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path: root/drivers/mtd/chips/cfi_cmdset_0002.c
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2015-05-27mtd: cfi_cmdset_0002: Initialize datum before calling map_word_load_partialChristian Riesch1-1/+1
In do_otp_write we must initialize the variable datum before calling map_word_load_partial. Otherwise the upper bits of datum may be undefined, which later causes problems in chip_good called by do_write_oneword. Signed-off-by: Christian Riesch <christian.riesch@omicron.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-08-19Merge l2-mtd/next into l2-mtd/masterBrian Norris1-0/+2
2014-08-19mtd: cfi_cmdset_0002: allow retry/timeout loop to exitBrian Norris1-0/+2
The variable 'retries' is never modified, so if the reset operation never is going to complete, we'll get stuck in an infinite loop. It looks like the intention was to decrement 'retries' on every loop. Untested. Caught by Coverity. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-08-15mtd: cfi_cmdset_0002: check return code for get_chip()Brian Norris1-0/+4
Coverity CID 1230633 Signed-off-by: Brian Norris <computersforpeace@gmail.com> Tested-by: Christian Riesch <christian.riesch@omicron.at>
2014-07-16mtd: cfi_cmdset_0002: fix do_write_buffer() timeout errorBean Huo1-2/+23
For some NOR flashes, the size of the buffer program has been increased from 256 bytes to 512 bytes, and so 2ms maximum timeout can may not be sufficient for all different vendor's NOR flash. There is maximum timeout information in the CFI area, so we instead of picking a fixed value, we can calculate this according to the standard CFI parameters parsed at probe time. If we haven't probed this information, or it is smaller than 2000us, then specify a minimum value 2000us. Tested with Micron JS28F512M29EWx and Micron MT28EW512ABA flash devices. Signed-off-by: Bean Huo <beanhuo@outlook.com> [Brian: fix up comments, use 'max()'] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-07-11mtd: cfi_cmdset_0002: Add support for locking OTP memoryChristian Riesch1-5/+84
This patch adds support for the locking of the one time programmable (OTP) memory of Micron M29EW devices. Signed-off-by: Christian Riesch <christian.riesch@omicron.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-07-11mtd: cfi_cmdset_0002: Add support for writing OTP memoryChristian Riesch1-7/+60
This patch adds support for writing the one time programmable (OTP) memory of Micron M29EW devices. Signed-off-by: Christian Riesch <christian.riesch@omicron.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-07-11mtd: cfi_cmdset_0002: Invalidate cache after entering/exiting OTP memoryChristian Riesch1-10/+34
When the one time programmable (OTP) memory region is entered by issuing the 0xaa/0x55/0x88 command, the OTP memory occupies the addresses which are normally used by the first sector of the regular flash memory. This patch therefore invalidates cache for this addresses after entering/exiting OTP memory. This patch also moves the code into separate functions. Signed-off-by: Christian Riesch <christian.riesch@omicron.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-07-11mtd: cfi_cmdset_0002: Add support for reading OTPChristian Riesch1-0/+156
The Micron M29EW has a 256 byte one time programmable (OTP) memory. This patch adds support for reading this memory. This support will be extended for locking and writing in subsequent patches. Signed-off-by: Christian Riesch <christian.riesch@omicron.at> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-03-10mtd: cfi: Remove unnecessary OOM messagesJingoo Han1-6/+2
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2014-03-10mtd: delete non-required instances of include <linux/init.h>Paul Gortmaker1-1/+0
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: linux-mtd@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> [Brian: dropped one incorrect hunk] Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2013-08-05mtd: cfi_cmdset_0002: print @adr when write timeout occursHuang Shijie1-2/+2
Print out the @adr when the write timeout occurs. This is useful to check if the write timeouts occur at the same address. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2013-02-04mtd: cfi_cmdset_0002: Support Persistent Protection Bits (PPB) lockingStefan Roese1-0/+217
