dt-bindings: Add devicetree bindings

Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").

Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>

bindings/nvmem/allwinner,sun4i-a10-sid.yaml

@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/allwinner,sun4i-a10-sid.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Security ID
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+  - Maxime Ripard <mripard@kernel.org>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - const: allwinner,sun4i-a10-sid
+      - const: allwinner,sun7i-a20-sid
+      - const: allwinner,sun8i-a83t-sid
+      - const: allwinner,sun8i-h3-sid
+      - const: allwinner,sun20i-d1-sid
+      - const: allwinner,sun50i-a64-sid
+      - items:
+          - const: allwinner,sun50i-a100-sid
+          - const: allwinner,sun50i-a64-sid
+      - const: allwinner,sun50i-h5-sid
+      - const: allwinner,sun50i-h6-sid
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    efuse@1c23800 {
+        compatible = "allwinner,sun4i-a10-sid";
+        reg = <0x01c23800 0x10>;
+    };
+
+  - |
+    efuse@1c23800 {
+        compatible = "allwinner,sun7i-a20-sid";
+        reg = <0x01c23800 0x200>;
+    };
+
+...

bindings/nvmem/amlogic-efuse.txt

@@ -0,0 +1,48 @@
+= Amlogic Meson GX eFuse device tree bindings =
+
+Required properties:
+- compatible: should be "amlogic,meson-gxbb-efuse"
+- clocks: phandle to the efuse peripheral clock provided by the
+	  clock controller.
+- secure-monitor: phandle to the secure-monitor node
+
+= Data cells =
+Are child nodes of eFuse, bindings of which as described in
+bindings/nvmem/nvmem.txt
+
+Example:
+
+	efuse: efuse {
+		compatible = "amlogic,meson-gxbb-efuse";
+		clocks = <&clkc CLKID_EFUSE>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		secure-monitor = <&sm>;
+
+		sn: sn@14 {
+			reg = <0x14 0x10>;
+		};
+
+		eth_mac: eth_mac@34 {
+			reg = <0x34 0x10>;
+		};
+
+		bid: bid@46 {
+			reg = <0x46 0x30>;
+		};
+	};
+
+	sm: secure-monitor {
+		compatible = "amlogic,meson-gxbb-sm";
+	};
+
+= Data consumers =
+Are device nodes which consume nvmem data cells.
+
+For example:
+
+	eth_mac {
+		...
+		nvmem-cells = <&eth_mac>;
+		nvmem-cell-names = "eth_mac";
+	};

bindings/nvmem/amlogic-meson-mx-efuse.txt

@@ -0,0 +1,22 @@
+Amlogic Meson6/Meson8/Meson8b efuse
+
+Required Properties:
+- compatible: depending on the SoC this should be one of:
+	- "amlogic,meson6-efuse"
+	- "amlogic,meson8-efuse"
+	- "amlogic,meson8b-efuse"
+- reg: base address and size of the efuse registers
+- clocks: a reference to the efuse core gate clock
+- clock-names: must be "core"
+
+All properties and sub-nodes as well as the consumer bindings
+defined in nvmem.txt in this directory are also supported.
+
+
+Example:
+	efuse: nvmem@0 {
+		compatible = "amlogic,meson8-efuse";
+		reg = <0x0 0x2000>;
+		clocks = <&clkc CLKID_EFUSE>;
+		clock-names = "core";
+	};

bindings/nvmem/apple,efuses.yaml

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/apple,efuses.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple SoC eFuse-based NVMEM
+
+description: |
+  Apple SoCs such as the M1 contain factory-programmed eFuses used to e.g. store
+  calibration data for the PCIe and the Type-C PHY or unique chip identifiers
+  such as the ECID.
+
+maintainers:
+  - Sven Peter <sven@svenpeter.dev>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - apple,t8103-efuses
+          - apple,t6000-efuses
+      - const: apple,efuses
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    efuse@3d2bc000 {
+        compatible = "apple,t8103-efuses", "apple,efuses";
+        reg = <0x3d2bc000 0x1000>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        ecid: efuse@500 {
+            reg = <0x500 0x8>;
+        };
+    };
+
+...

bindings/nvmem/brcm,nvram.yaml

@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/brcm,nvram.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom's NVRAM
+
+description: |
+  Broadcom's NVRAM is a structure containing device specific environment
+  variables. It is used for storing device configuration, booting parameters
+  and calibration data.
+
+  NVRAM can be accessed on Broadcom BCM47xx MIPS and Northstar ARM Cortex-A9
+  devices usiong I/O mapped memory.
+
+  NVRAM variables can be defined as NVMEM device subnodes.
+
+maintainers:
+  - Rafał Miłecki <rafal@milecki.pl>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    const: brcm,nvram
+
+  reg:
+    maxItems: 1
+
+  board_id:
+    type: object
+    description: Board identification name
+
+  et0macaddr:
+    type: object
+    description: First Ethernet interface's MAC address
+
+  et1macaddr:
+    type: object
+    description: Second Ethernet interface's MAC address
+
+  et2macaddr:
+    type: object
+    description: Third Ethernet interface's MAC address
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    nvram@1eff0000 {
+        compatible = "brcm,nvram";
+        reg = <0x1eff0000 0x10000>;
+
+        mac: et0macaddr {
+        };
+    };

