From 11465c84c96201d97ab600b0ea31c6268ed79c9c Mon Sep 17 00:00:00 2001
From: Drew Fustini <dfustini@baylibre.com>
Date: Mon, 17 Apr 2023 21:25:45 -0700
Subject: [PATCH] DO_NOT_MERGE dt-bindings: soc: add Foobar SoC cache
controller
Add bindings for an example SoC cache controller that implements CBQRI.
Co-developed-by: Adrien Ricciardi <aricciardi@baylibre.com>
Signed-off-by: Adrien Ricciardi <aricciardi@baylibre.com>
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
---
.../soc/foobar/foobar,cache-controller.yaml | 51 +++++++++++++++++++
1 file changed, 51 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/foobar/foobar,cache-controller.yaml
diff --git a/Documentation/devicetree/bindings/soc/foobar/foobar,cache-controller.yaml b/Documentation/devicetree/bindings/soc/foobar/foobar,cache-controller.yaml
new file mode 100644
index 0000000000000..6348483bbe096
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/foobar/foobar,cache-controller.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/foobar/foobar,cache-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Foobar SoC Cache Controller
+
+maintainers:
+ - Drew Fustini <dfustini@baylibre.com>
+
+description:
+ Foobar SoC cache controller implements the RISC-V CBQRI interface for
+ capacity allocaiton and usage monitoring.
+
+allOf:
+ - $ref: /schemas/cache-controller.yaml#
+ - $ref: /schemas/riscv/riscv,cbqri.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: foobar,cache-controller
+ reg:
+ maxItems: 1
+ description: A memory region containing registers as defined in CBQRI spec
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+
+ cache-controller@fff12000 {
+ compatible = "foobar,cache-controller";
+ reg = <0xfff12000 0x2000>;
+ cache-level = <2>;
+ riscv,cbqri-rcid = <64>;
+ riscv,cbqri-mcid = <256>;
+ };
+
+...
--
GitLab