@@ -1647,6 +1647,7 @@ C: irc://chat.freenode.net/asahi-dev
T: git https://github.com/AsahiLinux/linux.git
F: Documentation/devicetree/bindings/arm/apple.yaml
F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
+F: arch/arm64/boot/dts/apple/
F: drivers/irqchip/irq-apple-aic.c
F: include/dt-bindings/interrupt-controller/apple-aic.h
@@ -6,6 +6,7 @@ subdir-y += amazon
subdir-y += amd
subdir-y += amlogic
subdir-y += apm
+subdir-y += apple
subdir-y += arm
subdir-y += bitmain
subdir-y += broadcom
new file mode 100644
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_APPLE) += t8103-j274.dtb
new file mode 100644
@@ -0,0 +1,45 @@
+// 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;
+ };
+
+ 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";
+};
new file mode 100644
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple T8103 "M1" SoC
+ *
+ * Other names: H13G, "Tonga"
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+#include <dt-bindings/interrupt-controller/apple-aic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ compatible = "apple,t8103", "apple,arm-platform";
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ compatible = "apple,icestorm";
+ device_type = "cpu";
+ reg = <0x0 0x0>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0 0>; /* To be filled by loader */
+ };
+
+ cpu1: cpu@1 {
+ compatible = "apple,icestorm";
+ device_type = "cpu";
+ reg = <0x0 0x1>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0 0>; /* To be filled by loader */
+ };
+
+ cpu2: cpu@2 {
+ compatible = "apple,icestorm";
+ device_type = "cpu";
+ reg = <0x0 0x2>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0 0>; /* To be filled by loader */
+ };
+
+ cpu3: cpu@3 {
+ compatible = "apple,icestorm";
+ device_type = "cpu";
+ reg = <0x0 0x3>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0 0>; /* To be filled by loader */
+ };
+
+ cpu4: cpu@10100 {
+ compatible = "apple,firestorm";
+ device_type = "cpu";
+ reg = <0x0 0x10100>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0 0>; /* To be filled by loader */
+ };
+
+ cpu5: cpu@10101 {
+ compatible = "apple,firestorm";
+ device_type = "cpu";
+ reg = <0x0 0x10101>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0 0>; /* To be filled by loader */
+ };
+
+ cpu6: cpu@10102 {
+ compatible = "apple,firestorm";
+ device_type = "cpu";
+ reg = <0x0 0x10102>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0 0>; /* To be filled by loader */
+ };
+
+ cpu7: cpu@10103 {
+ compatible = "apple,firestorm";
+ device_type = "cpu";
+ reg = <0x0 0x10103>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0 0>; /* To be filled by loader */
+ };
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupt-parent = <&aic>;
+ interrupt-names = "phys", "virt", "hyp-phys", "hyp-virt";
+ interrupts = <AIC_FIQ AIC_TMR_GUEST_PHYS IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_FIQ AIC_TMR_GUEST_VIRT IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_FIQ AIC_TMR_HV_PHYS IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_FIQ AIC_TMR_HV_VIRT IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ clk24: clock-24m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ clock-output-names = "clk24";
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ ranges;
+ nonposted-mmio;
+
+ aic: interrupt-controller@23b100000 {
+ compatible = "apple,t8103-aic", "apple,aic";
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ reg = <0x2 0x3b100000 0x0 0x8000>;
+ };
+
+ serial0: serial@235200000 {
+ compatible = "apple,s5l-uart";
+ reg = <0x2 0x35200000 0x0 0x1000>;
+ reg-io-width = <4>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 605 IRQ_TYPE_LEVEL_HIGH>;
+ /*
+ * TODO: figure out the clocking properly, there may
+ * be a third selectable clock.
+ */
+ clocks = <&clk24>, <&clk24>;
+ clock-names = "uart", "clk_uart_baud0";
+ status = "disabled";
+ };
+ };
+};
This currently supports: * SMP (via spin-tables) * AIC IRQs * Serial (with earlycon) * Framebuffer A number of properties are dynamic, and based on system firmware decisions that vary from version to version. These are expected to be filled in by the loader. Signed-off-by: Hector Martin <marcan@marcan.st> --- MAINTAINERS | 1 + arch/arm64/boot/dts/Makefile | 1 + arch/arm64/boot/dts/apple/Makefile | 2 + arch/arm64/boot/dts/apple/t8103-j274.dts | 45 ++++++++ arch/arm64/boot/dts/apple/t8103.dtsi | 135 +++++++++++++++++++++++ 5 files changed, 184 insertions(+) create mode 100644 arch/arm64/boot/dts/apple/Makefile create mode 100644 arch/arm64/boot/dts/apple/t8103-j274.dts create mode 100644 arch/arm64/boot/dts/apple/t8103.dtsi