diff options
Diffstat (limited to 'Documentation/devicetree/bindings/riscv/cpus.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/riscv/cpus.yaml | 50 |
1 files changed, 37 insertions, 13 deletions
diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml index 04819ad379c2..90a7cabf58fe 100644 --- a/Documentation/devicetree/bindings/riscv/cpus.yaml +++ b/Documentation/devicetree/bindings/riscv/cpus.yaml @@ -9,6 +9,7 @@ title: RISC-V bindings for 'cpus' DT nodes maintainers: - Paul Walmsley <paul.walmsley@sifive.com> - Palmer Dabbelt <palmer@sifive.com> + - Conor Dooley <conor@kernel.org> description: | This document uses some terminology common to the RISC-V community @@ -28,11 +29,22 @@ properties: - items: - enum: - sifive,rocket0 + - sifive,bullet0 - sifive,e5 - - sifive,e51 - - sifive,u54-mc + - sifive,e7 + - sifive,e71 + - sifive,u74-mc - sifive,u54 + - sifive,u74 - sifive,u5 + - sifive,u7 + - canaan,k210 + - const: riscv + - items: + - enum: + - sifive,e51 + - sifive,u54-mc + - const: sifive,rocket0 - const: riscv - const: riscv # Simulator only description: @@ -40,24 +52,24 @@ properties: and identifies the type of the hart. mmu-type: - allOf: - - $ref: "/schemas/types.yaml#/definitions/string" - - enum: - - riscv,sv32 - - riscv,sv39 - - riscv,sv48 description: Identifies the MMU address translation mode used on this hart. These values originate from the RISC-V Privileged Specification document, available from https://riscv.org/specifications/ + $ref: "/schemas/types.yaml#/definitions/string" + enum: + - riscv,sv32 + - riscv,sv39 + - riscv,sv48 + - riscv,none + + riscv,cbom-block-size: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The blocksize in bytes for the Zicbom cache operations. riscv,isa: - allOf: - - $ref: "/schemas/types.yaml#/definitions/string" - - enum: - - rv64imac - - rv64imafdc description: Identifies the specific RISC-V instruction set architecture supported by the hart. These are documented in the RISC-V @@ -67,6 +79,8 @@ properties: While the isa strings in ISA specification are case insensitive, letters in the riscv,isa string must be all lowercase to simplify parsing. + $ref: "/schemas/types.yaml#/definitions/string" + pattern: ^rv(?:64|32)imaf?d?q?c?b?v?k?h?(?:_[hsxz](?:[a-z])+)*$ # RISC-V requires 'timebase-frequency' in /cpus, so disallow it here timebase-frequency: false @@ -89,10 +103,20 @@ properties: - compatible - interrupt-controller + cpu-idle-states: + $ref: '/schemas/types.yaml#/definitions/phandle-array' + items: + maxItems: 1 + description: | + List of phandles to idle state nodes supported + by this hart (see ./idle-states.yaml). + required: - riscv,isa - interrupt-controller +additionalProperties: true + examples: - | // Example 1: SiFive Freedom U540G Development Kit |