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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/amphion,vpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amphion VPU codec IP
+
+maintainers:
+ - Ming Qian <ming.qian@nxp.com>
+ - Shijie Qin <shijie.qin@nxp.com>
+
+description: |-
+ The Amphion MXC video encoder(Windsor) and decoder(Malone) accelerators present
+ on NXP i.MX8Q SoCs.
+
+properties:
+ $nodename:
+ pattern: "^vpu@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - const: nxp,imx8qm-vpu
+ - const: nxp,imx8qxp-vpu
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+patternProperties:
+ "^mailbox@[0-9a-f]+$":
+ description:
+ Each vpu encoder or decoder correspond a MU, which used for communication
+ between driver and firmware. Implement via mailbox on driver.
+ $ref: ../mailbox/fsl,mu.yaml#
+
+
+ "^vpu_core@[0-9a-f]+$":
+ description:
+ Each core correspond a decoder or encoder, need to configure them
+ separately. NXP i.MX8QM SoC has one decoder and two encoder, i.MX8QXP SoC
+ has one decoder and one encoder.
+ type: object
+
+ properties:
+ compatible:
+ oneOf:
+ - const: nxp,imx8q-vpu-decoder
+ - const: nxp,imx8q-vpu-encoder
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ mbox-names:
+ items:
+ - const: tx0
+ - const: tx1
+ - const: rx
+
+ mboxes:
+ description:
+ List of phandle of 2 MU channels for tx, 1 MU channel for rx.
+ maxItems: 3
+
+ memory-region:
+ description:
+ Phandle to the reserved memory nodes to be associated with the
+ remoteproc device. The reserved memory nodes should be carveout nodes,
+ and should be defined as per the bindings in
+ Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
+ items:
+ - description: region reserved for firmware image sections.
+ - description: region used for RPC shared memory between firmware and
+ driver.
+
+ required:
+ - compatible
+ - reg
+ - power-domains
+ - mbox-names
+ - mboxes
+ - memory-region
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ # Device node example for i.MX8QM platform:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+
+ vpu: vpu@2c000000 {
+ compatible = "nxp,imx8qm-vpu";
+ ranges = <0x2c000000 0x2c000000 0x2000000>;
+ reg = <0x2c000000 0x1000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ power-domains = <&pd IMX_SC_R_VPU>;
+
+ mu_m0: mailbox@2d000000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d000000 0x20000>;
+ interrupts = <0 472 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_0>;
+ };
+
+ mu1_m0: mailbox@2d020000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d020000 0x20000>;
+ interrupts = <0 473 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_1>;
+ };
+
+ mu2_m0: mailbox@2d040000 {
+ compatible = "fsl,imx6sx-mu";
+ reg = <0x2d040000 0x20000>;
+ interrupts = <0 474 4>;
+ #mbox-cells = <2>;
+ power-domains = <&pd IMX_SC_R_VPU_MU_2>;
+ };
+
+ vpu_core0: vpu_core@2d080000 {
+ compatible = "nxp,imx8q-vpu-decoder";
+ reg = <0x2d080000 0x10000>;
+ power-domains = <&pd IMX_SC_R_VPU_DEC_0>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu_m0 0 0>,
+ <&mu_m0 0 1>,
+ <&mu_m0 1 0>;
+ memory-region = <&decoder_boot>, <&decoder_rpc>;
+ };
+
+ vpu_core1: vpu_core@2d090000 {
+ compatible = "nxp,imx8q-vpu-encoder";
+ reg = <0x2d090000 0x10000>;
+ power-domains = <&pd IMX_SC_R_VPU_ENC_0>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu1_m0 0 0>,
+ <&mu1_m0 0 1>,
+ <&mu1_m0 1 0>;
+ memory-region = <&encoder1_boot>, <&encoder1_rpc>;
+ };
+
+ vpu_core2: vpu_core@2d0a0000 {
+ reg = <0x2d0a0000 0x10000>;
+ compatible = "nxp,imx8q-vpu-encoder";
+ power-domains = <&pd IMX_SC_R_VPU_ENC_1>;
+ mbox-names = "tx0", "tx1", "rx";
+ mboxes = <&mu2_m0 0 0>,
+ <&mu2_m0 0 1>,
+ <&mu2_m0 1 0>;
+ memory-region = <&encoder2_boot>, <&encoder2_rpc>;
+ };
+ };
+
+...