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Message-ID: <20251014153040.3783896-1-robh@kernel.org>
Date: Tue, 14 Oct 2025 10:30:38 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Andrew Lunn <andrew@...n.ch>,
Gregory Clement <gregory.clement@...tlin.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Miquel Raynal <miquel.raynal@...tlin.com>
Cc: linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-clk@...r.kernel.org,
linux-gpio@...r.kernel.org
Subject: [PATCH] dt-bindings: arm: Convert Marvell AP80x System Controller to DT schema
Convert the Marvell AP80x System Controller binding to DT schema format.
There's not any specific compatible for the whole block which is a
separate problem, so just the child nodes are documented. Only the
pinctrl and clock child nodes need to be converted as the GPIO node
already has a schema.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../arm/marvell/ap80x-system-controller.txt | 146 ------------------
.../bindings/clock/marvell,ap80x-clock.yaml | 54 +++++++
.../pinctrl/marvell,ap806-pinctrl.yaml | 61 ++++++++
3 files changed, 115 insertions(+), 146 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
create mode 100644 Documentation/devicetree/bindings/clock/marvell,ap80x-clock.yaml
create mode 100644 Documentation/devicetree/bindings/pinctrl/marvell,ap806-pinctrl.yaml
diff --git a/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
deleted file mode 100644
index 72de11bd2ef0..000000000000
--- a/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
+++ /dev/null
@@ -1,146 +0,0 @@
-Marvell Armada AP80x System Controller
-======================================
-
-The AP806/AP807 is one of the two core HW blocks of the Marvell Armada
-7K/8K/931x SoCs. It contains system controllers, which provide several
-registers giving access to numerous features: clocks, pin-muxing and
-many other SoC configuration items. This DT binding allows to describe
-these system controllers.
-
-For the top level node:
- - compatible: must be: "syscon", "simple-mfd";
- - reg: register area of the AP80x system controller
-
-SYSTEM CONTROLLER 0
-===================
-
-Clocks:
--------
-
-
-The Device Tree node representing the AP806/AP807 system controller
-provides a number of clocks:
-
- - 0: reference clock of CPU cluster 0
- - 1: reference clock of CPU cluster 1
- - 2: fixed PLL at 1200 Mhz
- - 3: MSS clock, derived from the fixed PLL
-
-Required properties:
-
- - compatible: must be one of:
- * "marvell,ap806-clock"
- * "marvell,ap807-clock"
- - #clock-cells: must be set to 1
-
-Pinctrl:
---------
-
-For common binding part and usage, refer to
-Documentation/devicetree/bindings/pinctrl/marvell,mvebu-pinctrl.txt.
-
-Required properties:
-- compatible must be "marvell,ap806-pinctrl",
-
-Available mpp pins/groups and functions:
-Note: brackets (x) are not part of the mpp name for marvell,function and given
-only for more detailed description in this document.
-
-name pins functions
-================================================================================
-mpp0 0 gpio, sdio(clk), spi0(clk)
-mpp1 1 gpio, sdio(cmd), spi0(miso)
-mpp2 2 gpio, sdio(d0), spi0(mosi)
-mpp3 3 gpio, sdio(d1), spi0(cs0n)
-mpp4 4 gpio, sdio(d2), i2c0(sda)
-mpp5 5 gpio, sdio(d3), i2c0(sdk)
-mpp6 6 gpio, sdio(ds)
-mpp7 7 gpio, sdio(d4), uart1(rxd)
-mpp8 8 gpio, sdio(d5), uart1(txd)
-mpp9 9 gpio, sdio(d6), spi0(cs1n)
-mpp10 10 gpio, sdio(d7)
-mpp11 11 gpio, uart0(txd)
-mpp12 12 gpio, sdio(pw_off), sdio(hw_rst)
-mpp13 13 gpio
-mpp14 14 gpio
-mpp15 15 gpio
-mpp16 16 gpio
-mpp17 17 gpio
-mpp18 18 gpio
-mpp19 19 gpio, uart0(rxd), sdio(pw_off)
-
-GPIO:
------
-For common binding part and usage, refer to
-Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml.
