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* [POWERPC] pasemi: iommu supportOlof Johansson2007-02-071-0/+1
| | | | | | | I/O TLB support for PA6T-1682M. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] pasemi: SMP timebase syncOlof Johansson2007-02-071-0/+6
| | | | | | | | Timebase update is simple on PA6T, since global updates can be done from one core by writing to an SPR. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] pasemi: Idle loopsOlof Johansson2007-02-071-0/+1
| | | | | | | | | Powersave support on PA6T. Right now it only uses 'doze' mode, and will default to no savings (spin). Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] pasemi: UART udbg supportOlof Johansson2007-02-071-0/+1
| | | | | | | Early debug output for PA Semi UART. Uses the 2.05 CI real mode ops. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Celleb: basic supportIshizaki Kou2007-02-072-0/+10
| | | | | | | | | 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: consolidate spu management opsIshizaki Kou2007-02-072-0/+15
| | | | | | | | | | 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 Kou2007-02-071-0/+1
| | | | | | | | 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/+1
| | | | | | | | 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] Fix kernel build errors for mpc8272ads and mpc8560adsVitaly Bordug2007-02-072-0/+12
| | | | | | | | | | | | | | | | | | | | 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 Bordug2007-02-071-0/+24
| | | | | | | | | | | | 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: Move vuart declarations to ps3.hGeoff Levand2007-02-071-0/+35
| | | | | | | | | Move the structures and routines needed for PS3 vuart port device registration to asm-powerpc/ps3.h. 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: Move system bus to platform directoryGeoff Levand2007-02-071-150/+0
| | | | | | | | | | 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. Day2007-02-071-0/+11
| | | | | | | | | 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 Johansson2007-02-071-15/+9
| | | | | | | | | | | | | 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 Johansson2007-02-071-0/+7
| | | | | | | | | | 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] Introduce _SYSDEV_ATTROlof Johansson2007-02-071-4/+8
| | | | | | | | | Introduce _SYSDEV_ATTR(), to be used to just define the struct, and not a named variable with the attribute. Useful for arrays of sysdev_attributes. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add PMC type to cputableOlof Johansson2007-02-071-0/+7
| | | | | | | | | | | | | | | 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 Johansson2007-02-071-87/+2
| | | | | | | | | | 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] ps3: remove unneeded header includeGeoff Levand2007-02-071-1/+0
| | | | | | | | Remove an unneeded header include from ps3.h. 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 Uytterhoeven2007-02-071-0/+11
| | | | | | | | | | 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/+12
| | | | | | | | | 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: add interrupt alloc for outletsGeert Uytterhoeven2007-02-071-0/+3
| | | | | | | | | | | | 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 Levand2007-02-071-7/+16
| | | | | | | | | | | | 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: repository storage supportGeert Uytterhoeven2007-02-071-7/+17
| | | | | | | | | | | | | | 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 Levand2007-02-071-8/+8
| | | | | | | | | | | | | | | | | | 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] Add mpc866ads board-specific bits to arch/powerpcVitaly Bordug2007-02-071-0/+4
| | | | | | | | | 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: powerpc port of core CPM PICVitaly Bordug2007-02-074-10/+62
| | | | | | | | | | 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] remove unused CPU_FTRS_POWER6XMichael Neuling2007-02-071-6/+0
| | | | | | | | CPU_FTRS_POWER6X is unused, hence remove it. Signed-off-by Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] 83xx: Return a point to the struct ipic from ipic_init()Kumar Gala2007-01-261-1/+1
| | | | | | | | | | | | It's useful to have access to struct ipic handle that just got created in ipic_init(). For example, if we want to setup an external IRQ with out a device node we need access ipic->irqhost to create the virtual to HW IRQ mapping and to set the IRQ sense. With this we can mimic the old sense array concept that existed in arch/ppc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* [POWERPC] Add IRQ remapping hookIshizaki Kou2007-01-241-0/+3
