Commit Graph

24069 Commits

Author SHA1 Message Date
Bjørn Mork
8c986d2ab9 ramips: mt7621: Add support for ZyXEL NR7101
The ZyXEL NR7101 is an 802.3at PoE powered 5G outdoor (IP68) CPE
with integrated directional 5G/LTE antennas.

Specifications:

 - SoC: MediaTek MT7621AT
 - RAM: 256 MB
 - Flash: 128 MB MB NAND (MX30LF1G18AC)
 - WiFi: MediaTek MT7603E
 - Switch: 1 LAN port (Gigabiti)
 - 5G/LTE: Quectel RG502Q-EA connected by USB3 to SoC
 - SIM: 2 micro-SIM slots under transparent cover
 - Buttons: Reset, WLAN under same cover
 - LEDs: Multicolour green/red/yellow under same cover (visible)
 - Power: 802.3at PoE via LAN port

The device is built as an outdoor ethernet to 5G/LTE bridge or
router. The Wifi interface is intended for installation and/or
temporary management purposes only.

UART Serial:

57600N1
Located on populated 5 pin header J5:

 [o] GND
 [ ] key - no pin
 [o] RX
 [o] TX
 [o] 3.3V Vcc

Remove the SIM/button/LED cover, the WLAN button and 12 screws
holding the back plate and antenna cover together. The GPS antenna
is fixed to the cover, so be careful with the cable.  Remove 4
screws fixing the antenna board to the main board, again being
careful with the cables.

A bluetooth TTL adapter is recommended for permanent console
access, to keep the router water and dustproof. The 3.3V pin is
able to power such an adapter.

MAC addresses:

OpenWrt OEM   Address          Found as
lan     eth2  08:26:97:*:*:BC  Factory 0xe000 (hex), label
wlan0   ra0   08:26:97:*:*:BD  Factory 0x4 (hex)
wwan0   usb0  random

WARNING!!

ISP managed firmware might at any time update itself to a version
where all known workarounds have been disabled.  Never boot an ISP
managed firmware with a SIM in any of the slots if you intend to use
the router with OpenWrt. The bootloader lock can only be disabled with
root access to running firmware. The flash chip is physically
inaccessible without soldering.

Installation from OEM web GUI:

- Log in as "supervisor" on https://172.17.1.1/
- Upload OpenWrt initramfs-recovery.bin image on the
  Maintenance -> Firmware page
- Wait for OpenWrt to boot and ssh to root@192.168.1.1
- (optional) Copy OpenWrt to the recovery partition. See below
- Sysupgrade to the OpenWrt sysupgrade image and reboot

Installation from OEM ssh:

- Log in as "root" on 172.17.1.1 port 22022
- scp OpenWrt initramfs-recovery.bin image to 172.17.1.1:/tmp
- Prepare bootloader config by running:
    nvram setro uboot DebugFlag 0x1
    nvram setro uboot CheckBypass 0
    nvram commit
- Run "mtd_write -w write initramfs-recovery.bin Kernel" and reboot
- Wait for OpenWrt to boot and ssh to root@192.168.1.1
- (optional) Copy OpenWrt to the recovery partition. See below
- Sysupgrade to the OpenWrt sysupgrade image and reboot

Copying OpenWrt to the recovery partition:

- Verify that you are running a working OpenWrt recovery image
  from flash
- ssh to root@192.168.1.1 and run:
    fw_setenv CheckBypass 0
    mtd -r erase Kernel2
- Wait while the bootloader mirrors Image1 to Image2

NOTE: This should only be done after successfully booting the OpenWrt
  recovery image from the primary partition during installation.  Do
  not do this after having sysupgraded OpenWrt!  Reinstalling the
  recovery image on normal upgrades is not required or recommended.

Installation from Z-Loader:

- Halt boot by pressing Escape on console
- Set up a tftp server to serve the OpenWrt initramfs-recovery.bin
  image at 10.10.10.3
- Type "ATNR 1,initramfs-recovery.bin" at the "ZLB>" prompt
- Wait for OpenWrt to boot and ssh to root@192.168.1.1
- Sysupgrade to the OpenWrt sysupgrade image

NOTE: ATNR will write the recovery image to both primary and recovery
  partitions in one go.

Booting from RAM:

- Halt boot by pressing Escape on console
- Type "ATGU" at the "ZLB>" prompt to enter the U-Boot menu
- Press "4" to select "4: Entr boot command line interface."
- Set up a tftp server to serve the OpenWrt initramfs-recovery.bin
  image at 10.10.10.3
- Load it using "tftpboot 0x88000000 initramfs-recovery.bin"
- Boot with "bootm  0x8800017C" to skip the 380 (0x17C) bytes ZyXEL
  header

This method can also be used to RAM boot OEM firmware. The warning
regarding OEM applies!  Never boot an unknown OEM firmware, or any OEM
firmware with a SIM in any slot.

NOTE: U-Boot configuration is incomplete (on some devices?). You may
  have to configure a working mac address before running tftp using
   "setenv eth0addr <mac>"

Unlocking the bootloader:

If you are unebale to halt boot, then the bootloader is locked.

The OEM firmware locks the bootloader on every boot by setting
DebugFlag to 0.  Setting it to 1 is therefore only temporary
when OEM firmware is installed.

- Run "nvram setro uboot DebugFlag 0x1; nvram commit" in OEM firmware
- Run "fw_setenv DebugFlag 0x1" in OpenWrt

  NOTE:
    OpenWrt does this automatically on first boot if necessary

  NOTE2:
    Setting the flag to 0x1 avoids the reset to 0 in known OEM
    versions, but this might change.

  WARNING:
    Writing anything to flash while the bootloader is locked is
    considered extremely risky. Errors might cause a permanent
    brick!

