[PATCH V2 2/2] arm64: dts: mediatek: Add initial MT7981B and Xiaomi AX3000T

[Rafał Miłecki]

From: Rafał Miłecki <rafal at milecki.pl>

MT7981B (AKA MediaTek Filogic 820) is a dual-core ARM Cortex-A53 SoC.
One of market devices using this SoC is Xiaomi AX3000T.

This is initial contribution with basic SoC support. More hardware block
will get added later. Some will need their bindings (like auxadc).

Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
---
V2: Fix psci version
    Fix gic regs

 arch/arm64/boot/dts/mediatek/Makefile         |   1 +
 .../dts/mediatek/mt7981b-xiaomi-ax3000t.dts   |  15 +++
 arch/arm64/boot/dts/mediatek/mt7981b.dtsi     | 105 ++++++++++++++++++
 3 files changed, 121 insertions(+)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7981b-xiaomi-ax3000t.dts
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7981b.dtsi

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 0a189d5d8006..8bff11acfe1f 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -8,6 +8,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-evb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-x20-dev.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-rfb1.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-bananapi-bpi-r64.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7981b-xiaomi-ax3000t.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-emmc.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-nand.dtbo
diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-xiaomi-ax3000t.dts b/arch/arm64/boot/dts/mediatek/mt7981b-xiaomi-ax3000t.dts
new file mode 100644
index 000000000000..a314c3e05e50
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7981b-xiaomi-ax3000t.dts
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+
+/dts-v1/;
+
+#include "mt7981b.dtsi"
+
+/ {
+	compatible = "xiaomi,ax3000t", "mediatek,mt7981b";
+	model = "Xiaomi AX3000T";
+
+	memory at 40000000 {
+		reg = <0 0x40000000 0 0x10000000>;
+		device_type = "memory";
+	};
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
new file mode 100644
index 000000000000..4feff3d1c5f4
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+
+#include <dt-bindings/clock/mediatek,mt7981-clk.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	compatible = "mediatek,mt7981b";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu at 0 {
+			compatible = "arm,cortex-a53";
+			reg = <0x0>;
+			device_type = "cpu";
+			enable-method = "psci";
+		};
+
+		cpu at 1 {
+			compatible = "arm,cortex-a53";
+			reg = <0x1>;
+			device_type = "cpu";
+			enable-method = "psci";
+		};
+	};
+
+	oscillator-40m {
+		compatible = "fixed-clock";
+		clock-frequency = <40000000>;
+		clock-output-names = "clkxtal";
+		#clock-cells = <0>;
+	};
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
+	soc {
+		compatible = "simple-bus";
+		ranges;
+		#address-cells = <2>;
+		#size-cells = <2>;
+
+		gic: interrupt-controller at c000000 {
+			compatible = "arm,gic-v3";
+			reg = <0 0x0c000000 0 0x40000>,  /* GICD */
+			      <0 0x0c080000 0 0x200000>; /* GICR */
+			interrupt-parent = <&gic>;
+			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
+
+		infracfg: clock-controller at 10001000 {
+			compatible = "mediatek,mt7981-infracfg", "syscon";
+			reg = <0 0x10001000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		clock-controller at 1001b000 {
+			compatible = "mediatek,mt7981-topckgen", "syscon";
+			reg = <0 0x1001b000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		clock-controller at 1001e000 {
+			compatible = "mediatek,mt7981-apmixedsys";
+			reg = <0 0x1001e000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		pwm at 10048000 {
+			compatible = "mediatek,mt7981-pwm";
+			reg = <0 0x10048000 0 0x1000>;
+			clocks = <&infracfg CLK_INFRA_PWM_STA>,
+				<&infracfg CLK_INFRA_PWM_HCK>,
+				<&infracfg CLK_INFRA_PWM1_CK>,
+				<&infracfg CLK_INFRA_PWM2_CK>,
+				<&infracfg CLK_INFRA_PWM3_CK>;
+			clock-names = "top", "main", "pwm1", "pwm2", "pwm3";
+			#pwm-cells = <2>;
+		};
+
+		clock-controller at 15000000 {
+			compatible = "mediatek,mt7981-ethsys", "syscon";
+			reg = <0 0x15000000 0 0x1000>;
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+		};
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
-- 
2.35.3