[PATCH 11/12] arm64: dts: mediatek: add mt7986a support

[Sam Shih <sam.shih@mediatek.com>]

Add basic chip support for Mediatek mt7986a, include
uart nodes with correct clocks, rng node with correct clock,
watchdog node and mt7986a pinctrl node.

Add cpu node, timer node, gic node, psci and reserved-memory node
for ARM Trusted Firmware,

Add clock controller nodes, include 40M clock source, topckgen, infracfg,
infracfg_ao (always on), apmixedsys and ethernet subsystem.

Signed-off-by: Sam Shih <sam.shih@mediatek.com>
---
 arch/arm64/boot/dts/mediatek/Makefile        |   1 +
 arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts |  49 ++++
 arch/arm64/boot/dts/mediatek/mt7986a.dtsi    | 235 +++++++++++++++++++
 3 files changed, 285 insertions(+)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7986a.dtsi

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 4f68ebed2e31..e6c3a73b9e4a 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -7,6 +7,7 @@ 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-$(CONFIG_ARCH_MEDIATEK) += mt7986a-rfb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8167-pumpkin.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm-hana.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
new file mode 100644
index 000000000000..a58347c09ab2
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ * Author: Sam.Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7986a.dtsi"
+
+/ {
+	model = "MediaTek MT7986a RFB";
+	compatible = "mediatek,mt7986a-rfb";
+	chosen {
+		bootargs = "console=ttyS0,115200n1 loglevel=8  \
+				earlycon=uart8250,mmio32,0x11002000";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins>;
+	status = "okay";
+};
+
+&pio {
+	uart1_pins: uart1-pins-42-to-45 {
+		mux {
+			function = "uart";
+			groups = "uart1";
+		};
+	};
+
+	uart2_pins: uart1-pins-46-to-49 {
+		mux {
+			function = "uart";
+			groups = "uart2";
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
new file mode 100644
index 000000000000..0fcaf70a4a71
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 MediaTek Inc.
+ * Author: Sam.Shih <sam.shih@mediatek.com>
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/mt7986-clk.h>
+
+/ {
+	compatible = "mediatek,mt7986a";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	clk40m: oscillator@0 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <40000000>;
+		clock-output-names = "clkxtal";
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			enable-method = "psci";
+			reg = <0x0>;
+			#cooling-cells = <2>;
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			enable-method = "psci";
+			reg = <0x1>;
+			#cooling-cells = <2>;
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			enable-method = "psci";
+			reg = <0x2>;
+			#cooling-cells = <2>;
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			enable-method = "psci";
+			compatible = "arm,cortex-a53";
+			reg = <0x3>;
+			#cooling-cells = <2>;
+		};
+	};
+
+	psci {
+		compatible  = "arm,psci-0.2";
+		method      = "smc";
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+		secmon_reserved: secmon@43000000 {
+			reg = <0 0x43000000 0 0x30000>;
+			no-map;
+		};
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&gic>;
+		clock-frequency = <13000000>;
+		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>;
+	};
+
+	soc {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		compatible = "simple-bus";
+		ranges;
+
+		gic: interrupt-controller@c000000 {
+			compatible = "arm,gic-v3";
+			#interrupt-cells = <3>;
+			interrupt-parent = <&gic>;
+			interrupt-controller;
+			reg = <0 0x0c000000 0 0x40000>,
+			      <0 0x0c080000 0 0x200000>;
+			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		infracfg_ao: infracfg_ao@10001000 {
+			compatible = "mediatek,mt7986-infracfg_ao", "syscon";
+			reg = <0 0x10001000 0 0x68>;
+			#clock-cells = <1>;
