70 lines
1.4 KiB
YAML
70 lines
1.4 KiB
YAML
|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/eeprom/microchip,93lc46b.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Microchip 93xx46 SPI compatible EEPROM family dt bindings
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Cory Tusar <cory.tusar@pid1solutions.com>
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
enum:
|
||
|
|
- atmel,at93c46
|
||
|
|
- atmel,at93c46d
|
||
|
|
- atmel,at93c56
|
||
|
|
- atmel,at93c66
|
||
|
|
- eeprom-93xx46
|
||
|
|
- microchip,93lc46b
|
||
|
|
|
||
|
|
data-size:
|
||
|
|
description: number of data bits per word
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
enum: [8, 16]
|
||
|
|
|
||
|
|
reg:
|
||
|
|
description: chip select of EEPROM
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
read-only:
|
||
|
|
description:
|
||
|
|
parameter-less property which disables writes to the EEPROM
|
||
|
|
type: boolean
|
||
|
|
|
||
|
|
select-gpios:
|
||
|
|
description:
|
||
|
|
specifies the GPIO that needs to be asserted prior to each access
|
||
|
|
of EEPROM (e.g. for SPI bus multiplexing)
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- data-size
|
||
|
|
- spi-max-frequency
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: /schemas/spi/spi-peripheral-props.yaml#
|
||
|
|
|
||
|
|
unevaluatedProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/gpio/gpio.h>
|
||
|
|
|
||
|
|
spi {
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
|
||
|
|
eeprom@0 {
|
||
|
|
compatible = "eeprom-93xx46";
|
||
|
|
reg = <0>;
|
||
|
|
spi-max-frequency = <1000000>;
|
||
|
|
spi-cs-high;
|
||
|
|
data-size = <8>;
|
||
|
|
select-gpios = <&gpio4 4 GPIO_ACTIVE_HIGH>;
|
||
|
|
};
|
||
|
|
};
|