Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
53 lines
1.4 KiB
YAML
53 lines
1.4 KiB
YAML
# 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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$id: http://devicetree.org/schemas/power/reset/toradex,smarc-ec.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Toradex Embedded Controller
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maintainers:
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- Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
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- Francesco Dolcini <francesco.dolcini@toradex.com>
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description: |
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The Toradex Embedded Controller (EC) is used on Toradex SMARC modules,
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primarily to manage power and reset functionalities.
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The EC provides the following functions:
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- Reads the SMARC POWER_BTN# and RESET_IN# signals and controls the PMIC accordingly.
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- Controls the SoC boot mode signals based on the SMARC BOOT_SEL# and FORCE_RECOV# inputs.
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- Manages the CARRIER_STDBY# signal in response to relevant SoC signals.
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The EC runs a small firmware, factory programmed into its internal flash, and communicates over I2C.
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It allows software to control power-off and reset functionalities of the module.
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properties:
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compatible:
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items:
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- enum:
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- toradex,smarc-imx95-ec
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- toradex,smarc-imx8mp-ec
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- const: toradex,smarc-ec
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reg:
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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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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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reset-controller@28 {
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compatible = "toradex,smarc-imx95-ec", "toradex,smarc-ec";
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reg = <0x28>;
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};
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};
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