Commit 7d2d16cc authored by Hector Martin's avatar Hector Martin
Browse files

arm64: apple: Add initial Apple Mac mini (M1, 2020) devicetree 



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.

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarHector Martin <marcan@marcan.st>
parent aad9742f

MAINTAINERS

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@@ -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
































arch/arm64/boot/dts/Makefile



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@@ -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
































arch/arm64/boot/dts/apple/Makefile
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# SPDX-License-Identifier: GPL-2.0









dtb-$(CONFIG_ARCH_APPLE) += t8103-j274.dtb
























arch/arm64/boot/dts/apple/t8103-j274.dts
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// 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";









};
























arch/arm64/boot/dts/apple/t8103.dtsi
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// 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;



















		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";









		};



















		aic: interrupt-controller@23b100000 {









			compatible = "apple,t8103-aic", "apple,aic";









			#interrupt-cells = <3>;









			interrupt-controller;









			reg = <0x2 0x3b100000 0x0 0x8000>;









		};









	};









};