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* [POWERPC] Celleb: basic supportIshizaki Kou2007-02-079-0/+551
| | | | | | | | | This patch adds base support for Celleb platform. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> 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] Celleb: support spu priv1 opsIshizaki Kou2007-02-071-0/+208
| | | | | | | | SPU support routines for Celleb platform. 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>
* [POWERPC] Celleb: consolidate spu management opsIshizaki Kou2007-02-073-401/+448
| | | | | | | | | | Spu management ops in arch/platforms/cell/spu_priv1_mmio.h can be used commonly in of based platform. This patch separates spu management ops from native cell code and uses on celleb platform. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Celleb: support udbgIshizaki Kou2007-02-072-0/+99
| | | | | | | | This patch adds udbg support for Celleb platform. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Celleb: htab routinesIshizaki Kou2007-02-071-0/+311
| | | | | | | | Adds htab routines for Celleb platform. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Celleb: support iommuIshizaki Kou2007-02-071-0/+104
| | | | | | | | This patch creates Celleb platform dependent file to support iommu. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Celleb: setup usb host controller in SCCIshizaki Kou2007-02-071-0/+94
| | | | | | | | | USB host controller in SCC requires enable sequence. It should be done before USB host drivers start. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Celleb: support interruptsIshizaki Kou2007-02-072-0/+307
| | | | | | | | | This patch creates Celleb platform dependent files to support interrupts. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> 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] Celleb: interfaces to the hypervisorIshizaki Kou2007-02-072-0/+507
| | | | | | | | This patch creates Celleb platform dependent files which add interfaces to call hypervisor. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] powermac: local_irq_disable() is redundant after local_irq_save()Jiri Kosina2007-02-071-1/+0
| | | | | | | | | arch/powerpc/platforms/powermac/smp.c::smp_core99_kick_cpu() contains local_irq_disable() call after local_irq_save(). This looks redundant. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 86xx: local_irq_disable() is redundant after local_irq_save()Jiri Kosina2007-02-071-1/+0
| | | | | | | | | | arch/powerpc/platforms/86xx/mpc86xx_smp.c::smp_86xx_kick_cpu() contains local_irq_disable() call after local_irq_save(). This looks redundant. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] mpc8272ads: defconfigVitaly Bordug2007-02-071-0/+848
| | | | | | | | | Default config file for mpc8272ads (powerpc port).Though relevant bits went in, it is required to keep proper default configuration for the target, which seems to be missed initially. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix kernel build errors for mpc8272ads and mpc8560adsVitaly Bordug2007-02-075-8/+10
| | | | | | | | | | | | | | | | | | | | Recent update of asm-powerpc/io.h caused cpm-related stuff to break in the current kernel. Current patch fixes it, as well as other inconsistencies expressed, that do not permit targets from working properly: - Updated dts with a chosen node with interrupt controller, - fixed messed device IDs among CPM2 SoC devices, - corrected odd header name and fixed type in defines, - Added 82xx subdir to the powerpc/platforms Makefile, missed during initial commit, - new solely-powerpc header file for 8260 family (was using one from arch/ppc, this one cleaned up from the extra stuff), in fact for now a placeholder to get the board-specific includes for stuff not yet capable to live with devicetree peeks only - Fixed couple of misprints in reference mpc8272 dts. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] cpm2: CPM2 interrupt controller fixVitaly Bordug2007-02-074-88/+121
| | | | | | | | | | | | This contains important fixes for the CPM2 PIC code. Eliminated CPM_IRQ_OFFSET, pulling the respective interrupt numbers from the interrupt mapping. Updated devicetree files to reflect that. Changed direct IC-related IO accesses to the IO accessors. Fixed all the sense values to keep coherency with ipic. In the current code, CPM2 stuff will have no IRQs and hence could be hardly usable. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] PS3: Enable USB mass storageGeoff Levand2007-02-071-4/+17
| | | | | | | | Update ps3_defconfig to enable USB mass storage and VFAT. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] PS3: Fix DMA scatter-gatherGeoff Levand2007-02-071-2/+21
| | | | | | | | Add the missing pieces to support DMA scatter-gather on the PS3 system bus. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] PS3: Move system bus to platform directoryGeoff Levand2007-02-0711-8/+519
| | | | | | | | | | Move the PS3 system bus routines from drivers/ps3 to arch/powerpc/platforms/ps3. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add "is_power_of_2" checking to log2.h.Robert P. J. Day2007-02-073-10/+2
| | | | | | | | | Add the inline function "is_power_of_2()" to log2.h, where the value zero is *not* considered to be a power of two. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] MPIC: support more than 256 sourcesOlof Johansson2007-02-072-24/+45
