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* kernel: add seil-fw mtdsplit driver for IIJ SEIL devicesINAGAKI Hiroshi2023-10-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This mtdsplit parser driver parses firmware partition on Internet Initiative Japan Inc. (IIJ) SEIL series devices. Structure of header: 0x0 - 0x7 : Identifier (hex) 0x8 - 0x57: Copyright (ascii) 0x58 - 0x5b: Data CRC (hex) 0x5c - 0x5f: Image Format Version (hex) 0x60 - 0x63: Image Major Version (hex) 0x64 - 0x67: Image Minor Version (hex) 0x68 - 0x87: Image Release Version (ascii) 0x88 - 0x8b: Xor value for Data? (hex) 0x8c - 0x8f: Data Length (hex) Properties: - compatible : "iij,seil-firmware" - iij,seil-id : ID of SEIL firmware for the device (8 bytes) - examples: - SA-W2 : <0x5345494c 0x32303135> ("SEIL2015") - SEIL/X1 : <0x5345494c 0x2F582020> ("SEIL/X ") - iij,bootdev-name: boot device name assigned to the partition (optional) Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
* kernel: make CFE bootfs MTD parser available for ARCH_BCMBCARafał Miłecki2023-07-14
| | | | | | It's a new Broadcom symbol introduced in v6.0. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
* kernel: mtd: bcm-wfi: add cferam name supportÁlvaro Fernández Rojas2023-06-14
| | | | | | | | Some devices rename cferam bootloader using specific patterns and don't follow broadcom standards for renaming cferam files. This requires supporting different cferam file names. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
* kernel: mtk_bmt: refactor to avoid deep recursionMichał Kępień2023-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A Linksys E8450 (mt7622) device running current master has recently started crashing: [ 0.562900] mtk-ecc 1100e000.ecc: probed [ 0.570254] spi-nand spi2.0: Fidelix SPI NAND was found. [ 0.575576] spi-nand spi2.0: 128 MiB, block size: 128 KiB, page size: 2048, OOB size: 64 [ 0.583780] mtk-snand 1100d000.spi: ECC strength: 4 bits per 512 bytes [ 0.682930] Insufficient stack space to handle exception! [ 0.682939] ESR: 0x0000000096000047 -- DABT (current EL) [ 0.682946] FAR: 0xffffffc008c47fe0 [ 0.682948] Task stack: [0xffffffc008c48000..0xffffffc008c4c000] [ 0.682951] IRQ stack: [0xffffffc008008000..0xffffffc00800c000] [ 0.682954] Overflow stack: [0xffffff801feb00a0..0xffffff801feb10a0] [ 0.682959] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G S 5.15.107 #0 [ 0.682966] Hardware name: Linksys E8450 (DT) [ 0.682969] pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 0.682975] pc : dequeue_entity+0x0/0x250 [ 0.682988] lr : dequeue_task_fair+0x98/0x290 [ 0.682992] sp : ffffffc008c48030 [ 0.682994] x29: ffffffc008c48030 x28: 0000000000000001 x27: ffffff801feb6380 [ 0.683004] x26: 0000000000000001 x25: ffffff801feb6300 x24: ffffff8000068000 [ 0.683011] x23: 0000000000000001 x22: 0000000000000009 x21: 0000000000000000 [ 0.683017] x20: ffffff801feb6380 x19: ffffff8000068080 x18: 0000000017a740a6 [ 0.683024] x17: ffffffc008bae748 x16: ffffffc008bae6d8 x15: ffffffffffffffff [ 0.683031] x14: ffffffffffffffff x13: 0000000000000000 x12: 0000000f00000101 [ 0.683038] x11: 0000000000000449 x10: 0000000000000127 x9 : 0000000000000000 [ 0.683044] x8 : 0000000000000125 x7 : 0000000000116da1 x6 : 0000000000116da1 [ 0.683051] x5 : 00000000001165a1 x4 : ffffff801feb6e00 x3 : 0000000000000000 [ 0.683058] x2 : 0000000000000009 x1 : ffffff8000068080 x0 : ffffff801feb6380 [ 0.683066] Kernel panic - not syncing: kernel stack overflow [ 0.683069] SMP: stopping secondary CPUs [ 1.648361] SMP: failed to stop secondary CPUs 0-1 [ 1.648366] Kernel Offset: disabled [ 1.648368] CPU features: 0x00003000,00000802 [ 1.648372] Memory Limit: none Several factors contributed to this issue: 1. The mtk_bmt driver recursively calls its scan_bmt() helper function during device initialization, while looking for a valid block mapping table (BMT). 