- 23 May, 2005 40 commits
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Nicolas Pitre authored
The OTP code is rather broken without this. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Artem B. Bityuckiy authored
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>
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Artem B. Bityuckiy authored
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>
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Nicolas Pitre authored
Signed-off-by: Nioclas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Kyungmin Park authored
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>
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Ben Dooks authored
Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Ben Dooks authored
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>
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Artem B. Bityuckiy authored
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>
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Artem B. Bityuckiy authored
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>
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Thomas Gleixner authored
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Andrew Victor authored
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>
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Andrew Victor authored
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>
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Andrew Victor authored
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>
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Nicolas Pitre authored
Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Nicolas Pitre authored
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>
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Nicolas Pitre authored
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>
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Estelle Hammache authored
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>
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Nicolas Pitre authored
add structure definition for OTP region info Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Jonas Holmberg authored
* 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>
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David Woodhouse authored
make NAND code work on NOR flash again Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Thomas Gleixner authored
Make NFTL devices work on big endian machines. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Thomas Gleixner authored
Remove commented ugliness Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Thomas Gleixner authored
Using the CONFIG_ options from KConfig seems to work better :8 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Estelle Hammache authored
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>
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Russell King authored
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>
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Estelle Hammache authored
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>
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Estelle Hammache authored
- 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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Estelle Hammache authored
Correction of retry case to avoid silent failure of rmdir when jffs2_wbuf_recover GCs the previous entry (+ corresponding dnode case). Signed-off-by: Estelle Hammache <estelle.hammache@st.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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David A. Marlin authored
Added routine to perform extra error status checks on erase and write failures to determine if errors are correctable. Added option to prevent JFFS2 from using virtual erase blocks. Performed minor cleanup on whitespace and comments. Signed-off-by: David A. Marlin <dmarlin@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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David A. Marlin authored
Add optional hardware specific callback routine to perform extra error status checks on erase and write failures for devices with hardware ECC. Signed-off-by: David A. Marlin <dmarlin@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Ben Dooks authored
Driver for generic RAM blocks which are exported by an platform_device from the device driver system. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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David A. Marlin authored
Replace some literals with defined symbols. Signed-off-by: David A. Marlin <dmarlin@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Richard Purdie authored
Correct Poodle default partition size Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Todd Poynor authored
Avoid "Eep. No valid nodes for ino #1" message for just-created filesystem. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Thomas Gleixner authored
Replace yield by msleep. M.Wilcox stared at it and frowned Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Ben Dooks authored
Ensure the whole device is added if there are no partitions found on the device, so that at least the flash can be read/written. Replace some of the constants with their SZ_xxx counterparts Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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David A. Marlin authored
Add routine to perform device recovery (deplete) procedure. Clean up some compiler warnings. Signed-off-by: David A. Marlin <dmarlin@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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David A. Marlin authored
Added workaround for Renesas AG-AND chips "disturb" issue for Bad Block Table. Added support for the device recovery command sequence for Renesas AG-AND chips. Signed-off-by: David A. Marlin <dmarlin@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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David A. Marlin authored
Added extended commands for AG-AND device and added option for BBT_AUTO_REFRESH. Signed-off-by: David A. Marlin <dmarlin@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Herbert Valerio Riedel authored
For the case that mtd partitions are enabled it would cause a 0-pointer dereferencing in mtdpart.c:mtd_erase_callback() Signed-off-by: Herbert Valerio Riedel <hvr@inso.tuwien.ac.at> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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