Commit Graph

3273 Commits

Author SHA1 Message Date
Tianling Shen
55ab7dacb6
Merge Official Source
Signed-off-by: Tianling Shen <cnsztl@gmail.com>
2021-04-05 19:41:49 +08:00
Tianling Shen
509af1fdf6
ramips: k2p: use upstream mt76 driver by default
Just like what I said in 2514225e14, luci-app-mtwifi doesn't work well.

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
2021-04-05 08:23:50 +08:00
Kevin Darbyshire-Bryant
438e88e672 kernel: bump 5.10 to 5.10.27
Use update_kernel to refresh all patches, required manual updates to:

610-netfilter_match_bypass_default_checks.patch
611-netfilter_match_bypass_default_table.patch
762-net-bridge-switchdev-Refactor-br_switchdev_fdb_notif.patch
764-net-bridge-switchdev-Send-FDB-notifications-for-host.patch

Run-tested: x86_64

Nothing screamed out but any funny business with linux bridging should
suspect this update first.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-04-03 21:07:22 +01:00
Shiji Yang
dfc9044fad ramips: fix IMAGE_SIZE of HC5x6: fix image size of HC5x61
"firmware" partition size defined in the device tree file is 0xf70000,
so the right IMAGE_SIZE is 15808k

Fixes: df1e5d6463 ("ramips: fix partition layout of hiwifi hc5x61")
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2021-04-03 18:56:02 +02:00
Daniel Engberg
e83f7e5d76 ramips: Fix booting on MQmaker WiTi board
This fixes the dreaded "lzma error 1" also reported on similar devices
Ref: https://bugs.openwrt.org/index.php?do=details&task_id=3057

Fixes: FS#3057
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
2021-04-03 18:56:02 +02:00
René van Dorst
12f3d1466a ramips: Fix booting on MTC WR1201
This fixes the dreaded "lzma error 1" also reported on similar devices
Ref: https://bugs.openwrt.org/index.php?do=details&task_id=3057

Fixes: FS#3057
Signed-off-by: René van Dorst <opensource@vdorst.com>
2021-04-03 18:56:02 +02:00
Ilya Lipnitskiy
a86c3fd800 ramips: mt7620: ralink-i2s: fix modpost error
Fixes the following error when building without CONFIG_MODULE_STRIPPED:
  FATAL: modpost: sound/soc/ralink/snd-soc-ralink-i2s: struct
  of_device_id is not terminated with a NULL entry!

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-31 01:10:01 +01:00
Rui Salvaterra
070ead4d4a ramips/mt7621: enable support for cpuidle
MIPS Coherent Processor Systems (CPS), which include the MT7621 SoC, support
deep sleep idle states and have a specific cpuidle driver for them.
Enable support for it, while also switching from constant timer ticks to the
idle dynticks model, with the TEO governor.

Run-tested on a Redmi AC2100.

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
2021-03-31 00:58:49 +01:00
Rui Salvaterra
9c3b2d7ff7 ramips/mt7621: drop the timer recalibration patch
We've been carrying this patch for many years [1], in order to fix a timer
calibration issue on MT7621. Turns out, after retesting with a recent kernel
(Linux 5.10), the system works perfectly fine without it (no rcu_sched stalls
or inconsistent BogoMIPS values across CPUs).

Manually refreshed:
322-mt7621-fix-cpu-clk-add-clkdev.patch
323-mt7621-memory-detect.patch

[1] https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=6f4a903533361a2906a4d94ac6f597cd9c6c47bc

Suggested-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Tested-by: Donald Hoskins <grommish@gmail.com>
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
2021-03-31 00:58:49 +01:00
Rui Salvaterra
4b2e4518ac ramips/mt7621: drop the weak reordering patch
In order to fix random hangs on MT7621, we've been selecting
WEAK_REORDERING_BEYOND_LLSC for years [1]. However, these random hangs have been
most likely caused by an oversight in the MIPS implementation of the kernel
memory consistency model, which has already been fixed for some time (and
backported to stable) [2].

Manually refreshed:
321-mt7621-timer.patch

[1] https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=5c971cd6fdd7298a2017bdb6bea870088eddb8b9
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/mips?h=linux-5.4.y&id=42344113ba7a1ed7b5654cd5270af0d5698d8521

Suggested-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Tested-by: Donald Hoskins <grommish@gmail.com>
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
2021-03-31 00:58:49 +01:00
Tianling Shen
e658021d9e
Merge Official Source
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
2021-03-28 11:25:54 +08:00
Shiji Yang
b88d2850c6 ramips: correct switch config of Youku yk1
There are only two lan ports and one wan port on Youku yk1

Fixes: e9baf8265b ("ramips: add support for Youku YK1")

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
[add Fixes:]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-27 16:54:15 +01:00
Tianling Shen
0ee01d71cd
Merge Official Source
Closes: #332

Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
2021-03-26 18:37:54 +08:00
Kevin Darbyshire-Bryant
eb964298b3 kernel: bump 5.10 to 5.10.24
Straightforward refresh of patches using update_kernel.

