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70 lines
1.4 KiB
70 lines
1.4 KiB
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/misc/eeprom-93xx46.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Microchip 93xx46 SPI compatible EEPROM family dt bindings |
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maintainers: |
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- Cory Tusar <[email protected]> |
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properties: |
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compatible: |
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enum: |
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- atmel,at93c46 |
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- atmel,at93c46d |
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- atmel,at93c56 |
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- atmel,at93c66 |
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- eeprom-93xx46 |
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- microchip,93lc46b |
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data-size: |
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description: number of data bits per word |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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enum: [8, 16] |
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reg: |
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description: chip select of EEPROM |
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maxItems: 1 |
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spi-max-frequency: true |
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spi-cs-high: true |
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read-only: |
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description: |
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parameter-less property which disables writes to the EEPROM |
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type: boolean |
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select-gpios: |
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description: |
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specifies the GPIO that needs to be asserted prior to each access |
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of EEPROM (e.g. for SPI bus multiplexing) |
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maxItems: 1 |
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required: |
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- compatible |
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- reg |
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- data-size |
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- spi-max-frequency |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/gpio/gpio.h> |
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spi { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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eeprom@0 { |
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compatible = "eeprom-93xx46"; |
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reg = <0>; |
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spi-max-frequency = <1000000>; |
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spi-cs-high; |
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data-size = <8>; |
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select-gpios = <&gpio4 4 GPIO_ACTIVE_HIGH>; |
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}; |
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};
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