Commit Graph

113 Commits

Author SHA1 Message Date
Hauke Mehrtens
4f8f0bfeef kernel: mtdsplit_h3c_vfs: Fix build
Fix a recently introduces compile problem.

Fixes: 2acf18bf4d ("kernel: mtdsplit_h3c_vfs: use -ENOENT instead of -ENODEV")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-11-21 21:35:32 +01:00
Christian Marangi
f9eaa1cf1f
kernel: mtdsplit_minor: use -ENOENT instead of -ENODEV
New linux version will check the return code of parser on subpartitions.
The only valid case for skipping a parser with an error is -ENOENT.

Change the relevant entry to -ENOENT.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-20 23:42:12 +01:00
Christian Marangi
91a9fb7460
Revert "kernel: mtdsplit_minor: return 0 if not fatal"
This reverts commit ade045084b.

Skipping parser for subpartition will be handled now with -ENOENT.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-20 23:42:12 +01:00
Christian Marangi
d21262edcf
kernel: mtdsplit_uimage: use -ENOENT instead of -ENODEV
New linux version will check the return code of parser on subpartitions.
The only valid case for skipping a parser with an error is -ENOENT.

Change the relevant entry to -ENOENT.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-20 23:42:11 +01:00
Christian Marangi
8e6c6928da
Revert "kernel: mtdsplit_uimage: return 0 if not fatal"
This reverts commit a51359aafd.

Skipping parser for subpartition will be handled now with -ENOENT.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-20 23:42:11 +01:00
Christian Marangi
2acf18bf4d
kernel: mtdsplit_h3c_vfs: use -ENOENT instead of -ENODEV
New linux version will check the return code of parser on subpartitions.
The only valid case for skipping a parser with an error is -ENOENT.

Change the relevant entry to -ENOENT.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-20 23:42:11 +01:00
Christian Marangi
728ca2bc39
Revert "kernel: mtdsplit_h3c_vfs: return 0 for non-fatal errors"
This reverts commit 6fa1775348.

Skipping parser for subpartition will be handled now with -ENOENT.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-20 23:42:11 +01:00
Christian Marangi
e9ae6b19f0
kernel: generic: mtdsplit_seil: use -ENOENT instead of -ENODEV
New linux version will check the return code of parser on subpartitions.
The only valid case for skipping a parser with an error is -ENOENT.

Change the relevant entry to -ENOENT.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-20 23:42:11 +01:00
Christian Marangi
730b3872fe
Revert "kernel: generic: mtdsplit_seil: return 0 instead of -ENODEV"
This reverts commit 5aab294726.

Skipping parser for subpartition will be handled now with -ENOENT.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-20 23:42:10 +01:00
Christian Marangi
e5ad92c588
kernel: mtdsplit: rework and make use of -ENOENT error
Rework each affected mtdsplit driver to make use of -ENOENT error
instead of -ENODEV to handle new kernel that checks error from parser on
subpartitions.

The only acceptable error is -ENOENT that skip the parser. This follow
pattern used upstream and also by an mtdsplit parser, mtdsplit_bcm_wfi,
and also by a workaround currently implemented for mtdsplit_mstc_boot.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-18 13:07:59 +01:00
Christian Marangi
1db7ed390d
Revert "kernel: mtdsplit_fit: always return 0 when partition can't be split"
This reverts commit 627a0e7da0.

