Convert Freescale CAAM/SEC4 binding to DT schema format. The 'fsl,sec-v4.0' and 'fsl,sec-v4.0-mon' parts are independent, so split them into separate schema files. Add a bunch of missing compatibles for v5.0, v5.4, etc. Drop unused 'ranges', '#address-cells', and '#size-cells' from fsl,sec-v4.0-mon nodes. There's one DTB warning for LS1012a which has a 2nd 'reg' entry for 'fsl,sec-v4.0-rtic'. Leaving that as there is no clue as to what it is for. Signed-off-by: Rob Herring <robh@xxxxxxxxxx> --- .../bindings/crypto/fsl,sec-v4.0-mon.yaml | 150 +++++ .../bindings/crypto/fsl,sec-v4.0.yaml | 266 +++++++++ .../devicetree/bindings/crypto/fsl-sec4.txt | 553 ------------------ 3 files changed, 416 insertions(+), 553 deletions(-) create mode 100644 Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml create mode 100644 Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml delete mode 100644 Documentation/devicetree/bindings/crypto/fsl-sec4.txt 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..353d9140dcea --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml @@ -0,0 +1,150 @@ +# 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@xxxxxxx>' + - Pankaj Gupta <pankaj.gupta@xxxxxxx> + - Gaurav Jain <gaurav.jain@xxxxxxx> + +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: + default: 116 + + required: + - compatible + - interrupts + - regmap + + snvs-lpgpr: + $ref: /schemas/nvmem/snvs-lpgpr.yaml# + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/imx7d-clock.h> + + sec_mon: sec-mon@314000 { + compatible = "fsl,sec-v4.0-mon", "syscon", "simple-mfd"; + reg = <0x314000 0x1000>; + + snvs-rtc-lp { + compatible = "fsl,sec-v4.0-mon-rtc-lp"; + regmap = <&sec_mon>; + offset = <0x34>; + clocks = <&clks IMX7D_SNVS_CLK>; + clock-names = "snvs-rtc"; + interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>; + }; + + snvs-powerkey { + compatible = "fsl,sec-v4.0-pwrkey"; + regmap = <&sec_mon>; + clocks = <&clks IMX7D_SNVS_CLK>; + clock-names = "snvs-pwrkey"; + interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>; + linux,keycode = <116>; /* KEY_POWER */ + wakeup-source; + }; + }; diff --git a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml new file mode 100644 index 000000000000..0a9ed2848b7c --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml @@ -0,0 +1,266 @@ +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2008-2011 Freescale Semiconductor Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/crypto/fsl,sec-v4.0.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale SEC 4 + +maintainers: + - '"Horia Geantă" <horia.geanta@xxxxxxx>' + - Pankaj Gupta <pankaj.gupta@xxxxxxx> + - Gaurav Jain <gaurav.jain@xxxxxxx> + +description: | + NOTE: the SEC 4 is also known as Freescale's Cryptographic Accelerator + Accelerator and Assurance Module (CAAM). + + SEC 4 h/w can process requests from 2 types of sources. + 1. DPAA Queue Interface (HW interface between Queue Manager & SEC 4). + 2. Job Rings (HW interface between cores & SEC 4 registers). + + High Speed Data Path Configuration: + + HW interface between QM & SEC 4 and also BM & SEC 4, on DPAA-enabled parts + such as the P4080. The number of simultaneous dequeues the QI can make is + equal to the number of Descriptor Controller (DECO) engines in a particular + SEC version. E.g., the SEC 4.0 in the P4080 has 5 DECOs and can thus + dequeue from 5 subportals simultaneously. + + Job Ring Data Path Configuration: + + Each JR is located on a separate 4k page, they may (or may not) be made visible + in the memory partition devoted to a particular core. The P4080 has 4 JRs, so + up to 4 JRs can be configured; and all 4 JRs process requests in parallel. + +properties: + compatible: + oneOf: + - items: + - const: fsl,sec-v5.4 + - const: fsl,sec-v5.0 + - const: fsl,sec-v4.0 + - items: + - enum: + - fsl,imx6ul-caam + - fsl,sec-v5.0 + - const: fsl,sec-v4.0 + - const: fsl,sec-v4.0 + + reg: + maxItems: 1 + + ranges: + maxItems: 1 + + '#address-cells': + enum: [1, 2] + + '#size-cells': + enum: [1, 2] + + clocks: + minItems: 1 + maxItems: 4 + + clock-names: + minItems: 1 + maxItems: 4 + items: + enum: [mem, aclk, ipg, emi_slow] + + dma-coherent: true + + interrupts: + maxItems: 1 + + fsl,sec-era: + description: Defines the 'ERA' of the SEC device. + $ref: /schemas/types.yaml#/definitions/uint32 + +patternProperties: + '^jr@[0-9a-f]+$': + type: object + additionalProperties: false + description: + Job Ring (JR) Node. Defines data processing interface to SEC 4 across the + peripheral bus for purposes of processing cryptographic descriptors. The + specified address range can be made visible to one (or more) cores. The + interrupt defined for this node is controlled within the address range of + this node. + + properties: + compatible: + oneOf: + - items: + - const: fsl,sec-v5.4-job-ring + - const: fsl,sec-v5.0-job-ring + - const: fsl,sec-v4.0-job-ring + - items: + - const: fsl,sec-v5.0-job-ring + - const: fsl,sec-v4.0-job-ring + - const: fsl,sec-v4.0-job-ring + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + fsl,liodn: + description: + Specifies the LIODN to be used in conjunction with the ppid-to-liodn + table that specifies the PPID to LIODN mapping. Needed if the PAMU is + used. Value is a 12 bit value where value is a LIODN ID for this JR. + This property is normally set by boot firmware. + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 0xfff + + '^rtic@[0-9a-f]+$': + type: object + additionalProperties: false + description: + Run Time Integrity Check (RTIC) Node. Defines a register space that + contains up to 5 sets of addresses and their lengths (sizes) that will be + checked at run time. After an initial hash result is calculated, these + addresses are checked by HW to monitor any change. If any memory is + modified, a Security Violation is triggered (see SNVS definition). + + properties: + compatible: + oneOf: + - items: + - const: fsl,sec-v5.4-rtic + - const: fsl,sec-v5.0-rtic + - const: fsl,sec-v4.0-rtic + - const: fsl,sec-v4.0-rtic + + reg: + maxItems: 1 + + ranges: + maxItems: 1 + + interrupts: + maxItems: 1 + + '#address-cells': + const: 1 + + '#size-cells': + const: 1 + + patternProperties: + '^rtic-[a-z]@[0-9a-f]+$': + type: object + additionalProperties: false + description: + Run Time Integrity Check (RTIC) Memory Node defines individual RTIC + memory regions that are used to perform run-time integrity check of + memory areas that should not modified. The node defines a register + that contains the memory address & length (combined) and a second + register that contains the hash result in big endian format. + + properties: + compatible: + oneOf: + - items: + - const: fsl,sec-v5.4-rtic-memory + - const: fsl,sec-v5.0-rtic-memory + - const: fsl,sec-v4.0-rtic-memory + - const: fsl,sec-v4.0-rtic-memory + + reg: + items: + - description: RTIC memory address + - description: RTIC hash result + + fsl,liodn: + description: + Specifies the LIODN to be used in conjunction with the + ppid-to-liodn table that specifies the PPID to LIODN mapping. + Needed if the PAMU is used. Value is a 12 bit value where value + is a LIODN ID for this JR. This property is normally set by boot + firmware. + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 0xfff + + fsl,rtic-region: + description: + Specifies the HW address (36 bit address) for this region + followed by the length of the HW partition to be checked; + the address is represented as a 64 bit quantity followed + by a 32 bit length. + $ref: /schemas/types.yaml#/definitions/uint32-array + +required: + - compatible + - reg + - ranges + +additionalProperties: false + +examples: + - | + crypto@300000 { + compatible = "fsl,sec-v4.0"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x300000 0x10000>; + ranges = <0 0x300000 0x10000>; + interrupts = <92 2>; + + jr@1000 { + compatible = "fsl,sec-v4.0-job-ring"; + reg = <0x1000 0x1000>; + interrupts = <88 2>; + }; + + jr@2000 { + compatible = "fsl,sec-v4.0-job-ring"; + reg = <0x2000 0x1000>; + interrupts = <89 2>; + }; + + jr@3000 { + compatible = "fsl,sec-v4.0-job-ring"; + reg = <0x3000 0x1000>; + interrupts = <90 2>; + }; + + jr@4000 { + compatible = "fsl,sec-v4.0-job-ring"; + reg = <0x4000 0x1000>; + interrupts = <91 2>; + }; + + rtic@6000 { + compatible = "fsl,sec-v4.0-rtic"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x6000 0x100>; + ranges = <0x0 0x6100 0xe00>; + + rtic-a@0 { + compatible = "fsl,sec-v4.0-rtic-memory"; + reg = <0x00 0x20>, <0x100 0x80>; + }; + + rtic-b@20 { + compatible = "fsl,sec-v4.0-rtic-memory"; + reg = <0x20 0x20>, <0x200 0x80>; + }; + + rtic-c@40 { + compatible = "fsl,sec-v4.0-rtic-memory"; + reg = <0x40 0x20>, <0x300 0x80>; + }; + + rtic-d@60 { + compatible = "fsl,sec-v4.0-rtic-memory"; + reg = <0x60 0x20>, <0x500 0x80>; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt deleted file mode 100644 index 8f359f473ada..000000000000 --- a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt +++ /dev/null @@ -1,553 +0,0 @@ -===================================================================== -SEC 4 Device Tree Binding -Copyright (C) 2008-2011 Freescale Semiconductor Inc. - - CONTENTS - -Overview - -SEC 4 Node - -Job Ring Node - -Run Time Integrity Check (RTIC) Node - -Run Time Integrity Check (RTIC) Memory Node - -Secure Non-Volatile Storage (SNVS) Node - -Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node - -Full Example - -NOTE: the SEC 4 is also known as Freescale's Cryptographic Accelerator -Accelerator and Assurance Module (CAAM). - -===================================================================== -Overview - -DESCRIPTION - -SEC 4 h/w can process requests from 2 types of sources. -1. DPAA Queue Interface (HW interface between Queue Manager & SEC 4). -2. Job Rings (HW interface between cores & SEC 4 registers). - -High Speed Data Path Configuration: - -HW interface between QM & SEC 4 and also BM & SEC 4, on DPAA-enabled parts -such as the P4080. The number of simultaneous dequeues the QI can make is -equal to the number of Descriptor Controller (DECO) engines in a particular -SEC version. E.g., the SEC 4.0 in the P4080 has 5 DECOs and can thus -dequeue from 5 subportals simultaneously. - -Job Ring Data Path Configuration: - -Each JR is located on a separate 4k page, they may (or may not) be made visible -in the memory partition devoted to a particular core. The P4080 has 4 JRs, so -up to 4 JRs can be configured; and all 4 JRs process requests in parallel. - -===================================================================== -SEC 4 Node - -Description - - Node defines the base address of the SEC 4 block. - This block specifies the address range of all global - configuration registers for the SEC 4 block. It - also receives interrupts from the Run Time Integrity Check - (RTIC) function within the SEC 4 block. - -PROPERTIES - - - compatible - Usage: required - Value type: <string> - Definition: Must include "fsl,sec-v4.0" - - - fsl,sec-era - Usage: optional - Value type: <u32> - Definition: A standard property. Define the 'ERA' of the SEC - device. - - - #address-cells - Usage: required - Value type: <u32> - Definition: A standard property. Defines the number of cells - for representing physical addresses in child nodes. - - - #size-cells - Usage: required - Value type: <u32> - Definition: A standard property. Defines the number of cells - for representing the size of physical addresses in - child nodes. - - - reg - Usage: required - Value type: <prop-encoded-array> - Definition: A standard property. Specifies the physical - address and length of the SEC4 configuration registers. - registers - - - ranges - Usage: required - Value type: <prop-encoded-array> - Definition: A standard property. Specifies the physical address - range of the SEC 4.0 register space (-SNVS not included). A - triplet that includes the child address, parent address, & - length. - - - interrupts - Usage: required - Value type: <prop_encoded-array> - Definition: Specifies the interrupts generated by this - device. The value of the interrupts property - consists of one interrupt specifier. The format - of the specifier is defined by the binding document - describing the node's interrupt parent. - - - clocks - Usage: required if SEC 4.0 requires explicit enablement of clocks - Value