1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mtd/mediatek,mtk-nfc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: MediaTek(MTK) SoCs raw NAND FLASH controller (NFC)
8
9 maintainers:
10 - Xiangsheng Hou <xiangsheng.hou@mediatek.com>
11
12 properties:
13 compatible:
14 enum:
15 - mediatek,mt2701-nfc
16 - mediatek,mt2712-nfc
17 - mediatek,mt7622-nfc
18
19 reg:
20 items:
21 - description: Base physical address and size of NFI.
22
23 interrupts:
24 items:
25 - description: NFI interrupt
26
27 clocks:
28 items:
29 - description: clock used for the controller
30 - description: clock used for the pad
31
32 clock-names:
33 items:
34 - const: nfi_clk
35 - const: pad_clk
36
37 ecc-engine:
38 description: device-tree node of the required ECC engine.
39 $ref: /schemas/types.yaml#/definitions/phandle
40
41 patternProperties:
42 "^nand@[a-f0-9]$":
43 $ref: raw-nand-chip.yaml#
44 unevaluatedProperties: false
45 properties:
46 reg:
47 maximum: 1
48 nand-ecc-mode:
49 const: hw
50
51 allOf:
52 - $ref: nand-controller.yaml#
53
54 - if:
55 properties:
56 compatible:
57 contains:
58 const: mediatek,mt2701-nfc
59 then:
60 patternProperties:
61 "^nand@[a-f0-9]$":
62 properties:
63 nand-ecc-step-size:
64 enum: [ 512, 1024 ]
65 nand-ecc-strength:
66 enum: [4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36,
67 40, 44, 48, 52, 56, 60]
68
69 - if:
70 properties:
71 compatible:
72 contains:
73 const: mediatek,mt2712-nfc
74 then:
75 patternProperties:
76 "^nand@[a-f0-9]$":
77 properties:
78 nand-ecc-step-size:
79 enum: [ 512, 1024 ]
80 nand-ecc-strength:
81 enum: [4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36,
82 40, 44, 48, 52, 56, 60, 68, 72, 80]
83
84 - if:
85 properties:
86 compatible:
87 contains:
88 const: mediatek,mt7622-nfc
89 then:
90 patternProperties:
91 "^nand@[a-f0-9]$":
92 properties:
93 nand-ecc-step-size:
94 const: 512
95 nand-ecc-strength:
96 enum: [4, 6, 8, 10, 12]
97
98 required:
99 - compatible
100 - reg
101 - interrupts
102 - clocks
103 - clock-names
104 - ecc-engine
105
106 unevaluatedProperties: false
107
108 examples:
109 - |
110 #include <dt-bindings/clock/mt2701-clk.h>
111 #include <dt-bindings/interrupt-controller/arm-gic.h>
112 #include <dt-bindings/interrupt-controller/irq.h>
113
114 soc {
115 #address-cells = <2>;
116 #size-cells = <2>;
117
118 nand-controller@1100d000 {
119 compatible = "mediatek,mt2701-nfc";
120 reg = <0 0x1100d000 0 0x1000>;
121 interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_LOW>;
122 clocks = <&pericfg CLK_PERI_NFI>,
123 <&pericfg CLK_PERI_NFI_PAD>;
124 clock-names = "nfi_clk", "pad_clk";
125 ecc-engine = <&bch>;
126 #address-cells = <1>;
127 #size-cells = <0>;
128
129 nand@0 {
130 reg = <0>;
131
132 nand-on-flash-bbt;
133 nand-ecc-mode = "hw";
134 nand-ecc-step-size = <1024>;
135 nand-ecc-strength = <24>;
136
137 partitions {
138 compatible = "fixed-partitions";
139 #address-cells = <1>;
140 #size-cells = <1>;
141
142 preloader@0 {
143 label = "pl";
144 read-only;
145 reg = <0x0 0x400000>;
146 };
147 android@400000 {
148 label = "android";
149 reg = <0x400000 0x12c00000>;
150 };
151 };
152 };
153 };
154 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.