[PATCH 2/3] arm64: dts: qcom: Add initial sm6125 SoC support

[Eli Riggs <eli@rje.li>]

Initial support for SM6125 SoC. CPUs, fixed clocks,
interrupt controller, and UART.

This DTSI is ported from the forked vendor version from
XiaoMi which can be found at [0]. It seems internally
this board is referred to as "Trinket".

Since GCC isn't upstreamed yet, we use dummy clocks for GENI.

[0]: https://github.com/MiCode/Xiaomi_Kernel_OpenSource/blob/willow-p-oss/arch/arm64/boot/dts/qcom/trinket.dtsi

Signed-off-by: Eli Riggs <eli@rje.li>
---
 arch/arm64/boot/dts/qcom/sm6125.dtsi | 201 +++++++++++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/sm6125.dtsi

diff --git a/arch/arm64/boot/dts/qcom/sm6125.dtsi b/arch/arm64/boot/dts/qcom/sm6125.dtsi
new file mode 100644
index 0000000000000..4931402d20c9d
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm6125.dtsi
@@ -0,0 +1,201 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
+// Copyright (C) 2019 XiaoMi, Inc.
+// Copyright (C) 2020 Eli Riggs <eli@rje.li>
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	interrupt-parent = <&intc>;
+
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	chosen { };
+
+	clocks {
+		xo_board: xo-board {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <19200000>;
+			clock-output-names = "xo_board";
+		};
+		sleep-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <32000>;
+			clock-output-names = "sleep_clk";
+		};
+	};
+
+	cpus {
+		#address-cells = <2>;
+		#size-cells = <0>;
+		CPU0: cpu@100 {
+			device_type = "cpu";
+			compatible = "qcom,kryo260";
+			reg = <0x0 0x100>;
+			enable-method = "psci";
+			capacity-dmips-mhz = <1638>;
+			d-cache-size = <0x10000>;
+			i-cache-size = <0x10000>;
+		};
+		CPU1: cpu@101 {
+			device_type = "cpu";
+			compatible = "qcom,kryo260";
+			reg = <0x0 0x101>;
+			enable-method = "psci";
+			capacity-dmips-mhz = <1638>;
+			d-cache-size = <0x10000>;
+			i-cache-size = <0x10000>;
+		};
+		CPU2: cpu@102 {
+			device_type = "cpu";
+			compatible = "qcom,kryo260";
+			reg = <0x0 0x102>;
+			enable-method = "psci";
+			capacity-dmips-mhz = <1638>;
+			d-cache-size = <0x10000>;
+			i-cache-size = <0x10000>;
+		};
+		CPU3: cpu@103 {
+			device_type = "cpu";
+			compatible = "qcom,kryo260";
+			reg = <0x0 0x103>;
+			enable-method = "psci";
+			capacity-dmips-mhz = <1638>;
+			d-cache-size = <0x10000>;
+			i-cache-size = <0x10000>;
+		};
+		CPU4: cpu@0 {
+			device_type = "cpu";
+			compatible = "qcom,kryo260";
+			reg = <0x0 0x0>;
+			enable-method = "psci";
+			capacity-dmips-mhz = <1024>;
+			d-cache-size = <0x8000>;
+			i-cache-size = <0x8000>;
+		};
+		CPU5: cpu@1 {
+			device_type = "cpu";
+			compatible = "qcom,kryo260";
+			reg = <0x0 0x1>;
+			enable-method = "psci";
+			capacity-dmips-mhz = <1024>;
+			d-cache-size = <0x8000>;
+			i-cache-size = <0x8000>;
+		};
+		CPU6: cpu@2 {
+			device_type = "cpu";
+			compatible = "qcom,kryo260";
+			reg = <0x0 0x2>;
+			enable-method = "psci";
+			capacity-dmips-mhz = <1024>;
+			d-cache-size = <0x8000>;
+			i-cache-size = <0x8000>;
+		};
+		CPU7: cpu@3 {
+			device_type = "cpu";
+			compatible = "qcom,kryo260";
+			reg = <0x0 0x3>;
+			enable-method = "psci";
+			capacity-dmips-mhz = <1024>;
+			d-cache-size = <0x8000>;
+			i-cache-size = <0x8000>;
+		};
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&CPU4>;
+				};
+				core1 {
+					cpu = <&CPU5>;
+				};
+				core2 {
+					cpu = <&CPU6>;
+				};
+				core3 {
+					cpu = <&CPU7>;
+				};
+			};
+			cluster1 {
+				core0 {
+					cpu = <&CPU0>;
+				};
+				core1 {
+					cpu = <&CPU1>;
+				};
+				core2 {
+					cpu = <&CPU2>;
+				};
+				core3 {
+					cpu = <&CPU3>;
+				};
+			};
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		/* We expect the bootloader to fill this in */
+		reg = <0 0 0 0>;
+	};
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 1 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 2 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 3 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 0 IRQ_TYPE_LEVEL_LOW>;
+		clock-frequency = <19200000>;
+	};
+
+	soc: soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0 0 0xffffffff>;
+		compatible = "simple-bus";
+
+		intc: interrupt-controller@f200000 {
+			compatible = "arm,gic-v3";
+			reg = <0xf200000 0x10000>,	/* GICD */
+			      <0xf300000 0x100000>;	/* GICR * 8 */
+			#interrupt-cells = <3>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+			interrupt-controller;
+			#redistributor-regions = <1>;
+			redistributor-stride = <0x0 0x20000>;
+			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		/* This GENI and its children actually use GCC clocks,
+		 * but the bootloader has already set them up for us.
+		 * xo_board is used as a dummy here so the driver doesn't
+		 * give up.
+		 */
+		qupv3_0: geniqup@4ac0000 {
+			compatible = "qcom,geni-se-qup";
+			reg = <0x4ac0000 0x2000>;
+			clock-names = "m-ahb", "s-ahb";
+			clocks = <&xo_board>, <&xo_board>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			qupv3_se4_2uart: serial@4a90000 {
+				compatible = "qcom,geni-debug-uart";
+				reg = <0x4a90000 0x4000>;
+				interrupts = <GIC_SPI 331 IRQ_TYPE_LEVEL_HIGH>;
+				clock-names = "se";
+				clocks = <&xo_board>;
+			};
+		};
+	};
+};
-- 
2.20.1