cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

fsl,rpmsg.yaml (3225B)


      1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/sound/fsl,rpmsg.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: NXP Audio RPMSG CPU DAI Controller
      8
      9maintainers:
     10  - Shengjiu Wang <shengjiu.wang@nxp.com>
     11
     12description: |
     13  fsl_rpmsg is a virtual audio device. Mapping to real hardware devices
     14  are SAI, DMA controlled by Cortex M core. What we see from Linux
     15  side is a device which provides audio service by rpmsg channel.
     16
     17properties:
     18  compatible:
     19    enum:
     20      - fsl,imx7ulp-rpmsg-audio
     21      - fsl,imx8mn-rpmsg-audio
     22      - fsl,imx8mm-rpmsg-audio
     23      - fsl,imx8mp-rpmsg-audio
     24      - fsl,imx8ulp-rpmsg-audio
     25
     26  model:
     27    $ref: /schemas/types.yaml#/definitions/string
     28    description: User specified audio sound card name
     29
     30  clocks:
     31    items:
     32      - description: Peripheral clock for register access
     33      - description: Master clock
     34      - description: DMA clock for DMA register access
     35      - description: Parent clock for multiple of 8kHz sample rates
     36      - description: Parent clock for multiple of 11kHz sample rates
     37
     38  clock-names:
     39    items:
     40      - const: ipg
     41      - const: mclk
     42      - const: dma
     43      - const: pll8k
     44      - const: pll11k
     45
     46  power-domains:
     47    description:
     48      List of phandle and PM domain specifier as documented in
     49      Documentation/devicetree/bindings/power/power_domain.txt
     50    maxItems: 1
     51
     52  memory-region:
     53    maxItems: 1
     54    description:
     55      phandle to a node describing reserved memory (System RAM memory)
     56      The M core can't access all the DDR memory space on some platform,
     57      So reserved a specific memory for dma buffer which M core can
     58      access.
     59      (see bindings/reserved-memory/reserved-memory.txt)
     60
     61  audio-codec:
     62    $ref: /schemas/types.yaml#/definitions/phandle
     63    description: The phandle to a node of audio codec
     64
     65  audio-routing:
     66    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
     67    description: |
     68      A list of the connections between audio components. Each entry is a
     69      pair of strings, the first being the connection's sink, the second
     70      being the connection's source.
     71
     72  fsl,enable-lpa:
     73    $ref: /schemas/types.yaml#/definitions/flag
     74    description: enable low power audio path.
     75
     76  fsl,rpmsg-out:
     77    $ref: /schemas/types.yaml#/definitions/flag
     78    description: |
     79      This is a boolean property. If present, the transmitting function
     80      will be enabled.
     81
     82  fsl,rpmsg-in:
     83    $ref: /schemas/types.yaml#/definitions/flag
     84    description: |
     85      This is a boolean property. If present, the receiving function
     86      will be enabled.
     87
     88required:
     89  - compatible
     90  - model
     91
     92additionalProperties: false
     93
     94examples:
     95  - |
     96    #include <dt-bindings/clock/imx8mn-clock.h>
     97
     98    rpmsg_audio: rpmsg_audio {
     99        compatible = "fsl,imx8mn-rpmsg-audio";
    100        model = "wm8524-audio";
    101        fsl,enable-lpa;
    102        fsl,rpmsg-out;
    103        clocks = <&clk IMX8MN_CLK_SAI3_IPG>,
    104                 <&clk IMX8MN_CLK_SAI3_ROOT>,
    105                 <&clk IMX8MN_CLK_SDMA3_ROOT>,
    106                 <&clk IMX8MN_AUDIO_PLL1_OUT>,
    107                 <&clk IMX8MN_AUDIO_PLL2_OUT>;
    108        clock-names = "ipg", "mclk", "dma", "pll8k", "pll11k";
    109    };