bindings/nvmem/brcm,ocotp.txt

@@ -0,0 +1,17 @@
+Broadcom OTP memory controller
+
+Required Properties:
+- compatible: "brcm,ocotp" for the first generation Broadcom OTPC which is used
+  in Cygnus and supports 32 bit read/write. Use "brcm,ocotp-v2" for the second
+  generation Broadcom OTPC which is used in SoC's such as Stingray and supports
+  64-bit read/write.
+- reg: Base address of the OTP controller.
+- brcm,ocotp-size: Amount of memory available, in 32 bit words
+
+Example:
+
+otp: otp@301c800 {
+	compatible = "brcm,ocotp";
+	reg = <0x0301c800 0x2c>;
+	brcm,ocotp-size = <2048>;
+};

bindings/nvmem/fsl,layerscape-sfp.yaml

@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/fsl,layerscape-sfp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Layerscape Security Fuse Processor
+
+maintainers:
+  - Michael Walle <michael@walle.cc>
+
+description: |
+  SFP is the security fuse processor which among other things provides a
+  unique identifier per part.
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - description: Trust architecture 2.1 SFP
+        items:
+          - const: fsl,ls1021a-sfp
+      - description: Trust architecture 3.0 SFP
+        items:
+          - const: fsl,ls1028a-sfp
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+    description:
+      The SFP clock. Typically, this is the platform clock divided by 4.
+
+  clock-names:
+    const: sfp
+
+  ta-prog-sfp-supply:
+    description:
+      The regulator for the TA_PROG_SFP pin. It will be enabled for programming
+      and disabled for reading.
+
+required:
+  - compatible
+  - reg
+  - clock-names
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/fsl,qoriq-clockgen.h>
+    efuse@1e80000 {
+        compatible = "fsl,ls1028a-sfp";
+        reg = <0x1e80000 0x8000>;
+        clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
+                            QORIQ_CLK_PLL_DIV(4)>;
+        clock-names = "sfp";
+    };

bindings/nvmem/fsl,scu-ocotp.yaml

@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/fsl,scu-ocotp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - OCOTP bindings based on SCU Message Protocol
+
+maintainers:
+  - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+  Client nodes are maintained as children of the relevant IMX-SCU device node.
+
+allOf:
+  - $ref: nvmem.yaml#
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8qm-scu-ocotp
+      - fsl,imx8qxp-scu-ocotp
+
+patternProperties:
+  '^mac@[0-9a-f]*$':
+    type: object
+    description:
+      MAC address.
+
+    properties:
+      reg:
+        description:
+          Byte offset within OCOTP where the MAC address is stored
+        maxItems: 1
+
+    required:
+      - reg
+
+    additionalProperties: false
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    ocotp {
+        compatible = "fsl,imx8qxp-scu-ocotp";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        fec_mac0: mac@2c4 {
+            reg = <0x2c4 6>;
+        };
+    };

bindings/nvmem/imx-iim.yaml

@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/imx-iim.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX IC Identification Module (IIM)
+
+maintainers:
+  - Anson Huang <Anson.Huang@nxp.com>
+
+description: |
+  This binding represents the IC Identification Module (IIM) found on
+  i.MX25, i.MX27, i.MX31, i.MX35, i.MX51 and i.MX53 SoCs.
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx25-iim
+      - fsl,imx27-iim
+      - fsl,imx31-iim
+      - fsl,imx35-iim
+      - fsl,imx51-iim
+      - fsl,imx53-iim
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx5-clock.h>
+
+    iim: efuse@63f98000 {
+        compatible = "fsl,imx53-iim";
+        reg = <0x63f98000 0x4000>;
+        interrupts = <69>;
+        clocks = <&clks IMX5_CLK_IIM_GATE>;
+    };
+
+...

bindings/nvmem/imx-ocotp.yaml

@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/imx-ocotp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX6 On-Chip OTP Controller (OCOTP)
+
+maintainers:
+  - Anson Huang <Anson.Huang@nxp.com>
+
+description: |
+  This binding represents the on-chip eFuse OTP controller found on
+  i.MX6Q/D, i.MX6DL/S, i.MX6SL, i.MX6SX, i.MX6UL, i.MX6ULL/ULZ, i.MX6SLL,
+  i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM, i.MX8MN and i.MX8MP SoCs.
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - fsl,imx6q-ocotp
+              - fsl,imx6sl-ocotp
+              - fsl,imx6sx-ocotp
+              - fsl,imx6ul-ocotp
+              - fsl,imx6ull-ocotp
+              - fsl,imx7d-ocotp
+              - fsl,imx6sll-ocotp
+              - fsl,imx7ulp-ocotp
+              - fsl,imx8mq-ocotp
+              - fsl,imx8mm-ocotp
+          - const: syscon
+      - items:
+          - enum:
+              - fsl,imx8mn-ocotp
+              # i.MX8MP not really compatible with fsl,imx8mm-ocotp, however
+              # the code for getting SoC revision depends on fsl,imx8mm-ocotp
+              # compatible.
+              - fsl,imx8mp-ocotp
+          - const: fsl,imx8mm-ocotp
+          - const: syscon
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - "#address-cells"
+  - "#size-cells"
+  - compatible
+  - reg
+
+patternProperties:
+  "^.*@[0-9a-f]+$":
+    type: object
+
+    properties:
+      reg:
+        maxItems: 1
+        description:
+          Offset and size in bytes within the storage device.
+
+    required:
+      - reg
+
+    additionalProperties: false
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx6sx-clock.h>
+
+    ocotp: efuse@21bc000 {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "fsl,imx6sx-ocotp", "syscon";
+        reg = <0x021bc000 0x4000>;
+        clocks = <&clks IMX6SX_CLK_OCOTP>;
+
+        cpu_speed_grade: speed-grade@10 {
+            reg = <0x10 4>;
+        };
+
+        tempmon_calib: calib@38 {
+            reg = <0x38 4>;
+        };
+
+        tempmon_temp_grade: temp-grade@20 {
+            reg = <0x20 4>;
+        };
+    };
+
+...

