Add documentation to describe Spacemit K1 system controller registers. Signed-off-by: Haylen Chu <heylenay@xxxxxxx> --- .../soc/spacemit/spacemit,k1-syscon.yaml | 86 +++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml diff --git a/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml b/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml new file mode 100644 index 000000000000..b9f20190a70a --- /dev/null +++ b/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/spacemit/spacemit,k1-syscon.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Spacemit K1 SoC System Controller + +maintainers: + - Haylen Chu <heylenay@xxxxxxx> + +description: + The Spacemit K1 SoC system controller provides access to shared register files + for related SoC modules, such as clock controller and reset controller. + +properties: + compatible: + items: + - enum: + - spacemit,k1-apbc-syscon + - spacemit,k1-apbs-syscon + - spacemit,k1-apmu-syscon + - spacemit,k1-mpmu-syscon + - const: syscon + - const: simple-mfd + + reg: + maxItems: 1 + + clock-controller: + $ref: /schemas/clock/spacemit,k1-ccu.yaml# + type: object + + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + +additionalProperties: false + +required: + - compatible + - reg + +examples: + - | + osc_32k: clock-32k { + compatible = "fixed-clock"; + clock-frequency = <32000>; + clock-output-names = "osc_32k"; + #clock-cells = <0>; + }; + + vctcxo_1m: clock-1m { + compatible = "fixed-clock"; + clock-frequency = <1000000>; + clock-output-names = "vctcxo_1m"; + #clock-cells = <0>; + }; + + vctcxo_3m: clock-3m { + compatible = "fixed-clock"; + clock-frequency = <3000000>; + clock-output-names = "vctcxo_3m"; + #clock-cells = <0>; + }; + + vctcxo_24m: clock-24m { + compatible = "fixed-clock"; + clock-frequency = <24000000>; + clock-output-names = "vctcxo_24m"; + #clock-cells = <0>; + }; + + system-controller@d4050000 { + compatible = "spacemit,k1-mpmu-syscon", "syscon", "simple-mfd"; + reg = <0xd4050000 0x209c>; + + clock-controller { + compatible = "spacemit,k1-ccu-mpmu"; + clocks = <&osc_32k>, <&vctcxo_1m>, <&vctcxo_3m>, <&vctcxo_24m>; + clock-names = "osc_32k", "vctcxo_1m", "vctcxo_3m", "vctcxo_24m"; + #clock-cells = <1>; + }; + }; -- 2.47.0