Currently cfi_cmdset_0002.c does not support PPB locking of sectors. This patch adds support for this locking/unlocking mechanism. It is needed on some platforms, since newer U-Boot versions do support this PPB locking and protect for example their environment sector(s) this way. This PPB locking/unlocking will be enabled for all devices supported by cfi_cmdset_0002 reporting 8 in the CFI word 0x49 (Sector Protect/Unprotect scheme). Please note that PPB locking does support sector-by-sector locking. But the whole chip can only be unlocked together. So unlocking one sector will automatically unlock all sectors of this device. Because of this chip limitation, the PPB unlocking function saves the current locking status of all sectors before unlocking the whole device. After unlocking the saved locking status is re-configured. This way only the addressed sectors will be unlocked. To selectively enable this advanced sector protection mechanism, the device-tree property "use-advanced-sector-protection" has been created. To enable support for this locking this property needs to be present in the flash DT node. E.g.: nor_flash@0,0 { compatible = "amd,s29gl256n", "cfi-flash"; bank-width = <2>; use-advanced-sector-protection; ... Tested with Spansion S29GL512S10THI and Micron JS28F512M29EWx flash devices. Signed-off-by: Stefan Roese <sr@denx.de> Tested-by: Holger Brunck <holger.brunck@keymile.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-12-03mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.cHarald Nordgard-Hansen1-2/+14
When working on a problem with some flash chips that lock up during write-buffer operations, I think there may be a bug in the linux handling of chips using cfi_cmdset_0002.c. The datasheets I have found for a number of these chips all specify that when aborting a write-buffer command, it is not enough to use the standard reset. Rather a "write-to-buffer-reset command" is needed. This command is quite similar for all chips, the main variance seem to be if the final 0xF0 can go to any address or must go to addr_unlock1. The bug is then in the recovery handling when timing out at the end of do_write_buffer, where using the normal reset command is not sufficient. Without this change, if the write-buffer command fails then any following operations on the flash also fail. Signed-off-by: Harald Nordgard-Hansen <hhansen@pvv.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-07-16mtd: cfi_cmdset_0002: Micron M29EW bugfixes as per TN-13-07Gerlando Falauto1-0/+67
Fix the following issues with Micron's (formerly Numonyx) M29EW NOR flash chips, as documented on TN-13-07: - Correcting Erase Suspend Hang Ups (page 20) - Resolving the Delay After Resume Issue (page 22) Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-05-13mtd: cfi_cmdset_0002: Slight cleanup of fixup messagesDavid Woodhouse1-3/+3
These should be semicolons, not commas. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-05-13mtd: add fixup for S29NS512P NOR flash.Javier Martin1-0/+14
Spansion S29NS512P flash uses a 16bit transfer to report number of sectors instead of two 8bit accesses as CFI specifies. Artem: remove warning message which said that we are applying the fixup - no need to scary the user unnecessarily. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27mtd: chips: cfi_cmdset_0002: Match ENABLE_VPP()/DISABLE_VPP() callsPaul Parsons1-2/+4
This patch is part of a set which fixes unnecessary flash erase and write errors resulting from the MTD CFI driver turning off vpp while an erase is in progress. This patch ensures that only those flash operations which call ENABLE_VPP() can then call DISABLE_VPP(). Other operations should never call DISABLE_VPP(). Signed-off-by: Paul Parsons <lost.distance@yahoo.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27mtd: move zero length verification to MTD API functionsArtem Bityutskiy1-9/+0
In many places in drivers we verify for the zero length, but this is very inconsistent across drivers. This is obviously the right thing to do, though. This patch moves the check to the MTD API functions instead and removes a lot of duplication. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27mtd: remove retlen zeroing duplicationArtem Bityutskiy1-12/+0
The MTD API function now zero the 'retlen' parameter before calling the driver's method — do not do this again in drivers. This removes duplicated '*retlen = 0' assignent from the following methods: 'mtd_point()' 'mtd_read()' 'mtd_write()' 'mtd_writev()' 'mtd_panic_write()' Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27mtd: add leading underscore to all mtd functionsArtem Bityutskiy1-13/+13
This patch renames all MTD functions by adding a "_" prefix: mtd->erase -> mtd->_erase mtd->read_oob -> mtd->_read_oob ... The reason is that we are re-working the MTD API and from now on it is an error to use MTD function pointers directly - we have a corresponding API call for every pointer. By adding a leading "_" we achieve the following: 1. Make sure we convert every direct pointer users 2. A leading "_" suggests that this interface is internal and it becomes less likely that people will use them directly 3. Make sure all the out-of-tree modules stop compiling and the owners spot the big API change and amend them. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27mtd: cfi: AMD/Fujitsu compatibles: add panic write supportIra W. Snyder1-0/+240