| | | | | | | | | | | | | Allow more than the default 256 MPIC sources. Allocates a new flag (MPIC_LARGE_VECTORS) to be used by platform code when instantiating the mpic. I picked 11 bits worth right now since it would cover the number of sources on any hardware I have seen. It can always be increased later if needed. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] PA6T PMC supportOlof Johansson2007-02-072-50/+95
| | | | | | | | | | Support for PA6T-style PMC registers. PMCs are completely implementation-dependent on PPC, and PA6T numbers them differently from the IBM model. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add PMC type to cputableOlof Johansson2007-02-072-26/+26
| | | | | | | | | | | | | | | Add cputable entries for which type of PMC implementation the processor has. I've only filled in the current 64-bit processors, the unfilled default value will have same behaviour as before so it can be done over time as needed. Also tidy up the dummy_perf implementation a bit, aggregating it into one function with ifdefs instead of several. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Oprofile cleanupOlof Johansson2007-02-074-15/+96
| | | | | | | | | | Clean up the ctr_read/write a bit. It's currently defined in the include but only used in one C file each. The only exception is the classic version, so keep that in the include and define in the C file as appropriate. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix array indexing error in rheap grow()Timur Tabi2007-02-071-1/+2
| | | | | | | | | | | | | | The grow() function in the rheap library allocates a larger array of blocks, copies the contents of the old blocks array to the newly allocated array and fixes the list_head pointers after the copy. At the end, the new blocks must be enqueued to the empty_list of the rh_info_t structure. This patch fixes a bug where the code was indexing past the end of the array when enqueueing blocks. The UCC ethernet driver, which uses the rheap allocator, experiences kernel panics because of this bug. Signed-off-by: Ionut Nicu <ionut.nicu@freescale.com> Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: ps3_defconfig updatesGeoff Levand2007-02-071-25/+200
| | | | | | | | Updates for ps3_defconfig. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: get av_multi_out paramsGeert Uytterhoeven2007-02-071-7/+10
| | | | | | | | | | Allow the PS3 AV settings driver to access the default video mode stored in the OS area. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: get firmware versionGeoff Levand2007-02-071-0/+20
| | | | | | | | | Add a new routine ps3_get_firmware_version() and use it to output the firmware version to dmesg. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: remove cpuinfoGeoff Levand2007-02-071-6/+0
| | | | | | | | | Remove the unneded routine ps3_show_cpuinfo(). The common platform code now prints the same information. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: fix interrupt bmpGeoff Levand2007-02-071-1/+6
| | | | | | | | | Add a comment and a preprocessor macro to help clearify the alignment needs of the PS3 interrupt bitmap. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: add interrupt alloc for outletsGeert Uytterhoeven2007-02-071-10/+14
| | | | | | | | | | | | PS3 interrupt core update: - Add ps3_alloc_irq() and ps3_free_irq(), to allocate a virtual interrupt number for an interrupt outlet, which is needed by the PS3 GPU frame buffer device and audio drivers Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: bind interrupt to cpuGeoff Levand2007-02-073-131/+182
| | | | | | | | | | | | Change the PS3 irq allocation routines to take an argument indicating which cpu (processor thread) the interrupt should be serviced on. The current system configuration favors device interrupts that are serviced on cpu0, so that is used as the default. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: cleanup interrupt bmp routinesBenjamin Herrenschmidt2007-02-071-47/+38
| | | | | | | | | Change the PS3 interrupt bitmask routines to be lockless. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: smp interrupt fixesGeoff Levand2007-02-071-31/+29
| | | | | | | | | | | | PS3 fixups for interrups on SMP. Fixes the alignment of the interrupt status bitmap, changes the hypervisor interrupt calls to the '_ext' versions that take an explicit processor thread ID. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: rename interrupt symbolsGeoff Levand2007-02-071-33/+33
| | | | | | | | | | Rename some PS3 interrupt symbols to avoid name clashes and aid debugging. No change to code. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: fix struct alignment attributesGeoff Levand2007-02-072-5/+4
| | | | | | | | | Remove incorrect alignment attributes in PS3 platform code for struct spe_shadow, struct os_area_header, and struct os_area_params. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: repository storage supportGeert Uytterhoeven2007-02-071-2/+183
| | | | | | | | | | | | | | Handle storage-related repository data: - Add missing implementations of ps3_repository_read_stor_*() repository accessors. - Dump storage properties in debug mode - Add PS3_DEV_TYPE_STOR_{DISK,ROM,FLASH} device types (which are identical to the corresponding SCSI device types) to enum ps3_dev_type Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] ps3: repository misc fixesGeoff Levand2007-02-071-13/+19
