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Implement via mailbox on driver. + + vpu_core: + type: object + additionalProperties: false + description: + Each core correspond a decoder or encoder, need to configure them + separately. + + properties: + compatible: + oneOf: + - const: nxp,imx8q-vpu-decoder + - const: nxp,imx8q-vpu-encoder + + reg: + maxItems: 1 + + power-domains: + maxItems: 1 + + mbox-names: + - const: tx0 + - const: tx1 + - const: rx + + mboxes: + maxItems: 3 + description: + List of phandle of 2 MU channels for tx, 1 MU channel for rx. + + boot-region: + description: + Phandle to a node describing reserved memory used by firmware + loading. + + rpc-region: + description: + Phandle to a node describing reserved memory used by RPC shared + memory between firmware and driver. + + print-offset: + description: + The memory offset from RPC address, used by reserve firmware log. + + id: + description: Index of vpu core. + + required: + - compatible + - reg + - power-domains + - mbox-names + - mboxes + - boot-region + - rpc-region + - print-offset + - id + + +required: + - compatible + - reg + - power-domains + - memory-region + - vpu_lpcg + - mu_m0 + - vpu_core + +examples: + # Device node example for i.MX8QM platform: + - | + #include + + vpu: vpu-bus@2c000000 { + compatible = "nxp,imx8qm-vpu", "simple-bus"; + ranges = <0x2c000000 0x2c000000 0x2000000>; + reg = <0x2c000000 0x1000000>; + #address-cells = <1>; + #size-cells = <1>; + power-domains = <&pd IMX_SC_R_VPU>; + memory-region = <&vpu_reserved>; + + vpu_lpcg: clock-controller@2c000000 { + compatible = "fsl,imx8qxp-lpcg-vpu"; + reg = <0x2c000000 0x2000000>; + #clock-cells = <1>; + status = "disabled"; + }; + + 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_decoder@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>; + boot-region = <&decoder_boot>; + rpc-region = <&decoder_rpc>; + print-offset = <0x180000>; + id = <0>; + }; + + vpu_core1: vpu_encoder@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>; + boot-region = <&encoder1_boot>; + rpc-region = <&encoder1_rpc>; + print-offset = <0x80000>; + id = <1>; + }; + + vpu_core2: vpu_encoder@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>; + boot-region = <&encoder2_boot>; + rpc-region = <&encoder2_rpc>; + id = <2>; + }; + }; + +...