A better solution has been accepted upstream that doesn't hide all
unexpected error.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-11-18 12:53:29 +01:00
Shiji Yang
627a0e7da0 kernel: mtdsplit_fit: always return 0 when partition can't be split
If parse_fn() callback returns any error code, the entire MTD partition
table will be destroyed. Returning "0" indicates that the partition
should not be split. This patch fixes the kernel warning when running
the initramfs image but there is no image in firmware partition:

```
[    1.554246] no rootfs found after FIT image in "firmware"
[    1.559686] Failed to parse subpartitions: -19
[    1.564120] Deleting MTD partitions on "spi0.0":
[    1.568743] Deleting bl2 MTD partition
[    1.572507] ------------[ cut here ]------------
[    1.577110] WARNING: CPU: 0 PID: 1 at del_gendisk+0x260/0x2c4
[    1.582855] Modules linked in:
[    1.585902] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.57 #0
[    1.592505] Hardware name: AiroPi AX3 (DT)
[    1.596589] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    1.603538] pc : del_gendisk+0x260/0x2c4
[    1.607452] lr : del_gendisk+0x1c/0x2c4
[    1.611280] sp : ffffffc080dab460
[    1.614583] x29: ffffffc080dab460 x28: ffffffc080d75140 x27: 0000000000000004
[    1.621711] x26: 0000000000000000 x25: 0000000000000000 x24: ffffffc080b3f3d0
[    1.628838] x23: ffffffc080cf3d78 x22: ffffffc080cf3da8 x21: ffffff80009b8780
[    1.635966] x20: ffffffc080cf3e10 x19: ffffff80009d7400 x18: ffffffc080c5ebd8
[    1.643093] x17: ffffffc080cf00f0 x16: 000000009d594d00 x15: 0000000000000088
[    1.650221] x14: 0000000000000088 x13: 00000000ffffffea x12: ffffffc080cb6b80
[    1.657348] x11: 0000000000000040 x10: ffffffc080cf3820 x9 : ffffffc080cf3818
[    1.664475] x8 : ffffff8000420dd8 x7 : 0000000000000000 x6 : 0000000000000000
[    1.671601] x5 : ffffff8000420db0 x4 : ffffff8000420dd8 x3 : 0000000000000000
[    1.678728] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000004
[    1.685855] Call trace:
[    1.688290]  del_gendisk+0x260/0x2c4
[    1.691858]  del_mtd_blktrans_dev+0x30/0x144
[    1.696120]  mtdblock_remove_dev+0xc/0x20
[    1.700119]  blktrans_notify_remove+0x88/0xc4
[    1.704464]  del_mtd_device+0x58/0xdc
[    1.708120]  __del_mtd_partitions+0x98/0xe0
[    1.712296]  del_mtd_partitions+0x50/0x70
[    1.716299]  add_mtd_partitions+0x94/0x1e0
[    1.720388]  parse_mtd_partitions+0x3d0/0x4d4
[    1.724736]  mtd_device_parse_register+0x170/0x36c
[    1.729518]  spi_nor_probe+0x250/0x2cc
[    1.733261]  spi_mem_probe+0x68/0xa0
[    1.736828]  spi_probe+0x80/0xe0
[    1.740051]  really_probe+0xb8/0x2a4
[    1.743617]  __driver_probe_device+0x74/0x118
[    1.747962]  driver_probe_device+0x3c/0xe0
[    1.752049]  __device_attach_driver+0xac/0xe8
[    1.756394]  bus_for_each_drv+0x6c/0xb0
[    1.760224]  __device_attach+0x98/0x178
[    1.764049]  device_initial_probe+0x10/0x18
[    1.768223]  bus_probe_device+0xa0/0xa4
[    1.772051]  device_add+0x540/0x724
[    1.775531]  __spi_add_device+0x13c/0x1f8
[    1.779532]  of_register_spi_device+0x44c/0x720
[    1.784051]  spi_register_controller+0x4cc/0x6c0
[    1.788658]  devm_spi_register_controller+0x48/0xa0
[    1.793525]  mtk_spi_probe+0x420/0x720
[    1.797266]  platform_probe+0x64/0xcc
[    1.800920]  really_probe+0xb8/0x2a4
[    1.804485]  __driver_probe_device+0x74/0x118
[    1.808831]  driver_probe_device+0x3c/0xe0
[    1.812916]  __driver_attach+0x88/0x154
[    1.816741]  bus_for_each_dev+0x60/0xa0
[    1.820569]  driver_attach+0x20/0x28
[    1.824138]  bus_add_driver+0xdc/0x208
[    1.827880]  driver_register+0x64/0x114
[    1.831705]  __platform_driver_register+0x20/0x30
[    1.836399]  mtk_spi_driver_init+0x18/0x20
[    1.840486]  do_one_initcall+0x4c/0x1f8
[    1.844313]  kernel_init_freeable+0x238/0x290
[    1.848661]  kernel_init+0x1c/0x120
[    1.852141]  ret_from_fork+0x10/0x20
[    1.855707] ---[ end trace 0000000000000000 ]---
[    1.860731] Deleting u-boot-env MTD partition
[    1.865431] Deleting factory MTD partition
[    1.869907] Deleting fip MTD partition
[    1.874003] Deleting firmware MTD partition
```