Enabling management access from LAN:

Temporary workaround to allow installing OpenWrt if OEM firmware
has disabled LAN management:

- Connect to console
- Log in as "root"
- Run "iptables -I INPUT -i br0 -j ACCEPT"

Notes on the OEM/bootloader dual partition scheme

The dual partition scheme on this device uses Image2 as a recovery
image only. The device will always boot from Image1, but the
bootloader might copy Image2 to Image1 under specific conditions. This
scheme prevents repurposing of the space occupied by Image2 in any
useful way.

Validation of primary and recovery images is controlled by the
variables CheckBypass, Image1Stable, and Image1Try.

The bootloader sets CheckBypass to 0 and reboots if Image1 fails
validation.

If CheckBypass is 0 and Image1 is invalid then Image2 is copied to
Image1.

If CheckBypass is 0 and Image2 is invalid, then Image1 is copied to
Image2.

If CheckBypass is 1 then all tests are skipped and Image1 is booted
unconditionally.  CheckBypass is set to 1 after each successful
validation of Image1.

Image1Try is incremented if Image1Stable is 0, and Image2 is copied to
Image1 if Image1Try is 3 or larger.  But the bootloader only tests
Image1Try if CheckBypass is 0, which is impossible unless the booted
image sets it to 0 before failing.

The system is therefore not resilient against runtime errors like
failure to mount the rootfs, unless the kernel image sets CheckBypass
to 0 before failing. This is not yet implemented in OpenWrt.

Setting Image1Stable to 1 prevents the bootloader from updating
Image1Try on every boot, saving unnecessary writes to the environment
partition.

Keeping an OpenWrt initramfs recovery as Image2 is recommended
primarily to avoid unwanted OEM firmware boots on failure. Ref the
warning above. It enables console-less recovery in case of some
failures to boot from Image1.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Tested-by: Bjørn Mork <bjorn@mork.no>
(cherry picked from commit 2449a63208)
2021-06-10 17:09:35 +02:00
Adrian Schmutzler
ec8fe0a189 treewide: make AddDepends/usb-serial selective
Make packages depending on usb-serial selective, so we do not have
to add kmod-usb-serial manually for every device.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit 9397b22df1)
2021-06-08 22:50:32 +02:00
Mark Carroll
ba5b98fcb8 x86: kernel: enable Fusion-MPT SAS driver
Compile in MPT SAS driver required to mount rootfs on some VMWare
systems (e.g. required for 1&1 IONOS).

Signed-off-by: Mark Carroll <git@markcarroll.net>
(cherry picked from commit 8716dda074)
2021-06-08 20:44:00 +02:00
Tomasz Maciej Nowak
f788dfdf55 ipq40xx: add uboot-envtools to default packages
When support for Luma WRTQ-329ACN was added, the instructions for
flashing this device include using tools from uboot-envtools package.
Unfortunately the OpenWrt buildroot system omits packages from
DEVICE_PACKAGES when CONFIG_TARGET_MULTI_PROFILE,
CONFIG_TARGET_PER_DEVICE_ROOTFS, CONFIG_TARGET_ALL_PROFILES are set. In
result the official images are without tools mentioned in the
instruction. The workoround for the fashing would be installing
uboot-envtools when booted with initramfs image, but not always the
access to internet is available. The other method would be to issue the
necesary command in U-Boot environment but some serial terminals default
configuration don't work well with pasting lines longer than 80 chars.
Therefore add uboot-envtools to default packages, which adds really
small flash footprint to rootfs, where increased size usually is not an
issue.

Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
(cherry picked from commit 1984a6bbca)
2021-06-08 20:43:56 +02:00
Alex Henrie
0753cd9853 ipq806x: fix LAN and WAN port assignments on TP-Link AD7200
LAN port 4 was swapped with the WAN port and the remaining three LAN
ports were numbered in reverse order from their labels on the case.

Fixes: 1a775a4fd0 ("ipq806x: add support for TP-Link Talon AD7200")
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
(cherry picked from commit 6fb27e8e6d)
2021-06-08 20:43:52 +02:00
Hauke Mehrtens
b55d3d6904 kernel: bump 5.4 to 5.4.124
Manually rebased
  generic/hack-5.4/662-remove_pfifo_fast.patch
  ramips/patches-5.4/0048-asoc-add-mt7620-support.patch

All others updated automatically.

Compile-tested on: armvirt/64, x86/generic, ath79/generic, ramips/mt7621
Runtime-tested on: armvirt/64, x86/generic, ath79/generic

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-06-06 17:54:51 +02:00
Lech Perczak
6a5545006e rampis: use lzma-loader for ZTE MF283+
Without that, after merging support to master, the device fails to boot
due to LZMA decompression error:

3: System Boot system code via Flash.
raspi_read: from:80000 len:40
.   Image Name:   MIPS OpenWrt Linux-5.4.99
   Created:      2021-02-25  23:35:00 UTC
   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    1786664 Bytes =  1.7 MB
   Load Address: 80000000
   Entry Point:  80000000
raspi_read: from:80040 len:1b4328
............................   Verifying Checksum ... OK
   Uncompressing Kernel Image ... LZMA ERROR 1 - must RESET board to recover

Use lzma-loader to fix it.

Fixes: 59d065c9f8 ("ramips: add support for ZTE MF283+")
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>

(cherry picked from commit 410fb05b44)
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
2021-06-02 21:29:16 +02:00
Lech Perczak
27bcde303b ramips: add support for ZTE MF283+
ZTE MF283+ is a dual-antenna LTE category 4 router, based on Ralink
RT3352 SoC, and built-in ZTE P685M PCIe MiniCard LTE modem.

Hardware highlighs:
- CPU: MIPS24KEc at 400MHz,
- RAM: 64MB DDR2,
- Flash: 16MB SPI,
- Ethernet: 4 10/100M port switch with VLAN support,
- Wireless: Dual-stream 802.11n (RT2860), with two internal antennas,
- WWAN: Built-in ZTE P685M modem, with two internal antennas and two
  switching SMA connectors for external antennas,
- FXS: Single ATA, with two connectors marked PHONE1 and PHONE2,
  internally wired in parallel by 0-Ohm resistors, handled entirely by
  internal WWAN modem.
- USB: internal miniPCIe slot for modem,
  unpopulated USB A connector on PCB.
- SIM slot for the WWAN modem.
- UART connector for the console (unpopulated) at 3.3V,
  pinout: 1: VCC, 2: TXD, 3: RXD, 4: GND,
  settings: 57600-8-N-1.
- LEDs: Power (fixed), WLAN, WWAN (RGB),
  phone (bicolor, controlled by modem), Signal,
  4 link/act LEDs for LAN1-4.
- Buttons: WPS, reset.

