122 lines
3.4 KiB
YAML
122 lines
3.4 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/renesas,sysc-rmobile.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Renesas R-Mobile System Controller
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maintainers:
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- Geert Uytterhoeven <geert+renesas@glider.be>
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- Magnus Damm <magnus.damm@gmail.com>
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description: |
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The R-Mobile System Controller provides the following functions:
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- Boot mode management,
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- Reset generation,
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- Power management.
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properties:
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compatible:
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items:
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- enum:
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- renesas,sysc-r8a73a4 # R-Mobile APE6
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- renesas,sysc-r8a7740 # R-Mobile A1
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- renesas,sysc-sh73a0 # SH-Mobile AG5
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- const: renesas,sysc-rmobile # Generic SH/R-Mobile
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reg:
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items:
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- description: Normally accessible register block
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- description: Register block protected by the HPB semaphore
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pm-domains:
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type: object
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description: |
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This node contains a hierarchy of PM domain nodes, which should match the
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Power Area Hierarchy in the Power Domain Specifications section of the
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device's datasheet.
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properties:
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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additionalProperties:
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$ref: "#/$defs/pd-node"
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required:
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- compatible
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- reg
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- pm-domains
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additionalProperties: false
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$defs:
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pd-node:
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type: object
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description:
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PM domain node representing a PM domain. This node hould be named by
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the real power area name, and thus its name should be unique.
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properties:
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reg:
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maxItems: 1
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description:
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If the PM domain is not always-on, this property must contain the
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bit index number for the corresponding power area in the various
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Power Control and Status Registers.
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If the PM domain is always-on, this property must be omitted.
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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'#power-domain-cells':
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const: 0
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required:
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- '#power-domain-cells'
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additionalProperties:
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$ref: "#/$defs/pd-node"
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examples:
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- |
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// This shows a subset of the r8a7740 PM domain hierarchy, containing the
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// C5 "always-on" domain, 2 of its subdomains (A4S and A4SU), and the A3SP
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// domain, which is a subdomain of A4S.
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sysc: system-controller@e6180000 {
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compatible = "renesas,sysc-r8a7740", "renesas,sysc-rmobile";
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reg = <0xe6180000 0x8000>, <0xe6188000 0x8000>;
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pm-domains {
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pd_c5: c5 {
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#address-cells = <1>;
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#size-cells = <0>;
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#power-domain-cells = <0>;
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pd_a4s: a4s@10 {
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reg = <10>;
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#address-cells = <1>;
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#size-cells = <0>;
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#power-domain-cells = <0>;
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pd_a3sp: a3sp@11 {
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reg = <11>;
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#power-domain-cells = <0>;
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};
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};
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pd_a4su: a4su@20 {
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reg = <20>;
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#power-domain-cells = <0>;
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};
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};
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};
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};
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