162306a36Sopenharmony_ciDevice Tree Clock bindings for arch-moxart 262306a36Sopenharmony_ci 362306a36Sopenharmony_ciThis binding uses the common clock binding[1]. 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci[1] Documentation/devicetree/bindings/clock/clock-bindings.txt 662306a36Sopenharmony_ci 762306a36Sopenharmony_ciMOXA ART SoCs allow to determine PLL output and APB frequencies 862306a36Sopenharmony_ciby reading registers holding multiplier and divisor information. 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ciPLL: 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ciRequired properties: 1462306a36Sopenharmony_ci- compatible : Must be "moxa,moxart-pll-clock" 1562306a36Sopenharmony_ci- #clock-cells : Should be 0 1662306a36Sopenharmony_ci- reg : Should contain registers location and length 1762306a36Sopenharmony_ci- clocks : Should contain phandle + clock-specifier for the parent clock 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ciOptional properties: 2062306a36Sopenharmony_ci- clock-output-names : Should contain clock name 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ciAPB: 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ciRequired properties: 2662306a36Sopenharmony_ci- compatible : Must be "moxa,moxart-apb-clock" 2762306a36Sopenharmony_ci- #clock-cells : Should be 0 2862306a36Sopenharmony_ci- reg : Should contain registers location and length 2962306a36Sopenharmony_ci- clocks : Should contain phandle + clock-specifier for the parent clock 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ciOptional properties: 3262306a36Sopenharmony_ci- clock-output-names : Should contain clock name 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ciFor example: 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci clk_pll: clk_pll@98100000 { 3862306a36Sopenharmony_ci compatible = "moxa,moxart-pll-clock"; 3962306a36Sopenharmony_ci #clock-cells = <0>; 4062306a36Sopenharmony_ci reg = <0x98100000 0x34>; 4162306a36Sopenharmony_ci }; 4262306a36Sopenharmony_ci 4362306a36Sopenharmony_ci clk_apb: clk_apb@98100000 { 4462306a36Sopenharmony_ci compatible = "moxa,moxart-apb-clock"; 4562306a36Sopenharmony_ci #clock-cells = <0>; 4662306a36Sopenharmony_ci reg = <0x98100000 0x34>; 4762306a36Sopenharmony_ci clocks = <&clk_pll>; 4862306a36Sopenharmony_ci }; 49