Installation:
As the modem is, for most of the time, provided by carriers, there is no
possibility to flash through web interface, only built-in FOTA update
and TFTP recovery are supported.

There are two installation methods:
(1) Using serial console and initramfs-kernel - recommended, as it
allows you to back up original firmware, or
(2) Using TFTP recovery - does not require disassembly.

(1) Using serial console:
To install OpenWrt, one needs to disassemble the
router and flash it via TFTP by using serial console:
- Locate unpopulated 4-pin header on the top of the board, near buttons.
- Connect UART adapter to the connector. Use 3.3V voltage level only,
  omit VCC connection. Pin 1 (VCC) is marked by square pad.
- Put your initramfs-kernel image in TFTP server directory.
- Power-up the device.
- Press "1" to load initramfs image to RAM.
- Enter IP address chosen for the device (defaults to 192.168.0.1).
- Enter TFTP server IP address (defaults to 192.168.0.22).
- Enter image filename as put inside TFTP server - something short,
  like firmware.bin is recommended.
- Hit enter to load the image. U-boot will store above values in
  persistent environment for next installation.
- If you ever might want to return to vendor firmware,
  BACK UP CONTENTS OF YOUR FLASH NOW.
  For this router, commonly used by mobile networks,
  plain vendor images are not officially available.
  To do so, copy contents of each /dev/mtd[0-3], "firmware" - mtd3 being the
  most important, and copy them over network to your PC. But in case
  anything goes wrong, PLEASE do back up ALL OF THEM.
- From under OpenWrt just booted, load the sysupgrade image to tmpfs,
  and execute sysupgrade.

(2) Using TFTP recovery
- Set your host IP to 192.168.0.22 - for example using:
sudo ip addr add 192.168.0.22/24 dev <interface>
- Set up a TFTP server on your machine
- Put the sysupgrade image in TFTP server root named as 'root_uImage'
  (no quotes), for example using tftpd:
  cp openwrt-ramips-rt305x-zte_mf283plus-squashfs-sysupgrade.bin /srv/tftp/root_uImage
- Power on the router holding BOTH Reset and WPS buttons held for around
  5 seconds, until after WWAN and Signal LEDs blink.
- Wait for OpenWrt to start booting up, this should take around a
  minute.

Return to original firmware:
Here, again there are two possibilities are possible, just like for
installation:
(1) Using initramfs-kernel image and serial console
(2) Using TFTP recovery

(1) Using initramfs-kernel image and serial console
- Boot OpenWrt initramfs-kernel image via TFTP the same as for
  installation.
- Copy over the backed up "firmware.bin" image of "mtd3" to /tmp/
- Use "mtd write /tmp/firmware.bin /dev/mtd3", where firmware.bin is
  your backup taken before OpenWrt installation, and /dev/mtd3 is the
  "firmware" partition.

(2) Using TFTP recovery
- Follow the same steps as for installation, but replacing 'root_uImage'
  with firmware backup you took during installation, or by vendor
  firmware obtained elsewhere.

A few quirks of the device, noted from my instance:
- Wired and wireless MAC addresses written in flash are the same,
  despite being in separate locations.
- Power LED is hardwired to 3.3V, so there is no status LED per se, and
  WLAN LED is controlled by WLAN driver, so I had to hijack 3G/4G LED
  for status - original firmware also does this in bootup.
- FXS subsystem and its LED is controlled by the
  modem, so it work independently of OpenWrt.
  Tested to work even before OpenWrt booted.
  I managed to open up modem's shell via ADB,
  and found from its kernel logs, that FXS and its LED is indeed controlled
  by modem.
- While finding LEDs, I had no GPL source drop from ZTE, so I had to probe for
  each and every one of them manually, so this might not be complete -
  it looks like bicolor LED is used for FXS, possibly to support
  dual-ported variant in other device sharing the PCB.
- Flash performance is very low, despite enabling 50MHz clock and fast
  read command, due to using 4k sectors throughout the target. I decided
  to keep it at the moment, to avoid breaking existing devices - I
  identified one potentially affected, should this be limited to under
  4MB of Flash. The difference between sysupgrade durations is whopping
  3min vs 8min, so this is worth pursuing.

In vendor firmware, WWAN LED behaviour is as follows, citing the manual:
- red - no registration,
- green - 3G,
- blue - 4G.
Blinking indicates activity, so netdev trigger mapped from wwan0 to blue:wwan
looks reasonable at the moment, for full replacement, a script similar to
"rssileds" would need to be developed.

Behaviour of "Signal LED" in vendor firmware is as follows:
- Off - no signal,
- Blinking - poor coverage
- Solid - good coverage.

A few more details on the built-in LTE modem:
Modem is not fully supported upstream in Linux - only two CDC ports
(DIAG and one for QMI) probe. I sent patches upstream to add required device
IDs for full support.
The mapping of USB functions is as follows:
- CDC (QCDM) - dedicated to comunicating with proprietary Qualcomm tools.
- CDC (PCUI) - not supported by upstream 'option' driver yet. Patch
  submitted upstream.
- CDC (Modem) - Exactly the same as above
- QMI - A patch is sent upstream to add device ID, with that in place,
  uqmi did connect successfully, once I selected correct PDP context
  type for my SIM (IPv4-only, not default IPv4v6).
- ADB - self-explanatory, one can access the ADB shell with a device ID
  added to 51-android.rules like so:

SUBSYSTEM!="usb", GOTO="android_usb_rules_end"
LABEL="android_usb_rules_begin"
SUBSYSTEM=="usb", ATTR{idVendor}=="19d2", ATTR{idProduct}=="1275", ENV{adb_user}="yes"
ENV{adb_user}=="yes", MODE="0660", GROUP="plugdev", TAG+="uaccess"
LABEL="android_usb_rules_end"

While not really needed in OpenWrt, it might come useful if one decides to
move the modem to their PC to hack it further, insides seem to be pretty
interesting. ADB also works well from within OpenWrt without that. O
course it isn't needed for normal operation, so I left it out of
DEVICE_PACKAGES.

Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
[remove kmod-usb-ledtrig-usbport, take merged upstream patches]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

(cherry picked from commit 59d065c9f8)
[Manually remove no longer needed patches for modem]
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
2021-06-02 21:29:16 +02:00
Kuan-Yi Li
fc0fd54738 kernel: bump 5.4 to 5.4.123
Removed because in upstream
  generic/pending-5.4/770-02-net-ethernet-mtk_eth_soc-fix-rx-vlan-offload.patch

All others updated automatically.

Runtime-tested on bcm27xx/bcm2711.

Fixes: FS#3085
Signed-off-by: Kuan-Yi Li <kyli@abysm.org>
2021-05-30 23:45:49 +02:00
Rafał Miłecki
16ccf888ee base-files: generate network config with "device" options
Replace "ifname" with "device" as netifd has been recently patches to
used the later one. It's more clear and accurate.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 4b9a67362d)
2021-05-27 11:39:15 +02:00
Ansuel Smith
0b0bec56ea ipq806x: improve system latency
Various report and data show that the freq 384000 is too low and cause some
extra latency to the entire system. OEM qsdk code also set the min frequency
for this target to 800 mhz.
Also some user notice some instability with this idle frequency, solved by
setting the min frequency to 600mhz. Fix all these kind of problem by
introducing a boot init.d script that set the min frequency to 600mhz and set
the ondemand governor to be more aggressive. The script set these value only if
the ondemand governor is detected. 384 mhz freq is still available and user can
decide to restore the old behavior by disabling this script.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
(cherry picked from commit 861b82d36a)
2021-05-26 23:36:40 +02:00
Moritz Warning
c4926a4255 archs38: set device vendor and model variables
This fixes the profiles.json output.

Signed-off-by: Moritz Warning <moritzwarning@web.de>
(cherry picked from commit cc54f65daa)
2021-05-26 23:36:40 +02:00
Moritz Warning
3f5109f538 arc770: set device vendor and model variables
This fixes the profiles.json output.

Signed-off-by: Moritz Warning <moritzwarning@web.de>
(cherry picked from commit d00bbd9de0)
2021-05-26 23:36:40 +02:00
Robert Marko
d5ea756c3e mvebu: 5.4 fix DVFS caused random boot crashes
5.10.37 and 5.4.119 introduced a lot of DVFS changes for Armada 37xx from 5.13 kernel.

Unfortunately commit:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/cpufreq/armada-37xx-cpufreq.c?h=v5.10.37&id=a13b110e7c9e0dc2edcc7a19d4255fc88abd83cc

This patch actually corrects the things so that 1 or 1.2GHz models would actually get scaled to their native frequency.

However, due to a AVS setting voltages too low this will cause random crashes on 1.2GHz models.

So, until a new safe for everybody voltage is agreed on
lets revert the patch.

Fixes: 9d21ecc ("kernel: bump 5.4 to 5.4.119")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
(cherry picked from commit 080a0b74e3)
2021-05-23 16:10:59 +02:00
DENG Qingfang
1a2ebb88f5 generic: mt7530: fix EEE patch
The higher 16-bit of EEE register was overwritten by mistake, fix that.

Fixes: 5b9ba4a93e ("generic: mt7530: support adjusting EEE")
Signed-off-by: DENG Qingfang <dqfext@gmail.com>
(cherry picked from commit 8d1567ba61)
2021-05-23 16:10:59 +02:00
Daniel González Cabanelas
4dcddedfd2 kernel: backport "mvmdio avoid error message for optional IRQ"
Rid of kernel error message:
  [    0.780828] orion-mdio d0072004.mdio: IRQ index 0 not found

on Marvell targets backporting the kernel commit fa2632f74e57

Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com>
(cherry picked from commit d683175236)
2021-05-23 16:10:59 +02:00
Hauke Mehrtens
7a39781403 bcm63xx: Remove patch already applied upstream
The patch 434-nand-brcmnand-fix-OOB-R-W-with-Hamming-ECC.patch is
integrated in the kernel update 5.4.119 and not needed any more.

Fixes: 9d21eccc6b ("kernel: bump 5.4 to 5.4.119")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-05-23 16:10:41 +02:00
Piotr Dymacz
f9b0215e28 ramips: fix SUPPORTED_DEVICES for ALFA Network devices
Vendor firmware expects model name without manufacturer name inside
'supported_devices' part of metadata. This allows direct upgrade to
OpenWrt from vendor's GUI.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
(cherry picked from commit cf3f1f82ea)
2021-05-17 00:02:14 +02:00
Hauke Mehrtens
9d21eccc6b kernel: bump 5.4 to 5.4.119
Removed because in upstream
  generic/backport-5.4/050-gro-fix-napi_gro_frags-Fast-GRO-breakage-due-to-IP-a.patch
  ath79/patches-5.4/0050-spi-ath79-remove-spi-master-setup-and-cleanup-assign.patch
  ramips/patches-5.4/999-fix-pci-init-mt7620.patch

Manually rebased
  ath79/patches-5.4/0033-spi-ath79-drop-pdata-support.patch

All others updated automatically.

Compile-tested on: x86/64, ath79/generic
Runtime-tested on: x86/64, ath79/generic

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-05-15 19:32:20 +02:00
Hauke Mehrtens
c287500a65 mvebu: Remove patch only needed for kernel 5.10
Kernel 5.10 is not supported by OpenWrt 21.02, remove this patch.