This allows the mtdoops driver to work on flash chips using the AMD/Fujitsu compatible command set. As the code comments note, the locks used throughout the normal code paths in the driver are ignored, so that the chance of writing out the kernel's last messages are maximized. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-09-11mtd: cleanup style on pr_debug messagesBrian Norris1-6/+4
Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
2011-09-11mtd: replace DEBUG() with pr_debug()Brian Norris1-15/+12
Start moving away from the MTD_DEBUG_LEVEL messages. The dynamic debugging feature is a generic kernel feature that provides more flexibility. (See Documentation/dynamic-debug-howto.txt) Also fix some punctuation, indentation, and capitalization that went along with the affected lines. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
2011-05-25mtd: remove duplicate assignment of chip->stateTadashi Abe1-1/+0
This is a trivial patch which removes unnecessary assignment of chip->state in put_chip(). It's duplicated. Signed-off-by: Tadashi Abe <tabe@mvista.com> Acked-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-25mtd: fix hang-up in cfi erase and read contentionTadashi Abe1-3/+1
cfi erase command hangs up when erase and read contention occurs. If read runs at the same address as erase operation, read issues Erase-Suspend via get_chip() and the erase goes into sleep in wait queue. But in this case, read operation exits by time-out without waking it up. I think the other variants (0001, 0020 and lpddr) have the same problem too. Tested and verified the patch only on CFI-0002 flash, though. Signed-off-by: Tadashi Abe <tabe@mvista.com> Acked-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-25mtd: cmdset_0002: add CFI 1.5 support for S29GL-SGernot Hoyler1-2/+3
This patch adds CFI 1.5 support for the new Spansion S29GL-S device family. For details, see the data sheet on the Spansion web site: http://www.spansion.com/Support/Datasheets/S29GL_128S_01GS_00_02_e.pdf Signed-off-by: Gernot Hoyler <Gernot.Hoyler@spansion.com> Acked-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-03-31Fix common misspellingsLucas De Marchi1-5/+5
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-11mtd: cfi: add support for AMIC flashes (e.g. A29L160AT)Steffen Sledz1-0/+1
Signed-off-by: Steffen Sledz <sledz@dresearch.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-03-11mtd: cfi: fix writebufsize initializationAnatolij Gustschin1-1/+1
When initializing mtd->writebufsize, we must take into account possible flash chip interleaving. Wrong writebufsize initialization caused UBIFS recovery issues resulting in unmountable UBIFS file system on NOR flash partitions. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: cfi: add writebufsize initializationAnatolij Gustschin1-0/+4
Initialize mtd->writebufsize to the value obtained by CFI query command at probe time. Signed-off-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chipsGuillaume LECERF1-1/+3
These chips report CFI v3.3 [1], so patch them on the fly to the more correct v1.3. Discussed and tested by the OpenWRT people [2]. [1] http://www.samsung.com/global/system/business/semiconductor/product/2007/6/11/NORFlash/32Mbit/K8D3216UBC/ds_K8D3x16UxC_rev17.pdf [2] https://dev.openwrt.org/ticket/866 Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-06mtd: cfi_cmdset_0002: add support for Samsung K8D6x16UxM NOR chipsGuillaume LECERF1-3/+13
These chips report CFI v0.0 [1], so extend cfi_fixup_major_minor() to patch all Samsung chips from 0.0 to 1.0. Discussed and tested by the OpenWRT people [2]. [1] http://www.samsung.com/global/system/business/semiconductor/product/2007/6/11/NORFlash/64Mbit/K8D6316UTM/ds_K8D6x16UxM_rev16.pdf [2] https://dev.openwrt.org/ticket/7348 Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-12-03mtd: cfi_fixup: remove unused 'param' parameterGuillaume LECERF1-47/+47
The 'param' parameter has never been used since its introduction, so simply remove it. Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-30Merge branch 'master' of ↵David Woodhouse1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git Conflicts: drivers/mtd/mtd_blkdevs.c Merge Grant's device-tree bits so that we can apply the subsequent fixes. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-26mtd: cfi_cmdset_0002: make sector erase command variableGuillaume LECERF1-4/+6
Some old SST chips use 0x50 as sector erase command, instead of 0x30. Make this value variable to handle such chips. Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-26mtd: cfi_cmdset_0002: add CFI detection for SST 38VF640x chipsGuillaume LECERF1-0/+26
