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Diffstat (limited to 'Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml')
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1 files changed, 162 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml new file mode 100644 index 000000000000..e879bc0be8e2 --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml @@ -0,0 +1,162 @@ +# 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; + }; + }; |