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2019-09-15mtd: parsers: Move CMDLINE parserLinus Walleij
This moves the CMDLINE partition parser down into the parser subdirectory. No functional change. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-09-15mtd: parsers: Move OF parserLinus Walleij
This moves the OF/device tree partition parser down into the parser subdirectory. No functional change. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-09-15mtd: parsers: Move BCM63xx parserLinus Walleij
This moves the BCM63xx partition parser down into the parser subdirectory. No functional change. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-09-15mtd: parsers: Move BCM47xx parserLinus Walleij
This moves the BCM47xx partition parser down into the parser subdirectory. No functional change. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-09-15mtd: parsers: Move TI AR7 parserLinus Walleij
This moves the TI AR7 partition parser down into the parser subdirectory. No functional change. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-07-13Merge tag 'mtd/for-5.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux Pull MTD updates from Miquel Raynal: "This contains the following changes for MTD: MTD core changes: - New Hyperbus framework - New _is_locked (concat) implementation - Various cleanups NAND core changes: - use longest matching pattern in ->exec_op() default parser - export NAND operation tracer - add flag to indicate panic_write in MTD - use kzalloc() instead of kmalloc() and memset() Raw NAND controller drivers changes: - brcmnand: - fix BCH ECC layout for large page NAND parts - fallback to detected ecc-strength, ecc-step-size - when oops in progress use pio and interrupt polling - code refactor code to introduce helper functions - add support for v7.3 controller - FSMC: - use nand_op_trace for operation tracing - GPMI: - move all driver code into single file - various cleanups (including dmaengine changes) - use runtime PM to manage clocks - implement exec_op - MTK: - correct low level time calculation of r/w cycle - improve data sampling timing for read cycle - add validity check for CE# pin setting - fix wrongly assigned OOB buffer pointer issue - re-license MTK NAND driver as Dual MIT/GPL - STM32: - manage the get_irq error case - increase DMA completion timeouts Raw NAND chips drivers changes: - Macronix: add read-retry support Onenand driver changes: - add support for 8Gb datasize chips - avoid fall-through warnings SPI-NAND changes: - define macros for page-read ops with three-byte addresses - add support for two-byte device IDs and then for GigaDevice GD5F1GQ4UFxxG - add initial support for Paragon PN26G0xA - handle the case where the last page read has bitflips SPI-NOR core changes: - add support for the mt25ql02g and w25q16jv flashes - print error in case of jedec read id fails - is25lp256: add post BFPT fix to correct the addr_width SPI NOR controller drivers changes: - intel-spi: Add support for Intel Elkhart Lake SPI serial flash - smt32: remove the driver as the driver was replaced by spi-stm32-qspi.c - cadence-quadspi: add reset control" * tag 'mtd/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (60 commits) mtd: concat: implement _is_locked mtd operation mtd: concat: refactor concat_lock/concat_unlock mtd: abi: do not use C++ style comments in uapi header mtd: afs: remove unneeded NULL check mtd: rawnand: stm32_fmc2: increase DMA completion timeouts mtd: rawnand: Use kzalloc() instead of kmalloc() and memset() mtd: hyperbus: Add driver for TI's HyperBus memory controller mtd: spinand: read returns badly if the last page has bitflips mtd: spinand: Add initial support for Paragon PN26G0xA mtd: rawnand: mtk: Re-license MTK NAND driver as Dual MIT/GPL mtd: rawnand: gpmi: remove double assignment to block_size dt-bindings: mtd: brcmnand: Add brcmnand, brcmnand-v7.3 support mtd: rawnand: brcmnand: Add support for v7.3 controller mtd: rawnand: brcmnand: Refactored code to introduce helper functions mtd: rawnand: brcmnand: When oops in progress use pio and interrupt polling mtd: Add flag to indicate panic_write mtd: rawnand: Add Macronix NAND read retry support mtd: onenand: Avoid fall-through warnings mtd: spinand: Add support for GigaDevice GD5F1GQ4UFxxG mtd: spinand: Add support for two-byte device IDs ...
