Commit Graph

153 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
4d18c41a6c kernel: mtk_bmt: counteracting calloc-transposed-args compiler warning
For kernel 6.12 there is a warning causing an error:
drivers/mtd/nand/mtk_bmt_v2.c: In function 'mtk_bmt_get_mapping_mask':
drivers/mtd/nand/mtk_bmt_v2.c:307:31: error: 'kmalloc_array_noprof' sizes specified with 'sizeof' in the earlier argument and not in the later argument [-Werror=calloc-transposed-args]
  307 |         used = kcalloc(sizeof(unsigned long), BIT_WORD(bmtd.bmt_blk_idx) + 1, GFP_KERNEL);
      |                               ^~~~~~~~

Swapping the arguments solves the problem.

Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Link: https://github.com/openwrt/openwrt/pull/18701
Signed-off-by: Robert Marko <robimarko@gmail.com>
2025-05-13 22:07:11 +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
Mikhail Zhilkin
e585ae70d4 kernel: nmbm: add mediatek,bmt-mtd-overridden-oobsize property
This commit adds new "mediatek,bmt-mtd-overridden-oobsize" property. The
property helps avoid "NMBM configuration mismatch" error if mtd "OOB size"
is not equal to the "spare size" which is stored in the nmbm signature.

Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17549
Signed-off-by: Robert Marko <robimarko@gmail.com>
2025-02-07 09:04:35 +01:00
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
Robert Marko
458cafd0d0 generic: routerbootpart: fix compilation on 64-bit
Trying to compile routerbootpart parsers on 64-bit platforms will fail:
drivers/mtd/parsers/routerbootpart.c: In function 'routerboot_find_dynparts':
./include/linux/kern_levels.h:5:25: error: format '%X' expects argument of type 'unsigned int', but argument 3 has type 'size_t' {aka 'long unsigned int'} [-Werror=format=]
    5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
      |                         ^~~~~~
./include/linux/printk.h:427:25: note: in definition of macro 'printk_index_wrap'
  427 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
      |                         ^~~~
./include/linux/printk.h:498:9: note: in expansion of macro 'printk'
  498 |         printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
      |         ^~~~~~
./include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
   11 | #define KERN_ERR        KERN_SOH "3"    /* error conditions */
      |                         ^~~~~~~~
./include/linux/printk.h:498:16: note: in expansion of macro 'KERN_ERR'
  498 |         printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
      |                ^~~~~~~~
drivers/mtd/parsers/routerbootpart.c:170:25: note: in expansion of macro 'pr_err'
  170 |                         pr_err("%s: mtd_read error while parsing (offset: 0x%X): %d\n",

So, lets simply add the length modifier 'z' to fix compilation.

Link: https://github.com/openwrt/openwrt/pull/15640
Signed-off-by: Robert Marko <robimarko@gmail.com>
2024-06-06 11:45:03 +02:00
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
Michał Kępień
626c84340d kernel: mtk_bmt: refactor to avoid deep recursion
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>
2023-04-29 12:58:48 +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
Chuanhong Guo
f183ce35b8
kernel: mtk-bmt: fix usage of _oob_read
_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>
2023-01-21 10:54:23 +08:00
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
Chuanhong Guo
6fa50e26e7 kernel: mtk_bmt: skip bitflip check if threshold isn't set
kernel spi-nand driver leaves this field empty and let mtd set it later.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
2022-04-09 21:08:26 +08:00
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
Felix Fietkau
2a8a333ee9 kernel: mtk_bmt: add debugfs file to attempt repair of remapped sectors
This can be used for sectors that are not physically damaged

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Felix Fietkau
06382d1af7 kernel: add support for mediatek NMBM flash mapping support
This NAND flash remapping method is used on newer MediaTek devices with NAND
flash.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Felix Fietkau
be1f2b4d9d kernel: mtk_bmt: on error, do not attempt to remap out-of-range blocks
Pass errors to caller instead

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Felix Fietkau
7d1e2be160 kernel: mtk_bmt: fix block copying on remap with bmt v2
Copy from the previously mapped block (in case it was remapped already)

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Felix Fietkau
b4c7f8c5f7 kernel: mtk_bmt: allow get_mapping_block to return an error
Used by the mapping implementation to indicate that no backing block is
available

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Felix Fietkau
601c7b4adb kernel: split up mtk_bmt driver code
Keep a separate source file per variant

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-25 21:11:09 +01:00
Felix Fietkau
e2aa04d1e5 kernel: mtk_bmt: add support for the bbt format used on mt7621
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>
2022-01-13 18:33:06 +01:00
Felix Fietkau
ff6b4f2cfb kernel: mtk_bmt: add abstraction for supporting other formats
Preparation for supporting remapping on MT7621

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-01-13 18:33:06 +01:00
Felix Fietkau
7235c8d00c kernel: mtk_bmt: remap blocks after reaching bitflip threshold
This ensures that blocks are remapped before data becomes corrupt

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-01-13 18:33:06 +01:00
Felix Fietkau
0ddead0897 kernel: mtk_bmt: pass number of bitflips on read to the caller
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-01-13 18:33:06 +01:00
Felix Fietkau
b86452f841 kernel: mtk_bmt: add support for limiting range of remapping
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>
2022-01-13 18:33:06 +01:00
Felix Fietkau
31b6cfb288 kernel: mtk_bmt: extend debug interface
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>
2022-01-13 18:33:06 +01:00
Felix Fietkau
fde2421597 kernel: mtk_bmt: fix remapping after read/write failure
Copy from the previous block in order to preserve existing data

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-01-13 18:33:06 +01:00
Felix Fietkau
bcf91fe884 kernel: move mediatek BMT support patch to generic patches
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>
2022-01-13 18:33:06 +01:00