This adds "syscon" to the compatible properties for the eth0/eth1 nodes
in ar7100.dtsi.
Without this, a kernel panic is encountered on boot with some ar7100
boards. This for some reason wasn't an issue for the WNDR3800, which
uses a Realtek switch chipset, but the panic was encountered on the
RouterStation Pro (using an AR8216 switch) and some other boards that
haven't yet been merged.
The panic message mentions an unaligned access and happens in
ag71xx_mdio_probe in drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c.
Even if the unaligned access is fixed, the ag71xx_mdio probe still fails
without the "syscon" property.
This was already being worked around in
ar7161_ubnt_routerstation-pro.dts by overriding the compatible property,
so this commit removes that as well.
All of the other ath79 .dtsi already have this property, so no changes
are needed elsewhere.
Signed-off-by: Matt Merhar <mattmerhar@protonmail.com>
This adds a shared ar7161_ubnt_routerstation.dtsi as well as two other
.dts files that utilize it, ar7161_ubnt_routerstation.dts and
ar7161_ubnt_routerstation-pro.dts.
The modifications to generic-ubnt.mk, config-default, and base-files
necessary for image generation, parsing RedBoot FIS partitions, network
configuration, and sysupgrade are also included.
This reintroduces vital bits from platform_do_upgrade_combined() and its
supporting functions to /lib/upgrade/platform.sh, which were previously
removed from ath79 in 3e9d9f6225 "ath79:
sysupgrade: drop unused platform checks". The new function is called
"routerstation_do_upgrade" and will *only* work for the RouterStation
series of boards. It does however retain the ability to downgrade (e.g.
from master -> 17.01.x using sysupgrade -F).
All hardware is functional including the AR8216 switch (for the Pro),
wireless via ath5k/ath9k using the miniPCI slots, flash, USB, button,
and LED.
Switch and LAN/WAN configuration is the same as it is with the
equivalent ar71xx targets. MAC addresses are assigned based upon the
content stored in the RedBoot config partition.
Flashing via both sysupgrade and TFTP has been confirmed to work. Also,
the initramfs images are now raw .bin files instead of being wrapped in
a uImage (as they currently are in ar71xx), which makes them bootable
with RedBoot.
One notable difference to ar71xx is the inclusion of the RedBoot
"fconfig" utility (analogous to U-Boot’s fw_printenv/fw_setenv) in
DEVICE_PACKAGES. The FIS partitions are probed using the RedBoot MTD
parser’s DT binding, whose proper usage is mutually exclusive to
defining a separate fixed-partitions node for "RedBoot config". This
config partition contains the board's base MAC address. The lack of a
hard-coded flash location means that the mtd-mac-address property cannot
be used in the .dts, so instead fconfig is used to read the MAC
addresses from flash in userspace during first boot.
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
Signed-off-by: Matt Merhar <mattmerhar@protonmail.com>
