| # 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: | |
| - $ref: nand-controller.yaml# | |
| maintainers: | |
| - Heiko Stuebner <heiko@sntech.de> | |
| properties: | |
| compatible: | |
| oneOf: | |
| - const: rockchip,px30-nfc | |
| - const: rockchip,rk2928-nfc | |
| - const: rockchip,rv1108-nfc | |
| - items: | |
| - enum: | |
| - rockchip,rk3036-nfc | |
| - rockchip,rk3128-nfc | |
| - const: rockchip,rk2928-nfc | |
| - items: | |
| - const: rockchip,rk3308-nfc | |
| - const: rockchip,rv1108-nfc | |
| reg: | |
| maxItems: 1 | |
| interrupts: | |
| maxItems: 1 | |
| clocks: | |
| minItems: 1 | |
| items: | |
| - description: Bus Clock | |
| - description: Module Clock | |
| clock-names: | |
| minItems: 1 | |
| items: | |
| - const: ahb | |
| - const: nfc | |
| assigned-clocks: | |
| maxItems: 1 | |
| assigned-clock-rates: | |
| maxItems: 1 | |
| power-domains: | |
| maxItems: 1 | |
| patternProperties: | |
| "^nand@[0-7]$": | |
| type: object | |
| $ref: raw-nand-chip.yaml | |
| 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'. | |
| unevaluatedProperties: false | |
| 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>; | |
| }; | |
| }; | |
| ... |