2. Commit fa4dc86e98 ("kernel: backport MEMREAD ioctl"): - increased the size of some stack-allocated structures (like struct mtd_oob_ops, used in bbt_nand_read(), which is indirectly called from scan_bmt()), - increased the stack size for some functions (for example, spinand_mtd_read(), which is indirectly called from scan_bmt(), now uses an extra stack-allocated struct mtd_ecc_stats). 3. OpenWrt currently compiles the kernel with the -fno-optimize-sibling-calls flag, which prevents tail-call optimization. Collectively, all of these factors caused stack usage in the mtk_bmt driver to grow excessively large, triggering stack overflows. Recursion is not really necessary in scan_bmt() as it simply iterates over flash memory blocks in reverse order, looking for a valid BMT. Refactor the logic contained in the scan_bmt() and read_bmt() functions in target/linux/generic/files/drivers/mtd/nand/mtk_bmt_v2.c so that deep recursion is prevented (and therefore also any potential stack overflows it may cause). Link: https://lists.openwrt.org/pipermail/openwrt-devel/2023-April/040872.html Signed-off-by: Michał Kępień <openwrt@kempniu.pl>
* treewide: strip useless `default n` Kconfig linesTony Butler2023-02-03
| | | | | | | | | | Kconfig docs say: > The default value deliberately defaults to 'n' in order to avoid > bloating the build. Apply this rule everywhere, to avoid more cloning of bad examples Signed-off-by: Tony Butler <spudz76@gmail.com>
* kernel: mtk-bmt: fix usage of _oob_readChuanhong Guo2023-01-21
| | | | | | | | _oob_read returns number of bitflips on success while bbt_nand_read should return 0. Fixes: 2d49e49b18 ("mediatek: bmt: use generic mtd api") Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
* kernel: add support for mtdsplit-fit offsetYoonji Park2022-09-12
| | | | | | | | | | Support devices that has vendor custom header before FIT image. Some devices has vendor custom header before FIT image. In this case mtd- split can not find FIT image and it results in rootfs mount failure. Please refer iptime,a6004mx device for further examples. Signed-off-by: Yoonji Park <koreapyj@dcmys.kr>
* kernel: mtdsplit: add support for H3C VFS filesystemJan Hoffmann2022-07-28
| | | | | | | | | | | | | | | | The bootloader on some H3C devices (for example HPE 1920 switches) only supports booting from flash by reading an image from an "VFS" filesystem which spans most of the available flash. The filesystem size is hard- coded in the bootloader. However, as long as no write operations are performed in the bootloader menu, it is sufficient if the start of the partition contains a valid filesystem with the kernel image. This mtdsplit parser reads the size and location of the kernel image and finds the location of the rootfs stored after it. It assumes that the filesystem image matches the layout of one generated by mkh3cvfs, with a filename of "openwrt-kernel.bin" for the kernel image. Signed-off-by: Jan Hoffmann <jan@3e8.eu>
* kernel: mtk_bmt: skip bitflip check if threshold isn't setChuanhong Guo2022-04-09
| | | | | | kernel spi-nand driver leaves this field empty and let mtd set it later. Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
* kernel: mtdsplit: support UBI after FIT imagesFelix Fietkau2022-03-25
| | | | | | Change the partition name accordingly. Same behavior as mtdsplit_uimage Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: add debugfs file to attempt repair of remapped sectorsFelix Fietkau2022-03-25
| | | | | | This can be used for sectors that are not physically damaged Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: add support for mediatek NMBM flash mapping supportFelix Fietkau2022-03-25
| | | | | | | This NAND flash remapping method is used on newer MediaTek devices with NAND flash. Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: on error, do not attempt to remap out-of-range blocksFelix Fietkau2022-03-25
| | | | | | Pass errors to caller instead Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: fix block copying on remap with bmt v2Felix Fietkau2022-03-25
| | | | | | Copy from the previously mapped block (in case it was remapped already) Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: allow get_mapping_block to return an errorFelix Fietkau2022-03-25
