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LuminaSensum / barebox

History for barebox / drivers / mtd

2012-01-02	28f0de6 Browse files » nand_omap_bch_decoder: Fix up error detection ... Bit errors in the ECC itself are not beeing taken into account. In this cases the number of detected errors != number of corrected errors and chien search returns an error. This patch adds detection of bit errors in the ECC. Signed-off-by: Steve Schefter <steve@scheftech.com> Signed-off-by: Teresa Gámez <t.gamez@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Steve Schefter authored on 9 Dec 2011 Sascha Hauer committed on 2 Jan 2012
2011-12-19	790266c Browse files » mtd nand: fix oob compile time option ... The NAND_READ_OOB Kconfig option is used to a) creating a cdev for reading OOB data b) compiling in mtd->read_oob support The former was intended and that's also what the Kconfig help says. The latter though was implicit and wrong. mtd->read_oob is also used by the bbt code which resulted in a NULL pointer deref when compiled with BBT but without NAND_READ_OOB. To fix this, split the option into two. The now invisible option NAND_OOB_DEVICE is only responsible for b) and gets selected when necessary. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 19 Dec 2011
2011-11-29	e88417b Browse files » nand: base: Improve error reporting if reading NAND-ID fails ... - use KERN_ERR for messages when NAND-ID detection fails - report the IDs also if not found - print the errno if nand_scan failed Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Wolfram Sang authored on 28 Nov 2011 Sascha Hauer committed on 29 Nov 2011
2011-11-08	03f18f3 Browse files » mtd nand omap: use NAND_OWN_BUFFERS option ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	624a44a Browse files » mtd nand omap: add read function for the OMAP4 romcode ecc mode ... The OMAP4 romcode expects some unusual ecc layout which we could write but not read. This patch adds a function which uses the manual mode to read a page written with this ecc layout. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	ecbc8a3 Browse files » mtd nand omap: factor out an internal __omap_calculate_ecc function ... We can't use the ECC_RESULTx_0 register set for manual mode which we'll need in the next patch. So factor out an internal function which makes the register set to use configurable. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	01bedb6 Browse files » mtd nand omap: make debugging output more useful ... - add missing '\n' at line ends - fix wrong argument type warnings - remove too noisy debug in omap_hwcontrol - add function names to debug printfs - add 0x prefixes to hex values Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	5b959a3 Browse files » mtd nand omap: use register defines for ecc registers ... We need this register bits later in another function, so use register bit defines now. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	02fa86e Browse files » mtd nand omap: fail on bch decode failure ... The driver used to print an error when bch decoing failed, but did not actually throw an error. Fix this. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	4cb1b12 Browse files » mtd nand omap: call ecc calculate function outside omap_correct_bch ... Move omap_calculate_ecc outside omap_correct_bch. When implementing the romcode bch read page we have to call omap_calculate_ecc with different arguments than in the standard case. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	af01926 Browse files » mtd nand omap: factor out hamming correct function ... To be consistent also factor out the hamming correct function and also safe an indention level. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	1b79fee Browse files » mtd nand omap: factor out bch correct function ... We need the bch correct algorithm in the next patches, so factor out a seperate function for this and also safe an indention level. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
	4a0a5df Browse files » mtd nand omap: use blocknum calculation to where it's used ... Just some refactoring to make the next patches better readable. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 8 Nov 2011
2011-10-18	4c6ac74 Browse files » nand: export some useful information about flashes to device variables ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 18 Oct 2011
2011-10-13	c3a1bd4 Browse files » mtd nand i.MX: depend on ARCH_IMX instead of individual SoCs ... This hardware is present on nearly all i.MX SoCs so do not extend this list even further. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 13 Oct 2011
2011-10-13	64c1007 Browse files » mtd nand i.MX: Add i.MX53 support ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 13 Oct 2011
2011-09-22	3ee7877 Browse files » introduce io.h ... To allow for some generic io accessors introduce io.h and use this instead of asm/io.h throughout the tree. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 22 Sep 2011
2011-09-21	0972e83 Browse files » i.MX NAND: pass second base address as resource ... The nand controller on i.MX51/53 uses two base addresses. Instead of hardcode the second address use the new shiny resources two specify it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 21 Sep 2011
2011-09-20	afdfa91 Browse files » at91: nand switch ecc base to resource ... Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Jean-Christophe PLAGNIOL-VILLARD authored on 19 Sep 2011 Sascha Hauer committed on 20 Sep 2011
2011-07-23	d4d8705 Browse files » nand: convert to struct resource ... Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Jean-Christophe PLAGNIOL-VILLARD committed on 23 Jul 2011
2011-07-20	9157cbc Browse files » nomadik/nand: switch to dev_request_mem_region ... Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Jean-Christophe PLAGNIOL-VILLARD authored on 19 Jul 2011 Sascha Hauer committed on 20 Jul 2011
2011-07-20	358ab3e Browse files » atmel/drivers: switch to dev_request_mem_region ... Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Jean-Christophe PLAGNIOL-VILLARD authored on 19 Jul 2011 Sascha Hauer committed on 20 Jul 2011
2011-07-18	8c53235 Browse files » nand i.MX: convert to struct resource ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer authored on 18 Jul 2011 Jean-Christophe PLAGNIOL-VILLARD committed on 18 Jul 2011
2011-07-17	7ca122a Browse files » nomadik_nand: use "struct resource" instead of platform_data ... drop data_va, cmd_va and addr_va in favor of resources Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Jean-Christophe PLAGNIOL-VILLARD committed on 17 Jul 2011
2011-07-17	3230114 Browse files » atmel_nand: switch to "struct resource" ... Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Jean-Christophe PLAGNIOL-VILLARD committed on 17 Jul 2011
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
2011-04-12	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