Fixes: d530ff37bf ("mvebu: armada 370: dts: fix the crypto engine")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-05-14 23:36:47 +02:00
Hauke Mehrtens
f49d4aebe2 kernel: Activate FORTIFY_SOURCE for MIPS kernel 5.4
CONFIG_FORTIFY_SOURCE=y is already set in the generic kernel
configuration, but it is not working for MIPS on kernel 5.4, support for
MIPS was only added with kernel 5.5, other architectures like aarch64
support FORTIFY_SOURCE already since some time.

This patch adds support for FORTIFY_SOURCE to MIPS with kernel 5.4,
kernel 5.10 already supports this and needs no changes.

This backports one patch from kernel 5.5 and one fix from 5.8 to make
fortify source also work on our kernel 5.4.

The changes are not compatible with the
306-mips_mem_functions_performance.patch patch which was also removed
with kernel 5.10, probably because of the same problems. I think it is
not needed anyway as the compiler should automatically optimize the
calls to memset(), memcpy() and memmove() even when not explicitly
telling the compiler to use the build in variant.

This increases the size of an uncompressed kernel by less than 1 KB.

Acked-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 9ffa2f8193)
2021-05-14 23:32:22 +02:00
Shiji Yang
ceeaf0b63d ramips: fix mac addresses of Youku YK1
MAC addresses read from official firmware

        value       location
Wlan    xx 71 de    factory@0x04
Lan     xx 71 dd    factory@0x28
Wan     xx 71 df    factory@0x2e
Label   xx 71 dd    factory@0x28

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
[fix sorting in 02_network, redact commit message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit e57e460dc7)
2021-05-14 23:32:22 +02:00
Baptiste Jonglez
f001bd226c ipq40xx: fix hard_config partition size on MikroTik hAP-ac2
The routerbootparts driver dynamically discovers the location of MikroTik
partitions, but it cannot determine their size (except by extending them
up to the start of the next discovered partition).

The hard_config partition has a default size of 0x1000 in the driver,
while it actually takes 0x2000 on the hAP-ac2.  Set the correct size in
the hAP-ac2 DTS.

On most devices, this isn't a problem as the actual data fits in 0x1000
bytes.  However, some devices have larger data that doesn't fit in 0x1000
bytes.  In any case, all devices seen so far have enough space for a
0x2000 hard_config partition before the start of the dtb_config partition.
With the current 0x1000 size:

0x00000000e000-0x00000000f000 : "hard_config"
0x000000010000-0x000000017bbc : "dtb_config"

With this patch extending the size to 0x2000:

0x00000000e000-0x000000010000 : "hard_config"
0x000000010000-0x000000017bbc : "dtb_config"

Other ipq40xx boards may need the same fix but it needs testing.

References: https://forum.openwrt.org/t/support-for-mikrotik-hap-ac2/23333/324
Acked-by: Thibaut VARÈNE <hacks@slashdirt.org>
Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
(cherry picked from commit 979f406366)
2021-05-14 22:52:40 +02:00
Thibaut VARÈNE
2f0ab93799 generic: platform/mikrotik: release mtd device after use
The code uses get_mtd_device_nm() which must be followed by a call to
put_mtd_device() once the handle is no longer used.

This fixes spurious shutdown console messages such as:
[ 2256.334562] Removing MTD device #7 (soft_config) with use count 1

Reported-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
(cherry picked from commit 4e385a27d6)
2021-05-12 10:14:33 +02:00
Rafał Miłecki
4b89b90d9f kernel: fix parsing fixed subpartitions
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit ed4641e9f1)
2021-05-08 19:29:08 +02:00
Hauke Mehrtens
04579a527a kernel: bump 5.4 to 5.4.117
All updated automatically.

Compile-tested on: x86/64, armvirt/32, ath79/generic
Runtime-tested on: x86/64, armvirt/32, ath79/generic

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-05-07 23:30:57 +02:00
Roger Pueyo Centelles
701d25b551 ipq40xx: add support for MikroTik SXTsq 5 ac
This commit adds support for the MikroTik SXTsq 5 ac (RBSXTsqG-5acD),
an outdoor 802.11ac wireless CPE with one 10/100/1000 Mbps Ethernet
port.

Specifications:
 - SoC: Qualcomm Atheros IPQ4018
 - RAM: 256 MB
 - Storage: 16 MB NOR
 - Wireless: IPQ4018 (SoC) 802.11a/n/ac 2x2:2, 16 dBi antennae
 - Ethernet: IPQ4018 (SoC) 1x 10/100/1000 port, 10-28 Vdc PoE in
 - 1x Ethernet LED (green)
 - 7x user-controllable LEDs
  · 1x power (blue)
  · 1x user (green)
  · 5x rssi (green)

Note:
 Serial UART is probably available on the board, but it has not been
 tested.

Flashing:
 Boot via TFTP the initramfs image. Then, upload a sysupgrade image
 via SSH and flash it normally. More info at the "Common procedures
 for MikroTik products" page https://openwrt.org/toh/mikrotik/common.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
(cherry picked from commit d1f1e5269e)
[Compile and Run Tested]
Signed-off-by: Nick Hainke <vincent@systemli.org>
2021-05-03 14:57:29 +02:00
Robert Marko
3ce7f1e477 ipq40xx: add MikroTik hAP ac2 support
This adds support for the MikroTik RouterBOARD RBD52G-5HacD2HnD-TC
(hAP ac²), a  indoor dual band, dual-radio 802.11ac
wireless AP with integrated omnidirectional antennae, USB port and  five
10/100/1000 Mbps Ethernet ports.

See https://mikrotik.com/product/hap_ac2 for more info.

