Merge tag 'mtk-dts32-for-v6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into soc/dt

MediaTek mach ARM32 updates

This adds support for the MediaTek MT6572 SoC, found in various
old smartphones and tablets from various manufacturers.

In particular, this adds a board_dt_compat entry for this SoC
and its SMP bring up sequence to enable secondary cores.

* tag 'mtk-dts32-for-v6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux:
  ARM: dts: mediatek: add basic support for Lenovo A369i board
  ARM: dts: mediatek: add basic support for JTY D101 board
  ARM: dts: mediatek: add basic support for MT6572 SoC
  dt-bindings: arm: mediatek: add boards based on the MT6572 SoC
  dt-bindings: vendor-prefixes: add JTY
  dt-bindings: watchdog: mediatek,mtk-wdt: add MT6572
  dt-bindings: interrupt-controller: mediatek,mt6577-sysirq: add MT6572

Link: https://lore.kernel.org/r/20250711083656.33538-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

8 files changed, 236 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index a7e0a72f6e4c..985c4b429d5f 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -29,6 +29,11 @@ properties:
           - const: mediatek,mt2712
       - items:
           - enum:
+              - jty,d101
+              - lenovo,a369i
+          - const: mediatek,mt6572
+      - items:
+          - enum:
               - mediatek,mt6580-evbp1
           - const: mediatek,mt6580
       - items:
diff --git a/Documentation/devicetree/bindings/interrupt-controller/mediatek,mt6577-sysirq.yaml b/Documentation/devicetree/bindings/interrupt-controller/mediatek,mt6577-sysirq.yaml
index 123d24b05556..30d76692ca87 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/mediatek,mt6577-sysirq.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/mediatek,mt6577-sysirq.yaml
@@ -21,6 +21,7 @@ properties:
           - enum:
               - mediatek,mt2701-sysirq
               - mediatek,mt2712-sysirq
+              - mediatek,mt6572-sysirq
               - mediatek,mt6580-sysirq
               - mediatek,mt6582-sysirq
               - mediatek,mt6589-sysirq
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index e5bf8815d31d..446c0c46e0dd 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -786,6 +786,8 @@ patternProperties:
     description: Jide Tech
   "^joz,.*":
     description: JOZ BV
+  "^jty,.*":
+    description: JTY
   "^kam,.*":
     description: Kamstrup A/S
   "^karo,.*":
diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
index 8d2520241e37..ba0bfd73ab62 100644
--- a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
@@ -34,6 +34,7 @@ properties:
       - items:
           - enum:
               - mediatek,mt2701-wdt
+              - mediatek,mt6572-wdt
               - mediatek,mt6582-wdt
               - mediatek,mt6797-wdt
               - mediatek,mt7622-wdt
diff --git a/arch/arm/boot/dts/mediatek/Makefile b/arch/arm/boot/dts/mediatek/Makefile
index 1957947cb41c..e48de3efeb3b 100644
--- a/arch/arm/boot/dts/mediatek/Makefile
+++ b/arch/arm/boot/dts/mediatek/Makefile
@@ -1,6 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt2701-evb.dtb \
+	mt6572-jty-d101.dtb \
+	mt6572-lenovo-a369i.dtb \
 	mt6580-evbp1.dtb \
 	mt6582-prestigio-pmt5008-3g.dtb \
 	mt6589-aquaris5.dtb \
diff --git a/arch/arm/boot/dts/mediatek/mt6572-jty-d101.dts b/arch/arm/boot/dts/mediatek/mt6572-jty-d101.dts
new file mode 100644
index 000000000000..18c3cab6b7a3
--- /dev/null
+++ b/arch/arm/boot/dts/mediatek/mt6572-jty-d101.dts
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Max Shevchenko <wctrl@proton.me>
+ */
+
+/dts-v1/;
+#include "mt6572.dtsi"
+
+/ {
+	model = "JTY D101";
+	compatible = "jty,d101", "mediatek,mt6572";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		stdout-path = "serial0:921600n8";
+
+		framebuffer: framebuffer@bf400000 {
+			compatible = "simple-framebuffer";
+			memory-region = <&framebuffer_reserved>;
+			width = <1024>;
+			height = <600>;