Ref:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/mtd/mtdpart.c?h=linux-6.12.y&id=5c2f7727d437cd42033d13ebc8b3d74b9fe65712

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/20706
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-11-09 17:23:18 +01:00
INAGAKI Hiroshi
5aab294726 kernel: generic: mtdsplit_seil: return 0 instead of -ENODEV
Return 0 if the current mtd is inactive or no valid header/rootfs found,
instead of -ENODEV.
Linux Kernel 6.7 and later versions handle all errors returned by mtd
parsers, including -ENODEV as error. So '0' needs to be returned if no
child partitions were not parsed.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/20697
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-11-08 21:36:29 +01:00
Daniel Golle
a3b2a2e15d generic: mtdsplit: fit: improve detecting external-data FIT
Currently the detection of external-data FIT images works by checking
if the FIT structure is more than 4 kiB. However, for boards with lots
of different DT-overlays and configurations the FIT structure can
exceed 4 kiB which results in the FIT splitter to fail detecting the
rootfs.
Increase the threshold for external-data FIT to 512 kiB as there aren't
any kernel images smaller than that, and FIT structure less than 512 kiB
will always be an external-data FIT.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2025-11-05 14:19:39 +00:00
Jan Hoffmann
6fa1775348 kernel: mtdsplit_h3c_vfs: return 0 for non-fatal errors
Since Linux 6.7, introduced with commit 5c2f7727d437 ("mtd: mtdpart:
check for subpartitions parsing result"), errors during subpartition
parsing cause all MTD partitions to be torn down.

Since the current mtdsplit driver for devices using H3C VFS returns
-EINVAL if it does not find a file system containing an OpenWrt image,
this makes initial installation of OpenWrt impossible.

Work around this by returning 0 when the file system contains unexpected
data. Also print a message in this case to show what is going on.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Link: https://github.com/openwrt/openwrt/pull/19475
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-07-27 18:24:50 +02:00
INAGAKI Hiroshi
ddf7d63e94 generic: add mstc-boot mtdsplit parser
Add new mtdsplit parser "mstc-boot" for the devices manufactured by MSTC
(Mitra Star Technology Corp.). This is necessary to handle dual-boot on
those devices.
This parser splits kernel+rootfs or only rootfs(or UBI) based on the
image in the firmware partition or pre-defined partitions in dts, and
"bootnum" value in the "persist" (or "working") partition.

Note: "bootnum" is used for switching active firmware partitions on the
      devices manufactured by MSTC and '1' or '2' are used on most
      devices. But some devices use '0' or '1'. (example: I-O DATA
      WN-DEAX1800GR)

Sequence:

1. obtain "bootnum" value
2. child nodes exsist (regardless of bootnum)
   -> fixed partitions
      (active parts  : without bootnum (ex.: "kernel", "rootfs")
       inactive parts: with bootnum (ex.: "kernel2", "rootfs2"))
3. current partition is active (dt bootnum == mtd bootnum)
   -> image-based partitions

Device Tree:

- common

  - mstc,bootnum  : "bootnum" value for the mtd partition (0/1/2)
  - mstc,persist  : phandle of "persist" partition containing "bootnum"
                    value

