xref: /linux/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml (revision cdd5b5a9761fd66d17586e4f4ba6588c70e640ea) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mtd/allwinner,sun4i-a10-nand.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Allwinner A10 NAND Controller
8
9allOf:
10  - $ref: nand-controller.yaml
11
12maintainers:
13  - Chen-Yu Tsai <wens@csie.org>
14  - Maxime Ripard <mripard@kernel.org>
15
16properties:
17  compatible:
18    enum:
19      - allwinner,sun4i-a10-nand
20      - allwinner,sun8i-a23-nand-controller
21  reg:
22    maxItems: 1
23
24  interrupts:
25    maxItems: 1
26
27  clocks:
28    items:
29      - description: Bus Clock
30      - description: Module Clock
31
32  clock-names:
33    items:
34      - const: ahb
35      - const: mod
36
37  resets:
38    maxItems: 1
39
40  reset-names:
41    const: ahb
42
43  dmas:
44    maxItems: 1
45
46  dma-names:
47    const: rxtx
48
49patternProperties:
50  "^nand@[a-f0-9]$":
51    type: object
52    $ref: raw-nand-chip.yaml
53    properties:
54      reg:
55        minimum: 0
56        maximum: 7
57
58      nand-ecc-algo:
59        const: bch
60
61      nand-ecc-step-size:
62        enum: [ 512, 1024 ]
63
64      nand-ecc-strength:
65        maximum: 80
66
67      allwinner,rb:
68        description:
69          Contains the native Ready/Busy IDs.
70        $ref: /schemas/types.yaml#/definitions/uint32-array
71        minItems: 1
72        maxItems: 2
73        items:
74          minimum: 0
75          maximum: 1
76
77    unevaluatedProperties: false
78
79required:
80  - compatible
81  - reg
82  - interrupts
83  - clocks
84  - clock-names
85
86unevaluatedProperties: false
87
88examples:
89  - |
90    #include <dt-bindings/interrupt-controller/arm-gic.h>
91    #include <dt-bindings/clock/sun6i-rtc.h>
92    #include <dt-bindings/clock/sun8i-a23-a33-ccu.h>
93    #include <dt-bindings/reset/sun8i-a23-a33-ccu.h>
94
95    nand-controller@1c03000 {
96        compatible = "allwinner,sun8i-a23-nand-controller";
97        reg = <0x01c03000 0x1000>;
98        interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
99        clocks = <&ccu CLK_BUS_NAND>, <&ccu CLK_NAND>;
100        clock-names = "ahb", "mod";
101        resets = <&ccu RST_BUS_NAND>;
102        reset-names = "ahb";
103        dmas = <&dma 5>;
104        dma-names = "rxtx";
105        pinctrl-names = "default";
106        pinctrl-0 = <&nand_pins &nand_cs0_pin &nand_rb0_pin>;
107        #address-cells = <1>;
108        #size-cells = <0>;
109    };
110
111...
112