Am Samstag, 26. November 2022, 00:46:48 CET schrieb Samuel Holland: > D1 (aka D1-H), D1s (aka F133), R528, and T113 are a family of SoCs based > on a single die, or at a pair of dies derived from the same design. > > D1 and D1s contain a single T-HEAD Xuantie C906 CPU, whereas R528 and > T113 contain a pair of Cortex-A7's. D1 and R528 are the full version of > the chip with a BGA package, whereas D1s and T113 are low-pin-count QFP > variants. > > Because the original design supported both ARM and RISC-V CPUs, some > peripherals are duplicated. In addition, all variants except D1s contain > a HiFi 4 DSP with its own set of peripherals. > > The devicetrees are organized to minimize duplication: > - Common perhiperals are described in sunxi-d1s-t113.dtsi > - DSP-related peripherals are described in sunxi-d1-t113.dtsi > - RISC-V specific hardware is described in sun20i-d1s.dtsi > - Functionality unique to the D1 variant is described in sun20i-d1.dtsi > > The SOC_PERIPHERAL_IRQ macro handles the different #interrupt-cells > values between the ARM (GIC) and RISC-V (PLIC) versions of the SoC. > > Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx> While the overall dt looks good to me, it seems others did find some minor issues. But I can at least provide a Tested-by: Heiko Stuebner <heiko.stuebner@xxxxxxxx> as it could sucessfully boot the Nezha variant of boards for me. Heiko
