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2007-10-03[POWERPC] Introduce new CPM device bindings.Scott Wood3-1/+183
This introduces a new device binding for the CPM and other devices on these boards. Some of the changes include: 1. Proper namespace scoping for Freescale compatibles and properties. 2. Use compatible rather than things like device_type and model to determine which particular variant of a device is present. 3. Give the drivers the relevant CPM command word directly, rather than requiring it to have a lookup table based on device-id, SCC v. SMC, and CPM version. 4. Specify the CPCR and the usable DPRAM region in the CPM's reg property. Boards that do not require the legacy bindings should select CONFIG_PPC_CPM_NEW_BINDING to enable the of_platform CPM devices. Once all existing boards are converted and tested, the config option can become default y to prevent new boards from using the old model. Once arch/ppc is gone, the config option can be removed altogether. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-03[POWERPC] CPM: Change from fsl,brg-frequency to brg/clock-frequencyScott Wood3-16/+24
As suggested by David Gibson, now that we have a separate node for the baud rate generators, it's better to use the standard clock-frequency property than a cpm-node-level fsl,brg-frequency property. This patch updates existing places where fsl,brg-frequency is used. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-10-04[PPC] Use cpu setup routines from cpu_setup_44x.S for ARCH=ppcPaul Mackerras2-11/+1
Commit 8112753bb2c0045398c89d0647792b39805f6d40 made 44x in ARCH=powerpc builds use cpu setup routines in cpu_setup_44x.S, but didn't make a similar change for ARCH=ppc, and consequently the ARCH=ppc builds fail with undefined symbols (since both use the same cputable.c). This fixes it by including cpu_setup_44x.S in the ARCH=ppc builds, and by taking out the now-redundant FPU initialization in arch/ppc/kernel/head_44x.S. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Uartlite: Revert register io access changesGrant Likely2-19/+19
Reverts commit a15da8eff3627b8368db7f5dd260e5643213d918 This driver is used by devices other than the xilinx opb-uartlite which depend on bytewise access to the registers. The change to 32 bit access does not work on these devices. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: Add macros for register namesGrant Likely1-6/+21
Add macros to define register names to improve readability. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Setup default eth addr in embed_config for Xilinx Virtex platformsGrant Likely1-0/+8
This simply adds the boilerplate default Ethernet address to embed_config for the Xilinx platform (bug fix). Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] XilinxFB: Move xilinxfb_platform_data definition to a shared header fileGrant Likely3-8/+25
XilnixFB can be used by more than just arch/ppc. Move the data structure definition into include/linux/xilinxfb.h so it can be used by microblaze and arch/powerpc Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: Flush RX fifo in bootwrapperGrant Likely2-1/+11
Flush the uartlite RX fifo so that characters typed before entry into the zImage wrapper do not muck up the kernel command line. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Add treeImage to .gitignoreJosh Boyer1-0/+1
Tell git to ignore the generated treeImage.* files in arch/powerpc/boot Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: Let the console be initialized earlierGrant Likely1-3/+38
By configuring it earlier we get console output sooner which is helpful for debugging when the kernel crashes before the serial drivers are initialized. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: Add of-platform-bus bindingGrant Likely1-4/+92
Add of_platform bus binding so this driver can be used with arch/powerpc Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: Comment block tidyGrant Likely1-3/+40
Tidy the comments to split the driver into logical section; the main driver, the console driver, the platform bus binding, and module initialization and teardown. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: Separate the bus binding from the driver properGrant Likely1-34/+65
Separate the bus binding code from the driver structure allocation code in preparation for adding the of_platform_bus bindings needed by arch/powerpc Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: Add macro for uartlite device nameGrant Likely1-2/+3
Changed to make the following OF_platform bus binding patch a wee bit cleaner Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: change name of ports to ulite_portsGrant Likely1-5/+5
Changed to match naming convention used in the rest of the module Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Uartlite: Fix reg io to access documented register sizeGrant Likely2-17/+17
The Uartlite data sheet defines the registers as 32 bit wide. This patch changes the register access to use 32 bit transfers and eliminates the magic +3 offset which is currently required to make the device work. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: John Williams <jwilliams@itee.uq.edu.au> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Add PowerPC Xilinx Virtex entry to maintainersGrant Likely1-0/+7
Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Virtex: Add generic Xilinx Virtex board supportGrant Likely2-0/+51
