LuminaSensum/barebox

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LuminaSensum / barebox

History for barebox / drivers / mtd

2011-06-10	42207a9 Browse files » Improved gpmc_nand driver to show the current eccmode. ... Now a 'devinfo gpmc_nand0' shows the current used eccmode instead of <NULL>. The function omap_gpmc_eccmode is now called by dev_set_param. Signed-off-by: Juergen Kilb <J.Kilb@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Juergen Kilb authored on 9 Jun 2011 Sascha Hauer committed on 10 Jun 2011
2011-05-25	46e72ec Browse files » Always initialize oob_poi before writing OOB data ... The following patch came across the mtd mailing list today. I thinks its also valid for barebox (it handles a special corner case, but maybe it can hit us, too): In nand_do_write_ops() code it is possible for a caller to provide ops.oobbuf populated and ops.mode == MTD_OOB_AUTO, which currently means that the chip->oob_poi buffer isn't initialised to all 0xFF. The nand_fill_oob() method then carries out the task of copying the provided OOB data to oob_poi, but with MTD_OOB_AUTO it skips areas marked as unavailable by the layout struct, including the bad block marker bytes. An example of this causing issues is when the last OOB data read was from the start of a bad block where the markers are not 0xFF, and the caller wishes to write new OOB data at the beginning of another block. In this scenario the caller would provide OOB data, but nand_fill_oob() would skip the bad block marker bytes in oob_poi before copying the OOB data provided by the caller. This means that when the OOB data is written back to NAND, the block is inadvertently marked as bad without the caller knowing. This has been witnessed when using YAFFS2 where tags are stored in the OOB. This patch changes the code so that oob_poi is always initialised to 0xFF to make sure no left over data is inadvertently written back to OOB data. The comment above is for the linux kernel, but the same is valid for barebox and CPUs writing the OOB date controlled in software (like the Samsung S3C2440 does). Signed-off-by: Adam Thomson <adam.thomson@alcatel-lucent.com> Signed-off-by: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Juergen Beisert authored on 24 May 2011 Sascha Hauer committed on 25 May 2011
2011-04-20	c318b0f Browse files » ARM: omap4: fix dev_width for omap_enable_hwecc ... NAND_BUSWIDTH_16 should result in dev_width = 1 according to the kernel driver omap_enable_hwecc: dev_width = (chip->options & NAND_BUSWIDTH_16) ? 1 : 0; Signed-off-by: Jan Weitzel <j.weitzel@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Jan Weitzel authored on 19 Apr 2011 Sascha Hauer committed on 20 Apr 2011
2011-04-12	3ab2b35 Browse files » nand omap: handle erased pages correctly in hamming ecc mode ... do not throw ecc errors on erased pages. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
	4b95440 Browse files » nand omap: use xzalloc instead of calloc ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
	3bad67d Browse files » nand omap: use standard debug functions ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
	f880d7b Browse files » nand bb: add proper bb remove function ... The old way happily removed cdev entries which were no bb dev at all. Fix this by checking if the given device actually is a bb device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
	e7c0680 Browse files » nand bb: switch to cdev operations ... The cdev operations are available without the complete file API, so they are more suitable for internal usage. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
	027db60 Browse files » nand: move bb handling code to drivers/mtd/nand ... It's good to seperate the code which others can use from commands. This way other users do not depend on the command being compiled in. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
	5386d6d Browse files » nand: nand_block_markbad is only used with nand write support ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
	a7cbbaf Browse files » nand omap: turn debug messages into dev_dbg ... The information from the probe function is useful for developers only, so turn them into dev_dbg to safe binary space. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
	2053e35 Browse files » nand omap: fix hamming romcode ecc code ... This got broken in commit: 6943635 mtd nand omap: make ecc mode runtime configurable Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Apr 2011
2011-04-11	f800f73 Browse files » nand: make reading oob optional ... The nand oob functions occupy quite some binary space. If not needed, we can save this space by making this configurable. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Apr 2011
	09da8d4 Browse files » nand: remove unused nand_util file ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Apr 2011
	3efa8f7 Browse files » devfs: remove unused struct filep* argument from open/close ... the cdev layer is under the file layer, so it should not use struct filep*. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Apr 2011
	62604e6 Browse files » ubi: do not use filep ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Apr 2011
2011-04-06	8dfebf9 Browse files » Merge branch 'nand-pu' into next Sascha Hauer committed on 6 Apr 2011
2011-04-06	9ba8f95 Browse files » Merge branch 'omap-drivers' into next Sascha Hauer committed on 6 Apr 2011
2011-04-04	b672f87 Browse files » nand: make bbt support optional ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	a1e9c15 Browse files » nand: make vendor/type printout optional ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	8f5b0e4 Browse files » nand: Make different ecc modes optional ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	eb13333 Browse files » nand: Make write support optional ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	779ea89 Browse files » nand: factor out nand write support ... In order to make it optional later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	c8e395d Browse files » nand: factor out syndrome support to seperate file ... In order to make it optional later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	f6647d3 Browse files » nand: factor out software ecc support to seperate file ... in order to make it optional later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	535d444 Browse files » nand: Factor out hw ecc support to seperate file ... In order make hwecc support optional later. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	c27545d Browse files » nand: do not fall through in nand_scan_tail() ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	82aa50a Browse files » nand: remove unneeded nand_[get\|release]_device functions ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	2e6a944 Browse files » nand: remove unused suspend/resume functions ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011
	6e7eba2 Browse files » mtd nand omap: Add BCH ecc support ... This patch adds BCH ecc support to the omap nand driver. The BCH error correction allows for up to 8 bit error correction. It is also needed for booting from nand on omap4. This is based on code from Sukumar Ghorai <s-ghorai@ti.com>: [PATCH] omap3: nand: bch ecc support added Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Apr 2011