[PATCH v8 5/6] riscv: dts: spacemit: Add clock tree for SpacemiT K1

[Haylen Chu]

Hi Yixun,

On Wed, Apr 16, 2025 at 01:54:05PM +0000, Haylen Chu wrote:
> Describe the PLL and system controllers that're capable of generating
> clock signals in the devicetree.
> 
> Signed-off-by: Haylen Chu <heylenay at 4d2.org>
> Reviewed-by: Alex Elder <elder at riscstar.com>
> Reviewed-by: Yixun Lan <dlan at gentoo.org>
> ---
>  arch/riscv/boot/dts/spacemit/k1.dtsi | 75 ++++++++++++++++++++++++++++
>  1 file changed, 75 insertions(+)
> 
> diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
> index c670ebf8fa12..584f0dbc60f5 100644
> --- a/arch/riscv/boot/dts/spacemit/k1.dtsi
> +++ b/arch/riscv/boot/dts/spacemit/k1.dtsi

I found that I forgot to make the nodenames of syscons consistent:
both "system-control" and "system-controller" are used, and pll should
be named as "clock-controller" instead.

Could you please drop the SoC devicetree patch then I could rework on
it and correct the mistake? Or I could follow up a clean up patch if
dropping isn't easy or doesn't follow the convention.

Thanks for your work,
Haylen Chu

> @@ -314,6 +346,17 @@ soc {
>  		dma-noncoherent;
>  		ranges;
>  
> +		syscon_apbc: system-control at d4015000 {
> +			compatible = "spacemit,k1-syscon-apbc";
> +			reg = <0x0 0xd4015000 0x0 0x1000>;
> +			clocks = <&osc_32k>, <&vctcxo_1m>, <&vctcxo_3m>,
> +				 <&vctcxo_24m>;
> +			clock-names = "osc", "vctcxo_1m", "vctcxo_3m",
> +				      "vctcxo_24m";
> +			#clock-cells = <1>;
> +			#reset-cells = <1>;
> +		};
> +
>  		uart0: serial at d4017000 {
>  			compatible = "spacemit,k1-uart", "intel,xscale-uart";
>  			reg = <0x0 0xd4017000 0x0 0x100>;
> @@ -409,6 +452,38 @@ pinctrl: pinctrl at d401e000 {
>  			reg = <0x0 0xd401e000 0x0 0x400>;
>  		};
>  
> +		syscon_mpmu: system-controller at d4050000 {
> +			compatible = "spacemit,k1-syscon-mpmu";
> +			reg = <0x0 0xd4050000 0x0 0x209c>;
> +			clocks = <&osc_32k>, <&vctcxo_1m>, <&vctcxo_3m>,
> +				 <&vctcxo_24m>;
> +			clock-names = "osc", "vctcxo_1m", "vctcxo_3m",
> +				      "vctcxo_24m";
> +			#clock-cells = <1>;
> +			#power-domain-cells = <1>;
> +			#reset-cells = <1>;
> +		};
> +
> +		pll: system-control at d4090000 {
> +			compatible = "spacemit,k1-pll";
> +			reg = <0x0 0xd4090000 0x0 0x1000>;
> +			clocks = <&vctcxo_24m>;
> +			spacemit,mpmu = <&syscon_mpmu>;
> +			#clock-cells = <1>;
> +		};
> +
> +		syscon_apmu: system-control at d4282800 {
> +			compatible = "spacemit,k1-syscon-apmu";
> +			reg = <0x0 0xd4282800 0x0 0x400>;
> +			clocks = <&osc_32k>, <&vctcxo_1m>, <&vctcxo_3m>,
> +				 <&vctcxo_24m>;
> +			clock-names = "osc", "vctcxo_1m", "vctcxo_3m",
> +				      "vctcxo_24m";
> +			#clock-cells = <1>;
> +			#power-domain-cells = <1>;
> +			#reset-cells = <1>;
> +		};
> +
>  		plic: interrupt-controller at e0000000 {
>  			compatible = "spacemit,k1-plic", "sifive,plic-1.0.0";
>  			reg = <0x0 0xe0000000 0x0 0x4000000>;
> -- 
> 2.49.0
>