imx-sata.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/ata/imx-sata.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Freescale i.MX AHCI SATA Controller
    8 
    9 maintainers:
   10   - Shawn Guo <shawn.guo@linaro.org>
   11 
   12 description: |
   13   The Freescale i.MX SATA controller mostly conforms to the AHCI interface
   14   with some special extensions at integration level.
   15 
   16 properties:
   17   compatible:
   18     enum:
   19       - fsl,imx53-ahci
   20       - fsl,imx6q-ahci
   21       - fsl,imx6qp-ahci
   22 
   23   reg:
   24     maxItems: 1
   25 
   26   interrupts:
   27     maxItems: 1
   28 
   29   clocks:
   30     items:
   31       - description: sata clock
   32       - description: sata reference clock
   33       - description: ahb clock
   34 
   35   clock-names:
   36     items:
   37       - const: sata
   38       - const: sata_ref
   39       - const: ahb
   40 
   41   fsl,transmit-level-mV:
   42     $ref: /schemas/types.yaml#/definitions/uint32
   43     description: transmit voltage level, in millivolts.
   44 
   45   fsl,transmit-boost-mdB:
   46     $ref: /schemas/types.yaml#/definitions/uint32
   47     description: transmit boost level, in milli-decibels.
   48 
   49   fsl,transmit-atten-16ths:
   50     $ref: /schemas/types.yaml#/definitions/uint32
   51     description: transmit attenuation, in 16ths.
   52 
   53   fsl,receive-eq-mdB:
   54     $ref: /schemas/types.yaml#/definitions/uint32
   55     description: receive equalisation, in milli-decibels.
   56 
   57   fsl,no-spread-spectrum:
   58     $ref: /schemas/types.yaml#/definitions/flag
   59     description: if present, disable spread-spectrum clocking on the SATA link.
   60 
   61 required:
   62   - compatible
   63   - reg
   64   - interrupts
   65   - clocks
   66   - clock-names
   67 
   68 additionalProperties: false
   69 
   70 examples:
   71   - |
   72     #include <dt-bindings/clock/imx6qdl-clock.h>
   73     #include <dt-bindings/interrupt-controller/arm-gic.h>
   74 
   75     sata@2200000 {
   76         compatible = "fsl,imx6q-ahci";
   77         reg = <0x02200000 0x4000>;
   78         interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>;
   79         clocks = <&clks IMX6QDL_CLK_SATA>,
   80                  <&clks IMX6QDL_CLK_SATA_REF_100M>,
   81                  <&clks IMX6QDL_CLK_AHB>;
   82         clock-names = "sata", "sata_ref", "ahb";
   83     };

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