xref: /freebsd/sys/contrib/device-tree/Bindings/memory-controllers/ingenic,nemc.yaml (revision 7ef62cebc2f965b0f640263e179276928885e33d) 
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) devicetree bindings
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
43required:
44  - compatible
45  - "#address-cells"
46  - "#size-cells"
47  - ranges
48  - reg
49  - clocks
50
51additionalProperties: false
52
53examples:
54  - |
55    #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
56    #include <dt-bindings/gpio/gpio.h>
57    nemc: memory-controller@13410000 {
58      compatible = "ingenic,jz4780-nemc";
59      reg = <0x13410000 0x10000>;
60      #address-cells = <2>;
61      #size-cells = <1>;
62      ranges = <1 0 0x1b000000 0x1000000>,
63         <2 0 0x1a000000 0x1000000>,
64         <3 0 0x19000000 0x1000000>,
65         <4 0 0x18000000 0x1000000>,
66         <5 0 0x17000000 0x1000000>,
67         <6 0 0x16000000 0x1000000>;
68
69      clocks = <&cgu JZ4780_CLK_NEMC>;
70
71      ethernet@6 {
72        compatible = "davicom,dm9000";
73        davicom,no-eeprom;
74
75        pinctrl-names = "default";
76        pinctrl-0 = <&pins_nemc_cs6>;
77
78        reg = <6 0 1>, /* addr */
79              <6 2 1>; /* data */
80
81        ingenic,nemc-tAS = <15>;
82        ingenic,nemc-tAH = <10>;
83        ingenic,nemc-tBP = <20>;
84        ingenic,nemc-tAW = <50>;
85        ingenic,nemc-tSTRV = <100>;
86
87        reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>;
88        vcc-supply = <&eth0_power>;
89
90        interrupt-parent = <&gpe>;
91        interrupts = <19 4>;
92      };
93    };
94