Merge tag 'imx-bindings-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/dt

i.MX DT bindings update for 5.20:

- Compatibles for new boards: i.MX7 based Toradex Colibri, DH electronics
  i.MX8M Plus DHCOM and PDK2, TQMa8MPxL, Carrier for Toradex i.MX6 Apalis,
  i.MX93 EVK, PHYTEC i.MX8MM based board.
- A series from Abel Vesa (and Viorel Suman) to split fsl,scu.txt bindings
  into multiple subsystem bindings in yaml format.
- Fix 'line too long' warning caused by Toradex Colibri boards.

* tag 'imx-bindings-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  dt-bindings: arm: add TQMa8MPxL board
  dt-bindings: firmware: Add fsl,scu yaml file
  dt-bindings: watchdog: Add fsl,scu-wdt yaml file
  dt-bindings: thermal: Add fsl,scu-thermal yaml file
  dt-bindings: rtc: Add fsl,scu-rtc yaml file
  dt-bindings: power: Add fsl,scu-pd yaml file
  dt-bindings: nvmem: Add fsl,scu-ocotp yaml file
  dt-bindings: input: Add fsl,scu-key yaml file
  dt-bindings: pinctrl: imx: Add fsl,scu-iomux yaml file
  dt-bindings: clk: imx: Add fsl,scu-clk yaml file
  bindings: arm: fsl: Add PHYTEC i.MX8MM devicetree bindings
  dt-bindings: arm: fsl: Add carrier for toradex,apalis-imx6q
  dt-bindings: arm: fsl: Decrease the line length
  dt-bindings: arm: Add DH electronics i.MX8M Plus DHCOM and PDK2
  dt-bindings: arm: fsl: add toradex,colibri-imx7s/d/d-emmc-iris/-v2
  dt-bindings: arm: fsl: add imx93 11x11 evk board
  dt-bindings: arm: fsl: correct 1g vs. 1gb in toradex,colibri-imx6ull-*

Link: https://lore.kernel.org/r/20220709082951.15123-3-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