Add support for SST38VF640x chips in CFI mode. Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: yidong zhang <zhangyd6@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-25mtd: cfi_cmdset_0002: code cleanupsWolfram Sang1-39/+8
- remove disabled code (hasn't been touched since the beginning of git and should be reimplemented if really needed) - convert remaining c++-comments to plain c-style Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-10-18Update broken web addresses in the kernel.Justin P. Mattock1-2/+2
The patch below updates broken web addresses in the kernel Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Finn Thain <fthain@telegraphics.com.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Matt Turner <mattst88@gmail.com> Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Acked-by: Ben Pfaff <blp@cs.stanford.edu> Acked-by: Hans J. Koch <hjk@linutronix.de> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-08-08mtd: Remove obsolete <mtd/compatmac.h> includeDavid Woodhouse1-1/+0
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-06mtd: cfi_cmdset_0002: consider version 1.4 as a valid primary extension versionGuillaume LECERF1-3/+4
The Spansion S29WS-P device family uses CFI version 1.4 [1]. Consider it as a valid version. [1] http://www.spansion.com/Support/Datasheets/s29ws-p_00_a12_e.pdf Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-04mtd: cfi_cmdset_0002: fix the check for valid primary extension versionsGuillaume LECERF1-3/+12
Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3 [1][2]. Fix the check in cfi_cmdset_0002 accordingly. [1] http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_r20.pdf, page 19 [2] http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_100_20011201.pdf Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-20mtd: cfi_cmdset_0002: use AMD standard command-set with Winbond flash chipsGuillaume LECERF1-0/+3
Tested with W19L320SBT9C [1]. [1] http://www.datasheetarchive.com/pdf-datasheets/Datasheets-40/DSA-795343.pdf [dwmw2: Fix MODULE_ALIAS and linkage] Signed-off-by: Obinou <obconseil@gmail.com> Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-20mtd: cfi_cmdset_0002: Fix MODULE_ALIAS and linkage for new 0701 commandset IDDavid Woodhouse1-0/+3
Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-14mtd: cfi_cmdset_0002: Fix argument order in bootloc warningDavid Woodhouse1-1/+1
Doh. Pointed out by Guillaume LECERF <glecerf@gmail.com> since I managed to miss it in my test builds. S'what I get for hacking at 2am, I suppose. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-14mtd: cfi_cmdset_0002: add CFI detection for SST 39VF{32, 64}xxB chipsGuillaume LECERF1-0/+15
This patch adds support for detecting SST 39VF32xxB and 39VF64xxB chips in CFI mode. Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-14mtd: cfi_cmdset_0002: add CFI detection for SST 39VF{16, 32}xx chipsGuillaume LECERF1-0/+35
SST 39VF{16,32}xx chips use the 0x0701 command set, fully compatible with the AMD one. This patch adds support for detecting them in CFI mode. Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-14mtd: cfi_cmdset_0002: Tone down warning messages about TopBottom CFI fieldDavid Woodhouse1-4/+5
Accept values of 2-5 for TopBottom, where the newly-added 4 and 5 values mean a uniform layout. It does indicate WP layout but we don't handle that. Also don't say "broken" when swapping erase regions in a top-boot chip. That got retrospectively documented in the spec. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-14mtd: cfi_cmdset_0002: do not fail on no extended query table as they are ↵Guillaume LECERF1-44/+45
both optional After looking at AMD's CFI specification [1], both of the extended query tables are optional. Thus, it looks like relying that at least one of those tables exist is a bug in cfi_cmdset_0002. This patch inverts the logic and checks for unlock function pointers before exiting on error. This approach leaves place to add a call to a fixup function to try to handle chips compatible with the early AMD specification from 1995 [2]. [1] http://www.amd.com/us-en/assets/content_type/DownloadableAssets/cfi_r20.pdf [2] http://noel.feld.cvut.cz/hw/amd/20158a.pdf Signed-off-by: Guillaume LECERF <glecerf@gmail.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-05-10mtd: cfi_cmdset_0002: Add reboot notifier for AMD flashesKevin Cernekee1-0/+56
Ensure that the flash device is in a quiescent state before rebooting. The implementation is closely modeled after the cfi_cmdset_0001 reboot notifier, commit 963a6fb0a0d336d0513083b7e4b5c3ff9d6d2061 . Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 00:42:25 +0000