Adds support for generic Xilinx Virtex boards. Any board which specifies "xilinx,virtex" in the compatible property will make use of this board support. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Virtex: add xilinx interrupt controller driverGrant Likely3-0/+172
Adds support for the Xilinx opb-intc interrupt controller Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Virtex: Add Kconfig macros for Xilinx Virtex board supportGrant Likely1-13/+25
Add the needed kconfig macros to enable Xilinx Virtex board support Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Virtex: Add uartlite bootwrapper driverGrant Likely4-1/+68
Allows the bootwrapper to use the uartlite device for console output. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] 4xx: 440EPx/GRx incorrect write to DDR SDRAM errata workaroundValentine Barshak2-1/+27
Add a workaround for PowerPC 440EPx/GRx incorrect write to DDR SDRAM errata. Data can be written to wrong address in SDRAM when write pipelining enabled on plb0. We disable it in the cpu_setup for these processors at early init. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] 4xx: Move 440EP(x) FPU setup from head_44x to cpu_setup_4xxValentine Barshak3-10/+20
The PowerPC 440EP(x) FPU init is currently done in head_44x under ifdefs. Since we should support more then one board in the same kernel, we move FPU initialization code from head_44x to cpu_setup_44x and add cpu_setup callbacks for 440EP(x). Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] 4xx: Introduce cpu_setup functionality to 44x platformValentine Barshak3-6/+27
This adds cpu_setup functionality for ppc44x platform. Low level cpu-spefic initialization routines should be placed in cpu_setup_44x.S and a callback should be added to cputable. The cpu_setup is invoked by identify_cpu() function at early init. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] 4xx: Fix Walnut wrapper compile errorsJosh Boyer1-0/+1
Pass the appropriate -mcpu flag to the treeboot-walnut.o object to prevent some toolchains from erroring out with unknown opcodes Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-10-03[POWERPC] Enable tickless idle and high res timers for powerpcTony Breeds3-0/+10
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Implement clockevents driver for powerpcTony Breeds4-43/+94
This registers a clock event structure for the decrementer and turns on CONFIG_GENERIC_CLOCKEVENTS, which means that we now don't need most of timer_interrupt(), since the work is done in generic code. For secondary CPUs, their decrementer clockevent is registered when the CPU comes up (the generic code automatically removes the clockevent when the CPU goes down). Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Fix panic in RTAS codeTony Breeds1-6/+9
Some older pSeries machines were panicking in pSeries_log_error because it was getting called before it was ready. This is a result of commit "[POWERPC] pseries: Fix jumbled no_logging flag." (79c0108d1b9db4864ab77b2a95dfa04f2dcf264c). This fixes it by explicitly enabling RTAS error logging when it has been initialized, and also makes the code clearer by renaming the "no_more_logging" variable to "logging_enabled". Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Use alloc_maybe_bootmem() in pcibios_alloc_controllerLinas Vepstas1-5/+2
Use alloc_maybe_bootmem() which wraps the if (mem_init_done) malloc clause. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Celleb: update for PCIIshizaki Kou8-47/+396
This adds support for the PCI bus on Celleb with new "I/O routines for PowerPC." External PCI on Celleb must do explicit synchronization with devices (Bus has no automatic synchronization feature). Signed-off-by: Kou Ishizaki <Kou.Ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Celleb: Serial I/O updateIshizaki Kou1-24/+24
This is an update for Serial I/O on Celleb. - Detection algorithm has been changed Signed-off-by: Kou Ishizaki <Kou.Ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Celleb: New HTAB Guest OS Interface on BeatIshizaki Kou5-1/+204
This changes the Celleb code to work with new Guest OS Interface to tweak HTAB on Beat. It detects old and new Guest OS Interfaces automatically. Signed-off-by: Kou Ishizaki <Kou.Ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Celleb: Support for Power/Reset buttonsIshizaki Kou1-1/+93
This supports Power/Reset buttons on Beat on Celleb. On Beat, we have an event from Beat if Power button or Reset button is pressed. This patch catches the event and convert it to a signal to INIT process by calling ctrl_alt_del() function. /sbin/inittab have no entry to turn the machine power off so we have to detect if power button is pressed or not internally in our driver. This idea is taken from PS3's event handling subsystem. Signed-off-by: Kou Ishizaki <Kou.Ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Celleb: Move pause, kexec_cpu_down to beat.cIshizaki Kou3-13/+15
This is an update for "Beat on Celleb" - Move beat_pause(), beat_kexec_cpu_down() from setup.c to beat.c Signed-off-by: <Kou.Ishizaki@toshiba.co.jp> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] ibmebus: More descriptive error return code in ibmebus_store_probe()Joachim Fenkes1-2/+2
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Update axon_msi to use dcr_host_t.baseMichael Ellerman1-7/+6
Now that dcr_host_t contains the base address, we can use that in the axon_msi code, rather than storing it separately. 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>
2007-10-03[POWERPC] Update mpic to use dcr_host_t.baseMichael Ellerman2-23/+11
