kernel/linux.git/drivers/mtd/devices/Makefile, branch v6.6.131

mtd: remove lart flash driver

2022-11-07T16:14:14+00:00

The sa1100 lart platform was removed, so its flash driver is no longer useful. Signed-off-by: Arnd Bergmann Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20221021155000.4108406-7-arnd@kernel.org

mtd: devices: add support for microchip 48l640 EERAM

2021-06-11T18:43:12+00:00

The Microchip 48l640 is a 8KByte EERAM connected via SPI. Signed-off-by: Heiko Schocher Tested-by: Fabio Estevam Reported-by: kernel test robot Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20210607033909.1424605-3-hs@denx.de

mtd: spi-nor: Move m25p80 code in spi-nor.c

2019-08-12T07:54:12+00:00

The m25p80 driver is actually a generic wrapper around the spi-mem layer. Not only the driver name is misleading, but we'd expect such a common logic to be directly available in the core. Another reason for moving this code is that SPI NOR controller drivers should progressively be replaced by SPI controller drivers implementing the spi_mem_ops interface, and when the conversion is done, we should have a single spi-nor driver directly interfacing with the spi-mem layer. While moving the code we also fix a longstanding issue when non-DMA-able buffers are passed by the MTD layer. Signed-off-by: Boris Brezillon Signed-off-by: Vignesh Raghavendra Signed-off-by: Tudor Ambarus

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02T10:10:55+00:00

Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

mtd: mchp23k256: Add driver for this SPI SRAM device

2017-05-11T17:13:02+00:00

The Microchip 23k256 is a 32K Byte SRAM connected via SPI. Signed-off-by: Andrew Lunn Reviewed-by: Boris Brezillon Reviewed-by: Cyrille Pitchen [Brian: fixed copyright to be in this millenium] Signed-off-by: Brian Norris

mtd: powernv: Add powernv flash MTD abstraction driver

2015-06-11T03:23:30+00:00

Powerpc powernv platforms allow access to certain system flash devices through a firmwarwe interface. This change adds an mtd driver for these flash devices. Minor updates from Jeremy Kerr and Joel Stanley. Signed-off-by: Cyril Bur Signed-off-by: Joel Stanley Signed-off-by: Jeremy Kerr Reviewed-by: Neelesh Gupta Signed-off-by: Michael Ellerman

mtd: nand: Move ELM driver and rename as omap_elm

2014-09-22T18:39:26+00:00

The ELM driver is only used by the OMAP NAND driver, so let's move it to the nand/ directory. Additionally, let's rename it to a less confusing name, so the module is built with a meaningful name, instead of the previous 'elm.ko'. Acked-by: Roger Quadros Signed-off-by: Ezequiel Garcia Signed-off-by: Brian Norris

mtd: st_spi_fsm: Allocate resources and register with MTD framework

2014-03-20T11:17:14+00:00

This is a new driver. It's used to communicate with a special type of optimised Serial Flash Controller called the FSM. The FSM uses a subset of the SPI protocol to communicate with supported NOR-Flash devices. Acked-by Angus Clark Signed-off-by: Lee Jones Signed-off-by: Brian Norris

mtd: doc: remove support for DoC 2000/2001/2001+

2013-04-05T11:04:31+00:00

These drivers are deprecated for very long time, and we have a different driver for these called "diskonchip". Thus, kill the ancient cruft. Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse

mtd: devices: elm: Add support for ELM error correction

2013-02-04T07:26:29+00:00

The ELM hardware module can be used to speedup BCH 4/8/16 ECC scheme error correction. For now only 4 & 8 bit support is added Signed-off-by: Philip Avinash Signed-off-by: Artem Bityutskiy