Add devicetree binding documentation for amphion Video Processing Unit IP presents on NXP i.MX8Q Signed-off-by: Ming Qian <ming.qian@xxxxxxx> Signed-off-by: Shijie Qin <shijie.qin@xxxxxxx> Signed-off-by: Zhou Peng <eagle.zhou@xxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> --- .../bindings/media/amphion,vpu.yaml | 178 ++++++++++++++++++ 1 file changed, 178 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/amphion,vpu.yaml diff --git a/Documentation/devicetree/bindings/media/amphion,vpu.yaml b/Documentation/devicetree/bindings/media/amphion,vpu.yaml new file mode 100644 index 000000000000..6d06b945bc8a --- /dev/null +++ b/Documentation/devicetree/bindings/media/amphion,vpu.yaml @@ -0,0 +1,178 @@ +# 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@xxxxxxx> + - Shijie Qin <shijie.qin@xxxxxxx> + +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>; + }; + }; + +... -- 2.32.0
