Commit Graph

743 Commits

Author SHA1 Message Date
Mieczyslaw Nalewaj
4b81eda3c1 kernel: support for RTL8367C/S switch
From driver point of view no differance between rtl8367b and rtl8367s
if it connected through EXT2 (rgmii only).
So this trivial patch add some identification and initialization only.
SGMII/HSGMII mode for EXT1 is not implemented for the sake of patch
clairity.

Signed-off-by: Serge Vasilugin <vasilugin@yandex.ru>
[Fix code format]
Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn>
[add flags to separate chip_num/chip_id detection; drop error print in
rtl8367b_init_regs, drop unnecessary info prints, code style fixes]
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
[rebase; use MII macros]
Signed-off-by: Gaspare Bruno <gaspare@anlix.io>
[code optimization]
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
2024-02-24 19:20:52 +01:00
Mieczyslaw Nalewaj
dca146cc77 kernel: rtl8366_smi: explicitly set phy addr for switch
By default rtl8366_smi use phy addr 0 at mii-bus to access switch registers.
This patch allow to set it explicitly in dts-file:

	rtl8367 {
		compatible = "realtek,rtl8367b";
		phy-id = <29>; /* switch address at mii-bus */
		realtek,extif2 = <1 0 1 1 1 1 1 1 2>;
		mii-bus = <&mdio>;
		cpu-port = <7>;
	}

Use default 0 address if not set.
Backward compatibility tested on tplink archer c2 v1 (rtl8367rb switch)

Signed-off-by: Serge Vasilugin <vasilugin@yandex.ru>
[code style fixes, add explicit phy_id assignment in probe_plat, use
phy-id instead of phy_id for of property name]
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
[rebase]
Signed-off-by: Gaspare Bruno <gaspare@anlix.io>
[added phy_id to struct rtl8366_smi]
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
2024-02-24 19:20:52 +01:00
Daniel Golle
548c383bdf kernel: move uImage.FIT partition parser to mediatek target
The partition parser approach has been rejected upstream, it will be
replaced by a small block driver which is the solution suggestion by
upstream maintainers.
As the partition parser has only been used by the mediatek target, as
a first step, move it there.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2024-02-15 19:06:36 +00:00
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
Christian Marangi
79ba851a8a
generic: rtl8366_smi: rename and drop conflicting vlan GPL symbols
Symbol rtl8366_enable_vlan and rtl8366_reset_vlan are also present in
the DSA driver upstream and conflicts as they are EXPORTED.

Rename them to rtl8366_smi_enable_vlan and rtl8366_smi_reset_vlan to fix
the conflict. While at it also make them static and drop the
EXPORT_SYMBOL_GPL as they are not actually used by any other driver and
exporting them is useless.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-10-06 21:52:41 +02:00
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
Aleksander Jan Bajkowski
d69becd307 kernel: use struct group to wipe psb6970 volatile priv data
Instead of reference vlan and do strange subtraction, use the handy
struct_group() to create a virtual struct of the same size of the
members. This permits to have a more secure memset and fix compilation
warning in 6.1 where additional checks are done.

Fix compilation warning:
| inlined from 'psb6970_reset_switch' at drivers/net/phy/psb6970.c:275:2:
| ./include/linux/fortify-string.h:314:25: error: call to '__write_overflow_field'
| declared with attribute warning: detected write beyond size of field
| (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
|  314 |                         __write_overflow_field(p_size_field, size);
|      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|cc1: all warnings being treated as errors

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
2023-06-08 17:25:22 +02:00
Daniel Golle
07bca1adaa generic: use only first element in bootconf for uImage.FIT
Now that it is possible to load several device tree overlays by
appending their config names to bootconf the uImage.FIT partition
parser need to discard everything after the first '#' character in
bootconf when looking up the config node to be used.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2023-06-05 11:36:32 +01:00
Robert Marko
effccdd444 generic: b53: rename exported symbols to avoid upstream conflict
Upstream DSA driver is exporting symbols with the same name as our
downstream swconfig driver, so lets rename the downstream symbols to make
them unique and avoid the conflict on 6.1 kernel.