bindings/nvmem/ingenic,jz4780-efuse.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/ingenic,jz4780-efuse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ingenic JZ EFUSE driver bindings
+
+maintainers:
+  - PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - ingenic,jz4780-efuse
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    # Handle for the ahb for the efuse.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
+
+    efuse@134100d0 {
+        compatible = "ingenic,jz4780-efuse";
+        reg = <0x134100d0 0x2c>;
+
+        clocks = <&cgu JZ4780_CLK_AHB2>;
+    };
+
+...

bindings/nvmem/lpc1850-otp.txt

@@ -0,0 +1,20 @@
+* NXP LPC18xx OTP memory
+
+Internal OTP (One Time Programmable) memory for NXP LPC18xx/43xx devices.
+
+Required properties:
+  - compatible: Should be "nxp,lpc1850-otp"
+  - reg: Must contain an entry with the physical base address and length
+    for each entry in reg-names.
+  - address-cells: must be set to 1.
+  - size-cells: must be set to 1.
+
+See nvmem.txt for more information.
+
+Example:
+  otp: otp@40045000 {
+    compatible = "nxp,lpc1850-otp";
+    reg = <0x40045000 0x1000>;
+    #address-cells = <1>;
+    #size-cells = <1>;
+  };

bindings/nvmem/lpc1857-eeprom.txt

@@ -0,0 +1,28 @@
+* NXP LPC18xx EEPROM memory NVMEM driver
+
+Required properties:
+  - compatible: Should be "nxp,lpc1857-eeprom"
+  - reg: Must contain an entry with the physical base address and length
+    for each entry in reg-names.
+  - reg-names: Must include the following entries.
+    - reg: EEPROM registers.
+    - mem: EEPROM address space.
+  - clocks: Must contain an entry for each entry in clock-names.
+  - clock-names: Must include the following entries.
+    - eeprom: EEPROM operating clock.
+  - resets: Should contain a reference to the reset controller asserting
+    the EEPROM in reset.
+  - interrupts: Should contain EEPROM interrupt.
+
+Example:
+
+  eeprom: eeprom@4000e000 {
+    compatible = "nxp,lpc1857-eeprom";
+    reg = <0x4000e000 0x1000>,
+          <0x20040000 0x4000>;
+    reg-names = "reg", "mem";
+    clocks = <&ccu1 CLK_CPU_EEPROM>;
+    clock-names = "eeprom";
+    resets = <&rgu 27>;
+    interrupts = <4>;
+  };

bindings/nvmem/mediatek,efuse.yaml

@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/mediatek,efuse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek efuse
+
+description: |
+  MediaTek's efuse is used for storing calibration data, it can be accessed
+  on ARM devices usiong I/O mapped memory.
+
+maintainers:
+  - Andrew-CT Chen <andrew-ct.chen@mediatek.com>
+  - Lala Lin <lala.lin@mediatek.com>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  $nodename:
+    pattern: "^efuse@[0-9a-f]+$"
+
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - mediatek,mt7622-efuse
+              - mediatek,mt7623-efuse
+              - mediatek,mt8173-efuse
+              - mediatek,mt8183-efuse
+              - mediatek,mt8186-efuse
+              - mediatek,mt8188-efuse
+              - mediatek,mt8192-efuse
+              - mediatek,mt8195-efuse
+              - mediatek,mt8516-efuse
+          - const: mediatek,efuse
+      - const: mediatek,mt8173-efuse
+        deprecated: true
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    efuse@11c10000 {
+        compatible = "mediatek,mt8195-efuse", "mediatek,efuse";
+        reg = <0x11c10000 0x1000>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        u3_tx_imp_p0: usb3-tx-imp@184,1 {
+            reg = <0x184 0x1>;
+            bits = <0 5>;
+        };
+        u3_rx_imp_p0: usb3-rx-imp@184,2 {
+            reg = <0x184 0x2>;
+            bits = <5 5>;
+        };
+        u3_intr_p0: usb3-intr@185 {
+            reg = <0x185 0x1>;
+            bits = <2 6>;
+        };
+        comb_tx_imp_p1: usb3-tx-imp@186,1 {
+            reg = <0x186 0x1>;
+            bits = <0 5>;
+        };
+        comb_rx_imp_p1: usb3-rx-imp@186,2 {
+            reg = <0x186 0x2>;
+            bits = <5 5>;
+        };
+        comb_intr_p1: usb3-intr@187 {
+            reg = <0x187 0x1>;
+            bits = <2 6>;
+        };
+        u2_intr_p0: usb2-intr-p0@188,1 {
+            reg = <0x188 0x1>;
+            bits = <0 5>;
+        };
+        u2_intr_p1: usb2-intr-p1@188,2 {
+            reg = <0x188 0x2>;
+            bits = <5 5>;
+        };
+    };

bindings/nvmem/microchip,lan9662-otpc.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/microchip,lan9662-otpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN9662 OTP Controller (OTPC)
+
+maintainers:
+  - Horatiu Vultur <horatiu.vultur@microchip.com>
+
+description: |
+  OTP controller drives a NVMEM memory where system specific data
+  (e.g. hardware configuration settings, chip identifiers) or
+  user specific data could be stored.
+
+allOf:
+  - $ref: nvmem.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: microchip,lan9668-otpc
+          - const: microchip,lan9662-otpc
+      - enum:
+          - microchip,lan9662-otpc
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    otpc: otp@e0021000 {
+        compatible = "microchip,lan9662-otpc";
+        reg = <0xe0021000 0x300>;
+    };
+
+...