11 files changed, 614 insertions, 285 deletions

diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
deleted file mode 100644
index a87ec15e28d2..000000000000
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ /dev/null
@@ -1,271 +0,0 @@
-NXP i.MX System Controller Firmware (SCFW)
---------------------------------------------------------------------
-
-The System Controller Firmware (SCFW) is a low-level system function
-which runs on a dedicated Cortex-M core to provide power, clock, and
-resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
-(QM, QP), and i.MX8QX (QXP, DX).
-
-The AP communicates with the SC using a multi-ported MU module found
-in the LSIO subsystem. The current definition of this MU module provides
-5 remote AP connections to the SC to support up to 5 execution environments
-(TZ, HV, standard Linux, etc.). The SC side of this MU module interfaces
-with the LSIO DSC IP bus. The SC firmware will communicate with this MU
-using the MSI bus.
-
-System Controller Device Node:
-============================================================
-
-The scu node with the following properties shall be under the /firmware/ node.
-
-Required properties:
--------------------
-- compatible:	should be "fsl,imx-scu".
-- mbox-names:	should include "tx0", "tx1", "tx2", "tx3",
-			       "rx0", "rx1", "rx2", "rx3";
-		include "gip3" if want to support general MU interrupt.
-- mboxes:	List of phandle of 4 MU channels for tx, 4 MU channels for
-		rx, and 1 optional MU channel for general interrupt.
-		All MU channels must be in the same MU instance.
-		Cross instances are not allowed. The MU instance can only
-		be one of LSIO MU0~M4 for imx8qxp and imx8qm. Users need
-		to make sure use the one which is not conflict with other
-		execution environments. e.g. ATF.
-		Note:
-		Channel 0 must be "tx0" or "rx0".
-		Channel 1 must be "tx1" or "rx1".
-		Channel 2 must be "tx2" or "rx2".
-		Channel 3 must be "tx3" or "rx3".
-		General interrupt rx channel must be "gip3".
-		e.g.
-		mboxes = <&lsio_mu1 0 0
-			  &lsio_mu1 0 1
-			  &lsio_mu1 0 2
-			  &lsio_mu1 0 3
-			  &lsio_mu1 1 0
-			  &lsio_mu1 1 1
-			  &lsio_mu1 1 2
-			  &lsio_mu1 1 3
-			  &lsio_mu1 3 3>;
-		See Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
-		for detailed mailbox binding.
-
-Note: Each mu which supports general interrupt should have an alias correctly
-numbered in "aliases" node.
-e.g.
-aliases {
-	mu1 = &lsio_mu1;
-};
-
-i.MX SCU Client Device Node:
-============================================================
-
-Client nodes are maintained as children of the relevant IMX-SCU device node.
-
-Power domain bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding for the SCU power domain providers uses the generic power
-domain binding[2].
-
-Required properties:
-- compatible:		Should be one of:
-			  "fsl,imx8qm-scu-pd",
-			  "fsl,imx8qxp-scu-pd"
-			followed by "fsl,scu-pd"
-
-- #power-domain-cells:	Must be 1. Contains the Resource ID used by
-			SCU commands.
-			See detailed Resource ID list from:
-			include/dt-bindings/firmware/imx/rsrc.h
-
-Clock bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding uses the common clock binding[1].
-
-Required properties:
-- compatible:		Should be one of:
-			  "fsl,imx8dxl-clk"
-			  "fsl,imx8qm-clk"
-			  "fsl,imx8qxp-clk"
-			followed by "fsl,scu-clk"
-- #clock-cells:		Should be 2.
-			Contains the Resource and Clock ID value.
-- clocks:		List of clock specifiers, must contain an entry for
-			each required entry in clock-names
-- clock-names:		Should include entries "xtal_32KHz", "xtal_24MHz"
-
-The clock consumer should specify the desired clock by having the clock
-ID in its "clocks" phandle cell.
-
-See the full list of clock IDs from:
-include/dt-bindings/clock/imx8qxp-clock.h
-
-Pinctrl bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding uses the i.MX common pinctrl binding[3].
-
-Required properties:
-- compatible:		Should be one of:
-			"fsl,imx8qm-iomuxc",
-			"fsl,imx8qxp-iomuxc",
-			"fsl,imx8dxl-iomuxc".
-
-Required properties for Pinctrl sub nodes:
-- fsl,pins:		Each entry consists of 3 integers which represents
-			the mux and config setting for one pin. The first 2
-			integers <pin_id mux_mode> are specified using a
-			PIN_FUNC_ID macro, which can be found in
-			<dt-bindings/pinctrl/pads-imx8qm.h>,
-			<dt-bindings/pinctrl/pads-imx8qxp.h>,
-			<dt-bindings/pinctrl/pads-imx8dxl.h>.
-			The last integer CONFIG is the pad setting value like
-			pull-up on this pin.
-
-			Please refer to i.MX8QXP Reference Manual for detailed
-			CONFIG settings.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/power/power-domain.yaml