Without this change, building 6.1 with kmod-switch-bcm53xx would conflict
with the B53 DSA driver and CI would fail.

Signed-off-by: Robert Marko <robimarko@gmail.com>
2023-06-02 21:20:53 +02:00
Christian Lamparter
fdd3605398 kernel: 6.1: fix swconfig not working
On 6.1 swconfig is not showing up and there's a splat:

| ------------[ cut here ]------------
| WARNING: CPU: 0 PID: 1 at genl_register_family+0xb4/0x81c
| Modules linked in:
| CPU: 0 PID: 1 Comm: swapper Not tainted 6.1.29 #0
| Hardware name: Netgear WNDR4700/WNDR4720 Series APM821XX [...]
| NIP:  c0599370 LR: c0599344 CTR: c08c9950
| REGS: c0c21cb0 TRAP: 0700   Not tainted  (6.1.29)
| MSR:  00029000 <CE,EE,ME>  CR: 48000888  XER: 00000000
|
| GPR00: c0002678 c0c21da0 c0c2cd80 [...]
| NIP [c0599370] genl_register_family+0xb4/0x81c
| LR [c0599344] genl_register_family+0x88/0x81c
| Call Trace:
| [c0c21d80] [c0c21df4] 0xc0c21df4 (unreliable)
| [c0c21e10] [c08c9988] swconfig_init+0x38/0x64
| [c0c21e30] [c0002678] do_one_initcall+0x50/0x260

This is due to it failing to register the netlink
family since changes to upstream linux in patch.

| commit 9c5d03d362519f36cd551aec596388f895c93d2d
|Author: Jakub Kicinski <kuba@kernel.org>
|Date:   Wed Aug 24 17:18:30 2022 -0700
|
|   genetlink: start to validate reserved header byte

this is fixed by adding the proper value to the introduced
"resv_start_op" parameter.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2023-05-30 01:58:20 +02:00
Christian Marangi
9273487930
kernel: use eth_random_addr instead of random_ether_addr
random_ether_addr is just a reference to eth_random_addr, that was later
dropped in more recent kernel version.

Drop random_ether_addr and use eth_random_addr directly to fix
compilation error in 6.1

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-22 22:28:18 +02:00
Christian Marangi
0605fa693e
kernek: use struct_group to wipe ar8216 volatile priv data
Instead of reference vlan and do strange subtraction, use the handy
struct_group() to create a virtual struct of the same size of the
members. This permits to have a more secure memset and fix compilation
warning in 6.1 where additional checks are done.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-22 22:28:18 +02:00
Christian Marangi
fb6de77a82
kernel: refresh swconfig_leds to handle new trigger locking
Refresh swconfig_leds source to handle new trigger locking that is now a
spinlock.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-22 22:28:17 +02:00
Christian Marangi
5f987b84ef
kernel: refresh IFF_NO_IP_ALIGN ifdef for kernel >= 6.1
Kernel 6.1 expanded the priv_flags to long bitmap so update and restore
it to priv_flags.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-22 22:28:17 +02:00
Aleksander Jan Bajkowski
7365e6b00a kernel: remove obsolete kernel version switches
This removes unneeded kernel version switches from the targets after
kernel 5.10 has been dropped.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
2023-05-20 15:19:14 +02:00
Aleksander Jan Bajkowski
dc6b55e21f
kernel: psb6970: drop unused variable in psb6970_config_init
Drop unused variable in psb6970_config_init. This variable should have
been dropped in 0806f8fc80 ("lantiq: add Linux 5.10 support as testing kernel").