2019-07-07mtd: afs: remove unneeded NULL checkDing Xiang
NULL check before kfree is unneeded, so remove it. Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
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>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas Gleixner
Based on 1 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 as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner
Based on 1 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 as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102Thomas Gleixner
Based on 1 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 as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 50 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091649.499889647@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-06mtd: afs: add v2 partition parsingLinus Walleij
The AFS v2 partition type appear in later ARM reference designs such as RealView, Versatile Express and the 64bit Juno Development Platform. The image informations is padded with a 32bit word (4 bytes) on the 32bit platforms and a 64bit word (8 bytes) on the 64bit platforms. The boot monitor source code gives at hand that this is because the first entry in the struct mapped over the image information is a "next" pointer for a linked list, filled in by firmware after reading in the info block, and always zero in the flash. We adjust padding by checking what padding gives the right checksum. This was tested on: - Integrator/AP (v1 partitions) - RealView PB11MPCore (v2 32bit partitions) - Juno Development System (v2 64bit partitions) All systems display the images in flash very nicely as separate partitions, e.g on Juno: 4 afs partitions found on MTD device 8000000.flash Creating 4 MTD partitions on "8000000.flash": 0x000000040000-0x0000000c0000 : "fip" 0x000000ec0000-0x0000018c0000 : "Image" 0x000000f00000-0x000000f40000 : "juno" 0x000003ec0000-0x000003f00000 : "bl1" Cc: Ryan Harkin <ryan.harkin@linaro.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: afs: factor the IIS read into partition parserLinus Walleij
Factor the IIS (Image Information Structure) reading into the partition parser, giving us a single, clean partition parser function. Cc: Ryan Harkin <ryan.harkin@linaro.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: afs: factor footer parsing into the v1 part parsingLinus Walleij
This simplifies the code by factoring in the image footer parsing into the single function parsing the AFSv1 partitions. Cc: Ryan Harkin <ryan.harkin@linaro.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: factor out v1 partition parsingLinus Walleij
This breaks out the parsing of v1 partitions so we can later add a v2 partition parser. Cc: Ryan Harkin <ryan.harkin@linaro.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: afs: simplify partition detectionLinus Walleij
Instead of reading out the AFS footers twice, create a separate function to just check if there is a footer or not. Rids a few local variables and prepare us to join the actual parser into one function. Cc: Ryan Harkin <ryan.harkin@linaro.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: afs: simplify partition parsingLinus Walleij
This simplifies the AFS partition parsing to make the code more straight-forward and readable. Before this patch the code tried to calculate the memory required to hold the partition info by adding up the sizes of the strings of the names and adding that to a single memory allocation, indexing the name pointers in front of the struct mtd_partition allocations so all allocated data was in one chunk. This is overzealous. Instead use kstrdup and bail out, kfree():ing the memory used for MTD partitions and names alike on the errorpath. In the process rename the index variable from idx to i. Cc: Ryan Harkin <ryan.harkin@linaro.org> Acked-by: Liviu Dudau <liviu.dudau@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: partitions: Add OF support to AFS partitionsLinus Walleij
This adds device tree support for AFS partitioning. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: afs: Move AFS partition parser to parsers subdirLinus Walleij
This moves the AFS (ARM Firmware Suite) partition parser for NOR flash down into the parsers subdirectory. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: parser_imagetag: add of_match_table supportJonas Gorski
Allow matching the imagetag parser for fixed partitions defined in the device tree. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-06mtd: bcm63xxpart: move imagetag parsing to its own parserJonas Gorski
Move the bcm963xx Image Tag parsing into its own partition parser. This Allows reusing the parser with different full flash parsers. While moving it, rename it to bcm963* to better reflect it isn't chip, but reference implementation specific. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2018-11-12mtd: partitions: Add OF support to RedBoot partitionsLinus Walleij
