Enable OF_UPSTREAM to use upstream DT and add marvell/ prefix to the
DEFAULT_DEVICE_TREE for Kirkwood boards. And so we can directly build
DTBs from dts/upstream/src/arm/marvell, and including *-u-boot.dtsi
files from arch/arm/dts/ directory.
Background:
The following 2 commands and filters were used in the analysis to determine
which upstream DTS and DTSI files can be used as they are, or need to have
modified/created *-u-boot.dtsi for u-boot specific implementation, and
which board should be opt-out from OF_UPSTREAM.
"git grep -li arch_kirkwood configs | xargs grep DEVICE_TREE | cut -d '"' -f2 | xargs -n1 sh -c 'diff -qs arch/arm/dts/$1.dts dts/upstream/src/arm/marvell/$1.dts' sh | grep differ"
"diff -qrbu arch/arm/dts/ dts/upstream/src/arm/marvell/ | grep kirkwood | grep ".dtsi ""
More detailed information can be found at:
https://lore.kernel.org/u-boot/20240328021825.17935-1-mibodhi@gmail.com/T/#u
I've regression tested this patch with the Zyxel NSA325 (Kirkwood 88F6282)
and Zyxel NSA310S (Kirkwood 88F6281). The Zyxel NSA325 board has a
USB 3.0 controller attached to the PCIe bus. And the Zyxel NSA310S
has an extensive overhaul in bindings and styles in upstream DTS version.
Tested-by: Michael Walle <michael@walle.cc> # on lschv2
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Tony Dinh <mibodhi@gmail.com>
ZyXEL NSA325 specifications:
Marvell Kirkwood 88F6282 SoC
1.6 GHz CPU
1x GBE LAN port (Marvell MV88E1318)
512 MB RAM
128 MB Eon NAND, SLC
I2C
1x USB 3.0 (on PCIe bus)
2x USB 2.0
2x SATA (hot swap slots)
Serial console
Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