- fixed partitions

  - #address-cells: indicate cell count of address of child nodes (1)
  - #size-cells   : indicate cell count of size of child nodes (1)
  - (child nodes) : define the child partitions
    - reg         : define the offset and size
    - label-base  : define the base name of the partition
      - (example) : base:"kernel"->"kernel"(active)/"kernel2"(inactive)

  example:

  partition@3c0000 {
  	compatible = "mstc,boot";
  	reg = <0x3c0000 0x3240000>;
  	label = "firmware1";
  	mstc,bootnum = <1>;
  	mstc,persist = <&mtd_persist>;
  	#address-cells = <1>;
  	#size-cells = <1>;

  	partition@0 {
  		reg = <0x0 0x800000>;
  		label-base = "kernel";
  	};

  	partition@800000 {
  		reg = <0x800000 0x2a40000>;
  		label-base = "ubi";
 	};
  };

- image-based partitions

  (no additional properties)

  example:

  partition@5a0000 {
  	compatible = "mstc,boot";
  	label = "firmware1";
  	reg = <0x5a0000 0x3200000>;
  	mstc,bootnum = <1>;
  	mstc,persist = <&mtd_persist>;
  };

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18976
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-07-20 16:12:56 +02:00
Markus Stockhausen
a51359aafd kernel: mtdsplit_uimage: return 0 if not fatal
Introduced with Linux 6.7, in commit:
5c2f7727d437 ("mtd: mtdpart: check for subpartitions parsing result"),
when a parser returns an error, this will be passed up, and
consequently, all parent mtd partitions get torn down.

Adjust the mtdsplit_uimage driver to only return an error if there is a
critical problem in reading from the mtd device or allocating memory.
Otherwise return 0 to indicate that no partitions were found.
Also add logging to indicate what went wrong.

E.g. on Realtek devices that are booted for the first time through
initramfs with OpenWrt never installed before boot log will show

[    0.975518] Creating 7 MTD partitions on "spi0.0":
[    0.981062] 0x000000000000-0x0000000e0000 : "u-boot"
[    1.041320] 0x0000000e0000-0x0000000f0000 : "u-boot-env"
[    1.060683] 0x0000000f0000-0x000000100000 : "u-boot-env2"
[    1.080992] 0x000000100000-0x000000200000 : "jffs2-cfg"
[    1.100988] 0x000000200000-0x000000300000 : "jffs2-log"
[    1.120599] 0x000000300000-0x000000fe0000 : "firmware"
[    1.157426] mtdsplit_uimage: no rootfs after uImage in "firmware"
[    1.176456] mtdsplit_uimage: no rootfs after uImage in "firmware"
[    1.200262] 0x000000fe0000-0x000001000000 : "log"

Similar issues were fixed before with commit ade045084b
("kernel: mtdsplit_minor: return 0 if not fatal") and
c78765213e ("kernel: mtdsplit_uimage: return 0 if not fatal")

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/19163
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2025-06-19 20:51:18 +02:00
Markus Stockhausen
c78765213e kernel: mtdsplit_uimage: return 0 if not fatal
Introduced with Linux 6.7, in commit:
5c2f7727d437 ("mtd: mtdpart: check for subpartitions parsing result"),
when a parser returns an error, this will be passed up, and
consequently, all parent mtd partitions get torn down.

Adjust the mtdsplit_uimage driver to only return an error if there is a
critical problem in reading from the mtd device or allocating memory.
Otherwise return 0 to indicate that no partitions were found.
Also add logging to indicate what went wrong.

E.g. on Realtek devices that are booted for the first time through
initramfs with OpenWrt never installed before boot log will show

[    0.932985] Creating 8 MTD partitions on "spi0.0":
[    0.938412] 0x000000000000-0x000000080000 : "u-boot"
[    0.990151] 0x000000080000-0x0000000c0000 : "u-boot-env"
[    0.999907] 0x0000000c0000-0x000000100000 : "board-name"
[    1.019971] 0x000000100000-0x000000e80000 : "firmware"
[    1.051582] mtdsplit_uimage: no uImage found in "firmware"
[    1.069365] 0x000000e80000-0x000001000000 : "kernel2"
[    1.078959] 0x000001000000-0x000001040000 : "sysinfo"
[    1.099747] 0x000001040000-0x000001c40000 : "rootfs2"
[    1.119865] 0x000001c40000-0x000002000000 : "jffs2"