-[3] Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
-
-RTC bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be "fsl,imx8qxp-sc-rtc";
-
-OCOTP bindings based on SCU Message Protocol
-------------------------------------------------------------
-Required properties:
-- compatible:		Should be one of:
-			"fsl,imx8qm-scu-ocotp",
-			"fsl,imx8qxp-scu-ocotp".
-- #address-cells:	Must be 1. Contains byte index
-- #size-cells:		Must be 1. Contains byte length
-
-Optional Child nodes:
-
-- Data cells of ocotp:
-  Detailed bindings are described in bindings/nvmem/nvmem.txt
-
-Watchdog bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be:
-              "fsl,imx8qxp-sc-wdt"
-              followed by "fsl,imx-sc-wdt";
-Optional properties:
-- timeout-sec: contains the watchdog timeout in seconds.
-
-SCU key bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be:
-              "fsl,imx8qxp-sc-key"
-              followed by "fsl,imx-sc-key";
-- linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml
-
-Thermal bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible:			Should be :
-				  "fsl,imx8qxp-sc-thermal"
-				followed by "fsl,imx-sc-thermal";
-
-- #thermal-sensor-cells:	See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml
-				for a description.
-
-Example (imx8qxp):
--------------
-aliases {
-	mu1 = &lsio_mu1;
-};
-
-lsio_mu1: mailbox@5d1c0000 {
-	...
-	#mbox-cells = <2>;
-};
-
-firmware {
-	scu {
-		compatible = "fsl,imx-scu";
-		mbox-names = "tx0", "tx1", "tx2", "tx3",
-			     "rx0", "rx1", "rx2", "rx3",
-			     "gip3";
-		mboxes = <&lsio_mu1 0 0
-			  &lsio_mu1 0 1
-			  &lsio_mu1 0 2
-			  &lsio_mu1 0 3
-			  &lsio_mu1 1 0
-			  &lsio_mu1 1 1
-			  &lsio_mu1 1 2
-			  &lsio_mu1 1 3
-			  &lsio_mu1 3 3>;
-
-		clk: clk {
-			compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
-			#clock-cells = <2>;
-		};
-
-		iomuxc {
-			compatible = "fsl,imx8qxp-iomuxc";
-
-			pinctrl_lpuart0: lpuart0grp {
-				fsl,pins = <
-					SC_P_UART0_RX_ADMA_UART0_RX	0x06000020
-					SC_P_UART0_TX_ADMA_UART0_TX	0x06000020
-				>;
-			};
-			...
-		};
-
-		ocotp: imx8qx-ocotp {
-			compatible = "fsl,imx8qxp-scu-ocotp";
-			#address-cells = <1>;
-			#size-cells = <1>;
-
-			fec_mac0: mac@2c4 {
-				reg = <0x2c4 8>;
-			};
-		};
-
-		pd: imx8qx-pd {
-			compatible = "fsl,imx8qxp-scu-pd", "fsl,scu-pd";
-			#power-domain-cells = <1>;
-		};
-
-		rtc: rtc {
-			compatible = "fsl,imx8qxp-sc-rtc";
-		};
-
-		scu_key: scu-key {
-			compatible = "fsl,imx8qxp-sc-key", "fsl,imx-sc-key";
-			linux,keycodes = <KEY_POWER>;
-		};
-
-		watchdog {
-			compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
-			timeout-sec = <60>;
-		};
-
-		tsens: thermal-sensor {
-			compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
-			#thermal-sensor-cells = <1>;
-		};
-	};
-};
-
-serial@5a060000 {
-	...
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_lpuart0>;
-	clocks = <&uart0_clk IMX_SC_R_UART_0 IMX_SC_PM_CLK_PER>;
-	clock-names = "ipg";
-	power-domains = <&pd IMX_SC_R_UART_0>;
-};
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index ef524378d449..7431579ab0e8 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -321,6 +321,7 @@ properties:
           - enum:
               - toradex,apalis_imx6q-ixora      # Apalis iMX6Q/D Module on Ixora Carrier Board
               - toradex,apalis_imx6q-ixora-v1.1 # Apalis iMX6Q/D Module on Ixora V1.1 Carrier Board
+              - toradex,apalis_imx6q-ixora-v1.2 # Apalis iMX6Q/D Module on Ixora V1.2 Carrier Board
               - toradex,apalis_imx6q-eval       # Apalis iMX6Q/D Module on Apalis Evaluation Board
           - const: toradex,apalis_imx6q
           - const: fsl,imx6q
@@ -670,30 +671,30 @@ properties:
       - description: i.MX6ULL Boards with Toradex Colibri iMX6ULL Modules
         items:
           - enum:
-              - toradex,colibri-imx6ull-aster     # Colibri iMX6ULL Module on Aster Carrier Board
-              - toradex,colibri-imx6ull-eval      # Colibri iMX6ULL Module on Colibri Evaluation Board V3
-              - toradex,colibri-imx6ull-iris      # Colibri iMX6ULL Module on Iris Carrier Board
-              - toradex,colibri-imx6ull-iris-v2   # Colibri iMX6ULL Module on Iris V2 Carrier Board
+              - toradex,colibri-imx6ull-aster     # Aster Carrier Board
+              - toradex,colibri-imx6ull-eval      # Colibri Evaluation Board V3
+              - toradex,colibri-imx6ull-iris      # Iris Carrier Board
+              - toradex,colibri-imx6ull-iris-v2   # Iris V2 Carrier Board
           - const: toradex,colibri-imx6ull        # Colibri iMX6ULL Module
           - const: fsl,imx6ull
 
