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-# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
-# Copyright (C) 2020 SiFive, Inc.
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/riscv/sifive-l2-cache.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: SiFive L2 Cache Controller
-
-maintainers:
- - Sagar Kadam <sagar.kadam@sifive.com>
- - Paul Walmsley <paul.walmsley@sifive.com>
-
-description:
- The SiFive Level 2 Cache Controller is used to provide access to fast copies
- of memory for masters in a Core Complex. The Level 2 Cache Controller also
- acts as directory-based coherency manager.
- All the properties in ePAPR/DeviceTree specification applies for this platform.
-
-allOf:
- - $ref: /schemas/cache-controller.yaml#
-
-select:
- properties:
- compatible:
- contains:
- enum:
- - sifive,fu540-c000-ccache
- - sifive,fu740-c000-ccache
-
- required:
- - compatible
-
-properties:
- compatible:
- items:
- - enum:
- - sifive,fu540-c000-ccache
- - sifive,fu740-c000-ccache
- - const: cache
-
- cache-block-size:
- const: 64
-
- cache-level:
- const: 2
-
- cache-sets:
- const: 1024
-
- cache-size:
- const: 2097152
-
- cache-unified: true
-
- interrupts:
- minItems: 3
- items:
- - description: DirError interrupt
- - description: DataError interrupt
- - description: DataFail interrupt
- - description: DirFail interrupt
-
- reg:
- maxItems: 1
-
- next-level-cache: true
-
- memory-region:
- maxItems: 1
- description: |
- The reference to the reserved-memory for the L2 Loosely Integrated Memory region.
- The reserved memory node should be defined as per the bindings in reserved-memory.txt.
-
-if:
- properties:
- compatible:
- contains:
- const: sifive,fu540-c000-ccache
-
-then:
- properties:
- interrupts:
- description: |
- Must contain entries for DirError, DataError and DataFail signals.
- maxItems: 3
-
-else:
- properties:
- interrupts:
- description: |
- Must contain entries for DirError, DataError, DataFail, DirFail signals.
- minItems: 4
-
-additionalProperties: false
-
-required:
- - compatible
- - cache-block-size
- - cache-level
- - cache-sets
- - cache-size
- - cache-unified
- - interrupts
- - reg
-
-examples:
- - |
- cache-controller@2010000 {
- compatible = "sifive,fu540-c000-ccache", "cache";
- cache-block-size = <64>;
- cache-level = <2>;
- cache-sets = <1024>;
- cache-size = <2097152>;
- cache-unified;
- reg = <0x2010000 0x1000>;
- interrupt-parent = <&plic0>;
- interrupts = <1>,
- <2>,
- <3>;
- next-level-cache = <&L25>;
- memory-region = <&l2_lim>;
- };