tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mtd/rockchip,nand-controller.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Rockchip SoCs NAND FLASH Controller (NFC)
8
9allOf:
10 - $ref: "nand-controller.yaml#"
11
12maintainers:
13 - Heiko Stuebner <heiko@sntech.de>
14
15properties:
16 compatible:
17 oneOf:
18 - const: rockchip,px30-nfc
19 - const: rockchip,rk2928-nfc
20 - const: rockchip,rv1108-nfc
21 - items:
22 - const: rockchip,rk3036-nfc
23 - const: rockchip,rk2928-nfc
24 - items:
25 - const: rockchip,rk3308-nfc
26 - const: rockchip,rv1108-nfc
27
28 reg:
29 maxItems: 1
30
31 interrupts:
32 maxItems: 1
33
34 clocks:
35 minItems: 1
36 items:
37 - description: Bus Clock
38 - description: Module Clock
39
40 clock-names:
41 minItems: 1
42 items:
43 - const: ahb
44 - const: nfc
45
46 assigned-clocks:
47 maxItems: 1
48
49 assigned-clock-rates:
50 maxItems: 1
51
52 power-domains:
53 maxItems: 1
54
55patternProperties:
56 "^nand@[0-7]$":
57 type: object
58 properties:
59 reg:
60 minimum: 0
61 maximum: 7
62
63 nand-ecc-mode:
64 const: hw
65
66 nand-ecc-step-size:
67 const: 1024
68
69 nand-ecc-strength:
70 enum: [16, 24, 40, 60, 70]
71 description: |
72 The ECC configurations that can be supported are as follows.
73 NFC v600 ECC 16, 24, 40, 60
74 RK2928, RK3066, RK3188
75
76 NFC v622 ECC 16, 24, 40, 60
77 RK3036, RK3128
78
79 NFC v800 ECC 16
80 RK3308, RV1108
81
82 NFC v900 ECC 16, 40, 60, 70
83 RK3326, PX30
84
85 nand-bus-width:
86 const: 8
87
88 rockchip,boot-blks:
89 $ref: /schemas/types.yaml#/definitions/uint32
90 minimum: 2
91 default: 16
92 description:
93 The NFC driver need this information to select ECC
94 algorithms supported by the boot ROM.
95 Only used in combination with 'nand-is-boot-medium'.
96
97 rockchip,boot-ecc-strength:
98 enum: [16, 24, 40, 60, 70]
99 allOf:
100 - $ref: /schemas/types.yaml#/definitions/uint32
101 description: |
102 If specified it indicates that a different BCH/ECC setting is
103 supported by the boot ROM.
104 NFC v600 ECC 16, 24
105 RK2928, RK3066, RK3188
106
107 NFC v622 ECC 16, 24, 40, 60
108 RK3036, RK3128
109
110 NFC v800 ECC 16
111 RK3308, RV1108
112
113 NFC v900 ECC 16, 70
114 RK3326, PX30
115
116 Only used in combination with 'nand-is-boot-medium'.
117
118required:
119 - compatible
120 - reg
121 - interrupts
122 - clocks
123 - clock-names
124
125unevaluatedProperties: false
126
127examples:
128 - |
129 #include <dt-bindings/clock/rk3308-cru.h>
130 #include <dt-bindings/interrupt-controller/arm-gic.h>
131 nfc: nand-controller@ff4b0000 {
132 compatible = "rockchip,rk3308-nfc",
133 "rockchip,rv1108-nfc";
134 reg = <0xff4b0000 0x4000>;
135 interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
136 clocks = <&cru HCLK_NANDC>, <&cru SCLK_NANDC>;
137 clock-names = "ahb", "nfc";
138 assigned-clocks = <&clks SCLK_NANDC>;
139 assigned-clock-rates = <150000000>;
140
141 pinctrl-0 = <&flash_ale &flash_bus8 &flash_cle &flash_csn0
142 &flash_rdn &flash_rdy &flash_wrn>;
143 pinctrl-names = "default";
144
145 #address-cells = <1>;
146 #size-cells = <0>;
147
148 nand@0 {
149 reg = <0>;
150 label = "rk-nand";
151 nand-bus-width = <8>;
152 nand-ecc-mode = "hw";
153 nand-ecc-step-size = <1024>;
154 nand-ecc-strength = <16>;
155 nand-is-boot-medium;
156 rockchip,boot-blks = <8>;
157 rockchip,boot-ecc-strength = <16>;
158 };
159 };
160
161...