Signed-off-by: Ilya Yanok <[email protected]> Acked-by: Stefan Roese <[email protected]> Signed-off-by: Josh Boyer <[email protected]>
2008-08-28powerpc/44x: AMCC PPC460GT/EX PCI-E de-emphasis adjustment fixTirumala R Marri1-5/+5
During recent tests with PCI-E , it has been found the DRV + De-Emphasis values are not optimum. These new values are tested thouroughly. Signed-off-by: Tirumala R Marri <[email protected]> Signed-off-by: Feng Kan [email protected] Acked-by: Stefan Roese <[email protected]> Signed-off-by: Josh Boyer <[email protected]>
2008-08-26Merge branch 'merge' of ↵Linus Torvalds3-14/+35
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc: Update defconfigs for most non-embedded platforms powerpc: Export CMO_PageSize powerpc/ps3: Fix ioremap of spu shadow regs powerpc/ps3: Rework htab code to remove ioremap powerpc/ps3: Update ps3_defconfig powerpc/cell/oprofile: Avoid double vfree of profile buffer powerpc: Update defconfigs for FSL PPC boards powerpc: Add cuImage.mpc866ads to the bootwrapper as a cuboot-8xx target cpm2: Fix race condition in CPM2 GPIO library. powerpc: fix memory leaks in QE library powerpc/85xx: TQM8548: DTS file fixes and cleanup powerpc: Fix whitespace merge in mpc8641 hpcn device tree
2008-08-23removed unused #include <linux/version.h>'sAdrian Bunk1-1/+0
This patch lets the files using linux/version.h match the files that #include it. Signed-off-by: Adrian Bunk <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2008-08-21cpm2: Fix race condition in CPM2 GPIO library.Laurent Pinchart1-11/+26
The CPM2 GPIO library code uses the non thread-safe clrbits32/setbits32 macros. This patch protects them with a spinlock. Signed-off-by: Laurent Pinchart <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-08-20powerpc: fix memory leaks in QE libraryTimur Tabi2-3/+9
Fix two memory leaks in the Freescale QE library: add a missing kfree() in ucc_fast_init() and ucc_slow_init() if the ioremap() fails, and update ucc_fast_free() and ucc_slow_free() to call iounmap() if necessary. Based on a patch from Tony Breeds <[email protected]>. Signed-off-by: Timur Tabi <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-08-20powerpc: Convert the MPIC MSI code to use msi_bitmapMichael Ellerman4-129/+42
This affects the U3 MSI code as well as the PASEMI MSI code. We keep some of the MPIC routines as helpers, and also the U3 best-guess reservation logic. The rest is replaced by the generic code. And a few printk format changes due to hwirq type change. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Paul Mackerras <[email protected]>
2008-08-20powerpc: Convert the FSL MSI code to use msi_bitmapMichael Ellerman2-91/+17
This is 90% straight forward, although we have to change a few printk format strings as well because of the change in type of hwirq. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Paul Mackerras <[email protected]>
2008-08-20powerpc: Split-out common MSI bitmap logic into msi_bitmap.cMichael Ellerman3-0/+254
There are now two almost identical implementations of an MSI bitmap allocator, one in mpic_msi.c and the other in fsl_msi.c. Merge them together and put the result in msi_bitmap.c. Some of the MPIC bits will remain to provide a nicer interface for the MPIC users. In the process we fix two buglets. The first is that the allocation routines, now msi_bitmap_alloc_hwirqs(), returned an unsigned result, even though they use -1 to indicate allocation failure. Although all the callers were checking correctly, it is much better for the routine to just return an int. At least until someone wants > ~2 billion MSIs. The second buglet is that the device tree reservation logic only allowed power-of-two reservations. AFAICT that didn't effect any existing code but it's nicer if we can reserve arbitrary irqs from MSI use. We also add some selftests, which exposed the two buglets and now test for them, as well as some basic sanity tests. The tests are only built when CONFIG_DEBUG_KERNEL=y. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Paul Mackerras <[email protected]>
