tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/power/reset/toradex,smarc-ec.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Toradex Embedded Controller
8
9maintainers:
10 - Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
11 - Francesco Dolcini <francesco.dolcini@toradex.com>
12
13description: |
14 The Toradex Embedded Controller (EC) is used on Toradex SMARC modules,
15 primarily to manage power and reset functionalities.
16
17 The EC provides the following functions:
18 - Reads the SMARC POWER_BTN# and RESET_IN# signals and controls the PMIC accordingly.
19 - Controls the SoC boot mode signals based on the SMARC BOOT_SEL# and FORCE_RECOV# inputs.
20 - Manages the CARRIER_STDBY# signal in response to relevant SoC signals.
21
22 The EC runs a small firmware, factory programmed into its internal flash, and communicates over I2C.
23 It allows software to control power-off and reset functionalities of the module.
24
25properties:
26 compatible:
27 items:
28 - enum:
29 - toradex,smarc-imx95-ec
30 - toradex,smarc-imx8mp-ec
31 - const: toradex,smarc-ec
32
33 reg:
34 maxItems: 1
35
36required:
37 - compatible
38 - reg
39
40additionalProperties: false
41
42examples:
43 - |
44 i2c {
45 #address-cells = <1>;
46 #size-cells = <0>;
47
48 reset-controller@28 {
49 compatible = "toradex,smarc-imx95-ec", "toradex,smarc-ec";
50 reg = <0x28>;
51 };
52 };