Commit a4dc1ca6 authored by Rob Herring's avatar Rob Herring

dt-bindings: riscv: Fix CPU schema errors

Fix the errors in the RiscV CPU DT schema:

Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: 'timebase-frequency' is a required property
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@1: 'timebase-frequency' is a required property
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: compatible:0: 'riscv' is not one of ['sifive,rocket0', 'sifive,e5', 'sifive,e51', 'sifive,u54-mc', 'sifive,u54', 'sifive,u5']
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: compatible: ['riscv'] is too short
Documentation/devicetree/bindings/riscv/cpus.example.dt.yaml: cpu@0: 'timebase-frequency' is a required property

The DT spec allows for 'timebase-frequency' to be in 'cpu' or 'cpus' node
and RiscV requires it in /cpus node, so make it disallowed in cpu
nodes.

Fixes: 4fd669a8 ("dt-bindings: riscv: convert cpu binding to json-schema")
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Acked-by: default avatarPaul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent ce0c94e1
......@@ -24,15 +24,17 @@ description: |
properties:
compatible:
items:
- enum:
- sifive,rocket0
- sifive,e5
- sifive,e51
- sifive,u54-mc
- sifive,u54
- sifive,u5
- const: riscv
oneOf:
- items:
- enum:
- sifive,rocket0
- sifive,e5
- sifive,e51
- sifive,u54-mc
- sifive,u54
- sifive,u5
- const: riscv
- const: riscv # Simulator only
description:
Identifies that the hart uses the RISC-V instruction set
and identifies the type of the hart.
......@@ -66,12 +68,8 @@ properties:
insensitive, letters in the riscv,isa string must be all
lowercase to simplify parsing.
timebase-frequency:
type: integer
minimum: 1
description:
Specifies the clock frequency of the system timer in Hz.
This value is common to all harts on a single system image.
# RISC-V requires 'timebase-frequency' in /cpus, so disallow it here
timebase-frequency: false
interrupt-controller:
type: object
......@@ -93,7 +91,6 @@ properties:
required:
- riscv,isa
- timebase-frequency
- interrupt-controller
examples:
......
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