2008-08-20powerpc: fsl_msi doesn't need it's own of_nodeMichael Ellerman2-10/+5
The FSL MSI code keeps a pointer to the of_node from the device it represents. However it also has an irq_host, which contains a pointer to the of_node, so use that one instead. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Paul Mackerras <[email protected]>
2008-08-04powerpc: Remove use of CONFIG_PPC_MERGEKumar Gala1-2/+0
Now that arch/ppc is gone and CONFIG_PPC_MERGE is always set, remove the dead code associated with !CONFIG_PPC_MERGE from arch/powerpc and include/asm-powerpc. Signed-off-by: Kumar Gala <[email protected]> Signed-off-by: Paul Mackerras <[email protected]>
2008-07-28cpm2: Rework baud rate generators configuration to support external clocks.Laurent Pinchart1-30/+4
The CPM2 BRG setup functions cpm_setbrg and cpm2_fastbrg don't support external clocks. This patch adds a new exported __cpm2_setbrg function that takes the clock rate and clock source as extra parameters, and moves cpm_setbrg and cpm2_fastbrg to include/asm-powerpc/cpm2.h where they become inline wrappers around __cpm2_setbrg. Signed-off-by: Laurent Pinchart <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-28powerpc: rtc_cmos_setup: assign interrupts only if there is i8259 PICAnton Vorontsov1-6/+17
i8259 PIC is disabled on MPC8610HPCD boards, thus currently rtc-cmos driver fails to probe. To fix the issue, we lookup the device tree for "chrp,iic" and "pnpPNP,000" compatible devices, and if not found we do not assign RTC IRQ and assuming that i8259 was disabled. Though this patch fixes RTC on some boards (and surely should not break any other), the whole approach is still broken. We can't easily fix this though, because old device trees do not specify i8259 interrupts for the cmos rtc node. Signed-off-by: Anton Vorontsov <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-28powerpc: implement GPIO LIB API on CPM1 Freescale SoC.Jochen Friedrich1-5/+262
This patch implement GPIO LIB support for the CPM1 GPIOs. Signed-off-by: Jochen Friedrich <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-28cpm2: Implement GPIO LIB API on CPM2 Freescale SoC.Laurent Pinchart2-0/+134
This patch implement GPIO LIB support for the CPM2 GPIOs. The code can also be used for CPM1 GPIO port E, as both cores are compatible at the register level. Based on earlier work by Laurent Pinchart. Signed-off-by: Jochen Friedrich <[email protected]> Cc: Laurent Pinchart <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-25Merge branch 'merge' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (34 commits) powerpc: Wireup new syscalls Move update_mmu_cache() declaration from tlbflush.h to pgtable.h powerpc/pseries: Remove kmalloc call in handling writes to lparcfg powerpc/pseries: Update arch vector to indicate support for CMO ibmvfc: Add support for collaborative memory overcommit ibmvscsi: driver enablement for CMO ibmveth: enable driver for CMO ibmveth: Automatically enable larger rx buffer pools for larger mtu powerpc/pseries: Verify CMO memory entitlement updates with virtual I/O powerpc/pseries: vio bus support for CMO powerpc/pseries: iommu enablement for CMO powerpc/pseries: Add CMO paging statistics powerpc/pseries: Add collaborative memory manager powerpc/pseries: Utilities to set firmware page state powerpc/pseries: Enable CMO feature during platform setup powerpc/pseries: Split retrieval of processor entitlement data into a helper routine powerpc/pseries: Add memory entitlement capabilities to /proc/ppc64/lparcfg powerpc/pseries: Split processor entitlement retrieval and gathering to helper routines powerpc/pseries: Remove extraneous error reporting for hcall failures in lparcfg powerpc: Fix compile error with binutils 2.15 ... Fixed up conflict in arch/powerpc/platforms/52xx/Kconfig manually.
