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| 1 | +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/mtd/ti,davinci-nand.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: TI DaVinci NAND controller |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Marcus Folkesson <[email protected]> |
| 11 | + |
| 12 | +allOf: |
| 13 | + - $ref: nand-controller.yaml |
| 14 | + |
| 15 | +properties: |
| 16 | + compatible: |
| 17 | + enum: |
| 18 | + - ti,davinci-nand |
| 19 | + - ti,keystone-nand |
| 20 | + |
| 21 | + reg: |
| 22 | + items: |
| 23 | + - description: Access window. |
| 24 | + - description: AEMIF control registers. |
| 25 | + |
| 26 | + partitions: |
| 27 | + $ref: /schemas/mtd/partitions/partitions.yaml |
| 28 | + |
| 29 | + ti,davinci-chipselect: |
| 30 | + description: |
| 31 | + Number of chipselect. Indicate on the davinci_nand driver which |
| 32 | + chipselect is used for accessing the nand. |
| 33 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 34 | + enum: [0, 1, 2, 3] |
| 35 | + |
| 36 | + ti,davinci-mask-ale: |
| 37 | + description: |
| 38 | + Mask for ALE. Needed for executing address phase. These offset will be |
| 39 | + added to the base address for the chip select space the NAND Flash |
| 40 | + device is connected to. |
| 41 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 42 | + default: 0x08 |
| 43 | + |
| 44 | + ti,davinci-mask-cle: |
| 45 | + description: |
| 46 | + Mask for CLE. Needed for executing command phase. These offset will be |
| 47 | + added to the base address for the chip select space the NAND Flash device |
| 48 | + is connected to. |
| 49 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 50 | + default: 0x10 |
| 51 | + |
| 52 | + ti,davinci-mask-chipsel: |
| 53 | + description: |
| 54 | + Mask for chipselect address. Needed to mask addresses for given |
| 55 | + chipselect. |
| 56 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 57 | + default: 0 |
| 58 | + |
| 59 | + ti,davinci-ecc-bits: |
| 60 | + description: Used ECC bits. |
| 61 | + enum: [1, 4] |
| 62 | + |
| 63 | + ti,davinci-ecc-mode: |
| 64 | + description: Operation mode of the NAND ECC mode. |
| 65 | + $ref: /schemas/types.yaml#/definitions/string |
| 66 | + enum: [none, soft, hw, on-die] |
| 67 | + deprecated: true |
| 68 | + |
| 69 | + ti,davinci-nand-buswidth: |
| 70 | + description: Bus width to the NAND chip. |
| 71 | + $ref: /schemas/types.yaml#/definitions/uint32 |
| 72 | + enum: [8, 16] |
| 73 | + default: 8 |
| 74 | + deprecated: true |
| 75 | + |
| 76 | + ti,davinci-nand-use-bbt: |
| 77 | + type: boolean |
| 78 | + description: |
| 79 | + Use flash based bad block table support. OOB identifier is saved in OOB |
| 80 | + area. |
| 81 | + deprecated: true |
| 82 | + |
| 83 | +required: |
| 84 | + - compatible |
| 85 | + - reg |
| 86 | + - ti,davinci-chipselect |
| 87 | + |
| 88 | +unevaluatedProperties: false |
| 89 | + |
| 90 | +examples: |
| 91 | + - | |
| 92 | + bus { |
| 93 | + #address-cells = <2>; |
| 94 | + #size-cells = <1>; |
| 95 | +
|
| 96 | + nand-controller@2000000,0 { |
| 97 | + compatible = "ti,davinci-nand"; |
| 98 | + #address-cells = <1>; |
| 99 | + #size-cells = <0>; |
| 100 | + reg = <0 0x02000000 0x02000000>, |
| 101 | + <1 0x00000000 0x00008000>; |
| 102 | +
|
| 103 | + ti,davinci-chipselect = <1>; |
| 104 | + ti,davinci-mask-ale = <0>; |
| 105 | + ti,davinci-mask-cle = <0>; |
| 106 | + ti,davinci-mask-chipsel = <0>; |
| 107 | +
|
| 108 | + ti,davinci-nand-buswidth = <16>; |
| 109 | + ti,davinci-ecc-mode = "hw"; |
| 110 | + ti,davinci-ecc-bits = <4>; |
| 111 | + ti,davinci-nand-use-bbt; |
| 112 | +
|
| 113 | + partitions { |
| 114 | + compatible = "fixed-partitions"; |
| 115 | + #address-cells = <1>; |
| 116 | + #size-cells = <1>; |
| 117 | +
|
| 118 | + partition@0 { |
| 119 | + label = "u-boot env"; |
| 120 | + reg = <0 0x020000>; |
| 121 | + }; |
| 122 | + }; |
| 123 | + }; |
| 124 | + }; |
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