Run tested: x86_64 (apu2)

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-03-24 11:36:31 +00:00
Shiji Yang
bf7ddb18f1 ramips: speed up spi frequency for Youku YK-L1
Youku YK-L1 has a huge storage space up to 32 MB. It is better to
use a higher spi clock to read or write serial nor flash chips.
Youku YK-L1 has Winbond w25q256fvfg on board that can support
104 MHz spi clock so 48 MHz is safe enough.
The real frequency can only be sysclk(580MHz ) /3 /(2^n) so 80 MHz
defined in dts file will set only 48 MHz in spi bus.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2021-03-22 20:54:34 +01:00
Tianling Shen
18e21aff8f
Merge Official Source
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
2021-03-22 16:35:07 +08:00
John Audia
2c81b16964 kernel: bump 5.4 to 5.4.106
Ran update_kernel.sh in a fresh clone without any existing toolchains.

Manually rebased:
  bcm27xx/950-0993-xhci-quirks-add-link-TRB-quirk-for-VL805.patch
  layerscape/701-net-0231-enetc-Use-DT-protocol-information-to-set-up-the-port.patch

Build system: x86_64
Build-tested: ipq806x/R7800
Run-tested: ipq806x/R7800

No dmesg regressions, everything functional

Signed-off-by: John Audia <graysky@archlinux.us>
[remove accidental whitespace edit]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-21 22:45:20 +01:00
INAGAKI Hiroshi
b3ca1f30ef ramips: add support for ELECOM WRC-1750GST2
ELECOM WRC-1750GST2 is a 2.4/5 GHz band 11ac (Wi-Fi 5) router, based on
MT7621A.

Specification:

- SoC		: MediaTek MT7621A
- RAM		: DDR3 256 MiB (NT5CC128M16JR-EK)
- Flash		: SPI-NOR 32 MiB (MX25L25645GMI-08G)
- WLAN		: 2.4/5 GHz 3T3R (2x MediaTek MT7615)
- Ethernet	: 10/100/1000 Mbps x5
  - Switch	: MediaTek MT7530 (SoC)
- LEDs/Keys	: 4x/6x (2x buttons, 1x slide-switch)
- UART		: through-hole on PCB
  - J4: 3.3V, GND, TX, RX, from ethernet port side
  - 57600n8
- Power		: 12 VDC, 1.5 A

Flash instruction using factory image:

1. Boot WRC-1750GST2 normally with "Router" mode
2. Access to "http://192.168.2.1/" and open firmware update page
   ("ファームウェア更新")
3. Select the OpenWrt factory image and click apply ("適用") button
4. Wait ~120 seconds to complete flashing

MAC addresses:

LAN	: 04:AB:18:xx:xx:23 (Factory, 0xE000 (hex))
WAN	: 04:AB:18:xx:xx:24 (Factory, 0xE006 (hex))
2.4GHz	: 04:AB:18:xx:xx:25 (Factory, 0x4    (hex))
5GHz	: 04:AB:18:xx:xx:26 (Factory, 0x8004 (hex))

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
2021-03-21 22:45:20 +01:00
Shiji Yang
df6154848a ramips: create shared DTSI for MT7620 Phicomm K2x series devices
Improve compatibility of the device tree include file. Now a new .dtsi
file will support both PSG1218A, PSG1218B and K2G.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
[improve commit title, rebase]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-21 22:45:20 +01:00
Shiji Yang
c36e47c5da ramips: increase SPI frequency for Phicomm series devices
From many teardown image in the internet, I find Phicomm K1/k2 series use
Winbond W25Q64/W25Q128 or GigaDevice GD25Q64/GD25Q128 Flash chips. both of
them support 100+ MHz clock spi operate and fast-read instruction. PSG1218
with W25x or GD25x has been tested and it can run well in OpenWrt v19.07.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
[improve commit title]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-21 22:45:20 +01:00
Shiji Yang
d160b2c824 ramips: increase SPI frequency for HIWIFI HC5x61 devices
HIWIFI HC5x61 devices support high speed spi clock up to 100+ MHz.
So set spi frequency to 80 MHz here (Due to frequency division the
real clock is 48 MHz).
I have tested HC5661 and it can run well in OpenWrt v19.07.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
[adjust commit title and wrap message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-21 22:45:20 +01:00
Ilya Lipnitskiy
f65b0afadb ramips: move spi-nor-add-gd25q512 patch to generic
A SPI NOR flash should not be target-specific, so move it to generic in
case another platform needs to use it.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-19 01:25:26 +01:00
Lech Perczak
410fb05b44 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.
## Booting image at bc080000 ...
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>
2021-03-19 01:25:26 +01:00
Shiji Yang
a94a20373b ramips: improve GPIO pin control for HC5x61
HC5661 does not have USB port, remove usb power control pin.
HC5x61 do not have LAN LEDs, remove ethernet LED control pin.
Only HC5861 has PA in 2.4G channel.