Now that dcr_host_t contains the base address, we can use that in the mpic code, rather than storing it separately. 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>
2007-10-03[POWERPC] Store the base address in dcr_host_tMichael Ellerman3-4/+10
In its current form, dcr_map() doesn't remember the base address you passed it, which means you need to store it somewhere else. Rather than adding the base to another struct it seems simpler to store it in the dcr_host_t. 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>
2007-10-03[POWERPC] Select proper defconfig for crosscompilesAdrian Bunk1-0/+4
The trick for finding the right defconfig is neat, but you forgot to provide an i686_defconfig. ;-) More seriously, cross compiling the defconfig is often useful, e.g. for testing the compilation of patches that touch multiple architectures, and this patch therefore chooses g5_defconfig if $(CROSS_COMPILE) is non-empty. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Sky Cpu and Nexus: use seq_file/single_open on proc interfaceCyrill Gorcunov2-44/+74
This patch changes proc interface to be used with single_file/seq_open calls. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Sky Cpu: use C99 style for struct initCyrill Gorcunov1-12/+9
This changes structure item init format to C99, and removes useless structure items init. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Brian Waite <waite@skycomputers.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Sky Cpu and Nexus: check for create_proc_entry ret codeCyrill Gorcunov1-2/+12
Adds checking of create_proc_entry call to prevent possible NULL pointer usage. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Brian Waite <waite@skycomputers.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Sky Cpu and Nexus: check for platform_get_resource retcodeCyrill Gorcunov2-1/+11
Add adds checking for platform_get_resource() return code to prevent possible NULL pointer usage. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Brian Waite <waite@skycomputers.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Sky Cpu and Nexus: include io.hCyrill Gorcunov2-0/+2
Add #include <asm/io.h> directive to properly declare ioremap() and writel(). Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Brian Waite <waite@skycomputers.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Sky Cpu and Nexus: code style improvementCyrill Gorcunov2-31/+31
Remove useless spaces and adds some empty lines to make code more readable. Also marker for printk is added. Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Brian Waite <waite@skycomputers.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] powerpc vDSO: install unstripped copies on diskRoland McGrath3-7/+40
This keeps an unstripped copy of the vDSO images built before they are stripped and embedded in the kernel. The unstripped copies get installed in $(MODLIB)/vdso/ by "make install". These files can be useful when they contain source-level debugging information. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Include pagemap.h in asm/powerpc/tlb.hMathieu Desnoyers1-0/+2
Fixes this powerpc build error in 2.6.22-rc6-mm1 for powerpc 64 with CONFIG_SWAP=n : In file included from include2/asm/tlb.h:60, from /home/compudj/git/linux-2.6-lttng/arch/powerpc/mm/init_64. c:56: /home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h: In function 'tlb_flush_mmu': /home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h:76: error: implicit declaration of function 'release_pages' /home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h: In function 'tlb_remove_page': /home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h:105: error: implicit declaration of function 'page_cache_release' make[2]: *** [arch/powerpc/mm/init_64.o] Error 1 release_pages is declared in linux/pagemap.h, but cannot be included in linux/swap.h because of a sparc related comment: /* only sparc can not include linux/pagemap.h in this file * so leave page_cache_release and release_pages undeclared... */ #define free_page_and_swap_cache(page) \ page_cache_release(page) #define free_pages_and_swap_cache(pages, nr) \ release_pages((pages), (nr), 0); Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] ppc64: support CONFIG_DEBUG_PREEMPTHugh Dickins6-5/+16
Add CONFIG_DEBUG_PREEMPT support to ppc64: it was useful for testing get_paca() preemption. Cheat a little, just use debug_smp_processor_id() in the debug version of get_paca(): it contains all the right checks and reporting, though get_paca() doesn't really use smp_processor_id(). Use local_paca for what might have been called __raw_get_paca(). Silence harmless warnings from io.h and lparcfg.c with local_paca - it is okay for iseries_lparcfg_data to be referencing shared_proc with preemption enabled: all cpus should show the same value for shared_proc. Why do other architectures need TRACE_IRQFLAGS_SUPPORT for DEBUG_PREEMPT? I don't know, ppc64 appears to get along fine without it. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Limit range of __init_ref_ok somewhatStephen Rothwell3-8/+18
This patch introduces zalloc_maybe_bootmem and uses it so that we don't have to mark a whole (largish) routine as __init_ref_ok. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] MAINTAINERS shouldn't reference linuxppc-embeddedMark A. Greer1-9/+8
Powerpc patches should be posted to linuxppc-dev@ozlabs.org, so modify MAINTAINERS to no longer reference linuxppc-embedded@ozlabs.org. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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