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
7title: Ingenic SoCs NAND / External Memory Controller (NEMC)
8
9maintainers:
10  - Paul Cercueil <paul@crapouillou.net>
11
12properties:
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
39patternProperties:
40  ".*@[0-9]+$":
41    type: object
42    $ref: mc-peripheral-props.yaml#
43
44required:
45  - compatible
46  - "#address-cells"
47  - "#size-cells"
48  - ranges
49  - reg
50  - clocks
51
52additionalProperties: false
53
54examples:
55  - |
56    #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
57    #include <dt-bindings/gpio/gpio.h>
58    nemc: memory-controller@13410000 {
59      compatible = "ingenic,jz4780-nemc";
60      reg = <0x13410000 0x10000>;
61      #address-cells = <2>;
62      #size-cells = <1>;
63      ranges = <1 0 0x1b000000 0x1000000>,
64         <2 0 0x1a000000 0x1000000>,
65         <3 0 0x19000000 0x1000000>,
66         <4 0 0x18000000 0x1000000>,
67         <5 0 0x17000000 0x1000000>,
68         <6 0 0x16000000 0x1000000>;
69
70      clocks = <&cgu JZ4780_CLK_NEMC>;
71
72      ethernet@6 {
73        compatible = "davicom,dm9000";
74        davicom,no-eeprom;
75
76        pinctrl-names = "default";
77        pinctrl-0 = <&pins_nemc_cs6>;
78
79        reg = <6 0 1>, /* addr */
80              <6 2 1>; /* data */
81
82        ingenic,nemc-tAS = <15>;
83        ingenic,nemc-tAH = <10>;
84        ingenic,nemc-tBP = <20>;
85        ingenic,nemc-tAW = <50>;
86        ingenic,nemc-tSTRV = <100>;
87
88        reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>;
89        vcc-supply = <&eth0_power>;
90
91        interrupt-parent = <&gpe>;
92        interrupts = <19 4>;
93      };
94    };
95