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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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eff4e04c89
Add devicetree binding document for Loongson-1 NAND controller. Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
73 lines
1.5 KiB
YAML
73 lines
1.5 KiB
YAML
# 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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$id: http://devicetree.org/schemas/mtd/loongson,ls1b-nand-controller.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Loongson-1 NAND Controller
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maintainers:
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- Keguang Zhang <keguang.zhang@gmail.com>
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description:
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The Loongson-1 NAND controller abstracts all supported operations,
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meaning it does not support low-level access to raw NAND flash chips.
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Moreover, the controller is paired with the DMA engine to perform
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READ and PROGRAM functions.
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allOf:
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- $ref: nand-controller.yaml
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properties:
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compatible:
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oneOf:
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- enum:
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- loongson,ls1b-nand-controller
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- loongson,ls1c-nand-controller
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- items:
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- enum:
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- loongson,ls1a-nand-controller
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- const: loongson,ls1b-nand-controller
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reg:
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maxItems: 2
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reg-names:
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items:
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- const: nand
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- const: nand-dma
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dmas:
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maxItems: 1
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dma-names:
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const: rxtx
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required:
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- compatible
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- reg
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- reg-names
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- dmas
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- dma-names
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unevaluatedProperties: false
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examples:
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- |
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nand-controller@1fe78000 {
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compatible = "loongson,ls1b-nand-controller";
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reg = <0x1fe78000 0x24>, <0x1fe78040 0x4>;
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reg-names = "nand", "nand-dma";
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dmas = <&dma 0>;
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dma-names = "rxtx";
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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 = "ls1x-nand";
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nand-use-soft-ecc-engine;
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nand-ecc-algo = "hamming";
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};
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};
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