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