From: Peng Fan <peng.fan@xxxxxxx> Add i.MX SCMI Extension protocols bindings for: - Battery Backed Secure Module(BBSM) - MISC settings such as General Purpose Registers settings. Signed-off-by: Peng Fan <peng.fan@xxxxxxx> --- .../devicetree/bindings/firmware/imx,scmi.yaml | 80 ++++++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/imx,scmi.yaml b/Documentation/devicetree/bindings/firmware/imx,scmi.yaml new file mode 100644 index 000000000000..7ee19a661d83 --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/imx,scmi.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2024 NXP +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/firmware/imx,scmi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: i.MX System Control and Management Interface(SCMI) Vendor Protocols Extension + +maintainers: + - Peng Fan <peng.fan@xxxxxxx> + +allOf: + - $ref: arm,scmi.yaml# + +properties: + protocol@81: + $ref: 'arm,scmi.yaml#/$defs/protocol-node' + unevaluatedProperties: false + description: + The BBM Protocol is for managing Battery Backed Secure Module (BBSM) RTC + and the ON/OFF Key + + properties: + reg: + const: 0x81 + + required: + - reg + + protocol@84: + $ref: 'arm,scmi.yaml#/$defs/protocol-node' + unevaluatedProperties: false + description: + The MISC Protocol is for managing SoC Misc settings, such as GPR settings + + properties: + reg: + const: 0x84 + + wakeup-sources: + description: + Each entry consists of 2 integers, represents the source and electric signal edge + items: + items: + - description: the wakeup source + - description: the wakeup electric signal edge + $ref: /schemas/types.yaml#/definitions/uint32-matrix + + required: + - reg + +additionalProperties: false + +examples: + - | + firmware { + scmi { + compatible = "arm,scmi"; + mboxes = <&mu2 5 0>, <&mu2 3 0>, <&mu2 3 1>; + shmem = <&scmi_buf0>, <&scmi_buf1>; + + #address-cells = <1>; + #size-cells = <0>; + + protocol@81 { + reg = <0x81>; + }; + + protocol@84 { + reg = <0x84>; + wakeup-sources = <0x8000 1 + 0x8001 1 + 0x8002 1 + 0x8003 1 + 0x8004 1>; + }; + }; + }; +... -- 2.37.1
