Merge tag 'dt-vt8500-6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt into soc/dt

VT8500 DTS ARM changes for v6.16

1. New board: VIA APC Rock/Paper.
2. Add SCC ID register/socinfo node.
3. List all timer interrupts.

* tag 'dt-vt8500-6.16' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt:
  ARM: dts: vt8500: list all four timer interrupts
  ARM: dts: vt8500: add DT nodes for the system config ID register
  ARM: dts: vt8500: Add VIA APC Rock/Paper board
  dt-bindings: arm: vt8500: Add VIA APC Rock/Paper boards

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>

Author: arndb

Documentation/devicetree/bindings/arm/vt8500.yaml

@@ -7,19 +7,23 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: VIA/Wondermedia VT8500 Platforms
 
 maintainers:
-  - Tony Prisk <[email protected]>
-description: test
+  - Alexey Charkov <[email protected]>
 
 properties:
   $nodename:
     const: '/'
   compatible:
-    items:
+    oneOf:
       - enum:
           - via,vt8500
           - wm,wm8505
           - wm,wm8650
           - wm,wm8750
           - wm,wm8850
 
+      - description: VIA APC Rock and Paper boards
+        items:
+          - const: via,apc-rock
+          - const: wm,wm8950
+
 additionalProperties: true

arch/arm/boot/dts/vt8500/Makefile

@@ -4,4 +4,5 @@ dtb-$(CONFIG_ARCH_VT8500) += \
 	wm8505-ref.dtb \
 	wm8650-mid.dtb \
 	wm8750-apc8750.dtb \
-	wm8850-w70v2.dtb
+	wm8850-w70v2.dtb \
+	wm8950-apc-rock.dtb

arch/arm/boot/dts/vt8500/vt8500.dtsi

@@ -55,6 +55,11 @@
 			#gpio-cells = <2>;
 		};
 
+		chipid@d8120000 {
+			compatible = "via,vt8500-scc-id";
+			reg = <0xd8120000 0x4>;
+		};
+
 		pmc@d8130000 {
 			compatible = "via,vt8500-pmc";
 			reg = <0xd8130000 0x1000>;
@@ -106,7 +111,7 @@
 		timer@d8130100 {
 			compatible = "via,vt8500-timer";
 			reg = <0xd8130100 0x28>;
-			interrupts = <36>;
+			interrupts = <36>, <37>, <38>, <39>;
 		};
 
 		usb@d8007900 {

arch/arm/boot/dts/vt8500/wm8505.dtsi

@@ -66,6 +66,11 @@
 			#gpio-cells = <2>;
 		};
 
+		chipid@d8120000 {
+			compatible = "via,vt8500-scc-id";
+			reg = <0xd8120000 0x4>;
+		};
+
 		pmc@d8130000 {
 			compatible = "via,vt8500-pmc";
 			reg = <0xd8130000 0x1000>;
@@ -204,7 +209,7 @@
 		timer@d8130100 {
 			compatible = "via,vt8500-timer";
 			reg = <0xd8130100 0x28>;
-			interrupts = <36>;
+			interrupts = <36>, <37>, <38>, <39>;
 		};
 
 		usb@d8007100 {

arch/arm/boot/dts/vt8500/wm8650.dtsi

@@ -62,6 +62,11 @@
 			#gpio-cells = <2>;
 		};
 
+		chipid@d8120000 {
+			compatible = "via,vt8500-scc-id";
+			reg = <0xd8120000 0x4>;
+		};
+
 		pmc@d8130000 {
 			compatible = "via,vt8500-pmc";
 			reg = <0xd8130000 0x1000>;
@@ -176,7 +181,7 @@
 		timer@d8130100 {
 			compatible = "via,vt8500-timer";
 			reg = <0xd8130100 0x28>;
-			interrupts = <36>;
+			interrupts = <36>, <37>, <38>, <39>;
 		};
 
 		usb@d8007900 {

arch/arm/boot/dts/vt8500/wm8750.dtsi

@@ -68,6 +68,11 @@
 			#gpio-cells = <2>;
 		};
 
+		chipid@d8120000 {
+			compatible = "via,vt8500-scc-id";
+			reg = <0xd8120000 0x4>;
+		};
+
 		pmc@d8130000 {
 			compatible = "via,vt8500-pmc";
 			reg = <0xd8130000 0x1000>;
@@ -248,7 +253,7 @@
 		timer@d8130100 {
 			compatible = "via,vt8500-timer";
 			reg = <0xd8130100 0x28>;
-			interrupts = <36>;
+			interrupts = <36>, <37>, <38>, <39>;
 		};
 
 		usb@d8007900 {

arch/arm/boot/dts/vt8500/wm8850.dtsi

@@ -65,6 +65,11 @@
 			#gpio-cells = <2>;
 		};
 
+		chipid@d8120000 {
+			compatible = "via,vt8500-scc-id";
+			reg = <0xd8120000 0x4>;
+		};
+
 		pmc@d8130000 {
 			compatible = "via,vt8500-pmc";
 			reg = <0xd8130000 0x1000>;
@@ -235,7 +240,7 @@
 		timer@d8130100 {
 			compatible = "via,vt8500-timer";
 			reg = <0xd8130100 0x28>;
-			interrupts = <36>;
+			interrupts = <36>, <37>, <38>, <39>;
 		};
 
 		usb@d8007900 {

arch/arm/boot/dts/vt8500/wm8950-apc-rock.dts

@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2025 Alexey Charkov <[email protected]>
+ */
+
+/dts-v1/;
+/include/ "wm8950.dtsi"
+
+/ {
+	model = "VIA APC Rock";
+	compatible = "via,apc-rock", "wm,wm8950";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x20000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};

arch/arm/boot/dts/vt8500/wm8950.dtsi

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2025 Alexey Charkov <[email protected]>
+ */
+
+/* No differences have been discovered vs. WM8850, but chip markings differ */
+/include/ "wm8850.dtsi"
+
+/ {
+	compatible = "wm,wm8950";
+};