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