| | | | | | | | | | | | | | | | | | Various fixes for the PS3 repository code: - Sync signatures of function prototypes and implementations (enum vs. unsigned int) - Correct references to `regions' as `registers': o Correct enum ps3_region_type as enum ps3_reg_type, o Correct PS3_REGION_TYPE_* as PS3_REG_TYPE_*, o Correct ps3_repository_find_region() as ps3_repository_find_reg(). - Correct function name in pr_debug() call - Minor error condition improvements. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] pSeries: EEH improperly enabled for some Power4 systemsLinas Vepstas2007-02-071-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It appears that EEH is improperly enabled for some Power4 systems. On these systems, the ibm,set-eeh-option returns a value of success even when EEH is not supported on the given node. Thus, an explicit check for support is required. During boot, on power4, without this patch, one sees messages similar to: EEH: event on unsupported device, rc=0 dn=/pci@400000000110/IBM,sp@1 EEH: event on unsupported device, rc=0 dn=/pci@400000000110/pci@2 EEH: event on unsupported device, rc=0 dn=/pci@400000000110/pci@2,2 etc. The patch makes these go away. Without this patch, EEH recovery does seem to work correctly for at least some devices (I tested ethernet e1000), but fails to recover others (the Emulex LightPulse LPFC, most notably). Off the top of my head, I don't remember why some devices are affected, but not others. The PAPR indicates that the correct way to test for EEH is as done in this patch; its not clear to me if this was in the PAPR all along, or recently added; if it was there all along, its not clear to me why this hadn't been fixed long ago. I suspect only certain firmware levels are affected. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix apparent typo "CONFIG_SERIAL_CPM_SMC".Robert P. J. Day2007-02-071-1/+1
| | | | | | | | | Replace an apparent typo of CONFIG_SERIAL_CPM_SMC with CONFIG_SERIAL_CPM_SMC2. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Maple: don't override bus-range supplied by firmwareNathan Lynch2007-02-071-8/+0
| | | | | | | | This workaround was copy-pasted from the powermac code. It's not necessary for maple. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add mpc866ads board-specific bits to arch/powerpcVitaly Bordug2007-02-075-0/+1388
| | | | | | | | | This add support of the Freescale mpc86xads reference board to arch/powerpc. Supported SMC1 and SMC2 (UART and serial console), FEC 100Mbps Ethernet, SCC1 Ethernet (10Mbps hdx) Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 8xx: Add mpc885ads support and common mpc8xx filesVitaly Bordug2007-02-078-257/+1846
| | | | | | | | | This adds the core 8xx stuff and specifically mpc885ads board-specific bits to arch/powerpc. Respective Kconfig has been cleaned up from the stuff not yet ported over to avoid confusion. Updated and cleaned version. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 8xx: powerpc port of core CPM PICVitaly Bordug2007-02-075-0/+1352
| | | | | | | | | | This covers common CPM access functions, CPM interrupt controller code, micropatch and a few compatibility things to kee the same driver base working with arch/ppc. This version is refined with all the comments (mostly PIC-related) addressed. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 8xx: platform related changes to the fsl_socVitaly Bordug2007-02-071-2/+272
| | | | | | | | | Added 8xx SoC peripherials: fec for Ethernet and smc for UARTs. Ordinary routines to extract values from the device tree and insert respective platform devices Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 8xx: generic 8xx code arch/powerpc portVitaly Bordug2007-02-074-27/+11
| | | | | | | | | | | | | | | | | Including support for non-coherent cache, some mm-related things + relevant field in Kconfig and Makefiles. Also included rheap.o compilation if 8xx is defined. Non-coherent mapping were refined and renamed according to Cristoph Hellwig. Orphaned functions were cleaned up. [Also removed arch/ppc/kernel/dma-mapping.c, because otherwise compiling with ARCH=ppc for a non DMA-cache-coherent platform ends up with two copies of __dma_alloc_coherent etc. -- paulus.] Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 8xx: platform specific mmu updatesVitaly Bordug2007-02-071-10/+10
| | | | | | | | | | | | | This is just a straight port of the same done in arch/ppc by Marcelo Tosatti. One used to be [PATCH] ppc32 8xx: update_mmu_cache() needs unconditional tlbie, commit eb07d964b4491d1bb5864cd3d7e7633ccdda9a53 In a nutshell, the board is nearly stuck without this, yet without any visible failure - being just very slow. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 83xx: Add the mpc8323emds.dtsKim Phillips2007-01-301-0/+345
| | | | | | | | Add the mpc8323emds device tree source (dts) Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] 83xx: Add the mpc832xemds defconfigKim Phillips2007-01-301-0/+1083
| | | | | | | | The defconfig for the 8323EMDS is identical to the 8360E MDS defconfig, except CONFIG_MATH_EMULATION is set, since the 8323 doesn't have a FPU. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Enable stack debug features on ppc32Kumar Gala2007-01-301-2/+2
| | | | | | | Enable stack overflow checking (DEBUG_STACKOVERFLOW) and stack usage (DEBUG_STACK_USAGE) on ppc32. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Merge branch '83xx' into for_paulusKumar Gala2007-01-302-0/+2
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| * [POWERPC] 83xx: Fix compiler warnings on 836x and 832xLi Yang2007-01-302-0/+2
| | | | | | | | | | | | | | | | Some prototypes are separated from of_device.h into of_platform.h. Add the new include to fix warning. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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