       - description: i.MX6ULL Boards with Toradex Colibri iMX6ULL 1GB (eMMC) Module
         items:
           - enum:
-              - toradex,colibri-imx6ull-emmc-aster     # Colibri iMX6ULL 1G (eMMC) on Aster Carrier Board
-              - toradex,colibri-imx6ull-emmc-eval      # Colibri iMX6ULL 1G (eMMC) on Colibri Evaluation B. V3
-              - toradex,colibri-imx6ull-emmc-iris      # Colibri iMX6ULL 1G (eMMC) on Iris Carrier Board
-              - toradex,colibri-imx6ull-emmc-iris-v2   # Colibri iMX6ULL 1G (eMMC) on Iris V2 Carrier Board
+              - toradex,colibri-imx6ull-emmc-aster     # Aster Carrier Board
+              - toradex,colibri-imx6ull-emmc-eval      # Colibri Evaluation B. V3
+              - toradex,colibri-imx6ull-emmc-iris      # Iris Carrier Board
+              - toradex,colibri-imx6ull-emmc-iris-v2   # Iris V2 Carrier Board
           - const: toradex,colibri-imx6ull-emmc        # Colibri iMX6ULL 1GB (eMMC) Module
           - const: fsl,imx6ull
 
       - description: i.MX6ULL Boards with Toradex Colibri iMX6ULL Wi-Fi / BT Modules
         items:
           - enum:
-              - toradex,colibri-imx6ull-wifi-eval     # Colibri iMX6ULL Wi-Fi / BT M. on Colibri Eval. B. V3
-              - toradex,colibri-imx6ull-wifi-aster    # Colibri iMX6ULL Wi-Fi / BT M. on Aster Carrier Board
-              - toradex,colibri-imx6ull-wifi-iris     # Colibri iMX6ULL Wi-Fi / BT M. on Iris Carrier Board
-              - toradex,colibri-imx6ull-wifi-iris-v2  # Colibri iMX6ULL Wi-Fi / BT M. on Iris V2 Carrier Board
+              - toradex,colibri-imx6ull-wifi-eval     # Colibri Eval. B. V3
+              - toradex,colibri-imx6ull-wifi-aster    # Aster Carrier Board
+              - toradex,colibri-imx6ull-wifi-iris     # Iris Carrier Board
+              - toradex,colibri-imx6ull-wifi-iris-v2  # Iris V2 Carrier Board
           - const: toradex,colibri-imx6ull-wifi       # Colibri iMX6ULL Wi-Fi / BT Module
           - const: fsl,imx6ull
 
@@ -738,6 +739,8 @@ properties:
           - enum:
               - toradex,colibri-imx7s-aster     # Module on Aster Carrier Board
               - toradex,colibri-imx7s-eval-v3   # Module on Colibri Evaluation Board V3
+              - toradex,colibri-imx7s-iris      # Module on Iris Carrier Board
+              - toradex,colibri-imx7s-iris-v2   # Module on Iris Carrier Board V2
           - const: toradex,colibri-imx7s
           - const: fsl,imx7s
 
@@ -789,8 +792,10 @@ properties:
       - description: i.MX7D Boards with Toradex Colibri i.MX7D Module
         items:
           - enum:
-              - toradex,colibri-imx7d-aster   # Colibri iMX7D Module on Aster Carrier Board
-              - toradex,colibri-imx7d-eval-v3 # Colibri iMX7D Module on Colibri Evaluation Board V3
+              - toradex,colibri-imx7d-aster   # Aster Carrier Board
+              - toradex,colibri-imx7d-eval-v3 # Colibri Evaluation Board V3
+              - toradex,colibri-imx7d-iris    # Iris Carrier Board
+              - toradex,colibri-imx7d-iris-v2 # Iris Carrier Board V2
           - const: toradex,colibri-imx7d
           - const: fsl,imx7d
 