| | | | | | | Used by the mapping implementation to indicate that no backing block is available Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: split up mtk_bmt driver codeFelix Fietkau2022-03-25
| | | | | | Keep a separate source file per variant Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: add support for the bbt format used on mt7621Felix Fietkau2022-01-13
| | | | | | | | | This does not have spare blocks for remapping, and it is also not suitable for random write access. It only skips over bad blocks on linear writes of an image to a partition. As such, it is really only suitable for the kernel partition, or other partitions with mostly static data Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: add abstraction for supporting other formatsFelix Fietkau2022-01-13
| | | | | | Preparation for supporting remapping on MT7621 Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: remap blocks after reaching bitflip thresholdFelix Fietkau2022-01-13
| | | | | | This ensures that blocks are remapped before data becomes corrupt Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: pass number of bitflips on read to the callerFelix Fietkau2022-01-13
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: add support for limiting range of remappingFelix Fietkau2022-01-13
| | | | | | | | This can be used to support ubi on top of mtk_bmt without reflashing the boot loader. The boot loader + factory + kernel area is covered, while the rest is passed through as-is Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: extend debug interfaceFelix Fietkau2022-01-13
| | | | | | | Add support for showing remapped blocks and garbage collecting old remapped blocks triggered by using the mark_good/mark_bad files Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtk_bmt: fix remapping after read/write failureFelix Fietkau2022-01-13
| | | | | | Copy from the previous block in order to preserve existing data Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: move mediatek BMT support patch to generic patchesFelix Fietkau2022-01-13
| | | | | | | Preparation for supporting BMT on MT7621. Move source files to the files/ subdirectory in order to simplify maintenance Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtdsplit_fit: support FIT with external dataDaniel Golle2021-04-09
| | | | | | | | | | | | | | | | | | U-Boot has recently added support for having data blobs in uImage.FIT images stored at offsets after the FDT structure rather than embedding the data into the FDT structure itself. This is useful as it allows parts of the image to be mapped by the FIT partition parser, and it allows the FIT structure itself to be parsed more easily as it usually fits into single page. mtdsplit_fit assumed that the total length of an image is identical to the length of the FDT structure. For uImage.FIT with external data this assumption no longer holds true. Add support for uImage.FIT with external data to mtdsplit_fit and in in that case only split-off rootfs_data -- selecting and mapping rootfs partition is left to the block partition parser just like on UBI and block/GPT based platforms. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* kernel: create bootfs partition when parsing on BCM4908Rafał Miłecki2021-03-24
| | | | | | | | It's helpful for accessing booting data (DTS, kernel, etc.). It has to be used carefully as CFE's JFFS2 support is quite dumb. It doesn't recognize deleted files and has problems handling 0 inode. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
* kernel: add support for enabling fit firmware partition parser via cmdlineFelix Fietkau2021-02-28
| | | | | | | | | This is useful for dual-boot setups where the loader sets variables depending on the flash boot partition. For example the Linksys E8450 sets mtdparts=master for the first partition and mtdparts=slave for the second one. Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: mtdsplit: add support for BCM63XX CFE firmwareÁlvaro Fernández Rojas2021-02-22