bindings/nvmem/microchip,sama7g5-otpc.yaml

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/microchip,sama7g5-otpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip SAMA7G5 OTP Controller (OTPC)
+
+maintainers:
+  - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description: |
+  OTP controller drives a NVMEM memory where system specific data
+  (e.g. calibration data for analog cells, hardware configuration
+  settings, chip identifiers) or user specific data could be stored.
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    items:
+      - const: microchip,sama7g5-otpc
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/nvmem/microchip,sama7g5-otpc.h>
+
+    otpc: efuse@e8c00000 {
+        compatible = "microchip,sama7g5-otpc", "syscon";
+        reg = <0xe8c00000 0xec>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        temperature_calib: calib@1 {
+            reg = <OTP_PKT(1) 76>;
+        };
+    };
+
+...

bindings/nvmem/mxs-ocotp.yaml

@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/mxs-ocotp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: On-Chip OTP Memory for Freescale i.MX23/i.MX28
+
+maintainers:
+  - Anson Huang <Anson.Huang@nxp.com>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx23-ocotp
+      - fsl,imx28-ocotp
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    ocotp: efuse@8002c000 {
+        compatible = "fsl,imx28-ocotp";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        reg = <0x8002c000 0x2000>;
+        clocks = <&clks 25>;
+    };
+
+...

bindings/nvmem/nintendo-otp.yaml

@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/nintendo-otp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nintendo Wii and Wii U OTP
+
+description: |
+  This binding represents the OTP memory as found on a Nintendo Wii or Wii U,
+  which contains common and per-console keys, signatures and related data
+  required to access peripherals.
+
+  See https://wiiubrew.org/wiki/Hardware/OTP
+
+maintainers:
+  - Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - nintendo,hollywood-otp
+      - nintendo,latte-otp
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    otp@d8001ec {
+        compatible = "nintendo,latte-otp";
+        reg = <0x0d8001ec 0x8>;
+    };
+
+...

bindings/nvmem/nvmem-consumer.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/nvmem-consumer.yaml#
+$schema: http://devicetree.org/meta-schemas/base.yaml#
+
+title: NVMEM (Non Volatile Memory) Consumer
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+select: true
+
+properties:
+  nvmem:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description:
+      List of phandle to the nvmem providers.
+
+  nvmem-cells:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description:
+      List of phandle to the nvmem data cells.
+
+  nvmem-names:
+    description:
+      Names for the each nvmem provider.
+
+  nvmem-cell-names:
+    description:
+      Names for each nvmem-cells specified.
+
+dependencies:
+  nvmem-names: [ nvmem ]
+  nvmem-cell-names: [ nvmem-cells ]
+
+additionalProperties: true
+
+examples:
+  - |
+    tsens {
+        /* ... */
+        nvmem-cells = <&tsens_calibration>;
+        nvmem-cell-names = "calibration";
+    };

bindings/nvmem/nvmem.txt

@@ -0,0 +1 @@
+This file has been moved to nvmem.yaml and nvmem-consumer.yaml.

bindings/nvmem/nvmem.yaml

@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/nvmem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVMEM (Non Volatile Memory)
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+  This binding is intended to represent the location of hardware
+  configuration data stored in NVMEMs like eeprom, efuses and so on.
+
+  On a significant proportion of boards, the manufacturer has stored
+  some data on NVMEM, for the OS to be able to retrieve these
+  information and act upon it. Obviously, the OS has to know about
+  where to retrieve these data from, and where they are stored on the
+  storage device.
+
+properties:
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  read-only:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      Mark the provider as read only.
+
+  wp-gpios:
+    description:
+      GPIO to which the write-protect pin of the chip is connected.
+      The write-protect GPIO is asserted, when it's driven high
+      (logical '1') to block the write operation. It's deasserted,
+      when it's driven low (logical '0') to allow writing.
+    maxItems: 1
+
+patternProperties:
+  "@[0-9a-f]+(,[0-7])?$":
+    type: object
+
+    properties:
+      reg:
+        maxItems: 1
+        description:
+          Offset and size in bytes within the storage device.
+
+      bits:
+        $ref: /schemas/types.yaml#/definitions/uint32-array
+        items:
+          - minimum: 0
+            maximum: 7
+            description:
+              Offset in bit within the address range specified by reg.
+          - minimum: 1
+            description:
+              Size in bit within the address range specified by reg.
+
+additionalProperties: true
+
+examples:
+  - |
+      #include <dt-bindings/gpio/gpio.h>
+
+      qfprom: eeprom@700000 {
+          #address-cells = <1>;
+          #size-cells = <1>;
+          reg = <0x00700000 0x100000>;
+
+          wp-gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
+
+          /* ... */
+
+          /* Data cells */
+          tsens_calibration: calib@404 {
+              reg = <0x404 0x10>;
+          };
+
+          tsens_calibration_bckp: calib_bckp@504 {
+              reg = <0x504 0x11>;
+              bits = <6 128>;
+          };
+
+          pvs_version: pvs-version@6 {
+              reg = <0x6 0x2>;
+              bits = <7 2>;
+          };
+
+          speed_bin: speed-bin@c{
+              reg = <0xc 0x1>;
+              bits = <2 3>;
+          };
+      };
+
+...