@@ -799,6 +804,8 @@ properties:
           - enum:
               - toradex,colibri-imx7d-emmc-aster    # Module on Aster Carrier Board
               - toradex,colibri-imx7d-emmc-eval-v3  # Module on Colibri Evaluation Board V3
+              - toradex,colibri-imx7d-emmc-iris     # Module on Iris Carrier Board
+              - toradex,colibri-imx7d-emmc-iris-v2  # Module on Iris Carrier Board V2
           - const: toradex,colibri-imx7d-emmc
           - const: fsl,imx7d
 
@@ -865,6 +872,12 @@ properties:
           - const: toradex,verdin-imx8mm          # Verdin iMX8M Mini Module
           - const: fsl,imx8mm
 
+      - description: PHYTEC phyCORE-i.MX8MM SoM based boards
+        items:
+          - const: phytec,imx8mm-phyboard-polis-rdk # phyBOARD-Polis RDK
+          - const: phytec,imx8mm-phycore-som        # phyCORE-i.MX8MM SoM
+          - const: fsl,imx8mm
+
       - description: Variscite VAR-SOM-MX8MM based boards
         items:
           - const: variscite,var-som-mx8mm-symphony
@@ -914,6 +927,8 @@ properties:
       - description: i.MX8MP based Boards
         items:
           - enum:
+              - dh,imx8mp-dhcom-som       # i.MX8MP DHCOM SoM
+              - dh,imx8mp-dhcom-pdk2      # i.MX8MP DHCOM SoM on PDK2 board
               - fsl,imx8mp-evk            # i.MX8MP EVK Board
               - gateworks,imx8mp-gw74xx   # i.MX8MP Gateworks Board
               - toradex,verdin-imx8mp     # Verdin iMX8M Plus Modules
@@ -952,6 +967,18 @@ properties:
           - const: toradex,verdin-imx8mp          # Verdin iMX8M Plus Module
           - const: fsl,imx8mp
 
+      - description:
+          TQMa8MPxL is a series of LGA SOM featuring NXP i.MX8MP system-on-chip
+          variants. It is designed to be soldered on different carrier boards.
+          All CPU variants use the same device tree hence only one compatible
+          is needed. MBa8MPxL mainboard can be used as starterkit or in a boxed
+          version as an industrial computing device.
+        items:
+          - enum:
+              - tq,imx8mp-tqma8mpql-mba8mpxl # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM on MBa8MPxL
+          - const: tq,imx8mp-tqma8mpql       # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM
+          - const: fsl,imx8mp
+
       - description: i.MX8MQ based Boards
         items:
           - enum:
@@ -1020,6 +1047,12 @@ properties:
               - fsl,imx8ulp-evk           # i.MX8ULP EVK Board
           - const: fsl,imx8ulp
 
+      - description: i.MX93 based Boards
+        items:
+          - enum:
+              - fsl,imx93-11x11-evk       # i.MX93 11x11 EVK Board
+          - const: fsl,imx93
+
       - description:
           Freescale Vybrid Platform Device Tree Bindings
 
