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ath79: ZTE MF286[A,R]: add "Power button blocker" GPIO switch

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ZTE MF286A and MF286R feature a "power switch override" GPIO in stock
firmware as means to prevent power interruption during firmware update,
especially when used with internal battery.
To ensure that this GPIO is
properly driven as in stock firmware, configure it with userspace GPIO
switch.

It was observed that on some units, the modem would not be
restarted together with the board itself on reboot, this should help
with that as well.

Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
This commit is contained in:
Lech Perczak
2022-05-14 14:50:02 +02:00
committed by Christian Lamparter
parent af425e4221
commit 1fabeeb799
1 changed files with 20 additions and 0 deletions
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20
target/linux/ath79/nand/base-files/etc/board.d/03_gpio_switches Normal file
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@@ -0,0 +1,20 @@
#
# Copyright (C) 2022 OpenWrt.org
#
. /lib/functions/uci-defaults.sh
board_config_update
board=$(board_name)
case "$board" in
zte,mf286a|\
zte,mf286r)
ucidef_add_gpio_switch "power_btn_block" "Power button blocker" "20" "0"
;;
esac
board_config_flush
exit 0