Similar issue was fixed before with commit ade045084b
("kernel: mtdsplit_minor: return 0 if not fatal")

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/19016
Signed-off-by: Robert Marko <robimarko@gmail.com>
2025-06-04 12:50:12 +02:00
Mieczyslaw Nalewaj
a238170e57 treewide: strip trailing whitespace
Strip trailing whitespace in all code:
find . -type f | grep "\.c$" | xargs sed -i 's/[ \t]\+$//'
find . -type f | grep "\.h$" | xargs sed -i 's/[ \t]\+$//'
find . -type f | grep "\.dts$" | xargs sed -i 's/[ \t]\+$//'
find . -type f | grep "\.dtsi$" | xargs sed -i 's/[ \t]\+$//'

Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Link: https://github.com/openwrt/openwrt/pull/18626
Signed-off-by: Robert Marko <robimarko@gmail.com>
2025-05-20 00:47:37 +02:00
Mieczyslaw Nalewaj
ef590451a3
generic: mtdsplit: include appropriate header for kernel 6.12
In kernel 6.12 asm/unaligned.h was moved to linux/unaligned.h[1]
The patch points to the appropriate header depending on the kernel version.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.12.y&id=5f60d5f6bbc12e782fac78110b0ee62698f3b576

Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Link: https://github.com/openwrt/openwrt/pull/16547
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-04-30 16:26:46 +02:00
John Thomson
36834ea340 kernel: mtdsplit_minor: accept bootimage filename
RouterBOOT v7 on NOR devices no longer accepts the YAFFS kernel ELF
method of booting. It will accept an NPK image named bootimage.
Adjust mtdsplit_minor to accept this second possible boot file name.
Use the conservative value of 127 for YAFFS max name length (used when
YAFFS compiled with unicode support) vs 255.

Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>
Acked-by: Thibaut VARENE <hacks@slashdirt.org>
Link: https://github.com/openwrt/openwrt/pull/16780
Signed-off-by: Robert Marko <robimarko@gmail.com>
2024-10-30 11:15:34 +01:00
John Thomson
ade045084b kernel: mtdsplit_minor: return 0 if not fatal
Introduced with Linux 6.7, in commit:
5c2f7727d437 ("mtd: mtdpart: check for subpartitions parsing result"),
when a parser returns an error, this will be passed up, and
consequently, all parent mtd partitions get torn down.

Adjust the MiNOR mtdsplit driver to only return an error if there is a
critical problem in reading from the mtd device or allocating memory.
Otherwise return 0 to indicate that no partitions were found.
Also add logging to indicate what went wrong.

This mtdsplit parser makes a very limited check of the first YAFFS
header. For example, this will not match expectations when initially booting
an initramfs image with OEM on MTD.

Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>
Acked-by: Thibaut VARENE <hacks@slashdirt.org>
Link: https://github.com/openwrt/openwrt/pull/16780
Signed-off-by: Robert Marko <robimarko@gmail.com>
2024-10-30 11:15:34 +01:00
Chuanhong Guo
7117ebab0b kernel: mtdsplit: fix fit rootfs_data split
fit size should be rounded up instead of rounding down first and adding
a block. Otherwise the calculated size is one block more than needed
when fit size is exactly multiples of one block size.

Fixes: 9a863f803e ("kernel: mtdsplit: add support for FIT image")
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Qingfang Deng <qingfang.deng@siflower.com.cn>
2024-07-07 20:58:56 +08:00
INAGAKI Hiroshi
c6e71b34b2 kernel: add seil-fw mtdsplit driver for IIJ SEIL devices
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>
2023-10-31 14:02:01 +01:00
Rafał Miłecki
1817e864a2 kernel: make CFE bootfs MTD parser available for ARCH_BCMBCA
It's a new Broadcom symbol introduced in v6.0.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2023-07-14 11:38:12 +02:00
Álvaro Fernández Rojas
8813edd8d9 kernel: mtd: bcm-wfi: add cferam name support
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>
2023-06-14 23:21:34 +02:00
Tony Butler
8bc72ea7be treewide: strip useless default n Kconfig lines
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>
2023-02-03 12:50:15 +01:00
Yoonji Park
49763d907b kernel: add support for mtdsplit-fit offset
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>
2022-09-12 01:43:49 +01:00
Jan Hoffmann
3b1261224a kernel: mtdsplit: add support for H3C VFS filesystem
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>
2022-07-28 14:08:56 +02:00
Felix Fietkau
62fd9f9709 kernel: mtdsplit: support UBI after FIT images
Change the partition name accordingly. Same behavior as mtdsplit_uimage

