[PATCH 18/18] arm64: apple: Add initial Mac Mini 2020 (M1) devicetree
From: Hector Martin <hidden>
Date: 2021-02-04 20:45:04
Also in:
linux-arm-kernel, lkml
Subsystem:
arm and arm64 soc sub-architectures (common parts), arm/apple machine support, the rest · Maintainers:
Arnd Bergmann, Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij, Sven Peter, Janne Grunau, Linus Torvalds
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 <redacted> --- MAINTAINERS | 1 + arch/arm64/boot/dts/Makefile | 1 + arch/arm64/boot/dts/apple/Makefile | 2 + arch/arm64/boot/dts/apple/apple-j274.dts | 143 +++++++++++++++++++++++ 4 files changed, 147 insertions(+) create mode 100644 arch/arm64/boot/dts/apple/Makefile create mode 100644 arch/arm64/boot/dts/apple/apple-j274.dts
diff --git a/MAINTAINERS b/MAINTAINERS
index 3a54ee5747d3..5481b5bc2ef7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS@@ -1635,6 +1635,7 @@ C: irc://chat.freenode.net/asahi-dev T: git https://github.com/AsahiLinux/linux.git F: Documentation/devicetree/bindings/arm/AAPL.yaml F: Documentation/devicetree/bindings/interrupt-controller/AAPL,aic.yaml +F: arch/arm64/boot/dts/AAPL/ F: drivers/irqchip/irq-apple-aic.c F: include/dt-bindings/interrupt-controller/apple-aic.h
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 9b1170658d60..64f055d94948 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile@@ -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
diff --git a/arch/arm64/boot/dts/apple/Makefile b/arch/arm64/boot/dts/apple/Makefile
new file mode 100644
index 000000000000..ec03c474efd4
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/Makefile@@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +dtb-$(CONFIG_ARCH_APPLE) += apple-j274.dtb
diff --git a/arch/arm64/boot/dts/apple/apple-j274.dts b/arch/arm64/boot/dts/apple/apple-j274.dts
new file mode 100644
index 000000000000..238a1bcee066
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/apple-j274.dts@@ -0,0 +1,143 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2021 Hector Martin <marcan@marcan.st> + */ + +/dts-v1/; +#include <dt-bindings/interrupt-controller/apple-aic.h> +#include <dt-bindings/interrupt-controller/irq.h> + +/ { + model = "Apple Mac Mini M1 2020"; + compatible = "AAPL,j274", "AAPL,m1", "AAPL,arm-platform"; + #address-cells = <2>; + #size-cells = <2>; + + chosen { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + bootargs = "earlycon"; + stdout-path = "serial0:1500000"; + + framebuffer0: framebuffer@0 { + compatible = "AAPL,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 = <0 0 0 0>; // To be filled by loader + }; + + aliases { + serial0 = &serial0; + }; + + cpus { + #address-cells = <2>; + #size-cells = <0>; + + cpu0: cpu@0 { + compatible = "AAPL,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 = "AAPL,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 = "AAPL,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 = "AAPL,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 = "AAPL,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 = "AAPL,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 = "AAPL,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 = "AAPL,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>; + interrupts = <AIC_FIQ 0 IRQ_TYPE_LEVEL_HIGH>, + <AIC_FIQ 0 IRQ_TYPE_LEVEL_HIGH>, + <AIC_FIQ 1 IRQ_TYPE_LEVEL_HIGH>, + <AIC_FIQ 0 IRQ_TYPE_LEVEL_HIGH>; + }; + + clk24: clk24 { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + clock-output-names = "clk24"; + }; + + soc { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + aic: interrupt-controller@23b100000 { + compatible = "AAPL,m1-aic", "AAPL,aic"; + #interrupt-cells = <3>; + interrupt-controller; + reg = <0x2 0x3b100000 0x0 0x8000>; + }; + + serial0: serial@235200000 { + compatible = "AAPL,s5l-uart"; + reg = <0x2 0x35200000 0x0 0x1000>; + reg-io-width = <4>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 605 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk24>, <&clk24>; + clock-names = "uart", "clk_uart_baud0"; + }; + + }; +};
--
2.30.0