diff --git a/Documentation/devicetree/bindings/clock/fsl,scu-clk.yaml b/Documentation/devicetree/bindings/clock/fsl,scu-clk.yaml
new file mode 100644
index 000000000000..f2c48460a399
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,scu-clk.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,scu-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Clock bindings based on SCU Message Protocol
+
+maintainers:
+  - Abel Vesa <abel.vesa@nxp.com>
+
+description: i.MX SCU Client Device Node
+  Client nodes are maintained as children of the relevant IMX-SCU device node.
+  This binding uses the common clock binding.
+  (Documentation/devicetree/bindings/clock/clock-bindings.txt)
+  The clock consumer should specify the desired clock by having the clock
+  ID in its "clocks" phandle cell. See the full list of clock IDs from
+  include/dt-bindings/clock/imx8qxp-clock.h
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - fsl,imx8dxl-clk
+          - fsl,imx8qm-clk
+          - fsl,imx8qxp-clk
+      - const: fsl,scu-clk
+
+  '#clock-cells':
+    const: 2
+
+required:
+  - compatible
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller {
+        compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
+        #clock-cells = <2>;
+    };
diff --git a/Documentation/devicetree/bindings/firmware/fsl,scu.yaml b/Documentation/devicetree/bindings/firmware/fsl,scu.yaml
new file mode 100644
index 000000000000..b40b0ef56978
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/fsl,scu.yaml
@@ -0,0 +1,210 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/fsl,scu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX System Controller Firmware (SCFW)
+
+maintainers:
+  - Dong Aisheng <aisheng.dong@nxp.com>
+
+description:
+  The System Controller Firmware (SCFW) is a low-level system function
+  which runs on a dedicated Cortex-M core to provide power, clock, and
+  resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
+  (QM, QP), and i.MX8QX (QXP, DX).
+  The AP communicates with the SC using a multi-ported MU module found
+  in the LSIO subsystem. The current definition of this MU module provides
+  5 remote AP connections to the SC to support up to 5 execution environments
+  (TZ, HV, standard Linux, etc.). The SC side of this MU module interfaces
+  with the LSIO DSC IP bus. The SC firmware will communicate with this MU
+  using the MSI bus.
+
+properties:
+  compatible:
+    const: fsl,imx-scu
+
+  clock-controller:
+    description:
+      Clock controller node that provides the clocks controlled by the SCU
+    $ref: /schemas/clock/fsl,scu-clk.yaml
+
+  ocotp:
+    description:
+      OCOTP controller node provided by the SCU
+    $ref: /schemas/nvmem/fsl,scu-ocotp.yaml
+
+  keys:
+    description:
+      Keys provided by the SCU
+    $ref: /schemas/input/fsl,scu-key.yaml
+
+  mboxes:
+    description:
+      A list of phandles of TX MU channels followed by a list of phandles of
+      RX MU channels. The list may include at the end one more optional MU
+      channel for general interrupt. The number of expected tx and rx
+      channels is 1 TX and 1 RX channels if MU instance is "fsl,imx8-mu-scu"
+      compatible, 4 TX and 4 RX channels otherwise. All MU channels must be
+      within the same MU instance. Cross instances are not allowed. The MU
+      instance can only be one of LSIO MU0~M4 for imx8qxp and imx8qm. Users
+      need to ensure that one is used that does not conflict with other
+      execution environments such as ATF.
+    oneOf:
+      - items:
+          - description: TX0 MU channel
+          - description: RX0 MU channel
+      - items:
+          - description: TX0 MU channel
+          - description: RX0 MU channel
+          - description: optional MU channel for general interrupt
+      - items:
+          - description: TX0 MU channel
+          - description: TX1 MU channel
+          - description: TX2 MU channel
+          - description: TX3 MU channel
+          - description: RX0 MU channel
+          - description: RX1 MU channel
+          - description: RX2 MU channel
+          - description: RX3 MU channel
+      - items:
+          - description: TX0 MU channel
+          - description: TX1 MU channel
+          - description: TX2 MU channel
+          - description: TX3 MU channel
+          - description: RX0 MU channel
+          - description: RX1 MU channel
+          - description: RX2 MU channel
+          - description: RX3 MU channel
+          - description: optional MU channel for general interrupt
+
+  mbox-names:
+    oneOf:
+      - items:
+          - const: tx0
+          - const: rx0
+      - items:
+          - const: tx0
+          - const: rx0
