blob: 144e86ce5c0a3274ffa496059819e192e08b55eb (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
# 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
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#
- $ref: /schemas/nvmem/nvmem.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>;
};
};
|