| | | | | | | | | | This patch adds irq remapping hook. On interrupt mechanism on Beat, when an irq outlet which has an id which is formerly used is created, remapping the irq is required. 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] Add a field for each specific bus to struct pci_controllerIshizaki Kou2007-01-241-0/+2
| | | | | | | | | Struct pci_controller doesn't prepare for the dependent data of each specific bus. This patch adds private member to struct pci_controller. 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] Remove the broken Gemini supportAdrian Bunk2007-01-242-79/+0
| | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Move ELF_ET_DYN_BASE up to 512MB pointAnton Blanchard2007-01-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I often test new versions of glibc by doing: LD_LIBRARY_PATH=/XXX/lib /XXX/lib/ld.so.1 <binary> One test case ended up SEGV'ing. Upon closer inspection ld.so was loaded at 0x8000000 (128MB) with the heap right after it. Since we normally link binaries at 0x10000000 (256MB) we only had about 128MB of space for the heap: 00100000-00103000 r-xp 00100000 00:00 0 [vdso] 08000000-0801e000 r-xp 00000000 00:01 33079 /lib/ld-2.5.so 0802d000-0802f000 rwxp 0001d000 00:01 33079 /lib/ld-2.5.so 0802f000-08050000 rwxp 0802f000 00:00 0 [heap] 0fe91000-0ffd9000 r-xp 00000000 00:01 33082 /lib/libc-2.5.so 0ffd9000-0ffe8000 ---p 00148000 00:01 33082 /lib/libc-2.5.so 0ffe8000-0ffea000 r--p 00147000 00:01 33082 /lib/libc-2.5.so 0ffea000-0ffed000 rwxp 00149000 00:01 33082 /lib/libc-2.5.so 10000000-10004000 r-xp 00000000 00:01 76 /bin/sleep 10013000-10014000 rwxp 00003000 00:01 76 /bin/sleep ffb41000-ffb56000 rw-p ffb41000 00:00 0 [stack] One way to fix this is move ELF_ET_DYN_BASE from 0x08000000 to 0x20000000. This allows 128MB for the binary (hopefully enough for even the most crazy c++ apps), and with our current layout we will grow the heap up and the stack down, allowing potentially gigabytes of heap: 00100000-00103000 r-xp 00100000 00:00 0 [vdso] 0fe8a000-0ffd3000 r-xp 00000000 00:01 3350 /lib/tls/libc-2.3.6.so 0ffd3000-0ffe3000 ---p 00149000 00:01 3350 /lib/tls/libc-2.3.6.so 0ffe3000-0ffea000 r--p 00149000 00:01 3350 /lib/tls/libc-2.3.6.so 0ffea000-0ffee000 rwxp 00150000 00:01 3350 /lib/tls/libc-2.3.6.so 10000000-10004000 r-xp 00000000 00:01 76 /bin/sleep 10013000-10014000 rwxp 00003000 00:01 76 /bin/sleep 20000000-20018000 r-xp 00000000 00:01 3478 /lib/ld-2.3.6.so 20028000-20029000 r--p 00018000 00:01 3478 /lib/ld-2.3.6.so 20029000-2002a000 rwxp 00019000 00:01 3478 /lib/ld-2.3.6.so 2002a000-2004b000 rwxp 2002a000 00:00 0 [heap] ffd67000-ffd7c000 rw-p ffd67000 00:00 0 [stack] Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] x86: fix PDA variables to work during bootJames Bottomley2007-01-221-0/+1
| | | | | | | | | | | | | | | | | | | The current PDA code, which went in in post 2.6.19 has a flaw in that it doesn't correctly cycle the GDT and %GS segment through the boot PDA, the CPU PDA and finally the per-cpu PDA. The bug generally doesn't show up if the boot CPU id is zero, but everything falls apart for a non zero boot CPU id. The basically kills voyager which is perfectly capable of doing non zero CPU id boots, so voyager currently won't boot without this. The fix is to be careful and actually do the GDT setups correctly. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Cc: Andi Kleen <ak@suse.de> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.infradead.org/mtd-2.6Linus Torvalds2007-01-225-15/+36
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (84 commits) [JFFS2] debug.h: include <linux/sched.h> for current->pid [MTD] OneNAND: Handle DDP chip boundary during read-while-load [MTD] OneNAND: return ecc error code only when 2-bit ecc occurs [MTD] OneNAND: Implement read-while-load [MTD] OneNAND: fix onenand_wait bug in read ecc error [MTD] OneNAND: release CPU in cycles [MTD] OneNAND: add subpage write support [MTD] OneNAND: fix onenand_wait bug [JFFS2] use the ref_offset macro [JFFS2] Reschedule in loops [JFFS2] Fix error-path leak in summary scan [JFFS2] add cond_resched() when garbage collecting deletion dirent [MTD] Nuke IVR leftovers [MTD] OneNAND: fix oob handling in recent oob patch [MTD] Fix ssfdc blksize typo [JFFS2] replace kmalloc+memset with kzalloc [MTD] Fix SSFDC build for variable blocksize. [MTD] ESB2ROM uses PCI [MTD] of_device-based physmap driver [MTD] Support combined RedBoot FIS directory and configuration area ...