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2021-03-19 01:25:26 +01:00
AmadeusGhost
5726bab29c Merge Official Source 2021-03-18 23:36:35 +08:00
David Bauer
ac5675ec8f ramips: fix broken UniFi 6 Lite image
Ubiquiti's own bootloader expects the configuration mode to be present
with a "@" instead of a "-" for the sperator character. Otherwise
booting of the image fails.

Signed-off-by: David Bauer <mail@david-bauer.net>
2021-03-18 00:54:25 +01:00
Tianling Shen
2de4490a61
Merge Official Source
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
2021-03-14 23:46:37 +08:00
Kabuli Chana
1cd098784e kernel: bump 5.10 to 5.10.23
update kernel to 5.10.23, rebase patches, deleted upstreamed patch:

target/linux/generic/backport-5.10/830-v5.12-0001-net-usb-qmi_wwan-support-ZTE-P685M-modem.patch

compile / test - mvebu / mamba, rango

Signed-off-by: Kabuli Chana <newtownBuild@gmail.com>
[refresh again]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-13 17:06:42 +01:00
John Audia
e7fa97b326 kernel: bump 5.4 to 5.4.105
Ran update_kernel.sh in a fresh clone without any existing toolchains.

Removed upstreamed generic-backports:
  830-v5.12-0001-net-usb-qmi_wwan-support-ZTE-P685M-modem.patch
  831-v5.9-usbip-tools-fix-build-error-for-multiple-definition.patch
  755-v5.8-net-dsa-add-GRO-support-via-gro_cells.patch

Build system: x86_64
Build-tested: ipq806x/R7800
Run-tested: ipq806x/R7800

No dmesg regressions, everything functional

Signed-off-by: John Audia <graysky@archlinux.us>
Tested-by: Curtis Deptuck <curtdept@me.com> [x86/64]
[squash patches]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-13 17:06:35 +01:00
Tianling Shen
47312bd177
Merge Official Source
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
2021-03-07 11:44:06 +08:00
Adrian Schmutzler
9397b22df1 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>
2021-03-06 12:38:38 +01:00
Adrian Schmutzler
85b1f4d8ca treewide: remove execute bit and shebang from board.d files
So far, board.d files were having execute bit set and contained a
shebang. However, they are just sourced in board_detect, with an
apparantly unnecessary check for execute permission beforehand.

Replace this check by one for existance and make the board.d files
"normal" files, as would be expected in /etc anyway.

Note:

This removes an apparantly unused '#!/bin/sh /etc/rc.common' in
target/linux/bcm47xx/base-files/etc/board.d/01_network

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-06 11:30:06 +01:00
Ilya Lipnitskiy
b021642cac ramips: 5.10: refresh configs
Run-tested on Ubiquiti EdgeRouter X.

Compile tested on all other subtargets.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-06 11:24:12 +01:00
Ilya Lipnitskiy
10267e1729 ramips: 5.10: port and refresh patches, ralink drv
Enable testing kernel.

Fix compile errors by using new kernel APIs.

Fix fuzz by manually editing patches to ensure the code goes in the
right place.

For 721-NET-no-auto-carrier-off-support.patch, revert upstream commit
a307593a6 to keep the OpenWrt ralink driver operational.

Add mt7621-pci-phy patch to select REGMAP_MMIO as discussed in PR #3693
and #3952.

Run automatic quilt refresh on the rest.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-06 11:24:12 +01:00
Ilya Lipnitskiy
ef1e652016 ramips: 5.10: rename patches to follow guide
Rename patches to follow the 3-digit classification from the OpenWrt
Developer Guide.

https://openwrt.org/docs/guide-developer/build-system/use-patches-with-buildsystem#naming_patches

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-06 11:24:12 +01:00
Ilya Lipnitskiy
3149d8e7be ramips: 5.10: delete upstreamed patches
0098-disable_cm.patch is not needed because upstream fixed CM handling.

