On Fri, 6 Jan 2023 01:01:51 +0000 Andre Przywara <andre.przywara@xxxxxxx> wrote: > The MangoPi MQ-R is a small SBC with the Allwinner T113-s3 SoC. That is > a very close relative to the Allwinner D1/D1s SoCs, but with Arm > Cortex-A7 cores, and 128 MB of SIP co-packaged DDR3 DRAM. > > This series introduces the missing T113-s .dtsi, which builds on top of > the D1/D1s .dtsi, but adds the ARM specific peripherals, like the CPU > cores, the arch timer, the GIC and the PMU. > This requires to add a symlink to the RISC-V DT directory in patch 1/4, > to be able to easily reference the base .dtsi from other architecture > directories. First, forgot to mention that this builds on top of Samuel's D1/D1s DT series: https://lore.kernel.org/linux-arm-kernel/20221231233851.24923-1-samuel@xxxxxxxxxxxx/ To actually boot, this also relies on the R528/T113s clock series: https://lore.kernel.org/linux-arm-kernel/20221231231429.18357-1-samuel@xxxxxxxxxxxx/ > After I had written most of the board .dts, I realised that the > MangoPi MQ is almost the same, minus the RISC-V/ARM difference. I am a > bit unsure if we should share more of the board .dts, though, as this > would go cross architectures. I am open to any comments here. So after getting some sleep and having a look at the MangoPi website again, I realised that there is of course a D1s edition of the MQ-R as well. So shall we split this up like this: - a sunxi-mangopi-mq.dtsi, which contains all the board specific nodes - a sun20i-d1-mangopi-mq.dts, which includes that and sun20i-d1s.dtsi - a sun20i-d1-mangopi-mq-r.dts, which maybe includes sun20i-d1-mangopi-mq.dts, and just overwrites the model name? - a sun8i-t113s-mangopi-mq-r.dts, which includes sunxi-mangopi-mq.dtsi and sun8i-t113s.dtsi Let me know if this useful or more confusing. Cheers, Andre > Andre Przywara (4): > dts: add riscv include prefix link > ARM: dts: sunxi: add Allwinner T113-s SoC .dtsi > dt-bindings: arm: sunxi: document MangoPi MQ-R board name > ARM: dts: sunxi: add MangoPi MQ-R board > > .../devicetree/bindings/arm/sunxi.yaml | 5 + > arch/arm/boot/dts/Makefile | 1 + > .../arm/boot/dts/sun8i-t113s-mangopi-mq-r.dts | 160 ++++++++++++++++++ > arch/arm/boot/dts/sun8i-t113s.dtsi | 59 +++++++ > scripts/dtc/include-prefixes/riscv | 1 + > 5 files changed, 226 insertions(+) > create mode 100644 arch/arm/boot/dts/sun8i-t113s-mangopi-mq-r.dts > create mode 100644 arch/arm/boot/dts/sun8i-t113s.dtsi > create mode 120000 scripts/dtc/include-prefixes/riscv >
