Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 170 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/cache/sifive,ccache0.yaml b/Documentation/devicetree/bindings/cache/sifive,ccache0.yaml
new file mode 100644
index 000000000..8a6a78e1a
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+++ b/Documentation/devicetree/bindings/cache/sifive,ccache0.yaml
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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2020 SiFive, Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cache/sifive,ccache0.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SiFive Composable Cache Controller
+
+maintainers:
+  - Paul Walmsley <paul.walmsley@sifive.com>
+
+description:
+  The SiFive Composable Cache Controller is used to provide access to fast copies
+  of memory for masters in a Core Complex. The Composable Cache Controller also
+  acts as directory-based coherency manager.
+  All the properties in ePAPR/DeviceTree specification applies for this platform.
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - sifive,ccache0
+          - sifive,fu540-c000-ccache
+          - sifive,fu740-c000-ccache
+
+  required:
+    - compatible
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - sifive,ccache0
+              - sifive,fu540-c000-ccache
+              - sifive,fu740-c000-ccache
+          - const: cache
+      - items:
+          - const: starfive,jh7110-ccache
+          - const: sifive,ccache0
+          - const: cache
+      - items:
+          - const: microchip,mpfs-ccache
+          - const: sifive,fu540-c000-ccache
+          - const: cache
+
+  cache-block-size:
+    const: 64
+
+  cache-level:
+    enum: [2, 3]
+
+  cache-sets:
+    enum: [1024, 2048]
+
+  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.
+
+allOf:
+  - $ref: /schemas/cache-controller.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - sifive,fu740-c000-ccache
+              - starfive,jh7110-ccache
+              - microchip,mpfs-ccache
+
+    then:
+      properties:
+        interrupts:
+          description: |
+            Must contain entries for DirError, DataError, DataFail, DirFail signals.
+          minItems: 4
+
+    else:
+      properties:
+        interrupts:
+          description: |
+            Must contain entries for DirError, DataError and DataFail signals.
+          maxItems: 3
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - sifive,fu740-c000-ccache
+              - starfive,jh7110-ccache
+
+    then:
+      properties:
+        cache-sets:
+          const: 2048
+
+    else:
+      properties:
+        cache-sets:
+          const: 1024
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: sifive,ccache0
+
+    then:
+      properties:
+        cache-level:
+          enum: [2, 3]
+
+    else:
+      properties:
+        cache-level:
+          const: 2
+
+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>;
+    };