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Daniel Golle
ce14445b74
kernel: mtdsplit_fit: support FIT with external data
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>
2021-04-09 16:04:29 +01:00
Rafał Miłecki
6dd727ac24 kernel: create bootfs partition when parsing on BCM4908
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>
2021-03-24 18:22:37 +01:00
Felix Fietkau
7a6d074824 kernel: add support for enabling fit firmware partition parser via cmdline
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>
2021-02-28 00:46:11 +00:00
Álvaro Fernández Rojas
7405ff5d4b kernel: mtdsplit: add support for BCM63XX CFE firmware
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>
2021-02-22 18:09:03 +01:00
Bjørn Mork
402408b368 kernel: mtdsplit_uimage: replace "edimax, uimage" parser
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>
2021-01-22 21:03:11 +01:00
Bjørn Mork
3f36dffbde kernel: mtdsplit_uimage: add "openwrt, offset" and "openwrt, partition-magic"
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>
2021-01-22 21:03:11 +01:00
Bjørn Mork
ff7709d223 kernel: mtdsplit_uimage: replace "netgear, uimage" parser
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>
2021-01-22 21:03:11 +01:00
Bjørn Mork
de64d4b958 kernel: mtdsplit_uimage: add "openwrt, ih-type" device-tree property
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>
2021-01-22 21:03:11 +01:00
Bjørn Mork
647fdafcc5 kernel: mtdsplit_uimage: replace "allnet, uimage" parser
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>
2021-01-22 21:03:11 +01:00
Bjørn Mork
01a1e21863 kernel: mtdsplit_uimage: replace "openwrt, okli" parser
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>
2021-01-22 21:03:11 +01:00
Bjørn Mork
ed39f7ec1a kernel: mtdsplit_uimage: add "openwrt, ih-magic" device-tree property
Many devices use uimages with non-standard magic values. Let
device tree override the default magic.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
2021-01-22 21:03:11 +01:00
Bjørn Mork
5ab5bacda2 kernel: mtdsplit_uimage: replace "fonfxc" and "sge" parsers
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>
2021-01-22 21:03:11 +01:00
Bjørn Mork
76ea7a91cf kernel: mtdsplit_uimage: read extralen from device tree
An "openwrt,padding" property in device tree can replace two device
specific parsers.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
2021-01-22 21:03:11 +01:00
Rafał Miłecki
20b4f77bb6 kernel: add parser finding rootfs after CFE bootfs
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>
2021-01-22 20:14:39 +01:00
John Crispin
18a53d43d6 kernel: add GS110TPPV1 support to mtdsplit_uimage
The ID is used be a Realtek based switch made by Netgear.

Signed-off-by: John Crispin <john@phrozen.org>
2020-11-26 13:29:42 +01:00
Felix Fietkau
f307684ab2 kernel: rename mtdpart_get_master to mtd_get_master
Preparation for supporting newer kernels

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2020-11-13 13:16:51 +01:00
Birger Koblitz
7bb1bd469e kernel: add support for ALLNET devices in mtdsplit
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>
2020-09-14 07:54:30 +02:00
Sander Vanheule
3f7047db7a kernel: mtdsplit: support ELF loader splitting
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>
2020-09-09 20:41:50 +03:00
Mathieu Martin-Borret
96761ecc2f kernel: mtdsplit_uimage: add SGE parser
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>
2020-07-13 22:45:04 +02:00
Álvaro Fernández Rojas
6c7cbf1420 kernel: mtdsplit: bcm_wfi: always add img partitions
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>
2020-06-03 18:50:58 +02:00