| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/mtd/rockchip,nand-controller.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Rockchip SoCs NAND FLASH Controller (NFC) |
| |
| allOf: |
| - $ref: "nand-controller.yaml#" |
| |
| maintainers: |
| - Heiko Stuebner <heiko@sntech.de> |
| |
| properties: |
| compatible: |
| oneOf: |
| - const: rockchip,px30-nfc |
| - const: rockchip,rk2928-nfc |
| - const: rockchip,rv1108-nfc |
| - items: |
| - const: rockchip,rk3036-nfc |
| - const: rockchip,rk2928-nfc |
| - items: |
| - const: rockchip,rk3308-nfc |
| - const: rockchip,rv1108-nfc |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| minItems: 1 |
| items: |
| - description: Bus Clock |
| - description: Module Clock |
| |
| clock-names: |
| minItems: 1 |
| items: |
| - const: ahb |
| - const: nfc |
| |
| assigned-clocks: |
| maxItems: 1 |
| |
| assigned-clock-rates: |
| maxItems: 1 |
| |
| power-domains: |
| maxItems: 1 |
| |
| patternProperties: |
| "^nand@[0-7]$": |
| type: object |
| properties: |
| reg: |
| minimum: 0 |
| maximum: 7 |
| |
| nand-ecc-mode: |
| const: hw |
| |
| nand-ecc-step-size: |
| const: 1024 |
| |
| nand-ecc-strength: |
| enum: [16, 24, 40, 60, 70] |
| description: | |
| The ECC configurations that can be supported are as follows. |
| NFC v600 ECC 16, 24, 40, 60 |
| RK2928, RK3066, RK3188 |
| |
| NFC v622 ECC 16, 24, 40, 60 |
| RK3036, RK3128 |
| |
| NFC v800 ECC 16 |
| RK3308, RV1108 |
| |
| NFC v900 ECC 16, 40, 60, 70 |
| RK3326, PX30 |
| |
| nand-bus-width: |
| const: 8 |
| |
| rockchip,boot-blks: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 2 |
| default: 16 |
| description: |
| The NFC driver need this information to select ECC |
| algorithms supported by the boot ROM. |
| Only used in combination with 'nand-is-boot-medium'. |
| |
| rockchip,boot-ecc-strength: |
| enum: [16, 24, 40, 60, 70] |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| description: | |
| If specified it indicates that a different BCH/ECC setting is |
| supported by the boot ROM. |
| NFC v600 ECC 16, 24 |
| RK2928, RK3066, RK3188 |
| |
| NFC v622 ECC 16, 24, 40, 60 |
| RK3036, RK3128 |
| |
| NFC v800 ECC 16 |
| RK3308, RV1108 |
| |
| NFC v900 ECC 16, 70 |
| RK3326, PX30 |
| |
| Only used in combination with 'nand-is-boot-medium'. |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| - clocks |
| - clock-names |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/clock/rk3308-cru.h> |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| nfc: nand-controller@ff4b0000 { |
| compatible = "rockchip,rk3308-nfc", |
| "rockchip,rv1108-nfc"; |
| reg = <0xff4b0000 0x4000>; |
| interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>; |
| clocks = <&cru HCLK_NANDC>, <&cru SCLK_NANDC>; |
| clock-names = "ahb", "nfc"; |
| assigned-clocks = <&clks SCLK_NANDC>; |
| assigned-clock-rates = <150000000>; |
| |
| pinctrl-0 = <&flash_ale &flash_bus8 &flash_cle &flash_csn0 |
| &flash_rdn &flash_rdy &flash_wrn>; |
| pinctrl-names = "default"; |
| |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| nand@0 { |
| reg = <0>; |
| label = "rk-nand"; |
| nand-bus-width = <8>; |
| nand-ecc-mode = "hw"; |
| nand-ecc-step-size = <1024>; |
| nand-ecc-strength = <16>; |
| nand-is-boot-medium; |
| rockchip,boot-blks = <8>; |
| rockchip,boot-ecc-strength = <16>; |
| }; |
| }; |
| |
| ... |