+          - const: gip3
+      - items:
+          - const: tx0
+          - const: tx1
+          - const: tx2
+          - const: tx3
+          - const: rx0
+          - const: rx1
+          - const: rx2
+          - const: rx3
+      - items:
+          - const: tx0
+          - const: tx1
+          - const: tx2
+          - const: tx3
+          - const: rx0
+          - const: rx1
+          - const: rx2
+          - const: rx3
+          - const: gip3
+
+  pinctrl:
+    description:
+      Pin controller provided by the SCU
+    $ref: /schemas/pinctrl/fsl,scu-pinctrl.yaml
+
+  power-controller:
+    description:
+      Power domains controller node that provides the power domains
+      controlled by the SCU
+    $ref: /schemas/power/fsl,scu-pd.yaml
+
+  rtc:
+    description:
+      RTC controller provided by the SCU
+    $ref: /schemas/rtc/fsl,scu-rtc.yaml
+
+  thermal-sensor:
+    description:
+      Thermal sensor provided by the SCU
+    $ref: /schemas/thermal/fsl,scu-thermal.yaml
+
+  watchdog:
+    description:
+      Watchdog controller provided by the SCU
+    $ref: /schemas/watchdog/fsl,scu-wdt.yaml
+
+required:
+  - compatible
+  - mbox-names
+  - mboxes
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/firmware/imx/rsrc.h>
+    #include <dt-bindings/input/input.h>
+    #include <dt-bindings/pinctrl/pads-imx8qxp.h>
+
+    firmware {
+        system-controller {
+            compatible = "fsl,imx-scu";
+            mbox-names = "tx0", "tx1", "tx2", "tx3",
+                         "rx0", "rx1", "rx2", "rx3",
+                         "gip3";
+            mboxes = <&lsio_mu1 0 0 &lsio_mu1 0 1 &lsio_mu1 0 2 &lsio_mu1 0 3
+                      &lsio_mu1 1 0 &lsio_mu1 1 1 &lsio_mu1 1 2 &lsio_mu1 1 3
+                      &lsio_mu1 3 3>;
+
+            clock-controller {
+                compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
+                #clock-cells = <2>;
+            };
+
+            pinctrl {
+                compatible = "fsl,imx8qxp-iomuxc";
+
+                pinctrl_lpuart0: lpuart0grp {
+                    fsl,pins = <
+                        IMX8QXP_UART0_RX_ADMA_UART0_RX   0x06000020
+                        IMX8QXP_UART0_TX_ADMA_UART0_TX   0x06000020
+                    >;
+                };
+            };
+
+            ocotp {
+                compatible = "fsl,imx8qxp-scu-ocotp";
+                #address-cells = <1>;
+                #size-cells = <1>;
+
+                fec_mac0: mac@2c4 {
+                    reg = <0x2c4 6>;
+                };
+            };
+
+            power-controller {
+                compatible = "fsl,imx8qxp-scu-pd", "fsl,scu-pd";
+                #power-domain-cells = <1>;
+            };
+
+            rtc {
+                compatible = "fsl,imx8qxp-sc-rtc";
+            };
+
+            keys {
+                compatible = "fsl,imx8qxp-sc-key", "fsl,imx-sc-key";
+                linux,keycodes = <KEY_POWER>;
+            };
+
+            watchdog {
+                compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
+                timeout-sec = <60>;
+            };
+
+            thermal-sensor {
+                compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
+                #thermal-sensor-cells = <1>;
+            };
+        };
+    };
diff --git a/Documentation/devicetree/bindings/input/fsl,scu-key.yaml b/Documentation/devicetree/bindings/input/fsl,scu-key.yaml
new file mode 100644
index 000000000000..e6266d188266
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/fsl,scu-key.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/fsl,scu-key.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - SCU key 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:
+  - $ref: input.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: fsl,imx8qxp-sc-key
+      - const: fsl,imx-sc-key
+
+  linux,keycodes:
+    maxItems: 1
+
+required:
+  - compatible
+  - linux,keycodes
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/input/input.h>
+
+    keys {
+        compatible = "fsl,imx8qxp-sc-key", "fsl,imx-sc-key";
+        linux,keycodes = <KEY_POWER>;
+    };
diff --git a/Documentation/devicetree/bindings/nvmem/fsl,scu-ocotp.yaml b/Documentation/devicetree/bindings/nvmem/fsl,scu-ocotp.yaml
new file mode 100644
index 000000000000..682688299b26
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/fsl,scu-ocotp.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$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>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml
new file mode 100644
index 000000000000..45ea565ce238
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/fsl,scu-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Pinctrl 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.
