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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/bus/fsl,imx8mp-aipstz.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Secure AHB to IP Slave bus (AIPSTZ) bridge

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description:

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  The secure AIPS bridge (AIPSTZ) acts as a bridge for AHB masters issuing

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  transactions to IP Slave peripherals. Additionally, this module offers access

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  control configurations meant to restrict which peripherals a master can

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  access.

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maintainers:

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  - Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>

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properties:

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  compatible:

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    const: fsl,imx8mp-aipstz

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  reg:

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    maxItems: 1

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  power-domains:

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    maxItems: 1

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  "#address-cells":

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    const: 1

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  "#size-cells":

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    const: 1

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  "#access-controller-cells":

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    const: 3

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    description:

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      First cell - consumer ID

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      Second cell - consumer type (master or peripheral)

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      Third cell - configuration value

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  ranges: true

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# borrowed from simple-bus.yaml, no additional requirements for children

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patternProperties:

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  "@(0|[1-9a-f][0-9a-f]*)$":

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    type: object

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    additionalProperties: true

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    properties:

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      reg:

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        items:

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          minItems: 2

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          maxItems: 4

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        minItems: 1

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        maxItems: 1024

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      ranges:

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        oneOf:

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          - items:

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              minItems: 3

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              maxItems: 7

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            minItems: 1

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            maxItems: 1024

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          - $ref: /schemas/types.yaml#/definitions/flag

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    anyOf:

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      - required:

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          - reg

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      - required:

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          - ranges

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required:

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  - compatible

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  - reg

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  - power-domains

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  - "#address-cells"

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  - "#size-cells"

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  - "#access-controller-cells"

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  - ranges

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/clock/imx8mp-clock.h>

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    #include <dt-bindings/interrupt-controller/arm-gic.h>

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    bus@30df0000 {

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        compatible = "fsl,imx8mp-aipstz";

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        reg = <0x30df0000 0x10000>;

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        ranges = <0x30c00000 0x30c00000 0x400000>;

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        power-domains = <&pgc_audio>;

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        #address-cells = <1>;

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        #size-cells = <1>;

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        #access-controller-cells = <3>;

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        dma-controller@30e00000 {

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            compatible = "fsl,imx8mp-sdma", "fsl,imx8mq-sdma";

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            reg = <0x30e00000 0x10000>;

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            #dma-cells = <3>;

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            clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SDMA3_ROOT>,

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                     <&clk IMX8MP_CLK_AUDIO_ROOT>;

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            clock-names = "ipg", "ahb";

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            interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;

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            fsl,sdma-ram-script-name = "imx/sdma/sdma-imx7d.bin";

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        };

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    };

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