On Mon, Feb 10, 2025 at 08:02:12AM +0800, Chen Wang wrote: > > On 2025/2/10 6:06, Alexander Sverdlin wrote: > > This series adds very basic support for Milk-V Duo Module 01 EVB [1] in > > arm64 mode. The SoC (SG2000) is dual-arch, RiscV and ARM64, the latter has > > been chosen because the upstream toolchain can be utilized. > > > > Sophgo SG2000 seems to be a continuation of the Cvitek CV18xx series, same > > peripherals with an addition of ARM64 core. Therefore it would be > > beneficial not to copy-paste the peripherals' device-tree, but rather split > > the most suitable riscv DT into ARCH-specific and peripherals parts and > > just include the latter on the arm64 side. > > > > This series adds the device-tree for Milk-V Duo Module 01 EVB, which > > in turn contains Milk-V Duo Module 01 (separate .dtsi) on it, which has > > SG2000 SoC inside (separate .dtsi). > > > > This series has been tested with Sophgo-provided U-Boot binary [2]: it > > boots from SD card, pinctrl, serial, GPIO drivers are functional (same > > as for RiscV-based CV18xx SoCs). > > New reset driver is provided as an alternative to the ATF PSCI handler, > > which Sophgo only provides in binary form. > > I just see Inochi posted a patchset about cv18xx reset driver [1]. FYI. > > Maybe you and Inochi need to communicate with each other and synchronize the > related work in this regard. > > Link: https://lore.kernel.org/linux-riscv/20250209122936.2338821-1-inochiama@xxxxxxxxx/ > [1] > It is a power restart device, not the reset controller, I suggests you change the device name. > > > > Partial SoC documentation is available [3]. > > > > This series lacks the support of: > > - USB > > - Audio > > - Ethernet > > - WiFi > > - Bluetooth > > - eMMC > > - Video > > > > It would probably make sense that the whole series would go into SOC tree, > > even though technically nothing prevents the reboot/reset driver to come > > in PM/reset tree. If everything would come together, `reboot` command would > > work out of the box. > > > > [1] https://milkv.io/docs/duo/getting-started/duo-module-01 > > [2] https://github.com/milkv-duo/duo-buildroot-sdk-v2/releases/ > > [3] https://github.com/sophgo/sophgo-doc/releases/download/sg2000-trm-v1.01/sg2000_trm_en.pdf > > > > Alexander Sverdlin (10): > > arm64: Add SOPHGO SOC family Kconfig support > > riscv: dts: sophgo: cv18xx: Split into CPU core and peripheral parts > > arm64: dts: sophgo: Add initial SG2000 SoC device tree > > arm64: dts: sophgo: Add Duo Module 01 > > arm64: dts: sophgo: Add Duo Module 01 Evaluation Board > > dt-bindings: mfd: syscon: Add Cvitek CV18xx rtcsys core and ctrl > > compatible > > dt-bindings: reset: sophgo: Add CV18xx reset controller > > riscv/arm64: dts: cv18xx: Add sysctl and reset nodes > > power: reset: cv18xx: New driver > > arm64: defconfig: Enable rudimentary Sophgo SG2000 support > > > > .../devicetree/bindings/mfd/syscon.yaml | 4 + > > .../bindings/reset/sophgo,cv1800-reset.yaml | 38 ++ > > MAINTAINERS | 1 + > > arch/arm64/Kconfig.platforms | 12 + > > arch/arm64/boot/dts/Makefile | 1 + > > arch/arm64/boot/dts/sophgo/Makefile | 2 + > > arch/arm64/boot/dts/sophgo/sg2000.dtsi | 79 +++++ > > .../sophgo/sg2000_milkv_duo_module_01.dtsi | 84 +++++ > > .../sophgo/sg2000_milkv_duo_module_01_evb.dts | 30 ++ > > arch/arm64/configs/defconfig | 3 + > > arch/riscv/boot/dts/sophgo/cv181x.dtsi | 2 +- > > arch/riscv/boot/dts/sophgo/cv18xx-periph.dtsi | 329 ++++++++++++++++++ > > arch/riscv/boot/dts/sophgo/cv18xx.dtsi | 305 +--------------- > > drivers/power/reset/Kconfig | 12 + > > drivers/power/reset/Makefile | 1 + > > drivers/power/reset/cv18xx-reset.c | 89 +++++ > > 16 files changed, 689 insertions(+), 303 deletions(-) > > create mode 100644 Documentation/devicetree/bindings/reset/sophgo,cv1800-reset.yaml > > create mode 100644 arch/arm64/boot/dts/sophgo/Makefile > > create mode 100644 arch/arm64/boot/dts/sophgo/sg2000.dtsi > > create mode 100644 arch/arm64/boot/dts/sophgo/sg2000_milkv_duo_module_01.dtsi > > create mode 100644 arch/arm64/boot/dts/sophgo/sg2000_milkv_duo_module_01_evb.dts > > create mode 100644 arch/riscv/boot/dts/sophgo/cv18xx-periph.dtsi > > create mode 100644 drivers/power/reset/cv18xx-reset.c > >
