Re: [PATCH 6/6] arm64: dts: apple: Add minimal MacBook Neo device tree
From: Yureka Lilian
Date: Fri Sep 04 2026 - 16:58:07 EST
On 9/4/26 22:34, Sven Peter wrote:
Hi,
On 04.09.26 21:49, Yureka Lilian wrote:
Added a device tree for the MacBook Neo, which uses the t8140 SoC
(A18 Pro) also found in the iPhone 16 Pro.
The device tree has a minimal set of devices limited to CPU cores,
interrupt controller, watchdog, serial and framebuffer.
Using the macOS 26.6.2 iBoot/firmware, the machine reliably boots
on a single core using the stock kernel.
Booting with smp requires avoiding the wfi and wfit instructions
in the idle loop and `delay()` respectively, since those instructions
cause a loss of architectural state on the secondary cores.
Signed-off-by: Yureka Lilian <yureka@xxxxxxxxxxxxxx>
[...]
+
+ memory@800000000 {
this doesn't fit the reg you use below.
+ device_type = "memory";
+ reg = <0x100 0 0x2 0>; /* To be filled by loader */
+ };
[....]
+
+ aic: interrupt-controller@301000000 {
+ compatible = "apple,t8140-aic3", "apple,t8122-aic3";
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ reg = <0x00000003 0x01000000 0x00000000 0x1cc000>,
+ <0x00000003 0x01040000 0x00000000 0x4000>;
please be consistent and use 0x3 and 0x0 here like for the rest.
Sven
Thanks for the review!
I've applied the suggestions to my branch.
- Yureka