This fix compilation warning:
drivers/net/phy/psb6970.c: In function 'psb6970_config_init':
drivers/net/phy/psb6970.c:310:28: warning: unused variable 'dev' [-Wunused-variable]
  310 |         struct net_device *dev = pdev->attached_dev;
      |
cc1: all warnings being treated as errors

Fixes: 0806f8fc80 ("lantiq: add Linux 5.10 support as testing kernel")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
2023-05-12 03:15:36 +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
Álvaro Fernández Rojas
1129b226f7 kernel: ssb: fallback-sprom: check bustype
host_pci is only defined when bustype is SSB_BUSTYPE_PCI.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-04-24 21:02:29 +02:00
Álvaro Fernández Rojas
60acbbb1af kernel: bcma: fallback-sprom: check hosttype
host_pci is only defined when hosttype is BCMA_HOSTTYPE_PCI.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-04-24 21:02:29 +02:00
Álvaro Fernández Rojas
52e5a8b5cd kernel: bcma: fallback-sprom: align extraction with upstream
The current bcma SPROM extraction from upstream only supports SPROMs with
revisions from 8 to 11.
Let's align the downstream fallback driver with upstream.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-04-24 21:02:15 +02:00
Álvaro Fernández Rojas
2c234474a2 kernel: ssb: fallback-sprom: drop mac leftovers
This was left behind when removing the MAC extractions from PCI SPROMs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-04-24 20:13:13 +02:00
Álvaro Fernández Rojas
d5c93d2b85 kernel: ssb: fallback-sprom: optimize struct data
- Remove unneeded mac bytes from struct (it's already present in the SPROM).
- Convert devid_override to boolean.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-04-24 20:10:48 +02:00
Álvaro Fernández Rojas
70e88044d5 kernel: bcma: fallback-sprom: optimize struct data
- Remove unneeded mac bytes from struct (it's already present in the SPROM).
- Convert devid_override to boolean.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-04-24 20:10:28 +02:00
Álvaro Fernández Rojas
e656bcbab0 kernel: add bcma/ssb fallback SPROM support
This adds generic kernel support for Broadcom Fallback SPROMs so that it can be
used in any target, even non Broadcom ones.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-04-23 12:18:35 +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
Felix Fietkau
4363faef8a kernel: move ubnt ledbar driver to a separate package
Simplifies the tree by removing a non-upstream kernel patch and related kconfig
symbols

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-30 11:28:51 +02:00
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
Sven Wegener
53fc987b25 generic: move ledbar driver from mediatek target
This moves the ledbar driver to generic, to be also used by the ramips target.

Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
2022-09-11 20:26:42 +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
Daniel Golle
690f715267
kernel: update FIT partition parser to new property name
The commit "uboot-mediatek: replace patch with accepted commit" changed
the name of the boot configuration property from 'bootconf' to
'u-boot,bootconf'. Reflect this change in the FIT partition parser.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-04-20 15:23:02 +01:00
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
Ansuel Smith
49d9d2b210 generic: fix compilation warning for ar8xxx swconfig
There are 2 warning for ar8xxx swconfig.
- Fix not used dev variable when ETHERNET_PACKET_MANGLE
  is not selected
- Convert fallthrough comment to compilation macro

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2022-03-27 04:51:38 +01:00
Daniel Golle
30a5e07390 generic: 5.15: get uImage.FIT partition parser ready
Prepare uImage.FIT partition parser for Linux 5.15

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2022-03-27 04:51:31 +01:00
Ansuel Smith
1f302afd73 generic: 5.15: rework hack patch
Rework hack patch in dir for kernel 5.15.
For the specific patch of packet mangeling introduce a new extra_priv_flags
as we don't have enough space to add additional flags in priv_flags.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
2022-03-27 00:07:34 +00:00
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
Daniel Golle
d3a4607fc6 kernel: generic: fix warning in FIT partition parser
Use 'const char *' where necessary to make gcc get quiet.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-03-24 03:27:12 +00:00
Daniel Golle
ab143647ef kernel: generic: improve FIT partition parser
* only map filesystems configured in 'loadables'
 * allow mapping more than one filesystem (e.g. customization/branding
   or localization in addition to rootfs)
 * small cleaning here and there

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-03-24 00:46:45 +00:00
Daniel Golle
503f3b9f0e
kernel: generic: use chosen bootconf in FIT partition parser
If the selected boot configuration is stored by U-Boot in '/chosen'
node as 'bootconf' attribute, use that configuration to resolve the
block device used as rootfs. Fall back to use the default configuration
in case 'bootconf' is not present.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-03-21 23:48:09 +00:00
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