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Date:   Sun, 17 May 2020 04:54:07 -0700
From:   Eli Riggs <eli@....li>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, Eli Riggs <eli@....li>
Subject: [PATCH 2/3] arm64: dts: qcom: Add initial sm6125 SoC support

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@....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@....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@...0000 {
+			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@...0000 {
+			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@...0000 {
+				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

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