On 27/07/2022 14:00, Krzysztof Kozlowski wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > On 27/07/2022 14:56, Biju Das wrote: >>> >>> Then it is not the same SoC! Same means same, identical. CPU >>> architecture is one of the major differences, which means it is not the >>> same. >> >> Family SoC(R9A07G043) is at top level. Then it has different SoCId for taking care of >> differences for SoC based on ARMV8 and RISC-V which has separate compatible like >> r9a07g043u11 and r9a07g043f01? > > This does not answer the concern - it's not the same SoC. The most > generic compatible denotes the most common part. I would argue that > instruction set and architecture are the most important differences. > None of ARMv8 SoCs (SoCs, not CPU cores) have "arm,armv8" compatible and > you went even more - you combined two architectures in the most generic > compatibles. I would have to agree with this. The most "core" part of the SoC is its architecture and while the peripheral IPs might be the same etc & the Renesas marketing team might have put them in the same "family", for the purposes of a device tree I don't see how having a common fallback makes sense. Conor.