| | | | | | | | Broadcom CFE bootloader relies on a tag for identifying the current firmware, such as version, image start address, kernel address and size, rootfs size, board id, signatures, etc. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
* kernel: mtdsplit_uimage: replace "edimax, uimage" parserBjørn Mork2021-01-22
| | | | | | | | The "edimax,uimage"" parser can be replaced by the generic parser using device specific openwrt,partition-magic and openwrt,offset properties. Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: mtdsplit_uimage: add "openwrt, offset" and "openwrt, partition-magic"Bjørn Mork2021-01-22
| | | | | | | | Some devices prepend a standard U-Boot Image with a vendor specific header, having its own magic. Adding two new properties will support validation of such images, including the additional magic. Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: mtdsplit_uimage: replace "netgear, uimage" parserBjørn Mork2021-01-22
| | | | | | | | | | | | | | | | | | | The "netgear,uimage" parser can be replaced by the generic parser using device specific openwrt,ih-magic and openwrt,ih-type properties. Device tree properties for the following devices have not been set, as they have been dropped from OpenWrt with the removal of the ar71xx target: FW_MAGIC_WNR2000V1 0x32303031 FW_MAGIC_WNR2000V4 0x32303034 FW_MAGIC_WNR1000V2_VC 0x31303030 FW_MAGIC_WPN824N 0x31313030 Tested-by: Sander Vanheule <sander@svanheule.net> # WNDR3700v2 Tested-by: Stijn Segers <foss@volatilesystems.org> # WNDR3700v1 Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: mtdsplit_uimage: add "openwrt, ih-type" device-tree propertyBjørn Mork2021-01-22
| | | | | | | Some devices use uimage headers with a non-default ih_type. Add support for overriding this in device tree. Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: mtdsplit_uimage: replace "allnet, uimage" parserBjørn Mork2021-01-22
| | | | | | | Convert users to the generic "openwrt,uimage" using device specific "openwrt,ih-magic" properties, and remove "allnet,uimage". Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: mtdsplit_uimage: replace "openwrt, okli" parserBjørn Mork2021-01-22
| | | | | | | | | The only difference between the "openwrt,okli" and the generic parser is the magic. Set this in device tree for all affected devices and remove the "openwrt,okli" parser. Tested-by: Michael Pratt <mcpratt@protonmail.com> # EAP300 v2, ENS202EXT and ENH202 Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: mtdsplit_uimage: add "openwrt, ih-magic" device-tree propertyBjørn Mork2021-01-22
| | | | | | | Many devices use uimages with non-standard magic values. Let device tree override the default magic. Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: mtdsplit_uimage: replace "fonfxc" and "sge" parsersBjørn Mork2021-01-22
| | | | | | | | Convert users of the "fonfxc" and "sge" parsers to the generic "openwrt,uimage", using device specific "openwrt,padding" properties. Tested-by: Stijn Segers <foss@volatilesystems.org> [DIR-878 A1] Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: mtdsplit_uimage: read extralen from device treeBjørn Mork2021-01-22
| | | | | | | An "openwrt,padding" property in device tree can replace two device specific parsers. Signed-off-by: Bjørn Mork <bjorn@mork.no>
* kernel: add parser finding rootfs after CFE bootfsRafał Miłecki2021-01-22
| | | | | | | | | | | | | | It's required for BCM4908. It cannot use "bcm-wfi-fw" parser because that one requires *two* JFFS2 partitions which is untested / unsupported on the BCM4908 architecture. With a single JFFS2 partition "bcm-wfi-fw" parser will: 1. Fail to find "vmlinux.lz" as it doesn't follow "1-openwrt" file 2. Create partitions that don't precisely match bootfs layout The new parser is described in details in the MTD_SPLIT_CFE_BOOTFS symbol help message. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
* kernel: add GS110TPPV1 support to mtdsplit_uimageJohn Crispin2020-11-26
| | | | | | The ID is used be a Realtek based switch made by Netgear. Signed-off-by: John Crispin <john@phrozen.org>