2008-07-25gpiolib: allow user-selectionMichael Buesch1-1/+1
This patch adds functionality to the gpio-lib subsystem to make it possible to enable the gpio-lib code even if the architecture code didn't request to get it built in. The archtitecture code does still need to implement the gpiolib accessor functions in its asm/gpio.h file. This patch adds the implementations for x86 and PPC. With these changes it is possible to run generic GPIO expansion cards on every architecture that implements the trivial wrapper functions. Support for more architectures can easily be added. Signed-off-by: Michael Buesch <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Stephen Rothwell <[email protected]> Cc: David Brownell <[email protected]> Cc: Russell King <[email protected]> Cc: Haavard Skinnemoen <[email protected]> Cc: Jesper Nilsson <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jean Delvare <[email protected]> Cc: Samuel Ortiz <[email protected]> Cc: Kumar Gala <[email protected]> Cc: Sam Ravnborg <[email protected]> Cc: Adrian Bunk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2008-07-25powerpc/pseries: iommu enablement for CMORobert Jennings1-1/+2
To support Cooperative Memory Overcommitment (CMO), we need to check for failure from some of the tce hcalls. These changes for the pseries platform affect the powerpc architecture; patches for the other affected platforms are included in this patch. pSeries platform IOMMU code changes: * platform TCE functions must handle H_NOT_ENOUGH_RESOURCES errors and return an error. Architecture IOMMU code changes: * Calls to ppc_md.tce_build need to check return values and return DMA_MAPPING_ERROR for transient errors. Architecture changes: * struct machdep_calls for tce_build*_pSeriesLP functions need to change to indicate failure. * all other platforms will need updates to iommu functions to match the new calling semantics; they will return 0 on success. The other platforms default configs have been built, but no further testing was performed. Signed-off-by: Robert Jennings <[email protected]> Acked-by: Olof Johansson <[email protected]> Acked-by: Paul Mackerras <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2008-07-22powerpc/dma: Use the struct dma_attrs in iommu codeMark Nelson1-1/+2
Update iommu_alloc() to take the struct dma_attrs and pass them on to tce_build(). This change propagates down to the tce_build functions of all the platforms. Signed-off-by: Mark Nelson <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2008-07-22powerpc/axonram: Enable partitioning of the Axons DDR2 DIMMsMaxim Shchetynin1-1/+4
DDR2 memory DIMMs on the Axon could be accessed only as one partition when using file system drivers which are using the direct_access() method. This patch enables for such file system drivers to access Axon's DDR2 memory even if it is splitted in several partitions. Signed-off-by: Maxim Shchetynin <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2008-07-22powerpc/axonram: Use only one block device major numberMaxim Shchetynin1-8/+15
Axonram module registers one block device for each DDR2 DIMM found on a system. This means that each DDR2 DIMM becomes its own block device major number. This patch lets axonram module to register the only one block device for all DDR2 DIMMs which also spares kernel resources. Signed-off-by: Maxim Shchetynin <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2008-07-16gianfar: Add magic packet and suspend/resume support.Scott Wood1-0/+3
Signed-off-by: Scott Wood <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-16powerpc: Fix a bunch of sparse warnings in the qe_libAndy Fleming3-14/+14
Mostly having to do with not marking things __iomem. And some failure to use appropriate accessors to read MMIO regs. Signed-off-by: Andy Fleming <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-16powerpc: Add support for multiple gfar mdio interfacesAndy Fleming1-46/+38
The old code assumed there was only one, but the 8572 actually has 3. Also, our usual id, 0xe0024520, gets resolved to -1 somewhere, and this was preventing the multiple buses from having different ids. So we only keep the low 20 bits, which have the interesting info, anyway. Signed-off-by: Andy Fleming <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-16powerpc/fsl_soc: gianfar: don't probe disabled devicesAnton Vorontsov1-0/+3
Freescale ships MPC8315E-RDB boards in two variants: 1. With TSEC1 ethernet support and USB UTMI PHY; 2. Without TSEC1 support, but with USB ULPI PHY in addition. For the second case U-Boot will add status = "disabled"; property into the TSEC1 node, so Linux should not try to probe it. Signed-off-by: Anton Vorontsov <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-16powerpc: Move mpc83xx_add_bridge to fsl_pci.cJohn Rigby2-0/+62
This allows other platforms with the same pci block like MPC5121 to use it. Signed-off-by: John Rigby <[email protected]> Acked-by: Grant Likely <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-16powerpc/mpc83xx: Power Management supportScott Wood2-0/+72
Basic PM support for 83xx. Standby is implemented as sleep. Suspend-to-RAM is implemented as "deep sleep" (with the processor turned off) on 831x. Signed-off-by: Scott Wood <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-16Merge commit 'origin/master'Benjamin Herrenschmidt1-1/+1
