Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/memory-controllers/ingenic,nemc.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Ingenic SoCs NAND / External Memory Controller (NEMC)
   8
   9 maintainers:
  10   - Paul Cercueil <paul@crapouillou.net>
  11
  12 properties:
  13   $nodename:
  14     pattern: "^memory-controller@[0-9a-f]+$"
  15
  16   compatible:
  17     oneOf:
  18       - enum:
  19           - ingenic,jz4740-nemc
  20           - ingenic,jz4780-nemc
  21       - items:
  22           - const: ingenic,jz4725b-nemc
  23           - const: ingenic,jz4740-nemc
  24
  25   "#address-cells":
  26     const: 2
  27
  28   "#size-cells":
  29     const: 1
  30
  31   ranges: true
  32
  33   reg:
  34     maxItems: 1
  35
  36   clocks:
  37     maxItems: 1
  38
  39 patternProperties:
  40   ".*@[0-9]+$":
  41     type: object
  42     $ref: mc-peripheral-props.yaml#
  43     additionalProperties: true
  44
  45 required:
  46   - compatible
  47   - "#address-cells"
  48   - "#size-cells"
  49   - ranges
  50   - reg
  51   - clocks
  52
  53 additionalProperties: false
  54
  55 examples:
  56   - |
  57     #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
  58     #include <dt-bindings/gpio/gpio.h>
  59     nemc: memory-controller@13410000 {
  60       compatible = "ingenic,jz4780-nemc";
  61       reg = <0x13410000 0x10000>;
  62       #address-cells = <2>;
  63       #size-cells = <1>;
  64       ranges = <1 0 0x1b000000 0x1000000>,
  65          <2 0 0x1a000000 0x1000000>,
  66          <3 0 0x19000000 0x1000000>,
  67          <4 0 0x18000000 0x1000000>,
  68          <5 0 0x17000000 0x1000000>,
  69          <6 0 0x16000000 0x1000000>;
  70
  71       clocks = <&cgu JZ4780_CLK_NEMC>;
  72
  73       ethernet@6 {
  74         compatible = "davicom,dm9000";
  75         davicom,no-eeprom;
  76
  77         pinctrl-names = "default";
  78         pinctrl-0 = <&pins_nemc_cs6>;
  79
  80         reg = <6 0 1>, /* addr */
  81               <6 2 1>; /* data */
  82
  83         ingenic,nemc-tAS = <15>;
  84         ingenic,nemc-tAH = <10>;
  85         ingenic,nemc-tBP = <20>;
  86         ingenic,nemc-tAW = <50>;
  87         ingenic,nemc-tSTRV = <100>;
  88
  89         reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>;
  90         vcc-supply = <&eth0_power>;
  91
  92         interrupt-parent = <&gpe>;
  93         interrupts = <19 4>;
  94       };
  95     };