+		};
+
+		infracfg: infracfg@10001040 {
+			compatible = "mediatek,mt7986-infracfg", "syscon";
+			reg = <0 0x1000106c 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		topckgen: topckgen@1001b000 {
+			compatible = "mediatek,mt7986-topckgen", "syscon";
+			reg = <0 0x1001B000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		watchdog: watchdog@1001c000 {
+			compatible = "mediatek,mt7986-wdt",
+				     "mediatek,mt6589-wdt";
+			reg = <0 0x1001c000 0 0x1000>;
+			interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+			#reset-cells = <1>;
+			status = "disabled";
+		};
+
+		apmixedsys: apmixedsys@1001e000 {
+			compatible = "mediatek,mt7986-apmixedsys";
+			reg = <0 0x1001E000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		pio: pinctrl@1001f000 {
+			compatible = "mediatek,mt7986a-pinctrl";
+			reg = <0 0x1001f000 0 0x1000>,
+			      <0 0x11c30000 0 0x1000>,
+			      <0 0x11c40000 0 0x1000>,
+			      <0 0x11e20000 0 0x1000>,
+			      <0 0x11e30000 0 0x1000>,
+			      <0 0x11f00000 0 0x1000>,
+			      <0 0x11f10000 0 0x1000>,
+			      <0 0x1000b000 0 0x1000>;
+			reg-names = "gpio_base", "iocfg_rt_base", "iocfg_rb_base",
+				    "iocfg_lt_base", "iocfg_lb_base", "iocfg_tr_base",
+				    "iocfg_tl_base", "eint";
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&pio 0 0 100>;
+			interrupt-controller;
+			interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-parent = <&gic>;
+			#interrupt-cells = <2>;
+		};
+
+		sgmiisys0: syscon@10060000 {
+			compatible = "mediatek,mt7986-sgmiisys",
+				     "mediatek,mt7986-sgmiisys_0",
+				     "syscon";
+			reg = <0 0x10060000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		sgmiisys1: syscon@10070000 {
+			compatible = "mediatek,mt7986-sgmiisys",
+				     "mediatek,mt7986-sgmiisys_1",
+				     "syscon";
+			reg = <0 0x10070000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		trng: trng@1020f000 {
+			compatible = "mediatek,mt7986-rng",
+				     "mediatek,mt7623-rng";
+			reg = <0 0x1020f000 0 0x100>;
+			clocks = <&infracfg_ao CK_INFRA_TRNG_CK>;
+			clock-names = "rng";
+			status = "disabled";
+		};
+
+		uart0: serial@11002000 {
+			compatible = "mediatek,mt7986-uart",
+				     "mediatek,mt6577-uart";
+			reg = <0 0x11002000 0 0x400>;
+			interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&infracfg_ao CK_INFRA_UART0_SEL>,
+				 <&infracfg_ao CK_INFRA_UART0_CK>;
+			clock-names = "baud", "bus";
+			assigned-clocks = <&topckgen CK_TOP_UART_SEL>,
+					  <&infracfg_ao CK_INFRA_UART0_SEL>;
+			assigned-clock-parents = <&topckgen CK_TOP_CB_CKSQ_40M>,
+						 <&infracfg CK_INFRA_UART>;
+			status = "disabled";
+		};
+
+		uart1: serial@11003000 {
+			compatible = "mediatek,mt7986-uart",
+				     "mediatek,mt6577-uart";
+			reg = <0 0x11003000 0 0x400>;
+			interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&infracfg_ao CK_INFRA_UART1_SEL>,
+				 <&infracfg_ao CK_INFRA_UART1_CK>;
+			clock-names = "baud", "bus";
+			assigned-clocks = <&infracfg_ao CK_INFRA_UART1_SEL>;
+			assigned-clock-parents = <&infracfg CK_INFRA_CK_F26M>;
+			status = "disabled";
+		};
+
+		uart2: serial@11004000 {
+			compatible = "mediatek,mt7986-uart",
+				     "mediatek,mt6577-uart";
+			reg = <0 0x11004000 0 0x400>;
+			interrupts = <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&infracfg_ao CK_INFRA_UART2_SEL>,
+				 <&infracfg_ao CK_INFRA_UART2_CK>;
+			clock-names = "baud", "bus";
+			assigned-clocks = <&infracfg_ao CK_INFRA_UART2_SEL>;
+			assigned-clock-parents = <&infracfg CK_INFRA_CK_F26M>;
+			status = "disabled";
+		};
+
+		ethsys: syscon@15000000 {
+			 #address-cells = <1>;
+			 #size-cells = <1>;
+			 compatible = "mediatek,mt7986-ethsys",
+				      "syscon";
+			 reg = <0 0x15000000 0 0x1000>;
+			 #clock-cells = <1>;
+			 #reset-cells = <1>;
+		};
+
+	};
+
+};
-- 
2.29.2