Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | |
| 7 | title: Rockchip SoCs NAND FLASH Controller (NFC) |
| 8 | |
| 9 | allOf: |
| 10 | - $ref: nand-controller.yaml# |
| 11 | |
| 12 | maintainers: |
| 13 | - Heiko Stuebner <heiko@sntech.de> |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | oneOf: |
| 18 | - const: rockchip,px30-nfc |
| 19 | - const: rockchip,rk2928-nfc |
| 20 | - const: rockchip,rv1108-nfc |
| 21 | - items: |
| 22 | - enum: |
| 23 | - rockchip,rk3036-nfc |
| 24 | - rockchip,rk3128-nfc |
| 25 | - const: rockchip,rk2928-nfc |
| 26 | - items: |
| 27 | - const: rockchip,rk3308-nfc |
| 28 | - const: rockchip,rv1108-nfc |
| 29 | |
| 30 | reg: |
| 31 | maxItems: 1 |
| 32 | |
| 33 | interrupts: |
| 34 | maxItems: 1 |
| 35 | |
| 36 | clocks: |
| 37 | minItems: 1 |
| 38 | items: |
| 39 | - description: Bus Clock |
| 40 | - description: Module Clock |
| 41 | |
| 42 | clock-names: |
| 43 | minItems: 1 |
| 44 | items: |
| 45 | - const: ahb |
| 46 | - const: nfc |
| 47 | |
| 48 | assigned-clocks: |
| 49 | maxItems: 1 |
| 50 | |
| 51 | assigned-clock-rates: |
| 52 | maxItems: 1 |
| 53 | |
| 54 | power-domains: |
| 55 | maxItems: 1 |
| 56 | |
| 57 | patternProperties: |
| 58 | "^nand@[0-7]$": |
| 59 | type: object |
| 60 | $ref: raw-nand-chip.yaml |
| 61 | properties: |
| 62 | reg: |
| 63 | minimum: 0 |
| 64 | maximum: 7 |
| 65 | |
| 66 | nand-ecc-mode: |
| 67 | const: hw |
| 68 | |
| 69 | nand-ecc-step-size: |
| 70 | const: 1024 |
| 71 | |
| 72 | nand-ecc-strength: |
| 73 | enum: [16, 24, 40, 60, 70] |
| 74 | description: | |
| 75 | The ECC configurations that can be supported are as follows. |
| 76 | NFC v600 ECC 16, 24, 40, 60 |
| 77 | RK2928, RK3066, RK3188 |
| 78 | |
| 79 | NFC v622 ECC 16, 24, 40, 60 |
| 80 | RK3036, RK3128 |
| 81 | |
| 82 | NFC v800 ECC 16 |
| 83 | RK3308, RV1108 |
| 84 | |
| 85 | NFC v900 ECC 16, 40, 60, 70 |
| 86 | RK3326, PX30 |
| 87 | |
| 88 | nand-bus-width: |
| 89 | const: 8 |
| 90 | |
| 91 | rockchip,boot-blks: |
| 92 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 93 | minimum: 2 |
| 94 | default: 16 |
| 95 | description: |
| 96 | The NFC driver need this information to select ECC |
| 97 | algorithms supported by the boot ROM. |
| 98 | Only used in combination with 'nand-is-boot-medium'. |
| 99 | |
| 100 | rockchip,boot-ecc-strength: |
| 101 | enum: [16, 24, 40, 60, 70] |
| 102 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 103 | description: | |
| 104 | If specified it indicates that a different BCH/ECC setting is |
| 105 | supported by the boot ROM. |
| 106 | NFC v600 ECC 16, 24 |
| 107 | RK2928, RK3066, RK3188 |
| 108 | |
| 109 | NFC v622 ECC 16, 24, 40, 60 |
| 110 | RK3036, RK3128 |
| 111 | |
| 112 | NFC v800 ECC 16 |
| 113 | RK3308, RV1108 |
| 114 | |
| 115 | NFC v900 ECC 16, 70 |
| 116 | RK3326, PX30 |
| 117 | |
| 118 | Only used in combination with 'nand-is-boot-medium'. |
| 119 | |
| 120 | unevaluatedProperties: false |
| 121 | |
| 122 | required: |
| 123 | - compatible |
| 124 | - reg |
| 125 | - interrupts |
| 126 | - clocks |
| 127 | - clock-names |
| 128 | |
| 129 | unevaluatedProperties: false |
| 130 | |
| 131 | examples: |
| 132 | - | |
| 133 | #include <dt-bindings/clock/rk3308-cru.h> |
| 134 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 135 | nfc: nand-controller@ff4b0000 { |
| 136 | compatible = "rockchip,rk3308-nfc", |
| 137 | "rockchip,rv1108-nfc"; |
| 138 | reg = <0xff4b0000 0x4000>; |
| 139 | interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>; |
| 140 | clocks = <&cru HCLK_NANDC>, <&cru SCLK_NANDC>; |
| 141 | clock-names = "ahb", "nfc"; |
| 142 | assigned-clocks = <&clks SCLK_NANDC>; |
| 143 | assigned-clock-rates = <150000000>; |
| 144 | |
| 145 | pinctrl-0 = <&flash_ale &flash_bus8 &flash_cle &flash_csn0 |
| 146 | &flash_rdn &flash_rdy &flash_wrn>; |
| 147 | pinctrl-names = "default"; |
| 148 | |
| 149 | #address-cells = <1>; |
| 150 | #size-cells = <0>; |
| 151 | |
| 152 | nand@0 { |
| 153 | reg = <0>; |
| 154 | label = "rk-nand"; |
| 155 | nand-bus-width = <8>; |
| 156 | nand-ecc-mode = "hw"; |
| 157 | nand-ecc-step-size = <1024>; |
| 158 | nand-ecc-strength = <16>; |
| 159 | nand-is-boot-medium; |
| 160 | rockchip,boot-blks = <8>; |
| 161 | rockchip,boot-ecc-strength = <16>; |
| 162 | }; |
| 163 | }; |
| 164 | |
| 165 | ... |