Resguardo inicial

2026-09-06 12:53:21 -06:00
parent 662efe3c2a
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iommu/verisilicon,iommu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Verisilicon IOMMU
+
+maintainers:
+  - Benjamin Gaignard <benjamin.gaignard@collabora.com>
+
+description: |+
+  A Versilicon iommu translates io virtual addresses to physical addresses for
+  its associated video decoder.
+
+properties:
+  compatible:
+    items:
+      - const: rockchip,rk3588-av1-iommu
+      - const: verisilicon,iommu-1.2
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Core clock
+      - description: Interface clock
+
+  clock-names:
+    items:
+      - const: core
+      - const: iface
+
+  "#iommu-cells":
+    const: 0
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - "#iommu-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    bus {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      iommu@fdca0000 {
+        compatible = "rockchip,rk3588-av1-iommu","verisilicon,iommu-1.2";
+        reg = <0x0 0xfdca0000 0x0 0x600>;
+        interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH 0>;
+        clocks = <&cru ACLK_AV1>, <&cru PCLK_AV1>;
+        clock-names = "core", "iface";
+        #iommu-cells = <0>;
+      };
+    };