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150 lines
3.1 KiB
150 lines
3.1 KiB
# 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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$id: http://devicetree.org/schemas/mtd/denali,nand.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Denali NAND controller |
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maintainers: |
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- Masahiro Yamada <[email protected]> |
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properties: |
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compatible: |
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enum: |
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- altr,socfpga-denali-nand |
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- socionext,uniphier-denali-nand-v5a |
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- socionext,uniphier-denali-nand-v5b |
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reg-names: |
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description: | |
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There are two register regions: |
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nand_data: host data/command interface |
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denali_reg: register interface |
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items: |
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- const: nand_data |
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- const: denali_reg |
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reg: |
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minItems: 2 |
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maxItems: 2 |
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interrupts: |
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maxItems: 1 |
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clock-names: |
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description: | |
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There are three clocks: |
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nand: controller core clock |
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nand_x: bus interface clock |
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ecc: ECC circuit clock |
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items: |
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- const: nand |
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- const: nand_x |
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- const: ecc |
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clocks: |
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minItems: 3 |
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maxItems: 3 |
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reset-names: |
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description: | |
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There are two optional resets: |
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nand: controller core reset |
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reg: register reset |
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oneOf: |
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- items: |
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- const: nand |
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- const: reg |
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- const: nand |
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- const: reg |
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resets: |
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minItems: 1 |
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maxItems: 2 |
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allOf: |
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- $ref: nand-controller.yaml |
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- if: |
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properties: |
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compatible: |
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contains: |
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const: altr,socfpga-denali-nand |
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then: |
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patternProperties: |
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"^nand@[a-f0-9]$": |
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type: object |
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properties: |
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nand-ecc-strength: |
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enum: |
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- 8 |
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- 15 |
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nand-ecc-step-size: |
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enum: |
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- 512 |
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- if: |
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properties: |
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compatible: |
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contains: |
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const: socionext,uniphier-denali-nand-v5a |
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then: |
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patternProperties: |
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"^nand@[a-f0-9]$": |
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type: object |
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properties: |
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nand-ecc-strength: |
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enum: |
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- 8 |
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- 16 |
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- 24 |
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nand-ecc-step-size: |
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enum: |
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- 1024 |
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- if: |
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properties: |
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compatible: |
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contains: |
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const: socionext,uniphier-denali-nand-v5b |
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then: |
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patternProperties: |
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"^nand@[a-f0-9]$": |
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type: object |
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properties: |
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nand-ecc-strength: |
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enum: |
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- 8 |
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- 16 |
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nand-ecc-step-size: |
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enum: |
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- 1024 |
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required: |
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- compatible |
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- reg |
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- interrupts |
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- clock-names |
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- clocks |
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unevaluatedProperties: false |
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examples: |
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- | |
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nand-controller@ff900000 { |
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compatible = "altr,socfpga-denali-nand"; |
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reg-names = "nand_data", "denali_reg"; |
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reg = <0xff900000 0x20>, <0xffb80000 0x1000>; |
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interrupts = <0 144 4>; |
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clock-names = "nand", "nand_x", "ecc"; |
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clocks = <&nand_clk>, <&nand_x_clk>, <&nand_ecc_clk>; |
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reset-names = "nand", "reg"; |
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resets = <&nand_rst>, <&nand_reg_rst>; |
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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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}; |
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};
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