+			stride = <(1024 * 2)>;
+			format = "r5g6b5";
+		};
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		connsys@80000000 {
+			reg = <0x80000000 0x100000>;
+			no-map;
+		};
+
+		modem@be000000 {
+			reg = <0xbe000000 0x1400000>;
+			no-map;
+		};
+
+		framebuffer_reserved: framebuffer@bf400000 {
+			reg = <0xbf400000 0xc00000>;
+			no-map;
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/mediatek/mt6572-lenovo-a369i.dts b/arch/arm/boot/dts/mediatek/mt6572-lenovo-a369i.dts
new file mode 100644
index 000000000000..c2f0c60ea777
--- /dev/null
+++ b/arch/arm/boot/dts/mediatek/mt6572-lenovo-a369i.dts
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Max Shevchenko <wctrl@proton.me>
+ */
+
+/dts-v1/;
+#include "mt6572.dtsi"
+
+/ {
+	model = "Lenovo A369i";
+	compatible = "lenovo,a369i", "mediatek,mt6572";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		stdout-path = "serial0:921600n8";
+
+		framebuffer: framebuffer@9fa00000 {
+			compatible = "simple-framebuffer";
+			memory-region = <&framebuffer_reserved>;
+			width = <480>;
+			height = <800>;
+			stride = <(480 * 2)>;
+			format = "r5g6b5";
+		};
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		connsys@80000000 {
+			reg = <0x80000000 0x100000>;
+			no-map;
+		};
+
+		framebuffer_reserved: framebuffer@9fa00000 {
+			reg = <0x9fa00000 0x600000>;
+			no-map;
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/mediatek/mt6572.dtsi b/arch/arm/boot/dts/mediatek/mt6572.dtsi
new file mode 100644
index 000000000000..ac70f266d698
--- /dev/null
+++ b/arch/arm/boot/dts/mediatek/mt6572.dtsi
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Max Shevchenko <wctrl@proton.me>
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	interrupt-parent = <&sysirq>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		enable-method = "mediatek,mt6589-smp";
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x0>;
+		};
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x1>;
+		};
+	};
+
+	uart_clk: dummy26m {
+		compatible = "fixed-clock";
+		clock-frequency = <26000000>;
+		#clock-cells = <0>;
+	};
+
+	system_clk: dummy13m {
+		compatible = "fixed-clock";
+		clock-frequency = <13000000>;
+		#clock-cells = <0>;
+	};
+
+	rtc_clk: dummy32k {
+		compatible = "fixed-clock";
+		clock-frequency = <32000>;
+		#clock-cells = <0>;
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "simple-bus";
+		ranges;
+
+		watchdog: watchdog@10007000 {
+			compatible = "mediatek,mt6572-wdt", "mediatek,mt6589-wdt";
+			reg = <0x10007000 0x100>;
+			interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_LOW>;
+			timeout-sec = <15>;
+			#reset-cells = <1>;
+		};
+
+		timer: timer@10008000 {
+			compatible = "mediatek,mt6572-timer", "mediatek,mt6577-timer";
+			reg = <0x10008000 0x80>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&system_clk>, <&rtc_clk>;
+			clock-names = "system-clk", "rtc-clk";
+		};
+
+		sysirq: interrupt-controller@10200100 {
+			compatible = "mediatek,mt6572-sysirq", "mediatek,mt6577-sysirq";
+			reg = <0x10200100 0x1c>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			interrupt-parent = <&gic>;
+		};
+
+		gic: interrupt-controller@10211000 {
+			compatible = "arm,cortex-a7-gic";
+			reg = <0x10211000 0x1000>,
+			      <0x10212000 0x2000>,
+			      <0x10214000 0x2000>,
+			      <0x10216000 0x2000>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			interrupt-parent = <&gic>;
+		};
+
+		uart0: serial@11005000 {
+			compatible = "mediatek,mt6572-uart", "mediatek,mt6577-uart";
+			reg = <0x11005000 0x400>;
+			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&uart_clk>;
+			clock-names = "baud";
+			status = "disabled";
+		};
+
+		uart1: serial@11006000 {
+			compatible = "mediatek,mt6572-uart", "mediatek,mt6577-uart";
+			reg = <0x11006000 0x400>;
+			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&uart_clk>;
+			clock-names = "baud";
+			status = "disabled";
+		};
+	};
+};