Specifications:
 - SoC: Qualcomm Atheros IPQ4018
 - RAM: 128 MB
 - Storage: 16 MB NOR
 - Wireless:
   · Built-in IPQ4018 (SoC) 802.11b/g/n 2x2:2, 2.5 dBi antennae
   · Built-in IPQ4018 (SoC) 802.11a/n/ac 2x2:2, 2.5 dBi antennae
 - Ethernet: Built-in IPQ4018 (SoC, QCA8075) , 5x 1000/100/10 port,
             passive PoE in
- 1x USB Type A port

Installation:
Boot the initramfs image via TFTP and then flash the sysupgrade
image using "sysupgrade -n"

Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit faea7becaf)
[Compile Tested]
Signed-off-by: Nick Hainke <vincent@systemli.org>
2021-05-03 14:57:29 +02:00
David Bauer
d7fd690b8c ath79: force SGMII SerDes mode to MAC operation
The mode on the SGMII SerDes on the QCA9563 is 1000 Base-X by default.
This only allows for 1000 Mbit/s links, however when used with an SGMII
PHY in 100 Mbit/s link mode, the link remains dead.

This strictly has nothing to do with the SerDes calibration, however it
is done at the same point in the QCA reference U-Boot which is the
blueprint for everything happening here. As the current state is more or
less a hack, this should be fine.

This fixes the issues outlined above on a TP-Link EAP-225 Outdoor.

Reported-by: Tom Herbers <freifunk@tomherbers.de>
Tested-by: Tom Herbers <freifunk@tomherbers.de>
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit fbbad9a9a6)
2021-05-03 01:39:10 +02:00
Tom Stöveken
62099d98e4 ath79: fix USB power on TP-Link TL-WR810N v1
Before: Kernel reported "usb_vbus: disabling" and the USB was not
        providing power
After:  USB power is switched on, peripheral is powered from the
        device

Signed-off-by: Tom Stöveken <tom@naaa.de>
[squash and tidy up]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit a6f7268dc7)
2021-05-02 14:32:52 +02:00
Hauke Mehrtens
438718b5fb kernel: bump 5.4 to 5.4.114
Removed because in upstream*
  mvebu/patches-5.4/319-ARM-dts-turris-omnia-configure-LED-2--INTn-pin-as-interrupt-pin.patch

Manually rebased*
  generic/backport-5.4/700-v5.5-net-core-allow-fast-GRO-for-skbs-with-Ethernet-heade.patch

Added new backport*
  generic/backport-5.4/050-gro-fix-napi_gro_frags-Fast-GRO-breakage-due-to-IP-a.patch

All others updated automatically.

The new backport was included based on this[1] upstream commit that will be
mainlined soon.  This change is needed because Eric Dumazet's check for
NET_IP_ALIGN (landed in 5.4.114) causes huge slowdowns on drivers which use
napi_gro_frags().

Compile-tested on: x86/64, armvirt/64, ath79/generic
Runtime-tested on: x86/64, armvirt/64, ath79/generic

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2021-05-02 14:32:27 +02:00
Roger Pueyo Centelles
d57e480394 ath79: mikrotik: swap RB922UAGS-5HPaCD eth0/1 MACs
Since support for SFP on the MikroTik RouterBOARD 922UAGS-5HPacD was
added by 4387fe00cb, the MAC addresses for eth0 (Ethernet) and eth1
(SFP) were swapped. This patch fixes the 02_network script to assign MAC
addresses correctly, so they match the label and the vendor's OS.

Tested on a RouterBOARD 922UAGS-5HPacD board.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
(cherry picked from commit 14a95b36b1)
2021-04-30 10:26:34 +02:00
Roger Pueyo Centelles
a524a0dff8 ath79: mikrotik: enable SFP on RB922UAGS-5HPaCD
This patch enables the SFP cage on the MikroTik RouterBOARD 922UAGS-5HPacD.

GPIO16 (tx-disable-gpios) should be governed by the SFP driver to enable
or disable transmission, but no change is observed. Therefore, it is
left as output high to ensure the SFP module is forced to transmit.

Tested on a RouterBOARD 922UAGS-5HPacD board, with a CISCO GLC-LH-SMD
1310nm module and an unbranded GLC-T RJ45 Gigabit module. PC=>router
iperf3 tests deliver 440/300 Mbps up/down, both via regular eth0 port
or SFP port with RJ45 module. Bridge between eth0 and eth1 delivers
950 Mbps symmetric.

Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
(cherry picked from commit 4387fe00cb)
2021-04-30 10:26:34 +02:00
Rui Salvaterra
6f053e5b4f kernel: drop the conntrack rtcache patch
It's in backports-5.4, but it wasn't ever merged. Upstream followed another
approach, with flow offloading, which has much better performance. Drop this
obsolete patch and refresh the kernel patches.

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Acked-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: Felix Fietkau <nbd@nbd.name>
(cherry picked from commit 17576b1b2a)
2021-04-22 09:11:14 +01:00
Bjørn Mork
59980f7aaf realtek: allow writing to "u-boot-env2"
U-Boot uses the "bootpartition" variable stored in
"u-boot-env2" to select the active system partition. Allow
updates to enable system switching from OpenWrt.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
(cherry picked from commit 11d24ffe96)
2021-04-18 12:06:57 +02:00
Stijn Segers
41a8bea72e realtek: rename partitions in Netgear DTSI
Switch the Netgear DTSI for the Realtek target from the OEM partition
naming scheme to accepted OpenWrt naming practices. A quick git grep for
'u-boot-env' e.g. in the OpenWrt tree turns up almost 500 hits whereas
grepping for 'bdinfo' (the OEM equivalent) returns a meagre 14.

Signed-off-by: Stijn Segers <foss@volatilesystems.org>
(cherry picked from commit 1601b39b61)
2021-04-18 12:06:53 +02:00
Adrian Schmutzler
81c1e0ab00 realtek: add ZYXEL_VERS to DEVICE_VARS
Otherwise, the last defined value will be set for all devices.

Fixes: c6c8d597e1 ("realtek: Add generic zyxel_gs1900 image definition")

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit 851dadc257)
2021-04-18 12:06:49 +02:00
Bjørn Mork
37920d6ee1 realtek: enable SerDes NWAY and SGMII negotiation
This allows copper SFPs to negotiate speeds lower than 1gig.