bindings/nvmem/qcom,qfprom.yaml

@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/qcom,qfprom.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies Inc, QFPROM Efuse bindings
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - qcom,apq8064-qfprom
+          - qcom,apq8084-qfprom
+          - qcom,ipq8064-qfprom
+          - qcom,msm8974-qfprom
+          - qcom,msm8916-qfprom
+          - qcom,msm8996-qfprom
+          - qcom,msm8998-qfprom
+          - qcom,qcs404-qfprom
+          - qcom,sc7180-qfprom
+          - qcom,sc7280-qfprom
+          - qcom,sdm630-qfprom
+          - qcom,sdm845-qfprom
+          - qcom,sm6115-qfprom
+      - const: qcom,qfprom
+
+  reg:
+    # If the QFPROM is read-only OS image then only the corrected region
+    # needs to be provided.  If the QFPROM is writable then all 4 regions
+    # must be provided.
+    oneOf:
+      - items:
+          - description: The corrected region.
+      - items:
+          - description: The corrected region.
+          - description: The raw region.
+          - description: The config region.
+          - description: The security control region.
+
+  # Clock must be provided if QFPROM is writable from the OS image.
+  clocks:
+    maxItems: 1
+  clock-names:
+    const: core
+
+  # Supply reference must be provided if QFPROM is writable from the OS image.
+  vcc-supply:
+    description: Our power supply.
+
+  power-domains:
+    maxItems: 1
+
+  # Needed if any child nodes are present.
+  "#address-cells":
+    const: 1
+  "#size-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-sc7180.h>
+
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      efuse@784000 {
+        compatible = "qcom,sc7180-qfprom", "qcom,qfprom";
+        reg = <0 0x00784000 0 0x8ff>,
+              <0 0x00780000 0 0x7a0>,
+              <0 0x00782000 0 0x100>,
+              <0 0x00786000 0 0x1fff>;
+        clocks = <&gcc GCC_SEC_CTRL_CLK_SRC>;
+        clock-names = "core";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        vcc-supply = <&vreg_l11a_1p8>;
+
+        hstx-trim-primary@25b {
+          reg = <0x25b 0x1>;
+          bits = <1 3>;
+        };
+      };
+    };
+
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      efuse@784000 {
+        compatible = "qcom,sdm845-qfprom", "qcom,qfprom";
+        reg = <0 0x00784000 0 0x8ff>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        hstx-trim-primary@1eb {
+          reg = <0x1eb 0x1>;
+          bits = <1 4>;
+        };
+      };
+    };

bindings/nvmem/qcom,spmi-sdam.yaml

@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/qcom,spmi-sdam.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SPMI SDAM DT bindings
+
+maintainers:
+  - Shyam Kumar Thella <sthella@codeaurora.org>
+
+description: |
+  The SDAM provides scratch register space for the PMIC clients. This
+  memory can be used by software to store information or communicate
+  to/from the PBUS.
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - qcom,spmi-sdam
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  ranges: true
+
+required:
+  - compatible
+  - reg
+  - ranges
+
+unevaluatedProperties: false
+
+examples:
+  - |
+      sdam_1: nvram@b000 {
+          #address-cells = <1>;
+          #size-cells = <1>;
+          compatible = "qcom,spmi-sdam";
+          reg = <0xb000 0x100>;
+          ranges = <0 0xb000 0x100>;
+
+          /* Data cells */
+          restart_reason: restart@50 {
+              reg = <0x50 0x1>;
+              bits = <6 2>;
+          };
+      };
+...

bindings/nvmem/rmem.yaml

@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/rmem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Reserved Memory Based nvmem Device
+
+maintainers:
+  - Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - raspberrypi,bootloader-config
+      - const: nvmem-rmem
+
+  reg:
+    maxItems: 1
+
+  no-map:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      Avoid creating a virtual mapping of the region as part of the OS'
+      standard mapping of system memory.
+
+required:
+  - compatible
+  - no-map
+
+unevaluatedProperties: false
+
+examples:
+  - |
+        reserved-memory {
+                #address-cells = <1>;
+                #size-cells = <1>;
+
+                blconfig: nvram@10000000 {
+                        compatible = "raspberrypi,bootloader-config", "nvmem-rmem";
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        reg = <0x10000000 0x1000>;
+                        no-map;
+                };
+        };
+
+...

