apple,nvme-ans.yaml

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    1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/nvme/apple,nvme-ans.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Apple ANS NVM Express host controller
    8 
    9 maintainers:
   10   - Sven Peter <sven@svenpeter.dev>
   11 
   12 properties:
   13   compatible:
   14     items:
   15       - enum:
   16           - apple,t8103-nvme-ans2
   17           - apple,t6000-nvme-ans2
   18       - const: apple,nvme-ans2
   19 
   20   reg:
   21     items:
   22       - description: NVMe and NVMMU registers
   23       - description: ANS2 co-processor control registers
   24 
   25   reg-names:
   26     items:
   27       - const: nvme
   28       - const: ans
   29 
   30   resets:
   31     maxItems: 1
   32 
   33   power-domains:
   34     # two domains for t8103, three for t6000
   35     minItems: 2
   36     items:
   37       - description: power domain for the NVMe controller.
   38       - description: power domain for the first PCIe bus connecting the NVMe
   39           controller to the storage modules.
   40       - description: optional power domain for the second PCIe bus
   41           connecting the NVMe controller to the storage modules.
   42 
   43   power-domain-names:
   44     minItems: 2
   45     items:
   46       - const: ans
   47       - const: apcie0
   48       - const: apcie1
   49 
   50   mboxes:
   51     maxItems: 1
   52     description: Mailbox of the ANS2 co-processor
   53 
   54   interrupts:
   55     maxItems: 1
   56 
   57   apple,sart:
   58     $ref: /schemas/types.yaml#/definitions/phandle
   59     description: |
   60       Reference to the SART address filter.
   61 
   62       The SART address filter is documented in iommu/apple,sart.yaml.
   63 
   64 if:
   65   properties:
   66     compatible:
   67       contains:
   68         const: apple,t8103-nvme-ans2
   69 then:
   70   properties:
   71     power-domains:
   72       maxItems: 2
   73     power-domain-names:
   74       maxItems: 2
   75 else:
   76   properties:
   77     power-domains:
   78       minItems: 3
   79     power-domain-names:
   80       minItems: 3
   81 
   82 required:
   83   - compatible
   84   - reg
   85   - reg-names
   86   - resets
   87   - power-domains
   88   - power-domain-names
   89   - mboxes
   90   - interrupts
   91   - apple,sart
   92 
   93 additionalProperties: false
   94 
   95 examples:
   96   - |
   97     #include <dt-bindings/interrupt-controller/apple-aic.h>
   98     #include <dt-bindings/interrupt-controller/irq.h>
   99 
  100     nvme@7bcc0000 {
  101       compatible = "apple,t8103-nvme-ans2", "apple,nvme-ans2";
  102       reg = <0x7bcc0000 0x40000>, <0x77400000 0x4000>;
  103       reg-names = "nvme", "ans";
  104       interrupts = <AIC_IRQ 590 IRQ_TYPE_LEVEL_HIGH>;
  105       mboxes = <&ans>;
  106       apple,sart = <&sart>;
  107       power-domains = <&ps_ans2>, <&ps_apcie_st>;
  108       power-domain-names = "ans", "apcie0";
  109       resets = <&ps_ans2>;
  110     };

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sys/contrib/device-tree/Bindings/nvme/apple,nvme-ans.yaml