[PATCH v12 1/7] dt-bindings: soc: ti: Add AM65 peripheral virtualization unit

huaqian.li
2025-07-28T02:42:40Z

From: Jan Kiszka <jan.kiszka@siemens.com>

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 <jan.kiszka@siemens.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Li Hua Qian <huaqian.li@siemens.com>
---
.../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

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 <jan.kiszka@siemens.com>
+
+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";
+ };
--
2.34.1