bindings/nvmem/rockchip-efuse.yaml

@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/rockchip-efuse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip eFuse
+
+maintainers:
+  - Heiko Stuebner <heiko@sntech.de>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk3066a-efuse
+      - rockchip,rk3188-efuse
+      - rockchip,rk3228-efuse
+      - rockchip,rk3288-efuse
+      - rockchip,rk3328-efuse
+      - rockchip,rk3368-efuse
+      - rockchip,rk3399-efuse
+
+      # Deprecated: old compatible value for rk3066a, rk3188 and rk3288
+      - rockchip,rockchip-efuse
+
+  reg:
+    description:
+      Registers location and eFuse size.
+    maxItems: 1
+
+  clocks:
+    description:
+      eFuse clock id.
+    maxItems: 1
+
+  clock-names:
+    const: pclk_efuse
+
+  rockchip,efuse-size:
+    description:
+      eFuse size in bytes. The eFuse size in property <reg> will be invalid if
+      this property is defined.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3288-cru.h>
+    efuse: efuse@ffb40000 {
+            compatible = "rockchip,rk3288-efuse";
+            reg = <0xffb40000 0x20>;
+            #address-cells = <1>;
+            #size-cells = <1>;
+            clocks = <&cru PCLK_EFUSE256>;
+            clock-names = "pclk_efuse";
+
+            /* Data cells */
+            cpu_leakage: cpu_leakage@17 {
+                    reg = <0x17 0x1>;
+            };
+    };
+...

bindings/nvmem/rockchip-otp.txt

@@ -0,0 +1,25 @@
+Rockchip internal OTP (One Time Programmable) memory device tree bindings
+
+Required properties:
+- compatible: Should be one of the following.
+  - "rockchip,px30-otp" - for PX30 SoCs.
+  - "rockchip,rk3308-otp" - for RK3308 SoCs.
+- reg: Should contain the registers location and size
+- clocks: Must contain an entry for each entry in clock-names.
+- clock-names: Should be "otp", "apb_pclk" and "phy".
+- resets: Must contain an entry for each entry in reset-names.
+  See ../../reset/reset.txt for details.
+- reset-names: Should be "phy".
+
+See nvmem.txt for more information.
+
+Example:
+	otp: otp@ff290000 {
+		compatible = "rockchip,px30-otp";
+		reg = <0x0 0xff290000 0x0 0x4000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		clocks = <&cru SCLK_OTP_USR>, <&cru PCLK_OTP_NS>,
+			 <&cru PCLK_OTP_PHY>;
+		clock-names = "otp", "apb_pclk", "phy";
+	};

bindings/nvmem/sc27xx-efuse.txt

@@ -0,0 +1,52 @@
+= Spreadtrum SC27XX PMIC eFuse device tree bindings =
+
+Required properties:
+- compatible: Should be one of the following.
+	"sprd,sc2720-efuse"
+	"sprd,sc2721-efuse"
+	"sprd,sc2723-efuse"
+	"sprd,sc2730-efuse"
+	"sprd,sc2731-efuse"
+- reg: Specify the address offset of efuse controller.
+- hwlocks: Reference to a phandle of a hwlock provider node.
+
+= Data cells =
+Are child nodes of eFuse, bindings of which as described in
+bindings/nvmem/nvmem.txt
+
+Example:
+
+	sc2731_pmic: pmic@0 {
+		compatible = "sprd,sc2731";
+		reg = <0>;
+		spi-max-frequency = <26000000>;
+		interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		efuse@380 {
+			compatible = "sprd,sc2731-efuse";
+			reg = <0x380>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			hwlocks = <&hwlock 12>;
+
+			/* Data cells */
+			thermal_calib: calib@10 {
+				reg = <0x10 0x2>;
+			};
+		};
+	};
+
+= Data consumers =
+Are device nodes which consume nvmem data cells.
+
+Example:
+
+	thermal {
+		...
+		nvmem-cells = <&thermal_calib>;
+		nvmem-cell-names = "calibration";
+	};

bindings/nvmem/snvs-lpgpr.yaml

@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/snvs-lpgpr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Low Power General Purpose Register found in i.MX Secure Non-Volatile Storage
+
+maintainers:
+  - Oleksij Rempel <o.rempel@pengutronix.de>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - fsl,imx8mm-snvs-lpgpr
+              - fsl,imx8mn-snvs-lpgpr
+              - fsl,imx8mp-snvs-lpgpr
+              - fsl,imx8mq-snvs-lpgpr
+          - const: fsl,imx7d-snvs-lpgpr
+      - enum:
+          - fsl,imx6q-snvs-lpgpr
+          - fsl,imx6ul-snvs-lpgpr
+          - fsl,imx7d-snvs-lpgpr
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    snvs@20cc000 {
+        compatible = "fsl,sec-v4.0-mon", "syscon", "simple-mfd";
+        reg = <0x20cc000 0x4000>;
+
+        snvs_lpgpr: snvs-lpgpr {
+            compatible = "fsl,imx6q-snvs-lpgpr";
+        };
+    };

