xref: /linux/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml (revision 6e7fd890f1d6ac83805409e9c346240de2705584) 
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    additionalProperties: true
44
45required:
46  - compatible
47  - "#address-cells"
48  - "#size-cells"
49  - ranges
50  - reg
51  - clocks
52
53additionalProperties: false
54
55examples:
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    };
96