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* [JFFS2] Use function to manipulate superblock dirty flagArtem B. Bityuckiy2005-05-23
| | | | | | | | Use the corresponding function to mark Superblock dirty instead of doing it directly. Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Fix typo in KconfigThomas Gleixner2005-05-23
| | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND s3c2410: Simplify command handlingBen Dooks2005-05-23
| | | | | | | | Updated with tglx's suggestion to simply the command invocation by simply changing the address of the IO write area Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] cfi_cmdset_0001: Fix state after syncNicolas Pitre2005-05-23
| | | | | | | oldstate has to be reset to FL_READY after sync completion. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] cfi_cmdset_0001: Fix the buggy status check. Thomas Gleixner2005-05-23
| | | | | | | The change makes the code endianess aware and replaces the bogus nested loop to or the status flags together. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Add the reverse operation of cfi_build_cmd()Thomas Gleixner2005-05-23
| | | | | | This is necessary to fix the broken status check in cfi_cmdset_0001 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] plat-ram: removed extraneous debugging codeBen Dooks2005-05-23
| | | | | | | | removed define of DEBUG removed extraneous debugging code Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND: Fixed unused loop variableBen Dooks2005-05-23
| | | | | Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Fixed signed 1bit bitfieldBen Dooks2005-05-23
| | | | | Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] phram: Allow short reads. Joern Engel2005-05-23
| | | | | | | | Jffs2 apparently needs this. Accept newline at the end of input. Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] block2mtd: Remove copyright. Fix offset calculationJoern Engel2005-05-23
| | | | | | | | - Remove Gareth from the Copyrights (at his own request) - Fix the "fscking embarrassment" Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Remove Elan-104NCDavid Vrabel2005-05-23
| | | | | | | Remove support for the Arcom Elan-104NC since it's no longer being maintained. Signed-off-by: David Vrabel <dvrabel@arcom.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Add symlink caching support.Artem B. Bityuckiy2005-05-23
| | | | | Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND: Use cond_resched instead of msleepThomas Gleixner2005-05-23
| | | | | | | Replace msleep by cond_resched. On machines with HZ=100 (e.g. ARM) msleep slows down the operation by factor 10 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Fix NOR specific scan BUG Artem B. Bityuckiy2005-05-23
| | | | | | | | | Fix fairly sad NOR-specific bug - during FS building ic->scan_dents isn't zero, but jffs2_mark_node_obsolete() migt be called it tries to finde the ic corresponding to ref - this requires ic->scan_dents = 0. Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Prevent ino cache removal for inodes in useDavid Woodhouse2005-05-23
| | | | | | | | Don't remove inocache for inodes which are in read_inode() or clear_inode() until they're done. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Replace all the Au1x mapping drivers with a simplified single driverPete Popov2005-05-23
| | | | | | | | This driver does not have as many options but it's easier to maintain. And, it turns out AMD never shipped boards with different flash densities. Signed-off-by: Pete Popov <ppopov@pacbell.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Use after free, found by the Coverity toolJoern Engel2005-05-23
| | | | | | Signed-off-by: Alexander Nyberg <alexn@dsv.su.se> Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND: Check command timeoutThomas Gleixner2005-05-23
| | | | | | | | | Check timeout while we wait for the command to finish. No worry about a false result. This prevents deadlocking when detecting an unknown number of chips and is useful for removable media too. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: Wait for the command to finish.Thomas Gleixner2005-05-23
| | | | | | | Do not use the ready function here, as it might hang for ever. The result will show, whether the chip is there or not Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Sparse fixesBen Dooks2005-05-23
| | | | | | | | | Fix sparse errors due to lack of address-space markers Updated header comments Small re-format of initialiser Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Fix unregister_mtd_user() public function documentation.Artem B. Bityuckiy2005-05-23
| | | | | Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Update BAST driver configurationBen Dooks2005-05-23
| | | | | | | | update the BAST driver config (which already supports the vr1000) to be selected only if the vr1000 has been configured Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Make OTP actually work.Nicolas Pitre2005-05-23
| | | | | | | The OTP code is rather broken without this. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Fix node lookupArtem B. Bityuckiy2005-05-23
| | | | | | | | Look the ref->next_phys field instead of ->next_in_ino to determine if the block has more then one node. Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND: Fix bad block table scan for small page devicesArtem B. Bityuckiy2005-05-23
| | | | | | | | Scan 1st and 2nd pages of SP devices for BB marker by default. Fix more then one page scanning in create_bbt.c. Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Quiet unused variable warningNicolas Pitre2005-05-23
| | | | | Signed-off-by: Nioclas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND: Early Manufacturer ID lookupKyungmin Park2005-05-23
| | | | | | | | Move manufacturer ID search to display correct ID in case of buswidth mismatch. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Add SST 39VF1601 (MPF+) IDBen Dooks2005-05-23
| | | | | Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Fixup probing logic for single 16bit devicesBen Dooks2005-05-23
| | | | | | | | | | | | | | | | | | | The change to the generic probe to look for the smallest width of chip first is causing some problems on boards with a single 16bit device. The problem seems to be the jedec_match() is truncating the device-id read from the table to match against the one read from the hardware, causing a match against the partial id of some chips with 16bit IDs (such as the SST39LF160) This fixes things for my own board, but something may need to be done if the same problem is exhibited for chips with an 8bit ID Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND: Read only OOB bytes during bad block scanArtem B. Bityuckiy2005-05-23