The rest are straightforward removals of upstreamed patches.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-06 11:24:12 +01:00
Ilya Lipnitskiy
eda836e390 ramips: 5.10: copy patches from 5.4
Strict copy, no changes made.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-06 11:24:12 +01:00
Ilya Lipnitskiy
a9966793e8 ramips: copy config-5.4 to config-5.10
Strict copy, no changes made.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-06 11:24:12 +01:00
Adrian Schmutzler
cc4ee2eeb4 Revert "ramips: add support for kernel 5.10"
This reverts commit b4aad29a1d.

This was accidentally folded into a single commit. Remove it and
apply it properly again.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2021-03-06 11:23:38 +01:00
AmadeusGhost
8e1125c340 Merge Official Source 2021-03-06 12:05:05 +08:00
Ilya Lipnitskiy
2629d2d5b1 apm821xx, mt7621, oxnas, rockchip, zynq: remove PLUGIN_HOSTCC
This config symbol should not be defined in target configs.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-06 03:52:33 +00:00
Ilya Lipnitskiy
b4aad29a1d
ramips: add support for kernel 5.10
Enable testing kernel.

Delete upstreamed patches:
 0098-disable_cm.patch can be dropped, upstream fixed CM handling.

Fix compile errors by using new kernel APIs.

Fix fuzz by manually editing patches to ensure the code goes in the
right place.

For 721-NET-no-auto-carrier-off-support.patch, revert upstream commit
a307593a6 to keep the OpenWrt ralink driver operational.

Add mt7621-pci-phy patch to select REGMAP_MMIO as discussed in PR #3693
and #3952.

Rename patches to follow the 3-digit classification from the OpenWrt
Developer Guide.

Run automatic quilt refresh.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-05 23:55:51 +00:00
Ilya Lipnitskiy
38ba1f9b4c
ramips: 5.4: refresh configs
Automatic refresh by running make kernel_oldconfig on each target.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-05 23:55:46 +00:00
Ilya Lipnitskiy
58ad113087 ramips: rename mtk-hsdma to hsdma-mt7621
Follows upstream rename:
https://lore.kernel.org/driverdev-devel/20210130034507.2115280-1-ilya.lipnitskiy@gmail.com/

Fixes ramips builds on 5.4.102

Cc: John Audia <graysky@archlinux.us>
Cc: David Bauer <mail@david-bauer.net>
Cc: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
2021-03-04 23:43:02 -10:00
Jason A. Donenfeld
196f3d586f kernel-5.4: bump to 5.4.102 and refresh patches
5.4.102 backported a lot of stuff that our WireGuard backport already
did, in addition to other patches we had, so those patches were
removed from that part of the series. In the process other patches were
refreshed or reworked to account for upstream changes.

This commit involved `update_kernel.sh -v -u 5.4`.

Cc: John Audia <graysky@archlinux.us>
Cc: David Bauer <mail@david-bauer.net>
Cc: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-03-04 22:06:53 +01:00
AmadeusGhost
2fabe3d8ac Merge Official Source 2021-03-01 12:05:16 +08:00
Shiji Yang
df1e5d6463 ramips: fix partition layout of hiwifi hc5x61
Changes:
 * Increase "oem" partition size from 0x10000 to 0x20000
 * Correct partition lables, synchronize with official firmware

Evidence:
It should be the same as hiwifi hc5x61a and the fact indeed the
case. Here is part of dmesg boot log read from official firmware:
[    1.470000] Creating 7 MTD partitions on "raspi":
[    1.470000] 0x000000000000-0x000000030000 : "u-boot"
[    1.480000] 0x000000030000-0x000000040000 : "hw_panic"
[    1.490000] 0x000000040000-0x000000050000 : "Factory"
[    1.490000] 0x000000fc0000-0x000000fe0000 : "oem"
[    1.500000] 0x000000fe0000-0x000000ff0000 : "bdinfo"
[    1.510000] 0x000000ff0000-0x000001000000 : "backup"
[    1.510000] 0x000000050000-0x000000fc0000 : "firmware"

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
2021-03-01 00:34:23 +01:00
AmadeusGhost
82816f57c4 Merge Official Source 2021-02-28 12:09:11 +08:00
Lech Perczak
59d065c9f8 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>
2021-02-26 13:57:54 +01:00
AmadeusGhost
14d19b5644 Merge Official Source 2021-02-24 12:00:10 +08:00