type: <prop_encoded-array> - Definition: A list of phandle and clock specifier pairs describing - the clocks required for enabling and disabling SEC 4.0. - - - clock-names - Usage: required if SEC 4.0 requires explicit enablement of clocks - Value type: <string> - Definition: A list of clock name strings in the same order as the - clocks property. - - Note: All other standard properties (see the Devicetree Specification) - are allowed but are optional. - - -EXAMPLE - -iMX6QDL/SX requires four clocks - - crypto@300000 { - compatible = "fsl,sec-v4.0"; - fsl,sec-era = <2>; - #address-cells = <1>; - #size-cells = <1>; - reg = <0x300000 0x10000>; - ranges = <0 0x300000 0x10000>; - interrupt-parent = <&mpic>; - interrupts = <92 2>; - clocks = <&clks IMX6QDL_CLK_CAAM_MEM>, - <&clks IMX6QDL_CLK_CAAM_ACLK>, - <&clks IMX6QDL_CLK_CAAM_IPG>, - <&clks IMX6QDL_CLK_EIM_SLOW>; - clock-names = "mem", "aclk", "ipg", "emi_slow"; - }; - - -iMX6UL does only require three clocks - - crypto: crypto@2140000 { - compatible = "fsl,sec-v4.0"; - #address-cells = <1>; - #size-cells = <1>; - reg = <0x2140000 0x3c000>; - ranges = <0 0x2140000 0x3c000>; - interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>; - - clocks = <&clks IMX6UL_CLK_CAAM_MEM>, - <&clks IMX6UL_CLK_CAAM_ACLK>, - <&clks IMX6UL_CLK_CAAM_IPG>; - clock-names = "mem", "aclk", "ipg"; - }; - -===================================================================== -Job Ring (JR) Node - - Child of the crypto node defines data processing interface to SEC 4 - across the peripheral bus for purposes of processing - cryptographic descriptors. The specified address - range can be made visible to one (or more) cores. - The interrupt defined for this node is controlled within - the address range of this node. - - - compatible - Usage: required - Value type: <string> - Definition: Must include "fsl,sec-v4.0-job-ring" - - - reg - Usage: required - Value type: <prop-encoded-array> - Definition: Specifies a two JR parameters: an offset from - the parent physical address and the length the JR registers. - - - fsl,liodn - Usage: optional-but-recommended - Value type: <prop-encoded-array> - Definition: - Specifies the LIODN to be used in conjunction with - the ppid-to-liodn table that specifies the PPID to LIODN mapping. - Needed if the PAMU is used. Value is a 12 bit value - where value is a LIODN ID for this JR. This property is - normally set by boot firmware. - - - interrupts - Usage: required - Value type: <prop_encoded-array> - Definition: Specifies the interrupts generated by this - device. The value of the interrupts property - consists of one interrupt specifier. The format - of the specifier is defined by the binding document - describing the node's interrupt parent. - -EXAMPLE - jr@1000 { - compatible = "fsl,sec-v4.0-job-ring"; - reg = <0x1000 0x1000>; - fsl,liodn = <0x081>; - interrupt-parent = <&mpic>; - interrupts = <88 2>; - }; - - -===================================================================== -Run Time Integrity Check (RTIC) Node - - Child node of the crypto node. Defines a register space that - contains up to 5 sets of addresses and their lengths (sizes) that - will be checked at run time. After an initial hash result is - calculated, these addresses are checked by HW to monitor any - change. If any memory is modified, a Security Violation is - triggered (see SNVS definition). - - - - compatible - Usage: required - Value type: <string> - Definition: Must include "fsl,sec-v4.0-rtic". - - - #address-cells - Usage: required - Value type: <u32> - Definition: A standard property. Defines the number of cells - for representing physical addresses in child nodes. Must - have a value of 1. - - - #size-cells - Usage: required - Value type: <u32> - Definition: A standard property. Defines the number of cells - for representing the size of physical addresses in - child nodes. Must have a value of 1. - - - reg - Usage: required - Value type: <prop-encoded-array> - Definition: A standard property. Specifies a two parameters: - an offset from the parent physical address and the length - the