[v6,1/7] dt-bindings: soc: ti: Add AM65 peripheral virtualization unit

Commit Message

Jan Kiszka Sept. 9, 2024, 5:03 p.m. UTC

From: Jan Kiszka <[e-mail]>

The PVU allows to define a limited set of mappings for incoming DMA
requests to the system memory. It is not a real IOMMU, thus hooked up
under the TI SoC bindings.

Signed-off-by: Jan Kiszka <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
---
 .../bindings/soc/ti/ti,am654-pvu.yaml         | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml

Patch

diff --git a/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml b/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml
new file mode 100644
index 000000000000..e4a5fc47d674
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml
@@ -0,0 +1,51 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) Siemens AG, 2024
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/ti/ti,am654-pvu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI AM654 Peripheral Virtualization Unit
+
+maintainers:
+  - Jan Kiszka <[e-mail]>
+
+properties:
+  compatible:
+    enum:
+      - ti,am654-pvu
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: cfg
+      - const: tlbif
+
+  interrupts:
+    items:
+      - description: fault interrupt
+
+  interrupt-names:
+    items:
+      - const: pvu
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+
+additionalProperties: false
+
+examples:
+  - |
+    iommu@30f80000 {
+        compatible = "ti,am654-pvu";
+        reg = <0x30f80000 0x1000>,
+              <0x36000000 0x100000>;
+        reg-names = "cfg", "tlbif";
+        interrupts-extended = <&intr_main_navss 390>;
+        interrupt-names = "pvu";
+    };