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# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2008-2011 Freescale Semiconductor Inc.
%YAML 1.2
---
$id: http://devicetree.org/schemas/crypto/fsl,sec-v4.0-mon.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale Secure Non-Volatile Storage (SNVS)
maintainers:
- '"Horia Geantă" <horia.geanta@nxp.com>'
- Pankaj Gupta <pankaj.gupta@nxp.com>
- Gaurav Jain <gaurav.jain@nxp.com>
description:
Node defines address range and the associated interrupt for the SNVS function.
This function monitors security state information & reports security
violations. This also included rtc, system power off and ON/OFF key.
properties:
compatible:
oneOf:
- items:
- const: fsl,sec-v4.0-mon
- const: syscon
- const: simple-mfd
- items:
- const: fsl,sec-v5.0-mon
- const: fsl,sec-v4.0-mon
- items:
- enum:
- fsl,sec-v5.3-mon
- fsl,sec-v5.4-mon
- const: fsl,sec-v5.0-mon
- const: fsl,sec-v4.0-mon
reg:
maxItems: 1
interrupts:
maxItems: 2
snvs-rtc-lp:
type: object
additionalProperties: false
description:
Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node
properties:
compatible:
const: fsl,sec-v4.0-mon-rtc-lp
clocks:
maxItems: 1
clock-names:
const: snvs-rtc
interrupts:
# VFxxx has only one. What is the 2nd one?
minItems: 1
maxItems: 2
regmap:
description: Parent node containing registers
$ref: /schemas/types.yaml#/definitions/phandle
offset:
description: LP register offset
$ref: /schemas/types.yaml#/definitions/uint32
default: 0x34
required:
- compatible
- interrupts
- regmap
snvs-powerkey:
type: object
additionalProperties: false
description:
The snvs-pwrkey is designed to enable POWER key function which controlled
by SNVS ONOFF, the driver can report the status of POWER key and wakeup
system if pressed after system suspend.
properties:
compatible:
const: fsl,sec-v4.0-pwrkey
clocks:
maxItems: 1
clock-names:
const: snvs-pwrkey
interrupts:
maxItems: 1
regmap:
description: Parent node containing registers
$ref: /schemas/types.yaml#/definitions/phandle
wakeup-source: true
linux,keycode:
$ref: /schemas/types.yaml#/definitions/uint32
default: 116
deprecated: true
linux,keycodes:
maxItems: 1
default: 116
required:
- compatible
- interrupts
- regmap
snvs-lpgpr:
$ref: /schemas/nvmem/snvs-lpgpr.yaml#
snvs-poweroff:
description:
The SNVS could drive signal to PMIC to turn off system power by setting
SNVS_LP LPCR register.
$ref: /schemas/power/reset/syscon-poweroff.yaml#
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/imx7d-clock.h>
sec_mon: sec-mon@314000 {
compatible = "fsl,sec-v4.0-mon", "syscon", "simple-mfd";
reg = <0x314000 0x1000>;
snvs-rtc-lp {
compatible = "fsl,sec-v4.0-mon-rtc-lp";
regmap = <&sec_mon>;
offset = <0x34>;
clocks = <&clks IMX7D_SNVS_CLK>;
clock-names = "snvs-rtc";
interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
};
snvs-powerkey {
compatible = "fsl,sec-v4.0-pwrkey";
regmap = <&sec_mon>;
clocks = <&clks IMX7D_SNVS_CLK>;
clock-names = "snvs-pwrkey";
interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
linux,keycode = <116>; /* KEY_POWER */
wakeup-source;
};
};
|
