On Fri, Aug 20, 2021 at 06:03:10PM +0800, Shengjiu Wang wrote: > Define the compatible string and properties needed by imx_dsp_rproc > driver. > > Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx> > --- > .../remoteproc/fsl,imx-dsp-rproc.yaml | 123 ++++++++++++++++++ > 1 file changed, 123 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..7eba49aa959e > --- /dev/null > +++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-dsp-rproc.yaml > @@ -0,0 +1,123 @@ > +# 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 Don't need '|' if no formatting. > + 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. Sounds like constraints that should be a schema. But this looks like some random collection of clocks, not clocks for the DSP h/w. > + minItems: 1 > + maxItems: 32 > + > + syscon: Vendor prefix and name it based on what it points to or is used for. > + $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>; > + syscon = <&audio_blk_ctrl>; > + }; > -- > 2.17.1 > >
