tjh.dev
Linux kernel mirror (for testing)
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linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mtd/qcom,nandc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm NAND controller
8
9maintainers:
10 - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
11
12properties:
13 compatible:
14 enum:
15 - qcom,ipq806x-nand
16 - qcom,ipq4019-nand
17 - qcom,ipq6018-nand
18 - qcom,ipq8074-nand
19 - qcom,sdx55-nand
20
21 reg:
22 maxItems: 1
23
24 clocks:
25 items:
26 - description: Core Clock
27 - description: Always ON Clock
28
29 clock-names:
30 items:
31 - const: core
32 - const: aon
33
34 "#address-cells": true
35 "#size-cells": true
36
37patternProperties:
38 "^nand@[a-f0-9]$":
39 type: object
40 properties:
41 nand-bus-width:
42 const: 8
43
44 nand-ecc-strength:
45 enum: [1, 4, 8]
46
47 nand-ecc-step-size:
48 enum:
49 - 512
50
51allOf:
52 - $ref: "nand-controller.yaml#"
53
54 - if:
55 properties:
56 compatible:
57 contains:
58 const: qcom,ipq806x-nand
59 then:
60 properties:
61 dmas:
62 items:
63 - description: rxtx DMA channel
64
65 dma-names:
66 items:
67 - const: rxtx
68
69 qcom,cmd-crci:
70 $ref: /schemas/types.yaml#/definitions/uint32
71 description:
72 Must contain the ADM command type CRCI block instance number
73 specified for the NAND controller on the given platform
74
75 qcom,data-crci:
76 $ref: /schemas/types.yaml#/definitions/uint32
77 description:
78 Must contain the ADM data type CRCI block instance number
79 specified for the NAND controller on the given platform
80
81 - if:
82 properties:
83 compatible:
84 contains:
85 enum:
86 - qcom,ipq4019-nand
87 - qcom,ipq6018-nand
88 - qcom,ipq8074-nand
89 - qcom,sdx55-nand
90
91 then:
92 properties:
93 dmas:
94 items:
95 - description: tx DMA channel
96 - description: rx DMA channel
97 - description: cmd DMA channel
98
99 dma-names:
100 items:
101 - const: tx
102 - const: rx
103 - const: cmd
104
105required:
106 - compatible
107 - reg
108 - clocks
109 - clock-names
110
111unevaluatedProperties: false
112
113examples:
114 - |
115 #include <dt-bindings/clock/qcom,gcc-ipq806x.h>
116 nand-controller@1ac00000 {
117 compatible = "qcom,ipq806x-nand";
118 reg = <0x1ac00000 0x800>;
119
120 clocks = <&gcc EBI2_CLK>,
121 <&gcc EBI2_AON_CLK>;
122 clock-names = "core", "aon";
123
124 dmas = <&adm_dma 3>;
125 dma-names = "rxtx";
126 qcom,cmd-crci = <15>;
127 qcom,data-crci = <3>;
128
129 #address-cells = <1>;
130 #size-cells = <0>;
131
132 nand@0 {
133 reg = <0>;
134
135 nand-ecc-strength = <4>;
136 nand-bus-width = <8>;
137
138 partitions {
139 compatible = "fixed-partitions";
140 #address-cells = <1>;
141 #size-cells = <1>;
142
143 partition@0 {
144 label = "boot-nand";
145 reg = <0 0x58a0000>;
146 };
147
148 partition@58a0000 {
149 label = "fs-nand";
150 reg = <0x58a0000 0x4000000>;
151 };
152 };
153 };
154 };
155
156 #include <dt-bindings/clock/qcom,gcc-ipq4019.h>
157 nand-controller@79b0000 {
158 compatible = "qcom,ipq4019-nand";
159 reg = <0x79b0000 0x1000>;
160
161 clocks = <&gcc GCC_QPIC_CLK>,
162 <&gcc GCC_QPIC_AHB_CLK>;
163 clock-names = "core", "aon";
164
165 dmas = <&qpicbam 0>,
166 <&qpicbam 1>,
167 <&qpicbam 2>;
168 dma-names = "tx", "rx", "cmd";
169
170 #address-cells = <1>;
171 #size-cells = <0>;
172
173 nand@0 {
174 reg = <0>;
175 nand-ecc-strength = <4>;
176 nand-bus-width = <8>;
177
178 partitions {
179 compatible = "fixed-partitions";
180 #address-cells = <1>;
181 #size-cells = <1>;
182
183 partition@0 {
184 label = "boot-nand";
185 reg = <0 0x58a0000>;
186 };
187
188 partition@58a0000 {
189 label = "fs-nand";
190 reg = <0x58a0000 0x4000000>;
191 };
192 };
193 };
194 };
195
196...