+  This binding uses the i.MX common pinctrl binding.
+  (Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt)
+
+allOf:
+  - $ref: pinctrl.yaml#
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8qm-iomuxc
+      - fsl,imx8qxp-iomuxc
+      - fsl,imx8dxl-iomuxc
+
+patternProperties:
+  'grp$':
+    type: object
+    description:
+      Pinctrl node's client devices use subnodes for desired pin configuration.
+      Client device subnodes use below standard properties.
+
+    properties:
+      fsl,pins:
+        description:
+          each entry consists of 3 integers and represents the pin ID, the mux value
+          and pad setting for the pin. The first 2 integers - pin_id and mux_val - are
+          specified using a PIN_FUNC_ID macro, which can be found in
+          <include/dt-bindings/pinctrl/pads-imx8qxp.h>. The last integer is
+          the pad setting value like pull-up on this pin. Please refer to the
+          appropriate i.MX8 Reference Manual for detailed pad CONFIG settings.
+        $ref: /schemas/types.yaml#/definitions/uint32-matrix
+        items:
+          items:
+            - description: |
+                "pin_id" indicates the pin ID
+            - description: |
+                "mux_val" indicates the mux value to be applied.
+            - description: |
+                "pad_setting" indicates the pad configuration value to be applied.
+
+    required:
+      - fsl,pins
+
+    additionalProperties: false
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    pinctrl {
+        compatible = "fsl,imx8qxp-iomuxc";
+
+        pinctrl_lpuart0: lpuart0grp {
+            fsl,pins = <
+                111 0 0x06000020
+                112 0 0x06000020
+            >;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml b/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml
new file mode 100644
index 000000000000..1f72b18ca0fc
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/fsl,scu-pd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Power domain 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.
+  Power domain bindings based on SCU Message Protocol
+
+allOf:
+  - $ref: power-domain.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - fsl,imx8qm-scu-pd
+          - fsl,imx8qxp-scu-pd
+      - const: fsl,scu-pd
+
+  '#power-domain-cells':
+    const: 1
+
+required:
+  - compatible
+  - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    power-controller {
+        compatible = "fsl,imx8qxp-scu-pd", "fsl,scu-pd";
+        #power-domain-cells = <1>;
+    };
diff --git a/Documentation/devicetree/bindings/rtc/fsl,scu-rtc.yaml b/Documentation/devicetree/bindings/rtc/fsl,scu-rtc.yaml
new file mode 100644
index 000000000000..8c102b70d735
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/fsl,scu-rtc.yaml
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/fsl,scu-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - RTC 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:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    const: fsl,imx8qxp-sc-rtc
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    rtc {
+        compatible = "fsl,imx8qxp-sc-rtc";
+    };
diff --git a/Documentation/devicetree/bindings/thermal/fsl,scu-thermal.yaml b/Documentation/devicetree/bindings/thermal/fsl,scu-thermal.yaml
new file mode 100644
index 000000000000..f9e4b3c8d0ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/fsl,scu-thermal.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/fsl,scu-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Thermal 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:
+  - $ref: thermal-sensor.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: fsl,imx8qxp-sc-thermal
+      - const: fsl,imx-sc-thermal
+
+  '#thermal-sensor-cells':
+    const: 1
+
+required:
+  - compatible
+  - '#thermal-sensor-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    thermal-sensor {
+        compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
+        #thermal-sensor-cells = <1>;
+    };
diff --git a/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml
new file mode 100644
index 000000000000..f84c45d687d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/fsl,scu-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Watchdog 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: watchdog.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: fsl,imx8qxp-sc-wdt
+      - const: fsl,imx-sc-wdt
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    watchdog {
+        compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
+        timeout-sec = <60>;
+    };