openwrt/target/linux/mediatek/image
Daniel Pawlik eb82cd3c6d mediatek: device tree overlay for BPI-R4 with BE14 module
Some Banana Pi BPI-R4 BE14 WiFi modules are shipped with zeroed
tx_power fields in EEPROM (2G/5G/6G). This leads to low transmit power
on affected bands.
This overlay provides known-good EEPROM data (including correct tx_power
values for 2G/5G/6G bands) dumped from a working BE14 module.

To enable BE14 overlay, add into u-boot bootconf_extra
parameter: 'mt7988a-bananapi-bpi-r4-wifi-be14'.
You can use example script:

    overlay="mt7988a-bananapi-bpi-r4-wifi-be14"
    current="$(fw_printenv -n bootconf_extra 2>/dev/null)"
    if [ -n "${current}" ]; then
        fw_setenv bootconf_extra "${current}#${overlay}"
    else
        fw_setenv bootconf_extra "${overlay}"
    fi

Earlier proposal proposed in [1] was fallback to default values if
invalid EEPROM content is detected.

[1] https://github.com/openwrt/openwrt/pull/19503/

Fixes: https://github.com/openwrt/openwrt/issues/17489
Signed-off-by: Daniel Pawlik <pawlik.dan@gmail.com>
(cherry picked from commit 561e3cf678)
Link: https://github.com/openwrt/openwrt/pull/22842
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2026-04-12 22:19:48 +02:00
..
filogic.mk mediatek: device tree overlay for BPI-R4 with BE14 module 2026-04-12 22:19:48 +02:00
gen_scatterfile.sh target: use SPDX license identifiers on scripts 2021-02-10 15:47:23 +01:00
Makefile mediatek: add support for EROFS 2025-11-18 12:18:02 +01:00
mt7622.mk mediatek: add support for AsiaRF AP7622-WH1 2025-09-18 23:28:59 +02:00
mt7623.mk mediatek: fix build failure of mt7623/mt7629 using kernel 6.6 2024-03-16 15:25:05 +08:00
mt7629.mk mediatek: stage mt7622/mt7629 rfb u-boot images to bin folder 2025-07-19 02:59:16 +01:00