48 lines
1.3 KiB
YAML
48 lines
1.3 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/reset/st,stih407-picophyreset.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: STMicroelectronics STi family Sysconfig Picophy SoftReset Controller
|
|
|
|
maintainers:
|
|
- Peter Griffin <peter.griffin@linaro.org>
|
|
|
|
description: |
|
|
This binding describes a reset controller device that is used to enable and
|
|
disable on-chip PicoPHY USB2 phy(s) using "softreset" control bits found in
|
|
the STi family SoC system configuration registers.
|
|
|
|
The actual action taken when softreset is asserted is hardware dependent.
|
|
However, when asserted it may not be possible to access the hardware's
|
|
registers and after an assert/deassert sequence the hardware's previous state
|
|
may no longer be valid.
|
|
|
|
properties:
|
|
compatible:
|
|
const: st,stih407-picophyreset
|
|
|
|
'#reset-cells':
|
|
const: 1
|
|
|
|
required:
|
|
- compatible
|
|
- '#reset-cells'
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/reset/stih407-resets.h>
|
|
|
|
picophyreset: picophyreset-controller {
|
|
compatible = "st,stih407-picophyreset";
|
|
#reset-cells = <1>;
|
|
};
|
|
|
|
// Specifying picophyreset control of devices
|
|
usb2_picophy0: usbpicophy {
|
|
resets = <&picophyreset STIH407_PICOPHY0_RESET>;
|
|
};
|