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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-5/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mtd: rawnand: Support bad block markers in first, second or last pageFrieder Schrempf2019-04-181-17/+12Star
| | | | | | | | | | | | | | | | | | | | | | | | | Currently supported bad block marker positions within the block are: * in first page only * in last page only * in first or second page Some ESMT NANDs are known to have been shipped by the manufacturer with bad block markers in the first or last page, instead of the first or second page. Also the datasheets for Cypress/Spansion/AMD NANDs claim that the first, second *and* last page needs to be checked. Therefore we make it possible to set NAND_BBM_FIRSTPAGE, NAND_BBM_SECONDPAGE and NAND_BBM_LASTPAGE independently in any combination. To simplify the code, the logic to evaluate the flags is moved to a a new function nand_bbm_get_next_page(). Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: nand: Make flags for bad block marker position more granularFrieder Schrempf2019-04-181-1/+2
| | | | | | | | | | | | | | | | | | | To be able to check and set bad block markers in the first and second page of a block independently of each other, we create separate flags for both cases. Previously NAND_BBM_SECONDPAGE meant, that both, the first and the second page were used. With this patch NAND_BBM_FIRSTPAGE stands for using the first page and NAND_BBM_SECONDPAGE for using the second page. This patch is only for preparation of subsequent changes and does not implement the logic to actually handle both flags separately. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Always store info about bad block markers in chip structFrieder Schrempf2019-04-181-2/+2
| | | | | | | | | | | | | | The information about where the manufacturer puts the bad block markers inside the bad block and in the OOB data is stored in different places. Let's move this information to nand_chip.options and nand_chip.badblockpos. As this chip-specific information is not directly related to the bad block table (BBT), we also rename the flags to NAND_BBM_*. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Get rid of chip->numchipsBoris Brezillon2019-04-081-8/+8
| | | | | | | | The same information is provided by nanddev_ntargets(). Signed-off-by: Boris Brezillon <bbrezillon@kernel.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
* mtd: rawnand: Get rid of chip->chipsizeBoris Brezillon2019-04-081-9/+16
| | | | | | | | | The target size can now be returned by nanddev_get_targetsize(). Get rid of the chip->chipsize field and use this helper instead. Signed-off-by: Boris Brezillon <bbrezillon@kernel.org> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Provide a helper to get chip->data_bufBoris Brezillon2019-04-081-1/+3
| | | | | | | | | | | | | We plan to move cache related fields to a pagecache struct in nand_chip but some drivers access ->pagebuf directly to invalidate the cache before they start using ->data_buf. Let's provide an helper that returns a pointer to ->data_buf after invalidating the cache. Signed-off-by: Boris Brezillon <bbrezillon@kernel.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
* mtd: rawnand: fix kernel-doc warningsRandy Dunlap2019-01-311-1/+1
| | | | | | | | | | | | | | | | | Fix kernel-doc warnings in drivers/mtd/nand/raw: ../drivers/mtd/nand/raw/nand_base.c:420: warning: Function parameter or member 'chip' not described in 'nand_fill_oob' ../drivers/mtd/nand/raw/nand_bbt.c:173: warning: Function parameter or member 'this' not described in 'read_bbt' ../drivers/mtd/nand/raw/nand_bbt.c:173: warning: Excess function parameter 'chip' description in 'read_bbt' Fixes: 0813621ba898a ("mtd: rawnand: Stop passing mtd_info objects to internal functions") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Boris Brezillon <boris.brezillon@bootlin.com> Cc: Miquel Raynal <miquel.raynal@bootlin.com> Cc: Richard Weinberger <richard@nod.at> Cc: linux-mtd@lists.infradead.org Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
* mtd: rawnand: Reorganize code to avoid forward declarationsBoris Brezillon2018-12-071-57/+55Star
| | | | | | | | | Avoid forward declaration of nand_get_device(), nand_do_write_oob() and nand_update_bbt() by moving functions around. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Stop passing mtd_info objects to internal functionsBoris Brezillon2018-12-071-90/+95
