GPIO3, to which the user LED is connected on RB911-Lite boards seems to
still sink current, even when driven high. Enabling open drain for this
pin fixes this behaviour and gets rid of the glow when LED is set to
off, so enable it.
Fixes: 43c7132bf8 ("ath79: add support for MikroTik RouterBOARD 911 Lite2/Lite5")
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
Forward-port from ar71xx target the board introduced in commit
eb9e3651dd (" ar71xx: add support for the MikroTik RB911-2Hn/5Hn
boards"). Citing:
The patch adds support for the MikroTik RB911-2Hn (911 Lite2)
and the RB911-5Hn (911 Lite5) boards:
https://mikrotik.com/product/RB911-2Hnhttps://mikrotik.com/product/RB911-5Hn
The two boards are using the same hardware design, the only difference
between the two is the supported wireless band.
Specifications:
* SoC: Atheros AR9344 (600MHz)
* RAM: 64MiB
* Storage: 16 MiB SPI NOR flash
* Ethernet: 1x100M (Passive PoE in)
* Wireless: AR9344 built-in wireless MAC, single chain
802.11b/g/n (911-2Hn) or 802.11a/g/n (911-5Hn)
Notes:
* Older versions of these boards might be equipped with a NAND
flash chip instead of the SPI NOR device. Those boards are not
supported (yet).[1]
* The MikroTik RB911-5HnD (911 Lite5 Dual) board also uses the
same hardware. Support for that can be added later with little
effort probably.[2]
End of citation.
Follow intallation instruction from that commit message, using
openwrt-ath79-mikrotik-mikrotik_routerboard-911-lite-initramfs-kernel.bin
and
openwrt-ath79-mikrotik-mikrotik_routerboard-911-lite-squashfs-sysupgrade.bin
images found in ath79/mikrotik directory. Be advised that the board
accepts 10-30 V on PoE input.
Known issues
Compared to ar71xx target image, there is still small leak of current to
user LED, which makes it lit, although weaker, even if brightness is set
to 0. The cause of that is still unknown.
1. https://github.com/openwrt/openwrt/pull/3652
2. RB911-5HnD should work with this commit or with [1], depending on
what flash topology was used.
Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