bindings/nvmem/socionext,uniphier-efuse.yaml

@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/socionext,uniphier-efuse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Socionext UniPhier eFuse bindings
+
+maintainers:
+  - Keiji Hayashibara <hayashibara.keiji@socionext.com>
+  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  "#address-cells": true
+  "#size-cells": true
+
+  compatible:
+    const: socionext,uniphier-efuse
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    // The UniPhier eFuse should be a subnode of a "soc-glue" node.
+
+    soc-glue@5f900000 {
+        compatible = "simple-mfd";
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges = <0x0 0x5f900000 0x2000>;
+
+        efuse@100 {
+            compatible = "socionext,uniphier-efuse";
+            reg = <0x100 0x28>;
+        };
+
+        efuse@200 {
+            compatible = "socionext,uniphier-efuse";
+            reg = <0x200 0x68>;
+            #address-cells = <1>;
+            #size-cells = <1>;
+
+            /* Data cells */
+            usb_rterm0: trim@54,4 {
+                reg = <0x54 1>;
+                bits = <4 2>;
+            };
+            usb_rterm1: trim@55,4 {
+                reg = <0x55 1>;
+                bits = <4 2>;
+            };
+            usb_rterm2: trim@58,4 {
+                reg = <0x58 1>;
+                bits = <4 2>;
+            };
+            usb_rterm3: trim@59,4 {
+                reg = <0x59 1>;
+                bits = <4 2>;
+            };
+            usb_sel_t0: trim@54,0 {
+                reg = <0x54 1>;
+                bits = <0 4>;
+            };
+            usb_sel_t1: trim@55,0 {
+                reg = <0x55 1>;
+                bits = <0 4>;
+            };
+            usb_sel_t2: trim@58,0 {
+                reg = <0x58 1>;
+                bits = <0 4>;
+            };
+            usb_sel_t3: trim@59,0 {
+                reg = <0x59 1>;
+                bits = <0 4>;
+            };
+            usb_hs_i0: trim@56,0 {
+                reg = <0x56 1>;
+                bits = <0 4>;
+            };
+            usb_hs_i2: trim@5a,0 {
+                reg = <0x5a 1>;
+                bits = <0 4>;
+            };
+        };
+    };

bindings/nvmem/sprd-efuse.txt

@@ -0,0 +1,39 @@
+= Spreadtrum eFuse device tree bindings =
+
+Required properties:
+- compatible: Should be "sprd,ums312-efuse".
+- reg: Specify the address offset of efuse controller.
+- clock-names: Should be "enable".
+- clocks: The phandle and specifier referencing the controller's clock.
+- hwlocks: Reference to a phandle of a hwlock provider node.
+
+= Data cells =
+Are child nodes of eFuse, bindings of which as described in
+bindings/nvmem/nvmem.txt
+
+Example:
+
+	ap_efuse: efuse@32240000 {
+		compatible = "sprd,ums312-efuse";
+		reg = <0 0x32240000 0 0x10000>;
+		clock-names = "enable";
+		hwlocks = <&hwlock 8>;
+		clocks = <&aonapb_gate CLK_EFUSE_EB>;
+
+		/* Data cells */
+		thermal_calib: calib@10 {
+			reg = <0x10 0x2>;
+		};
+	};
+
+= Data consumers =
+Are device nodes which consume nvmem data cells.
+
+Example:
+
+	thermal {
+		...
+
+		nvmem-cells = <&thermal_calib>;
+		nvmem-cell-names = "calibration";
+	};

bindings/nvmem/st,stm32-romem.yaml

@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/st,stm32-romem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Factory-programmed data bindings
+
+description: |
+  This represents STM32 Factory-programmed read only non-volatile area: locked
+  flash, OTP, read-only HW regs... This contains various information such as:
+  analog calibration data for temperature sensor (e.g. TS_CAL1, TS_CAL2),
+  internal vref (VREFIN_CAL), unique device ID...
+
+maintainers:
+  - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - st,stm32f4-otp
+      - st,stm32mp15-bsec
+
+  reg:
+    maxItems: 1
+
+patternProperties:
+  "^.*@[0-9a-f]+$":
+    type: object
+
+    properties:
+      st,non-secure-otp:
+        description: |
+          This property explicits a factory programmed area that both secure
+          and non-secure worlds can access. It is needed when, by default, the
+          related area can only be reached by the secure world.
+        type: boolean
+
+required:
+  - "#address-cells"
+  - "#size-cells"
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    efuse@1fff7800 {
+      compatible = "st,stm32f4-otp";
+      reg = <0x1fff7800 0x400>;
+      #address-cells = <1>;
+      #size-cells = <1>;
+
+      calib@22c {
+        reg = <0x22c 0x2>;
+      };
+
+      mac_addr@e4 {
+        reg = <0xe4 0x8>;
+        st,non-secure-otp;
+      };
+    };
+
+...

bindings/nvmem/sunplus,sp7021-ocotp.yaml

@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/sunplus,sp7021-ocotp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: On-Chip OTP Memory for Sunplus SP7021
+
+maintainers:
+  - Vincent Shih <vincent.sunplus@gmail.com>
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    const: sunplus,sp7021-ocotp
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: hb_gpio
+      - const: otprx
+
+  clocks:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  thermal-calibration:
+    type: object
+    description: thermal calibration values
+
+  disconnect-voltage:
+    type: object
+    description: disconnect voltages of usb2 port 0 and port 1
+
+  mac-address0:
+    type: object
+    description: MAC address of ethernet port 0
+
+  mac-address1:
+    type: object
+    description: MAC address of ethernet port 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    otp: otp@9c00af00 {
+        compatible = "sunplus,sp7021-ocotp";
+        reg = <0x9c00af00 0x34>, <0x9c00af80 0x58>;
+        reg-names = "hb_gpio", "otprx";
+        clocks = <&clkc 0x15>;
+
+        #address-cells = <1>;
+        #size-cells = <1>;
+        therm_calib: thermal-calibration@14 {
+          reg = <0x14 0x3>;
+        };
+        disc_vol: disconnect-voltage@18 {
+          reg = <0x18 0x2>;
+        };
+        mac_addr0: mac-address0@34 {
+          reg = <0x34 0x6>;
+        };
+        mac_addr1: mac-address1@3a {
+          reg = <0x3a 0x6>;
+        };
+    };
+...