| | | | | | | | | | | | When scanning NAND for bad blocks, don't read the whole page, read only needed OOB bytes instead. Also check the return code of the nand_read_raw() function. Correctly free the this->bbt array in case of failure. Tested with Large page NAND. Fix debugging message. Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND: Allow operation without bad block tableArtem B. Bityuckiy2005-05-23
| | | | | | | | Small bugfix. Sometimes it may be handy not to have bbt. So, this->bbt might be NULL. Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] NAND: Skip bad block table scan on requestThomas Gleixner2005-05-23
| | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Use a single config option for write buffer supportAndrew Victor2005-05-23
| | | | | | | | | | | | | This patch replaces the current CONFIG_JFFS2_FS_NAND, CONFIG_JFFS2_FS_NOR_ECC and CONFIG_JFFS2_FS_DATAFLASH with a single configuration option - CONFIG_JFFS2_FS_WRITEBUFFER. The only functional change of this patch is that the slower div/mod calculations for SECTOR_ADDR(), PAGE_DIV() and PAGE_MOD() are now always used when CONFIG_JFFS2_FS_WRITEBUFFER is enabled. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Add support for JFFS2-on-Dataflash devices.Andrew Victor2005-05-23
| | | | | | | | | | | | | | | | | For Dataflash, can_mark_obsolete = false and the NAND write buffering code (wbuf.c) is used. Since the DataFlash chip will automatically erase pages when writing, the cleanmarkers are not needed - so cleanmarker_oob = false and cleanmarker_size = 0 DataFlash page-sizes are not a power of two (they're multiples of 528 bytes). The SECTOR_ADDR macro (added in the previous core patch) is replaced with a (slower) div/mod version if CONFIG_JFFS2_FS_DATAFLASH is selected. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Core changes required to support JFFS2-on-Dataflash devices.Andrew Victor2005-05-23
| | | | | | | | | | | | | | | | | DataFlash page-sizes are not a power of two (they're multiples of 528 bytes). There are a few places in JFFS2 code where sector_size is used as a bitmask. A new macro (SECTOR_ADDR) was defined to calculate these sector addresses. For non-DataFlash devices, the original (faster) bitmask operation is still used. In scan.c, the EMPTY_SCAN_SIZE was a constant of 1024. Since this could be larger than the sector size of the DataFlash, this is now basically set to MIN(sector_size, 1024). Addition of a jffs2_is_writebuffered() macro. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Unabuse file-f_mode for OTP purposeNicolas Pitre2005-05-23
| | | | | Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] User interface to Protection RegistersNicolas Pitre2005-05-23
| | | | | | | | | | | This is implemented using a ioctl to switch the MTD char device into one of the different OTP "modes", at which point read/write/seek can operate on the selected OTP area. Also some extra ioctls to query for size and lock protection segments or groups. Some example user space utilities are provided. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Support for protection register support on Intel FLASH chipsNicolas Pitre2005-05-23
| | | | | | | | | | This enables support for reading, writing and locking so called "Protection Registers" present on some flash chips. A subset of them are pre-programmed at the factory with a unique set of values. The rest is user-programmable. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Prevent deadlock during write buffer recoveryEstelle Hammache2005-05-23
| | | | | | | | Prevent deadlock when checking erased block for space allocation during wbuf recovery. Signed-off-by: Estelle Hammache <estelle.hammache@st.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Add OTP basiscNicolas Pitre2005-05-23
| | | | | | | add structure definition for OTP region info Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] amd_flash: Fix chip ID clashJonas Holmberg2005-05-23
| | | | | | | | * Removed table entry for AM29BDS643D, since device ID clashes with AM29DL640G and both chips support CFI. Signed-off-by: Jonas Holmberg <jonas.holmberg@axis.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Remove NAND dependencies for NOR FLASHDavid Woodhouse2005-05-23
| | | | | | | make NAND code work on NOR flash again Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip: big endian fix for NFTL devicesThomas Gleixner2005-05-23
| | | | | | Make NFTL devices work on big endian machines. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip code cleanupThomas Gleixner2005-05-23
| | | | | | Remove commented ugliness Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] DiskOnChip use CONFIG_ options instead of random symbolsThomas Gleixner2005-05-23
| | | | | | Using the CONFIG_ options from KConfig seems to work better :8 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Code cleanup Estelle Hammache2005-05-23
| | | | | | | Code beautification and block filing correction for optimization. Signed-off-by: Estelle Hammache <estelle.hammache@st.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [MTD] Fix MTD device probingRussell King2005-05-23
| | | | | | | | | | | Try larger numbers of chips before smaller numbers of chips across the bus width. This means we'll avoid misdetecting a 2 x16 array as 1 x32 if the high 16-bits happen to read as zeros in the QRY area. Signed-off-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Fix refile of blocks due to write failure. Estelle Hammache2005-05-23
| | | | | | | | | avoid segfault when nextblock was refiled because of a write failure - avoid filing blocks on the clean list when they have wasted space Signed-off-by: Estelle Hammache <estelle.hammache@st.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [JFFS2] Fix block refilingEstelle Hammache2005-05-23
| | | | | | | | | - block refiling when writing directly to flash a buffer which is bigger than wbuf - retry cases for flushing wbuf Signed-off-by: Estelle Hammache <estelle.hammache@st.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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