SEC4 registers. - - - ranges - Usage: required - Value type: <prop-encoded-array> - Definition: A standard property. Specifies the physical address - range of the SEC 4 register space (-SNVS not included). A - triplet that includes the child address, parent address, & - length. - -EXAMPLE - rtic@6000 { - compatible = "fsl,sec-v4.0-rtic"; - #address-cells = <1>; - #size-cells = <1>; - reg = <0x6000 0x100>; - ranges = <0x0 0x6100 0xe00>; - }; - -===================================================================== -Run Time Integrity Check (RTIC) Memory Node - A child node that defines individual RTIC memory regions that are used to - perform run-time integrity check of memory areas that should not modified. - The node defines a register that contains the memory address & - length (combined) and a second register that contains the hash result - in big endian format. - - - compatible - Usage: required - Value type: <string> - Definition: Must include "fsl,sec-v4.0-rtic-memory". - - - reg - Usage: required - Value type: <prop-encoded-array> - Definition: A standard property. Specifies two parameters: - an offset from the parent physical address and the length: - - 1. The location of the RTIC memory address & length registers. - 2. The location RTIC hash result. - - - fsl,rtic-region - Usage: optional-but-recommended - Value type: <prop-encoded-array> - Definition: - Specifies the HW address (36 bit address) for this region - followed by the length of the HW partition to be checked; - the address is represented as a 64 bit quantity followed - by a 32 bit length. - - - fsl,liodn - Usage: optional-but-recommended - Value type: <prop-encoded-array> - Definition: - Specifies the LIODN to be used in conjunction with - the ppid-to-liodn table that specifies the PPID to LIODN - mapping. Needed if the PAMU is used. Value is a 12 bit value - where value is a LIODN ID for this RTIC memory region. This - property is normally set by boot firmware. - -EXAMPLE - rtic-a@0 { - compatible = "fsl,sec-v4.0-rtic-memory"; - reg = <0x00 0x20 0x100 0x80>; - fsl,liodn = <0x03c>; - fsl,rtic-region = <0x12345678 0x12345678 0x12345678>; - }; - -===================================================================== -Secure Non-Volatile Storage (SNVS) Node - - 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. - - - compatible - Usage: required - Value type: <string> - Definition: Must include "fsl,sec-v4.0-mon" and "syscon". - - - reg - Usage: required - Value type: <prop-encoded-array> - Definition: A standard property. Specifies the physical - address and length of the SEC4 configuration - registers. - - - #address-cells - Usage: required - Value type: <u32> - Definition: A standard property. Defines the number of cells - for representing physical addresses in child nodes. Must - have a value of 1. - - - #size-cells - Usage: required - Value type: <u32> - Definition: A standard property. Defines the number of cells - for representing the size of physical addresses in - child nodes. Must have a value of 1. - - - ranges - Usage: required - Value type: <prop-encoded-array> - Definition: A standard property. Specifies the physical address - range of the SNVS register space. A triplet that includes - the child address, parent address, & length. - - - interrupts - Usage: optional - Value type: <prop_encoded-array> - Definition: Specifies the interrupts generated by this - device. The value of the interrupts property - consists of one interrupt specifier. The format - of the specifier is defined by the binding document - describing the node's interrupt parent. - -EXAMPLE - sec_mon@314000 { - compatible = "fsl,sec-v4.0-mon", "syscon"; - reg = <0x314000 0x1000>; - ranges = <0 0x314000 0x1000>; - interrupt-parent = <&mpic>; - interrupts = <93 2>; - }; - -===================================================================== -Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node - - A SNVS child node that defines SNVS LP RTC. - - - compatible - Usage: required - Value type: <string> - Definition: Must include "fsl,sec-v4.0-mon-rtc-lp". - - - interrupts - Usage: required - Value type: <prop_encoded-array> - Definition: Specifies the interrupts generated by this - device. The value of the interrupts property - consists of one interrupt specifier. The format - of the specifier is defined by the binding document - describing the node's interrupt parent. - - - regmap - Usage: required - Value type: <phandle> - Definition: this is phandle to the register map node. - - - offset - Usage: option - value type: <u32> - Definition: LP register offset. default it is 0x34. - - - clocks - Usage: optional, required if SNVS LP RTC requires explicit - enablement of clocks - Value type: <prop_encoded-array> - Definition: a clock specifier describing the clock required for - enabling and disabling SNVS LP RTC. - - - clock-names - Usage: optional, required if SNVS LP RTC requires explicit - enablement of clocks - Value type: <string> - Definition: clock name string should be "snvs-rtc". - -EXAMPLE - sec_mon_rtc_lp@1 { - compatible = "fsl,sec-v4.0-mon-rtc-lp"; - interrupts = <93 2>; - regmap = <&snvs>; - offset = <0x34>; - clocks = <&clks IMX7D_SNVS_CLK>; - clock-names = "snvs-rtc"; - }; - -===================================================================== -System ON/OFF key driver - - 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. - - - compatible: - Usage: required - Value type: <string> - Definition: Mush include "fsl,sec-v4.0-pwrkey". - - - interrupts: - Usage: required - Value type: <prop_encoded-array> - Definition: The SNVS ON/OFF interrupt number to the CPU(s). - - - linux,keycode: - Usage: option - Value type: <int> - Definition: Keycode to emit, KEY_POWER by default. - - - wakeup-source: - Usage: option - Value type: <boo> - Definition: Button can wake-up the system. - - - regmap: - Usage: required: - Value type: <phandle> - Definition: this is phandle to the register map node. - -EXAMPLE: - snvs-pwrkey@020cc000 { - compatible = "fsl,sec-v4.0-pwrkey"; - regmap = <&snvs>; - interrupts = <0 4 0x4> - linux,keycode = <116>; /* KEY_POWER */ - wakeup-source; - }; - -===================================================================== -FULL EXAMPLE - - crypto: crypto@300000 { - compatible = "fsl,sec-v4.0"; - #address-cells = <1>; - #size-cells = <1>; - reg = <0x300000 0x10000>; - ranges = <0 0x300000 0x10000>; - interrupt-parent = <&mpic>; - interrupts = <92 2>; - - sec_jr0: jr@1000 { - compatible = "fsl,sec-v4.0-job-ring"; - reg = <0x1000 0x1000>; - interrupt-parent = <&mpic>; - interrupts = <88 2>; - }; - - sec_jr1: jr@2000 { - compatible = "fsl,sec-v4.0-job-ring"; - reg = <0x2000 0x1000>; - interrupt-parent = <&mpic>; - interrupts = <89 2>; - }; - - sec_jr2: jr@3000 { - compatible = "fsl,sec-v4.0-job-ring"; - reg = <0x3000 0x1000>; - interrupt-parent = <&mpic>; - interrupts = <90 2>; - }; - - sec_jr3: jr@4000 { - compatible = "fsl,sec-v4.0-job-ring"; - reg = <0x4000 0x1000>; - interrupt-parent = <&mpic>; - interrupts = <91 2>; - }; - - rtic@6000 { - compatible = "fsl,sec-v4.0-rtic"; - #address-cells = <1>; - #size-cells = <1>; - reg = <0x6000 0x100>; - ranges = <0x0 0x6100 0xe00>; - - rtic_a: rtic-a@0 { - compatible = "fsl,sec-v4.0-rtic-memory"; - reg = <0x00 0x20 0x100 0x80>; - }; - - rtic_b: rtic-b@20 { - compatible = "fsl,sec-v4.0-rtic-memory"; - reg = <0x20 0x20 0x200 0x80>; - }; - - rtic_c: rtic-c@40 { - compatible = "fsl,sec-v4.0-rtic-memory"; - reg = <0x40 0x20 0x300 0x80>; - }; - - rtic_d: rtic-d@60 { - compatible = "fsl,sec-v4.0-rtic-memory"; - reg = <0x60 0x20 0x500 0x80>; - }; - }; - }; - - sec_mon: sec_mon@314000 { - compatible = "fsl,sec-v4.0-mon"; - reg = <0x314000 0x1000>; - ranges = <0 0x314000 0x1000>; - - sec_mon_rtc_lp@34 { - compatible = "fsl,sec-v4.0-mon-rtc-lp"; - regmap = <&sec_mon>; - offset = <0x34>; - interrupts = <93 2>; - clocks = <&clks IMX7D_SNVS_CLK>; - clock-names = "snvs-rtc"; - }; - - snvs-pwrkey@020cc000 { - compatible = "fsl,sec-v4.0-pwrkey"; - regmap = <&sec_mon>; - interrupts = <0 4 0x4>; - linux,keycode = <116>; /* KEY_POWER */ - wakeup-source; - }; - }; - -===================================================================== -- 2.39.1
