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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
This drops the obsolete version switches for non-supported kernels
from local drivers in generic target.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This driver provides an OF MTD parser to properly assign the RouterBoot
partitions on the flash. This parser builds from the "fixed-partitions"
one (see ofpart.c), but it can handle dynamic partitions as found on
routerboot devices.
The parent node must contain the following:
compatible = "mikrotik,routerboot-partitions";
#address-cells = <1>;
#size-cells = <1>;
Children routerbootpart DTS nodes are defined as follows:
For fixed partitions
node-name@unit-address {
reg = <prop-encoded-array>;
label = <string>;
read-only;
lock;
};
All properties but reg are optional.
For dynamic partitions:
node-name {
size = <prop-encoded-array>;
label = <string>;
read-only;
lock;
};
size property is mandatory unless the next partition is a fixed one or
a "well-known" one (matched from the strings defined below) in which case
it can be omitted or set to 0; other properties are optional.
By default dynamic partitions are appended after the preceding one, except
for "well-known" ones which are automatically located on flash.
Well-known partitions (matched via label or node-name):
- "hard_config"
- "soft_config"
- "dtb_config"
This parser requires the DTS to list partitions in ascending order as
expected on the MTD device.
This parser has been successfully tested on BE (ath79) and LE (ipq40xx
and ramips) hardware.
Tested-by: Baptiste Jonglez <git@bitsofnetworks.org>
Tested-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
Tested-by: Tobias Schramm <t.schramm@manjaro.org>
Tested-by: Christopher Hill <ch6574@gmail.com>
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
Between 4.19 and 5.4, mtd parsers have been moved to "parsers"
subdirectory. Based on this, the selection of myloader.o in OpenWrt
was also moved to that subdirectory, while the Kconfig and our local
myloader.c file remained in /drivers/mtd.
This resulted in linking errors like the following (on ath25@5.4):
make[8]: *** No rule to make target 'drivers/mtd/parsers/myloader.o', ...
needed by 'drivers/mtd/parsers/built-in.a'. Stop.
make[7]: *** [scripts/Makefile.build:500: drivers/mtd/parsers] Error 2
make[6]: *** [scripts/Makefile.build:500: drivers/mtd] Error 2
Since myloader.c is not too big, this patch moves it to the kernel patches,
allowing to adjust the path for kernel 5.4 and keeping Makefiles and
file paths better in sync.
Other patches have been refreshed accordingly.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This fixes off-by-one error introduced in commit dc76900021
("kernel: Correctly search for the FIT image in mtd partition.")
Function `mtd_read` starts reading at `offset` and
needs `hdr_len` number of bytes to be available. Suppose
the easiest case when `offset` is `0` and `hdr_len` equals
to `mtd->size` - the `for` loop will not be entered even
when enough bytes are available to be read.
Same happens for any non-zero `offset`, when `hdr_len` is
just enough bytes to be read until `mtd->size` is reached.
Imagine that for example `mtd->size=5`, `offset=4` and
`hdr_len=1`. Then `offset+hdr_len=5` and the check has to
be `offset+hdr_len <= mtd->size`, i.e. `5 <= 5`. The
check for `offset + hdr_len` value needs to be inclusive,
therefore use `<=`.
Fixes: dc76900021 ("kernel: Correctly search for the FIT image in mtd partition.")
Signed-off-by: Oldřich Jedlička <oldium.pro@gmail.com>
[adjusted commit ref, fixes tag]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