This adds device tree support for RedBoot partitioning. We read out the FIS directory block information from the device tree and then parse the partition table from there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-11-12mtd: Move Redboot partition parserLinus Walleij
This moves the Redboot partition parser down to the parsers subdirectory. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-07-07mtd: parsers: trx: add of_match_table with the new DT bindingRafał Miłecki
This allows using TRX parser to find TRX partitions on flash device described in DT using a proper binding. It's useful for devices storing firmware on a separated flash and having rootfs partition in it. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-06-12treewide: kzalloc() -> kcalloc()Kees Cook
The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-01-06mtd: sharpslpart: make local function sharpsl_nand_cleanup_ftl() staticWei Yongjun
Fixes the following sparse warnings: drivers/mtd/parsers/sharpslpart.c:222:6: warning: symbol 'sharpsl_nand_cleanup_ftl' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Andrea Adami <andrea.adami@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18mtd: sharpslpart: fix overflow on block_adr calculationColin Ian King
Multiplying block_num and mtd->erasesize may potentially overflow as they are both unsigned ints and so the multiplication is evaluated in unsigned int arithmetic. Cast block_adr to off_t to ensure multiplication is off_t sized to avoid any potential overflow. Detected by CoverityScan, CID#1461264 ("Unintentional integer overflow") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Andrea Adami <andrea.adami@gmail.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-13mtd: sharpslpart: Add sharpslpart partition parserAndrea Adami
The Sharp SL Series (Zaurus) PXA handhelds have 16/64/128M of NAND flash and share the same layout of the first 7M partition, managed by Sharp FTL. GPL 2.4 sources: http://support.ezaurus.com/developer/source/source_dl.asp The purpose of this self-contained patch is to add a common parser and remove the hardcoded sizes in the board files (these devices are not yet converted to devicetree). Users will have benefits because the mtdparts= tag will not be necessary anymore and they will be free to repartition the little sized flash. The obsolete bootloader can not pass the partitioning info to modern kernels anymore so it has to be read from flash at known logical addresses. (see http://www.h5.dion.ne.jp/~rimemoon/zaurus/memo_006.htm ) In kernel, under arch/arm/mach-pxa we have already 8 machines: MACH_POODLE, MACH_CORGI, MACH_SHEPERD, MACH_HUSKY, MACH_AKITA, MACH_SPITZ, MACH_BORZOI, MACH_TOSA. Lost after the 2.4 vendor kernel are MACH_BOXER and MACH_TERRIER. Almost every model has different factory partitioning: add to this the units can be repartitioned by users with userspace tools (nandlogical) and installers for popular (back then) linux distributions. The Parameter Area in the first (boot) partition extends from 0x00040000 to 0x0007bfff (176k) and contains two copies of the partition table: ... 0x00060000: Partition Info1 16k 0x00064000: Partition Info2 16k 0x00668000: Model 16k ... The first 7M partition is managed by the Sharp FTL reserving 5% + 1 blocks for wear-leveling: some blocks are remapped and one layer of translation (logical to physical) is necessary. There isn't much documentation about this FTL in the 2.4 sources, just the MTD methods for reading and writing using logical addresses and the block management (wear-leveling, use counter). It seems this FTL was tailored with 16KiB eraesize in mind so to fit one param block exactly, to have two copies of the partition table on two blocks. Later pxa27x devices have same size but 128KiB erasesize and less blocks (56 vs. 448) but the same schema was adopted, even if the two tables are now in the same eraseblock. For the purpose of the MTD parser only the read part of the code was taken. The NAND drivers that can use this parser are sharpsl.c and tmio_nand.c. Signed-off-by: Andrea Adami <andrea.adami@gmail.com> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2017-06-23mtd: parsers: trx: fix pr_err format for printing offsetRafał Miłecki
This fixes following warning: include/linux/kern_levels.h:4:18: warning: format '%X' expects argument of type 'unsigned int', but argument 2 has type 'size_t {aka long unsigned int}' [-Wformat=] Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2017-06-22mtd: extract TRX parser out of bcm47xxpart into a separated moduleRafał Miłecki
This makes TRX parsing code reusable with other platforms and parsers. Please note this patch doesn't really change anything in the existing code, just moves it. There is still some place for improvement (e.g. working on non-hacky method of checking rootfs format) but it's not really a subject of this change. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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