commit 2ec941f5acf730ffee1a7e0935522d178ae46859
author Mark Kettenis <kettenis@openbsd.org> Sat Oct 23 16:58:06 2021 +0200
committer Tom Rini <trini@konsulko.com> Sun Oct 31 08:46:44 2021 -0400
tree 8cd0ddf17ff5ae35845dafc9687362fa0cab8d56
parent 357a256352219540865fc6ef35a98b1ff3ea66a8

arm: dts: apple: Add preliminary device trees

Add preliminary device trees for the Apple M1 mini (2020) and
Apple M1 Macbook Pro 13" (2020).  Device tree bindings for
the Apple M1 SoC are still being formalized and these device
trees will be synchronized with the Linux kernel as needed.

The device trees in this commit are based on the initial Apple
M1 device trees from Linux 5.13, nodes for dart, pcie, pinctrl,
pmgr, usb based on bindings on track for inclusion in Linux
5.15 and 5.16 and nodes for i2c, mailbox, nvme, pmu, spmi and
watchdog that don't have a proposed binding yet.

These device trees are provided as a reference only as U-Boot
uses the device tree passed by the m1n1 bootloader.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/t8103-j274.dts

diff --git a/arch/arm/dts/t8103-j274.dts b/arch/arm/dts/t8103-j274.dts
new file mode 100644
index 0000000..aef1ae2
--- /dev/null
+++ b/arch/arm/dts/t8103-j274.dts
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple Mac mini (M1, 2020)
+ *
+ * target-type: J274
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+/dts-v1/;
+
+#include "t8103.dtsi"
+
+/ {
+	compatible = "apple,j274", "apple,t8103", "apple,arm-platform";
+	model = "Apple Mac mini (M1, 2020)";
+
+	aliases {
+		serial0 = &serial0;
+		ethernet0 = &eth0;
+		wifi0 = &wifi0;
+	};
+
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		stdout-path = "serial0";
+
+		framebuffer0: framebuffer@0 {
+			compatible = "apple,simple-framebuffer", "simple-framebuffer";
+			reg = <0 0 0 0>; /* To be filled by loader */
+			/* Format properties will be added by loader */
+			status = "disabled";
+		};
+	};
+
+	memory@800000000 {
+		device_type = "memory";
+		reg = <0x8 0 0x2 0>; /* To be filled by loader */
+	};
+};
+
+&serial0 {
+	status = "okay";
+};
+
+&pcie0_dart_0 {
+	status = "okay";
+};
+
+&pcie0_dart_1 {
+	status = "okay";
+};
+
+&pcie0_dart_2 {
+	status = "okay";
+};
+
+&pcie0 {
+	status = "okay";
+
+	pci0: pci@0,0 {
+		device_type = "pci";
+		reg = <0x0 0x0 0x0 0x0 0x0>;
+		pwren-gpios = <&smc 13 0>;
+		reset-gpios = <&pinctrl_ap 152 0>;
+		max-link-speed = <2>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+	};
+
+	pci1: pci@1,0 {
+		device_type = "pci";
+		reg = <0x800 0x0 0x0 0x0 0x0>;
+		reset-gpios = <&pinctrl_ap 153 0>;
+		max-link-speed = <2>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+	};
+
+	pci2: pci@2,0 {
+		device_type = "pci";
+		reg = <0x1000 0x0 0x0 0x0 0x0>;
+		reset-gpios = <&pinctrl_ap 33 0>;
+		max-link-speed = <1>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+	};
+};
+
+&pci0 {
+	wifi0: network@0,0 {
+		reg = <0x10000 0x0 0x0 0x0 0x0>;
+		local-mac-address = [00 00 00 00 00 00];
+	};
+};
+
+&pci2 {
+	eth0: ethernet@0,0 {
+		reg = <0x30000 0x0 0x0 0x0 0x0>;
+		local-mac-address = [00 00 00 00 00 00];
+	};
+};
+
+&dwc3_0_dart_0 {
+	status = "okay";
+};
+
+&dwc3_0_dart_1 {
+	status = "okay";
+};
+
+&dwc3_0 {
+	status = "okay";
+};
+
+&dwc3_1_dart_0 {
+	status = "okay";
+};
+
+&dwc3_1_dart_1 {
+	status = "okay";
+};
+
+&dwc3_1 {
+	status = "okay";
+};