| | | | | | | | | After having reworked the rawnand API to avoid passing mtd_info objects around, let's do the same for internal functions. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Tested-by: Janusz Krzysztofik <jmkrzyszt@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Keep all internal stuff privateBoris Brezillon2018-10-031-1/+2
| | | | | | | | | | | | | | A lot of things defined in rawnand.h should not be exposed to NAND controller drivers and should only be shared by core files. Create the drivers/mtd/nand/raw/internals.h header to store such definitions, and move all private defs to this header. Also remove EXPORT_SYMBOLS() on functions that are not supposed to be exposed. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Deprecate ->block_{bad,markbad}() hooksBoris Brezillon2018-10-031-1/+1
| | | | | | | | | | | | | | | Those hooks have been overloaded by some drivers for bad reasons: either the driver was not fitting in the NAND framework and should have been an MTD driver (docg4), or it was not properly implementing the OOB read/write request or had a weird layout where BBM are trashed. In any case, we should discourage people from overloading those methods and encourage them to fix their driver instead. Move the ->block_{bad,markbad}() hooks to the nand_legacy struct to make it clear. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Pass a nand_chip object nand_erase_nand()Boris Brezillon2018-10-031-1/+1
| | | | | | | | | | | Let's make the raw NAND API consistent by patching all helpers and hooks to take a nand_chip object instead of an mtd_info one or remove the mtd_info object when both are passed. Let's tackle the nand_erase_nand() helper. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Pass a nand_chip object to all nand_xxx_bbt() helpersBoris Brezillon2018-10-031-9/+7Star
| | | | | | | | | | | Let's make the raw NAND API consistent by patching all helpers and hooks to take a nand_chip object instead of an mtd_info one or remove the mtd_info object when both are passed. Let's tackle the nand_xxx_bbt() helpers. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Pass a nand_chip object to chip->block_xxx() hooksBoris Brezillon2018-10-031-2/+1Star
| | | | | | | | | | | Let's make the raw NAND API consistent by patching all helpers and hooks to take a nand_chip object instead of an mtd_info one or remove the mtd_info object when both are passed. Let's tackle all chip->block_xxx() hooks at once. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* mtd: rawnand: Rename nand_default_bbt() into nand_create_bbt()Boris Brezillon2018-07-181-5/+5
| | | | | | | | | | | Rename nand_default_bbt() into nand_create_bbt() and pass it a nand_chip object to prepare removal of the chip->scan_bbt() hook. We add a temporary nand_default_bbt() wrapper which will be dropped after the removal of ->scan_bbt(). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
* Merge tag 'nand/for-4.17' of git://git.infradead.org/linux-mtd into mtd/nextBoris Brezillon2018-04-041-1/+0Star
| | | | | | | | | | | | | | | | | | | | | Core changes: * Prepare arrival of the SPI NAND subsystem by implementing a generic (interface-agnostic) layer to ease manipulation of NAND devices * Move onenand code base to the drivers/mtd/nand/ dir * Rework timing mode selection * Provide a generic way for NAND chip drivers to flag a specific GET/SET FEATURE operation as supported/unsupported * Stop embedding ONFI/JEDEC param page in nand_chip Driver changes: * Rework/cleanup of the mxc driver * Various cleanups in the vf610 driver * Migrate the fsmc and vf610 to ->exec_op() * Get rid of the pxa driver (replaced by marvell_nand) * Support ->setup_data_interface() in the GPMI driver * Fix probe error path in several drivers * Remove support for unused hw_syndrome mode in sunxi_nand * Various minor improvements
* mtd: nand: move raw NAND related code to the raw/ subdirBoris Brezillon2018-02-161-0/+1452
As part of the process of sharing more code between different NAND based devices, we need to move all raw NAND related code to the raw/ subdirectory. Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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