Define the compatible string and properties needed by imx_dsp_rproc driver. Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx> --- changes in v2: - add items for clock-names - change syscon to fsl,dsp-ctrl .../remoteproc/fsl,imx-dsp-rproc.yaml | 150 ++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/fsl,imx-dsp-rproc.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/fsl,imx-dsp-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/fsl,imx-dsp-rproc.yaml new file mode 100644 index 000000000000..edf6e4b8d7bb --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-dsp-rproc.yaml @@ -0,0 +1,150 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/fsl,imx-dsp-rproc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: i.MX DSP Remoteproc Devices + +maintainers: + - Shengjiu Wang <shengjiu.wang@xxxxxxx> + +description: + This binding provides support for DSP processors found on i.mX family of SoCs + +properties: + compatible: + enum: + - fsl,imx8qxp-hifi4 + - fsl,imx8qm-hifi4 + - fsl,imx8mp-hifi4 + - fsl,imx8ulp-hifi4 + + clocks: + description: + Main functional clock for the remote processor + minItems: 1 + maxItems: 32 + + clock-names: + description: | + List of clock names for the remote processor. + dsp_clkx for clocks of dsp itself. + per_clkx for clocks of peripherals used by dsp. + minItems: 1 + maxItems: 26 + items: + - const: dsp_clk1 + - const: dsp_clk2 + - const: dsp_clk3 + - const: dsp_clk4 + - const: dsp_clk5 + - const: dsp_clk6 + - const: dsp_clk7 + - const: dsp_clk8 + - const: per_clk1 + - const: per_clk2 + - const: per_clk3 + - const: per_clk4 + - const: per_clk5 + - const: per_clk6 + - const: per_clk7 + - const: per_clk8 + - const: per_clk9 + - const: per_clk10 + - const: per_clk11 + - const: per_clk12 + - const: per_clk13 + - const: per_clk14 + - const: per_clk15 + - const: per_clk16 + - const: per_clk17 + - const: per_clk18 + + fsl,dsp-ctrl: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to syscon block which provide access for processor enablement + + mbox-names: + items: + - const: tx + - const: rx + - const: rxdb + + mboxes: + description: + This property is required only if the rpmsg/virtio functionality is used. + List of <&phandle type channel> - 1 channel for TX, 1 channel for RX, 1 channel for RXDB. + (see mailbox/fsl,mu.yaml) + minItems: 1 + maxItems: 3 + + firmware-name: + description: | + Default name of the firmware to load to the remote processor. + + memory-region: + description: + If present, a phandle for a reserved memory area that used for vdev buffer, + resource table, vring region and others used by remote processor. + minItems: 1 + maxItems: 32 + + reg: + description: | + Address space for any remoteproc memories present on the SoC. + + power-domains: + minItems: 1 + maxItems: 32 + +required: + - compatible + - reg + - mboxes + - mbox-names + - clocks + - clock-names + - firmware-name + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/imx8mp-clock.h> + dsp_reserved: dsp@92400000 { + reg = <0x92400000 0x1000000>; + no-map; + }; + dsp_vdev0vring0: vdev0vring0@942f0000 { + reg = <0x942f0000 0x8000>; + no-map; + }; + dsp_vdev0vring1: vdev0vring1@942f8000 { + reg = <0x942f8000 0x8000>; + no-map; + }; + dsp_vdev0buffer: vdev0buffer@94300000 { + compatible = "shared-dma-pool"; + reg = <0x94300000 0x100000>; + no-map; + }; + + dsp: dsp@3b6e8000 { + compatible = "fsl,imx8mp-hifi4"; + reg = <0x3B6E8000 0x88000>; + clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_OCRAMA_IPG>, + <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_DSP_ROOT>, + <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_DSPDBG_ROOT>; + clock-names = "dsp_clk1", "dsp_clk2", "dsp_clk3"; + firmware-name = "imx/dsp/hifi4.bin"; + power-domains = <&audiomix_pd>; + mbox-names = "tx", "rx", "rxdb"; + mboxes = <&mu2 0 0>, + <&mu2 1 0>, + <&mu2 3 0>; + memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>, + <&dsp_vdev0vring1>, <&dsp_reserved>; + fsl,dsp-ctrl = <&audio_blk_ctrl>; + }; -- 2.17.1