bindings/nvmem/u-boot,env.yaml

@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/u-boot,env.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: U-Boot environment variables
+
+description: |
+  U-Boot uses environment variables to store device parameters and
+  configuration. They may be used for booting process, setup or keeping end user
+  info.
+
+  Data is stored using U-Boot specific formats (variant specific header and NUL
+  separated key-value pairs).
+
+  Environment data can be stored on various storage entities, e.g.:
+  1. Raw flash partition
+  2. UBI volume
+
+  This binding allows marking storage device (as containing env data) and
+  specifying used format.
+
+  Right now only flash partition case is covered but it may be extended to e.g.
+  UBI volumes in the future.
+
+  Variables can be defined as NVMEM device subnodes.
+
+maintainers:
+  - Rafał Miłecki <rafal@milecki.pl>
+
+properties:
+  compatible:
+    oneOf:
+      - description: A standalone env data block
+        const: u-boot,env
+      - description: Two redundant blocks with active one flagged
+        const: u-boot,env-redundant-bool
+      - description: Two redundant blocks with active having higher counter
+        const: u-boot,env-redundant-count
+
+  reg:
+    maxItems: 1
+
+  bootcmd:
+    type: object
+    description: Command to use for automatic booting
+
+  ethaddr:
+    type: object
+    description: Ethernet interface's MAC address
+
+additionalProperties: false
+
+examples:
+  - |
+    partitions {
+        compatible = "fixed-partitions";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        partition@0 {
+            reg = <0x0 0x40000>;
+            label = "u-boot";
+            read-only;
+        };
+
+        env: partition@40000 {
+            compatible = "u-boot,env";
+            reg = <0x40000 0x10000>;
+
+            mac: ethaddr {
+            };
+        };
+    };

bindings/nvmem/vf610-ocotp.txt

@@ -0,0 +1,19 @@
+On-Chip OTP Memory for Freescale Vybrid
+
+Required Properties:
+  compatible:
+  - "fsl,vf610-ocotp", "syscon" for VF5xx/VF6xx
+  #address-cells : Should be 1
+  #size-cells : Should be 1
+  reg : Address and length of OTP controller and fuse map registers
+  clocks : ipg clock we associate with the OCOTP peripheral
+
+Example for Vybrid VF5xx/VF6xx:
+
+	ocotp: ocotp@400a5000 {
+		compatible = "fsl,vf610-ocotp", "syscon";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0x400a5000 0xCF0>;
+		clocks = <&clks VF610_CLK_OCOTP>;
+	};

bindings/nvmem/xlnx,zynqmp-nvmem.txt

@@ -0,0 +1,46 @@
+--------------------------------------------------------------------------
+=  Zynq UltraScale+ MPSoC nvmem firmware driver binding =
+--------------------------------------------------------------------------
+The nvmem_firmware node provides access to the hardware related data
+like soc revision, IDCODE... etc, By using the firmware interface.
+
+Required properties:
+- compatible: should be "xlnx,zynqmp-nvmem-fw"
+
+= Data cells =
+Are child nodes of silicon id, bindings of which as described in
+bindings/nvmem/nvmem.txt
+
+-------
+ Example
+-------
+firmware {
+	zynqmp_firmware: zynqmp-firmware {
+		compatible = "xlnx,zynqmp-firmware";
+		method = "smc";
+
+		nvmem_firmware {
+			compatible = "xlnx,zynqmp-nvmem-fw";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			/* Data cells */
+			soc_revision: soc_revision {
+				reg = <0x0 0x4>;
+			};
+		};
+	};
+};
+
+= Data consumers =
+Are device nodes which consume nvmem data cells.
+
+For example:
+	pcap {
+		...
+
+		nvmem-cells = <&soc_revision>;
+		nvmem-cell-names = "soc_revision";
+
+		...
+	};

bindings/nvmem/zii,rave-sp-eeprom.txt

@@ -0,0 +1,40 @@
+Zodiac Inflight Innovations RAVE EEPROM Bindings
+
+RAVE SP EEPROM device is a "MFD cell" device exposing physical EEPROM
+attached to RAVE Supervisory Processor. It is expected that its Device
+Tree node is specified as a child of the node corresponding to the
+parent RAVE SP device (as documented in
+Documentation/devicetree/bindings/mfd/zii,rave-sp.txt)
+
+Required properties:
+
+- compatible: Should be "zii,rave-sp-eeprom"
+
+Optional properties:
+
+- zii,eeprom-name: Unique EEPROM identifier describing its function in the
+  system. Will be used as created NVMEM deivce's name.
+
+Data cells:
+
+Data cells are child nodes of eerpom node, bindings for which are
+documented in Documentation/devicetree/bindings/nvmem/nvmem.txt
+
+Example:
+
+	rave-sp {
+		compatible = "zii,rave-sp-rdu1";
+		current-speed = <38400>;
+
+		eeprom@a4 {
+			compatible = "zii,rave-sp-eeprom";
+			reg = <0xa4 0x4000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			zii,eeprom-name = "main-eeprom";
+
+			wdt_timeout: wdt-timeout@81 {
+				reg = <0x81 2>;
+			};
+		};
+	}