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Diffstat (limited to 'Documentation/devicetree/bindings/mtd/nand-chip.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/mtd/nand-chip.yaml | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/nand-chip.yaml b/Documentation/devicetree/bindings/mtd/nand-chip.yaml new file mode 100644 index 000000000000..97ac3a3fbb52 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/nand-chip.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mtd/nand-chip.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NAND Chip and NAND Controller Generic Binding + +maintainers: + - Miquel Raynal <miquel.raynal@bootlin.com> + +description: | + This file covers the generic description of a NAND chip. It implies that the + bus interface should not be taken into account: both raw NAND devices and + SPI-NAND devices are concerned by this description. + +properties: + reg: + description: + Contains the chip-select IDs. + + nand-ecc-engine: + description: | + A phandle on the hardware ECC engine if any. There are + basically three possibilities: + 1/ The ECC engine is part of the NAND controller, in this + case the phandle should reference the parent node. + 2/ The ECC engine is part of the NAND part (on-die), in this + case the phandle should reference the node itself. + 3/ The ECC engine is external, in this case the phandle should + reference the specific ECC engine node. + $ref: /schemas/types.yaml#/definitions/phandle + + nand-use-soft-ecc-engine: + description: Use a software ECC engine. + type: boolean + + nand-no-ecc-engine: + description: Do not use any ECC correction. + type: boolean + + nand-ecc-algo: + description: + Desired ECC algorithm. + $ref: /schemas/types.yaml#/definitions/string + enum: [hamming, bch, rs] + + nand-ecc-strength: + description: + Maximum number of bits that can be corrected per ECC step. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + + nand-ecc-step-size: + description: + Number of data bytes covered by a single ECC step. + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + + secure-regions: + description: + Regions in the NAND chip which are protected using a secure element + like Trustzone. This property contains the start address and size of + the secure regions present. + $ref: /schemas/types.yaml#/definitions/uint64-matrix + +required: + - reg + +additionalProperties: true |