Acked-by: Birger Koblitz <mail@birger-koblitz.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
(cherry picked from commit 963b2ae702)
2021-04-18 12:06:45 +02:00
Bjørn Mork
037dc6b251 realtek: enabled Marvell and Realtek PHYs
The rtl83xx-phy driver is necessary for proper configuration of the
PHYs if U-Boot hasn't done that.

1000Base-T SFPs often contains a Marvell 88E1111 and will not work
without this driver. Include it by default to support copper SFPs.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
(cherry picked from commit 07bf5aaa4c)
2021-04-18 12:06:41 +02:00
Bjørn Mork
66e470594a realtek: enable HWMON for SFP sensors
This adds SFP sensors as a hwmon device, allowing readout of
temperatures, DOM and other sensor readings available from the
SFP.  Example from a ZyXEL GS1900-10HP with a DOM capable
1000Base-SX SFP:

root@gs1900-10hp:~# grep . /sys/class/hwmon/hwmon0/*
/sys/class/hwmon/hwmon0/curr1_crit:90
/sys/class/hwmon/hwmon0/curr1_crit_alarm:0
/sys/class/hwmon/hwmon0/curr1_input:4
/sys/class/hwmon/hwmon0/curr1_label:bias
/sys/class/hwmon/hwmon0/curr1_lcrit:0
/sys/class/hwmon/hwmon0/curr1_lcrit_alarm:0
/sys/class/hwmon/hwmon0/curr1_max:85
/sys/class/hwmon/hwmon0/curr1_max_alarm:0
/sys/class/hwmon/hwmon0/curr1_min:0
/sys/class/hwmon/hwmon0/curr1_min_alarm:0
/sys/class/hwmon/hwmon0/in0_crit:3795
/sys/class/hwmon/hwmon0/in0_crit_alarm:0
/sys/class/hwmon/hwmon0/in0_input:3317
/sys/class/hwmon/hwmon0/in0_label:VCC
/sys/class/hwmon/hwmon0/in0_lcrit:2805
/sys/class/hwmon/hwmon0/in0_lcrit_alarm:0
/sys/class/hwmon/hwmon0/in0_max:3465
/sys/class/hwmon/hwmon0/in0_max_alarm:0
/sys/class/hwmon/hwmon0/in0_min:3135
/sys/class/hwmon/hwmon0/in0_min_alarm:0
/sys/class/hwmon/hwmon0/name:sfp_p10
/sys/class/hwmon/hwmon0/power1_crit:708
/sys/class/hwmon/hwmon0/power1_crit_alarm:0
/sys/class/hwmon/hwmon0/power1_input:259
/sys/class/hwmon/hwmon0/power1_label:TX_power
/sys/class/hwmon/hwmon0/power1_lcrit:89
/sys/class/hwmon/hwmon0/power1_lcrit_alarm:0
/sys/class/hwmon/hwmon0/power1_max:501
/sys/class/hwmon/hwmon0/power1_max_alarm:0
/sys/class/hwmon/hwmon0/power1_min:126
/sys/class/hwmon/hwmon0/power1_min_alarm:0
/sys/class/hwmon/hwmon0/power2_crit:1259
/sys/class/hwmon/hwmon0/power2_crit_alarm:0
/sys/class/hwmon/hwmon0/power2_input:404
/sys/class/hwmon/hwmon0/power2_label:RX_power
/sys/class/hwmon/hwmon0/power2_lcrit:6
/sys/class/hwmon/hwmon0/power2_lcrit_alarm:0
/sys/class/hwmon/hwmon0/power2_max:794
/sys/class/hwmon/hwmon0/power2_max_alarm:0
/sys/class/hwmon/hwmon0/power2_min:10
/sys/class/hwmon/hwmon0/power2_min_alarm:0
/sys/class/hwmon/hwmon0/temp1_crit:100000
/sys/class/hwmon/hwmon0/temp1_crit_alarm:0
/sys/class/hwmon/hwmon0/temp1_input:22547
/sys/class/hwmon/hwmon0/temp1_label:temperature
/sys/class/hwmon/hwmon0/temp1_lcrit:-50000
/sys/class/hwmon/hwmon0/temp1_lcrit_alarm:0
/sys/class/hwmon/hwmon0/temp1_max:85000
/sys/class/hwmon/hwmon0/temp1_max_alarm:0
/sys/class/hwmon/hwmon0/temp1_min:-40000
/sys/class/hwmon/hwmon0/temp1_min_alarm:0
/sys/class/hwmon/hwmon0/uevent:OF_NAME=sfp-p10
/sys/class/hwmon/hwmon0/uevent:OF_FULLNAME=/sfp-p10
/sys/class/hwmon/hwmon0/uevent:OF_COMPATIBLE_0=sff,sfp
/sys/class/hwmon/hwmon0/uevent:OF_COMPATIBLE_N=1

Tested-by: Birger Koblitz <mail@birger-koblitz.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
(cherry picked from commit 2a912fb63a)
2021-04-18 12:06:35 +02:00
Bjørn Mork
ec7cd3808d realtek: re-enable sfp driver for ZyXEL GS1900-10HP
There is no need to define a static link or a phy for the sfp
ports.  Using phy-mode and managed properties to  describe the
link to the sfp phy.

We have to keep the now unconnected virtual "phys" because the
switch  driver uses their "phy-is-integrated" property to figure
out which ports to enable as fibre ports.

Acked-by: Birger Koblitz <mail@birger-koblitz.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
(cherry picked from commit e8d391bd46)
2021-04-18 12:06:31 +02:00
Bjørn Mork
d9b3edef4d realtek: need to handle PHY_INTERFACE_MODE_NA for sfps
From the validate docs in include/linux/phylink.h:

 When state->interface is PHY_INTERFACE_MODE_NA, phylink expects the
 MAC driver to return all supported link modes.

Tested-by: Birger Koblitz <mail@birger-koblitz.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
(cherry picked from commit 785d830e88)
2021-04-18 12:06:27 +02:00
Bjørn Mork
209f2386a5 realtek: fix link-state interrupt
This bug was the root cause for the failing sfp driver.