* kernel: rename mtdpart_get_master to mtd_get_masterFelix Fietkau2020-11-13
| | | | | | Preparation for supporting newer kernels Signed-off-by: Felix Fietkau <nbd@nbd.name>
* kernel: add support for ALLNET devices in mtdsplitBirger Koblitz2020-09-14
| | | | | | | Add support for uimage headers from ALLNET and provide support for the SG8208M and SG8310PM devices' magic bytes. Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
* kernel: mtdsplit: support ELF loader splittingSander Vanheule2020-09-09
| | | | | | | | | | | | | | | | | | | | | | | | | To parse the ELF kernel loader, a small ELF parser is used that can handle both ELF32 or ELF64 class loaders. The splitter assumes that the kernel is always located before the rootfs, whether it is embedded in the loader or not. If the kernel is located after the rootfs on the firmware partition, then the rootfs splitter will include it in the dynamically created rootfs_data partition and the kernel will be corrupted. The kernel image is preferably embedded inside the ELF loader, so the end of the loader equals the end of the kernel partition. This is due to the way mtd_find_rootfs_from searches for the the rootfs: - if the kernel image is embedded in the loader, the appended rootfs may follow the loader immediately, within the same erase block. - if the kernel image is not embedded in the loader, but placed at some offset behind the loader (OKLI-style loader), the rootfs must be aligned to an erase-block after the loader and kernel image. In case section header table is empty, determine the elf loader size by finding the end of the last segment, as defined by the program header table. Signed-off-by: Sander Vanheule <sander@svanheule.net>
* kernel: mtdsplit_uimage: add SGE parserMathieu Martin-Borret2020-07-13
| | | | | | | Adding SGE parser for SGE (T&W) Shenzhen Gongjin Electronics to add 96 bytes padding the the firmware image Signed-off-by: Mathieu Martin-Borret <mathieu.mb@protonmail.com>
* kernel: mtdsplit: bcm_wfi: always add img partitionsÁlvaro Fernández Rojas2020-06-03
| | | | | | | | | This is useful when booting OpenWrt from ramdisks in order to have both images partitions defined. Furthermore, instead of always using img2 for the inactive image, let's use img1 or img2 accordingly. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
* kernel: mtdsplit: support Broadcom WFI bootflagsÁlvaro Fernández Rojas2020-06-02
| | | | | | | | When firmware is flashed, cferam.000 extension is renamed to the next number. When booting, CFE scans the NAND and picks the partition with the highest cferam extension and ignores the other one. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
* kernel: mtdsplit: improve JFFS2 scanÁlvaro Fernández Rojas2020-06-02
| | | | | | Allow retrieving full file name and length by parameters. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
* kernel: mtdsplit: bcm_wfi: refactor codeÁlvaro Fernández Rojas2020-06-02
| | | | | | Create new parse_bcm_wfi function with common code from current parsers. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
* kernel: mtdsplit: bcm_wfi: remove brcm,wfi-sercomm compatibilityÁlvaro Fernández Rojas2020-06-02
| | | | | | | The only Sercomm WFI user has been migrated to a dedicated firmware parser. Keep support for no cferam partition based on a boolean DT property. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
* kernel: mtdsplit: bcm_wfi: support Sercomm bootflagsÁlvaro Fernández Rojas2020-06-02
| | | | | | | | Sercomm uses 2 bootflag partitions and boots the firmware with the highest bootflag. Support splitting the firmware partition while keeping support for unsplitted layout. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
* kernel: mtdsplit: bcm_wfi: code refactoringÁlvaro Fernández Rojas2020-06-02
| | | | | | | | - Rename master to mtd. - Pass mtd size as an argument. - Rename of_match_table. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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