diff options
Diffstat (limited to 'Documentation/devicetree/bindings/firmware/arm,scmi.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 77 |
1 files changed, 76 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 5c4c6782e052..948e2a38beed 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -38,6 +38,9 @@ properties: The virtio transport only supports a single device. items: - const: arm,scmi-virtio + - description: SCMI compliant firmware with OP-TEE transport + items: + - const: linaro,scmi-optee interrupts: description: @@ -78,11 +81,24 @@ properties: '#size-cells': const: 0 + atomic-threshold-us: + description: + An optional time value, expressed in microseconds, representing, on this + platform, the threshold above which any SCMI command, advertised to have + an higher-than-threshold execution latency, should not be considered for + atomic mode of operation, even if requested. + default: 0 + arm,smc-id: $ref: /schemas/types.yaml#/definitions/uint32 description: SMC id required when using smc or hvc transports + linaro,optee-channel-id: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Channel specifier required when using OP-TEE transport. + protocol@11: type: object properties: @@ -195,6 +211,12 @@ patternProperties: minItems: 1 maxItems: 2 + linaro,optee-channel-id: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Channel specifier required when using OP-TEE transport and + protocol has a dedicated communication channel. + required: - reg @@ -226,6 +248,16 @@ else: - arm,smc-id - shmem + else: + if: + properties: + compatible: + contains: + const: linaro,scmi-optee + then: + required: + - linaro,optee-channel-id + examples: - | firmware { @@ -240,6 +272,8 @@ examples: #address-cells = <1>; #size-cells = <0>; + atomic-threshold-us = <10000>; + scmi_devpd: protocol@11 { reg = <0x11>; #power-domain-cells = <1>; @@ -330,7 +364,7 @@ examples: firmware { scmi { compatible = "arm,scmi-smc"; - shmem = <&cpu_scp_lpri0 &cpu_scp_lpri1>; + shmem = <&cpu_scp_lpri0>, <&cpu_scp_lpri1>; arm,smc-id = <0xc3000001>; #address-cells = <1>; @@ -340,7 +374,48 @@ examples: reg = <0x11>; #power-domain-cells = <1>; }; + }; + }; + + - | + firmware { + scmi { + compatible = "linaro,scmi-optee"; + linaro,optee-channel-id = <0>; + #address-cells = <1>; + #size-cells = <0>; + + scmi_dvfs1: protocol@13 { + reg = <0x13>; + linaro,optee-channel-id = <1>; + shmem = <&cpu_optee_lpri0>; + #clock-cells = <1>; + }; + + scmi_clk0: protocol@14 { + reg = <0x14>; + #clock-cells = <1>; + }; + }; + }; + + soc { + #address-cells = <2>; + #size-cells = <2>; + + sram@51000000 { + compatible = "mmio-sram"; + reg = <0x0 0x51000000 0x0 0x10000>; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x0 0x51000000 0x10000>; + + cpu_optee_lpri0: optee-sram-section@0 { + compatible = "arm,scmi-shmem"; + reg = <0x0 0x80>; + }; }; }; |