Manual merge of: arch/powerpc/Kconfig arch/powerpc/kernel/stacktrace.c arch/powerpc/mm/slice.c arch/ppc/kernel/smp.c
2008-07-15Merge commit 'gcl/gcl-next'Benjamin Herrenschmidt5-135/+102
2008-07-14powerpc/85xx: Add support for MPC8536DSKumar Gala1-0/+2
Add support for the MPC8536 process and MPC8536DS reference board. The MPC8536 is an e500v2 based SoC which eTSEC, USB, SATA, PCI, and PCIe. The USB and SATA IP blocks are similiar to those on the PQ2 Pro SoCs and thus use the same drivers. Signed-off-by: Kumar Gala <[email protected]>
2008-07-14powerpc/CPM: Minor cosmetic changes to udbg_putcNye Liu1-2/+1
udbg_putc is a *function pointer* that is initialized during udbg_init_cpm. It might not be initialized properly when called from udbg_putc_cpm(), so (recursively) call udbg_putc_cpm() directly. Signed-off-by: Nye Liu <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-07-12powerpc/mpc5200: fix compile warnings in bestcomm driverGrant Likely2-2/+2
Fix for the following compiler warnings: CC arch/powerpc/sysdev/bestcomm/bestcomm.o arch/powerpc/sysdev/bestcomm/bestcomm.c: In function 'mpc52xx_bcom_probe': arch/powerpc/sysdev/bestcomm/bestcomm.c:446: warning: format '%08lx' expects type 'long unsigned int', but argument 2 has type 'phys_addr_t' CC arch/powerpc/sysdev/bestcomm/sram.o arch/powerpc/sysdev/bestcomm/sram.c: In function 'bcom_sram_init': arch/powerpc/sysdev/bestcomm/sram.c:89: warning: format '%08lx' expects type 'long unsigned int', but argument 3 has type 'phys_addr_t' Signed-off-by: Grant Likely <[email protected]>
2008-07-12powerpc/mpc5200: Add PSC helpers for bestcomm engineGrant Likely2-0/+100
Simplify the interface for setting up bestcomm DMA to PSCs by adding some helper functions. The helper function sets the correct values for the initator and ipr values in PSC DMA tasks based on the PSC number. Signed-off-by: Grant Likely <[email protected]>
2008-07-12powerpc/i2c: Convert i2c-mpc into an of_platform driverJon Smirl1-133/+0
Convert i2c-mpc to an of_platform driver. Utilize the code in drivers/of-i2c.c to make i2c modules dynamically loadable by the device tree. Signed-off-by: Jon Smirl <[email protected]> Signed-off-by: Grant Likely <[email protected]>
2008-06-30Merge branch 'next' of ↵Paul Mackerras2-0/+20
master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx
2008-06-26powerpc: convert to generic helpers for IPI function callsJens Axboe1-1/+1
This converts ppc to use the new helpers for smp_call_function() and friends, and adds support for smp_call_function_single(). ppc loses the timeout functionality of smp_call_function_mask() with this change, as the generic code does not provide that. Acked-by: Paul Mackerras <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
2008-06-26powerpc/QE: use arch_initcall to probe QUICC Engine GPIOsAnton Vorontsov1-1/+4
It was discussed that global arch_initcall() is preferred way to probe QE GPIOs, so let's use it. Signed-off-by: Anton Vorontsov <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-06-17powerpc/4xx: Workaround for PPC440EPx/GRx PCI_28 ErrataJosh Boyer2-0/+11
The 440EPx/GRx chips don't support PCI MRM commands. Drivers determine this by looking for a zero value in the PCI cache line size register. However, some drivers write to this register upon initialization. This can cause MRMs to be used on these chips, which may cause deadlocks on PLB4. The workaround implemented here introduces a new indirect_type flag, called PPC_INDIRECT_TYPE_BROKEN_MRM. This is set in the pci_controller structure in the pci fixup function for 4xx PCI bridges by determining if the bridge is compatible with 440EPx/GRx. The flag is checked in the indirect_write_config function, and forces any writes to the PCI_CACHE_LINE_SIZE register to be zero, which will disable MRMs for these chips. A similar workaround has been tested by AMCC on various PCI cards, such as the Silicon Image ATA card and Intel E1000 GIGE card. Hangs were seen with the Silicon Image card, and MRMs were seen on the bus with a PCI analyzer. With the workaround in place, the card functioned properly and only Memory Reads were seen on the bus with the analyzer. Acked-by: Stefan Roese <[email protected]> Signed-off-by: Josh Boyer <[email protected]>
2008-06-11powerpc/QE: qe_reset should be __initAnton Vorontsov1-1/+1
This patch fixes following section mismatch: WARNING: arch/powerpc/sysdev/built-in.o(.text+0x11d8): Section mismatch in reference from the function qe_reset() to the function .init.text:cpm_muram_init() Signed-off-by: Anton Vorontsov <[email protected]> Signed-off-by: Kumar Gala <[email protected]>
2008-06-11powerpc/4xx: PCIe driver now detects if a port is disabled via the dev-treeStefan Roese1-0/+9
This patch add a check to the PPC4xx PCIe driver to detect if the port is disabled via the device-tree. This is needed for the AMCC Canyonlands board which has an option to either select 2 PCIe ports or 1 PCIe port and one SATA port. The SATA port and the 1st PCIe port pins are multiplexed so we can't start both drivers. Signed-off-by: Stefan Roese <[email protected]> Acked-by: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Josh Boyer <[email protected]>
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