-
-Required properties:
-
-- compatible: "marvell,armada-8k-gpio"
-
-- offset: offset address inside the syscon block
-
-Optional properties:
-
-- marvell,pwm-offset: offset address of PWM duration control registers inside
- the syscon block
-
-Example:
-ap_syscon: system-controller@...000 {
- compatible = "syscon", "simple-mfd";
- reg = <0x6f4000 0x1000>;
-
- ap_clk: clock {
- compatible = "marvell,ap806-clock";
- #clock-cells = <1>;
- };
-
- ap_pinctrl: pinctrl {
- compatible = "marvell,ap806-pinctrl";
- };
-
- ap_gpio: gpio {
- compatible = "marvell,armada-8k-gpio";
- offset = <0x1040>;
- ngpios = <19>;
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&ap_pinctrl 0 0 19>;
- marvell,pwm-offset = <0x10c0>;
- #pwm-cells = <2>;
- clocks = <&ap_clk 3>;
- };
-};
-
-SYSTEM CONTROLLER 1
-===================
-
-Cluster clocks:
----------------
-
-Device Tree Clock bindings for cluster clock of Marvell
-AP806/AP807. Each cluster contain up to 2 CPUs running at the same
-frequency.
-
-Required properties:
- - compatible: must be one of:
- * "marvell,ap806-cpu-clock"
- * "marvell,ap807-cpu-clock"
-- #clock-cells : should be set to 1.
-
-- clocks : shall be the input parent clock(s) phandle for the clock
- (one per cluster)
-
-- reg: register range associated with the cluster clocks
-
-ap_syscon1: system-controller@...000 {
- compatible = "marvell,armada-ap806-syscon1", "syscon", "simple-mfd";
- reg = <0x6f8000 0x1000>;
-
- cpu_clk: clock-cpu@278 {
- compatible = "marvell,ap806-cpu-clock";
- clocks = <&ap_clk 0>, <&ap_clk 1>;
- #clock-cells = <1>;
- reg = <0x278 0xa30>;
- };
-};
diff --git a/Documentation/devicetree/bindings/clock/marvell,ap80x-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,ap80x-clock.yaml
new file mode 100644
index 000000000000..43b0631ba167
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,ap80x-clock.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,ap80x-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada AP80x System Controller Clocks
+
+maintainers:
+ - Gregory Clement <gregory.clement@...tlin.com>
+ - Miquel Raynal <miquel.raynal@...tlin.com>
+
+description: >
+ The AP806/AP807 is one of the two core HW blocks of the Marvell Armada
+ 7K/8K/931x SoCs. It contains system controllers, which provide several
+ registers giving access to numerous features: clocks, pin-muxing and many
+ other SoC configuration items.
+
+properties:
+ compatible:
+ enum:
+ - marvell,ap806-clock
+ - marvell,ap806-cpu-clock
+ - marvell,ap807-clock
+ - marvell,ap807-cpu-clock
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ items:
+ - description: cluster 0 parent clock phandle
+ - description: cluster 1 parent clock phandle
+
+required:
+ - compatible
+ - "#clock-cells"
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - marvell,ap806-cpu-clock
+ - marvell,ap807-cpu-clock
+ then:
+ required:
+ - clocks
diff --git a/Documentation/devicetree/bindings/pinctrl/marvell,ap806-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/marvell,ap806-pinctrl.yaml
new file mode 100644
index 000000000000..00a7e358a8c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/marvell,ap806-pinctrl.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/marvell,ap806-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell AP806 pin controller
+
+maintainers:
+ - Gregory Clement <gregory.clement@...tlin.com>
+ - Miquel Raynal <miquel.raynal@...tlin.com>
+
+properties:
+ compatible:
+ const: marvell,ap806-pinctrl
+
+ reg:
+ maxItems: 1
+
+patternProperties:
+ '-pins$':
+ type: object
+ additionalProperties: false
+
+ properties:
+ marvell,function:
+ $ref: /schemas/types.yaml#/definitions/string
+ description:
+ Indicates the function to select.
+ enum: [ gpio, i2c0, sdio, spi0, uart0, uart1 ]
+
+ marvell,pins:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description:
+ Array of MPP pins to be used for the given function.
+ minItems: 1
+ maxItems: 20
+ items:
+ enum: [
+ mpp0, mpp1, mpp2, mpp3, mpp4, mpp5, mpp6, mpp7, mpp8, mpp9, mpp10,
+ mpp11, mpp12, mpp13, mpp14, mpp15, mpp16, mpp17, mpp18, mpp19
+ ]
+
+allOf:
+ - $ref: pinctrl.yaml#
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ pinctrl {
+ compatible = "marvell,ap806-pinctrl";
+
+ uart0_pins: uart0-pins {
+ marvell,pins = "mpp11", "mpp19";
+ marvell,function = "uart0";
+ };
+ };
--
2.51.0
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