Some MT7915 devices need to load the second part of the eeprom to
work properly. The mt76 driver is not yet ready to read the pre-cal
data via the NVMEM cell. Therefore, partially revert commit to fix
the device probe issue on some devices.
P.S.
Except for D-Link and Ubnt devices, It is still uncertain whether
pre-cal data is required for other devices in the patch.
This partially reverts commit 9ac891f8c4.
Fixes: https://github.com/openwrt/openwrt/issues/13700
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
It was brought to attention the Archer AX23 v1 fails to read jffs2 data
from time to time. While this is not reproducible on my unit, it is on
others.
Reducing the SPI frequency does the trick. While it worked with at lest
40 MHz, opt for the cautious side and choose a save frequency of 25 MHz.
Apply the same treatment to the Mercusys MR70X which uses a similar
design just in case.
Signed-off-by: David Bauer <mail@david-bauer.net>
Hardware
--------
CPU: MediaTek MT7621 DAT
RAM: 128MB DDR3 (integrated)
FLASH: 16MB SPI-NOR ()
WiFi: MediaTek MT7905 + MT7975 (2.4 / 5 DBDC) 802.11ax
SERIAL: 115200 8N1
LEDs - (3V3 - GND - RX - TX) - ETH ports
Installation
------------
Upload the factory image using the Web-UI.
Web-Recovery
------------
The router supports a HTTP recovery mode by holding the reset-button
when powering on. The interface is reachable at 192.168.0.1 and supports
installation using the factory image.
Signed-off-by: David Bauer <mail@david-bauer.net>