Acked-by: Birger Koblitz <mail@birger-koblitz.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
(cherry picked from commit b8e473d18c)
2021-04-18 12:06:23 +02:00
Hauke Mehrtens
0fc789b724 realtek: Add ZyXEL GS1900-8
The ZyXEL GS1900-8 is a 8 port switch without any PoE functionality or
SFP ports, but otherwise similar to the other GS1900 switches.

Specifications
--------------
* Device:    ZyXEL GS1900-8 v1.2
* SoC:       Realtek RTL8380M 500 MHz MIPS 4KEc
* Flash:     Macronix MX25L12835F 16 MiB
* RAM:       Nanya NT5TU128M8GE-AC 128 MiB DDR2 SDRAM
* Ethernet:  8x 10/100/1000 Mbit
* LEDs:      1 PWR LED (green, not configurable)
             1 SYS LED (green, configurable)
             8 ethernet port status LEDs (green, SoC controlled)
* Buttons:   1 on-off glide switch at the back (not configurable)
             1 reset button at the right side, behind the air-vent
               (not configurable)
             1 reset button on front panel (configurable)
* Power      12V 1A barrel connector
* UART:      1 serial header (JP2) with populated standard pin connector on
             the left side of the PCB, towards the back. Pins are labelled:
             + VCC (3.3V)
             + TX (really RX)
             + RX (really TX)
             + GND
             the labelling is done from the usb2serial connector's point of
             view, so RX/ TX are mixed up.

Serial connection parameters for both devices: 115200 8N1.

Installation
------------
Instructions are identical to those for the GS1900-10HP and GS1900-8HP.

* Configure your client with a static 192.168.1.x IP (e.g. 192.168.1.10).
* Set up a TFTP server on your client and make it serve the initramfs
  image.
* Connect serial, power up the switch, interrupt U-boot by hitting the
  space bar, and enable the network:
  > rtk network on
* Since the GS1900-10HP is a dual-partition device, you want to keep the
  OEM firmware on the backup partition for the time being. OpenWrt can
  only boot off the first partition anyway (hardcoded in the DTS). To
  make sure we are manipulating the first partition, issue the following
  commands:
  > setsys bootpartition 0
  > savesys
* Download the image onto the device and boot from it:
  > tftpboot 0x84f00000 192.168.1.10:openwrt-realtek-generic-zyxel_gs1900-8-initramfs-kernel.bin
  > bootm
* Once OpenWrt has booted, scp the sysupgrade image to /tmp and flash it:
  > sysupgrade /tmp/openwrt-realtek-generic-zyxel_gs1900-8-squashfs-sysupgrade.bin

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit e6ba970b6e)
2021-04-18 12:06:18 +02:00
Hauke Mehrtens
71131cb9c5 realtek: Add generic zyxel_gs1900 image definition
Add a new common device definition for the Zyxel GS1900 line of
switches.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit c6c8d597e1)
2021-04-18 12:06:13 +02:00
Bjørn Mork
ddd0176255 realtek: drop ethtool log noise
Demote a number of debugging printk's to pr_debug to avoid log
nosie.  Several of these functions are called as a result of
userspace activity.  This can cause a lot of log noise when
userspace does periodic polling.

Most of this could probably be removed completely, but let's
keep it for now since these drivers are still in development.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
(cherry picked from commit ba220ad2fd)
2021-04-18 12:06:09 +02:00
DENG Qingfang
6552f31acd ramips: mt7530 swconfig: fix race condition in register access
The mt7530_{r,w}32 operation over MDIO uses 3 mdiobus operations and
does not hold a lock, which causes a race condition when multiple
threads try to access a register, they may get unexpected results.

To avoid this, handle the MDIO lock manually, and use the unlocked
__mdiobus_{read,write} in the critical section.

This fixes the "Ghost VLAN" artifact[1] in MT7530/7621 when the VLAN
operation and the swconfig LED link status poll race between each other.

[1] https://forum.openwrt.org/t/mysterious-vlan-ids-on-mt7621-device/64495

Signed-off-by: DENG Qingfang <dqfext@gmail.com>
(cherry picked from commit f99c9cd9c4)
2021-04-18 12:05:04 +02:00
David Bauer
cc6ad94fb9 ath79: fix 10 Mbit PLL data for UniFi AC
Fix the PLL register value for 10 Mbit/s link modes on the UniFi AC Lite
/ Mesh / LR. Otherwise, 10 Mbit/s links do not transfer data.

Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit 956407292d)
2021-04-18 12:05:00 +02:00
David Bauer
8437c24f09 ath79: fix 10 Mbit PLL data for TP-Link EAP2xx
Fix the PLL register value for 10 Mbit/s link modes on TP-Link EAP
boards using a AR8033 SGMII PHY.

Otherwise, 10 Mbit/s links do not transfer data.

Reported-by: Tom Herbers <freifunk@tomherbers.de>
Tested-by: Tom Herbers <freifunk@tomherbers.de>
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit bbff6239e2)
2021-04-18 12:04:56 +02:00
David Bentham
d33f4f8565 ramips: reduce spi-max-frequency for Xiaomi MI Router 4AG
Reduce spi-max-frequency for Xiaomi MI Router 4AG model

Xiaomi MI Router 4AG MTD uses two flash chips (no specific on router versions when produced from factory) - GD25Q128C and W25Q128BV.

These flash chips are capable of high frequency, but due to poor board design or manufacture process.

We are seeing the following errors in the linux kernel bootup:

`spi-nor spi0.0: unrecognized JEDEC id bytes: cc 60 1c cc 60 1c
 spi-nor: probe of spi0.0 failed with error -2`

This causes the partitions not to be detected

`VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6`

Then creates a bootloop and a bricked router.

The solution to limit this race condition is to reduce the frequency from 80 mhz to 50 mhz.

Signed-off-by: David Bentham <db260179@gmail.com>
(cherry picked from commit 17e690017d)
2021-04-18 12:04:38 +02:00