| * Merge branch 'master' of ↵David Woodhouse2007-01-181059-19654/+21787
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | [MTD] OneNAND: Implement read-while-loadAdrian Hunter2007-01-101-0/+1
| | | | | | | | | | | | | | | | | | | | | Read-while-load enables higher performance read operations. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| * | [MTD] OneNAND: add subpage write supportKyungmin Park2007-01-101-0/+2
| | | | | | | | | | | | | | | | | | OneNAND supports up to 4 writes at one NAND page. Add support of this feature. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| * | Merge branch 'master' of ↵David Woodhouse2006-12-01142-680/+892
| |\ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | | [MTD] add get and put methodsArtem Bityutskiy2006-11-291-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds get_device() and put_device() methods to the MTD description structure (struct mtd_info). These methods are called by MTD whenever the MTD device is get or put. They are needed when the underlying driver is something smarter then just flash chip driver, for example UBI. Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
| * | | [MTD] add get_mtd_device_nm() functionArtem Bityutskiy2006-11-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds one more function to the MTD interface to make it possible to open MTD devices by their names, not only numbers. This is very handy in many situations. Also, MTD device number depend on load order and may vary, while names are fixed. Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
| * | | [MTD] NAND: add subpage write supportThomas Gleixner2006-11-292-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Many SLC NANDs support up to 4 writes at one NAND page. Add support of this feature. Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
| * | | [MTD] increase MAX_MTD_DEVICESArtem Bityutskiy2006-11-291-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
| * | | Merge git://git.infradead.org/~kmpark/onenand-mtd-2.6David Woodhouse2006-11-292-1/+5
| |\ \ \
| | * | | [MTD] OneNAND: Single bit error detectionKyungmin Park2006-11-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Idea from Jarkko Lavinen Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | | [MTD] OneNAND: lock supportKyungmin Park2006-11-161-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now you can use mtd lock inferface on OneNAND The idea is from Nemakal, Vijaya, thanks Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | | MTD: OneNAND: interrupt based wait supportKyungmin Park2006-11-161-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can use the two methods to wait. 1. polling: read interrupt status register 2. interrupt: use kernel ineterrupt mechanism To use interrupt method, you first connect onenand interrupt pin to your platform and configure interrupt properly Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
| * | | | [MTD] [NAND] remove len/ooblen confusion.Vitaly Wool2006-11-281-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As was discussed between Ricard Wanderlöf, David Woodhouse, Artem Bityutskiy and me, the current API for reading/writing OOB is confusing. The thing that introduces confusion is the need to specify ops.len together with ops.ooblen for reads/writes that concern only OOB not data area. So, ops.len is overloaded: when ops.datbuf != NULL it serves to specify the length of the data read, and when ops.datbuf == NULL, it serves to specify the full OOB read length. The patch inlined below is the slightly updated version of the previous patch serving the same purpose, but with the new Artem's comments taken into account. Artem, BTW, thanks a lot for your valuable input! Signed-off-by: Vitaly Wool <vwool@ru.mvista.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | [MTD] Allow variable block sizes in mtd_blkdevsRichard Purdie2006-11-281-1/+2
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, mtd_blkdevs enforces a block size of 512, even if the drivers can seemingly request a different size. This patch fixes mtd_blkdevs so block sizes other than 512 work correctly. Signed-off-by: Richard Purdie <rpurdie@openedhand.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | [MTD] NAND: Combined oob buffer so it's contiguous with dataDavid Woodhouse2006-10-211-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ditch the separate oobrbuf and oobwbuf fields from the chip buffers, and use only a single buffer immediately after the data. This accommodates NAND controllers such as the OLPC CAFÉ chip, which can't do scatter/gather DMA so needs the OOB buffer to be contiguous with the data, for both read and write. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
generated by cgit (git 2.34.1) at 2024-11-18 06:21:16 +0000