[PATCH 0/6] Initial Apple Silicon A18 Pro device trees and dt-bindings

[PATCH 0/6] Initial Apple Silicon A18 Pro device trees and dt-bindings

[Yureka Lilian]

Hi,

This series adds initial device trees and dt-bindings for the A18 Pro
(t8140) SoC and the MacBook Neo (the only Mac using this SoC).
It only covers a minimal amount of hardware, but is nontheless useful
for further development work. The hardware added here has remained
largely unchanged from the earlier generation Apple Silicon Macs.

Similar to the M4 devices, changes to the m1n1 bootloader are required
to boot Linux on the MacBook Neo.
Also, SMP boot depends on further patches to avoid WFI and WFIT
instructions [1][2].

Merge strategy:

Since there are no actual driver changes in this series, we'd prefer to
merge the dt-bindings changes through the apple-soc tree once Acked by
the respective maintainers.

Link[1]: https://lore.kernel.org/all/20260804-arm64-idle-param-v3-1-d10f8159062b@cyberchaos.dev/
Link[2]: https://lore.kernel.org/all/20260811-idreg-override-wfxt-v1-1-1c71228d0719@cyberchaos.dev/
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
Yureka Lilian (6):
      dt-bindings: arm: cpus: Add Apple A18 Pro CPU core compatibles
      dt-bindings: arm: apple: apple,pmgr: Add t8140 compatible
      dt-bindings: arm: power: apple,pmgr-pwrstate: Add t8140 compatible
      dt-bindings: interrupt-controller: apple,aic2: Add apple,t8140 compatible
      dt-bindings: watchdog: apple,wdt: Add t8140 compatible
      arm64: dts: apple: Add minimal MacBook Neo device tree

 Documentation/devicetree/bindings/arm/apple.yaml   |  11 +
 .../devicetree/bindings/arm/apple/apple,pmgr.yaml  |   1 +
 Documentation/devicetree/bindings/arm/cpus.yaml    |   2 +
 .../bindings/interrupt-controller/apple,aic2.yaml  |   1 +
 .../bindings/power/apple,pmgr-pwrstate.yaml        |   1 +
 .../devicetree/bindings/watchdog/apple,wdt.yaml    |   1 +
 arch/arm64/boot/dts/apple/Makefile                 |   1 +
 arch/arm64/boot/dts/apple/t8140-j700.dts           |  52 ++
 arch/arm64/boot/dts/apple/t8140-pmgr.dtsi          | 771 +++++++++++++++++++++
 arch/arm64/boot/dts/apple/t8140.dtsi               | 202 ++++++
 10 files changed, 1043 insertions(+)
---
base-commit: e5e04726cdd043e309677071ab1b65a4b18f422b
change-id: 20260904-apple-a18-pro-initial-devicetrees-c457d127efcb
prerequisite-change-id: 20260705-apple-m4-initial-devicetrees-f6ebb1c7a2cd:v3
prerequisite-patch-id: 11762ddf0be3ad407ea90e5b01a0856a57ce1242
prerequisite-patch-id: d303d5493a501b215f43bd1ff9d40a889203f907
prerequisite-patch-id: 15a6a7981c2a70392f0a4c3d2fe274785c69c045
prerequisite-patch-id: aa33c268df85bae717859a0e70ac2be14cfc9a14
prerequisite-patch-id: 2a38f6f2f025888d93b0092f1188541f38e96747
prerequisite-patch-id: 0ffe9857d951e317ec349ee50a7acf827ed94cc5
prerequisite-patch-id: 66bfdc68d5b66325495b07f256117afa2b5c99af
prerequisite-patch-id: 4752b7d602d93b04ed879c6eaf7161b3546ad953
prerequisite-patch-id: 88d22cb297f45d9044363727d74864ed4ad95eee

Best regards,
--  
Yureka Lilian <yureka@cyberchaos.dev>

[PATCH 1/6] dt-bindings: arm: cpus: Add Apple A18 Pro CPU core compatibles

[Yureka Lilian]

Add "apple,tahiti-e" and "apple,tahiti-p" compatibles for the A18 Pro
efficiency and performance CPU cores respectively. As with the M4 cores,
there is no longer a generational codename, so we assign the core
compatible based on SoC codename ("Tahiti") plus core type (E-Core /
P-Core).

Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
 Documentation/devicetree/bindings/arm/cpus.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index c3facc98bf83..9c02cc7e4b37 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml
@@ -95,6 +95,8 @@ properties:
           - apple,mistral
           - apple,monsoon
           - apple,sawtooth
+          - apple,tahiti-e
+          - apple,tahiti-p
           - apple,twister
           - apple,typhoon
           - arm,arm710t

-- 
2.55.0

[PATCH 2/6] dt-bindings: arm: apple: apple,pmgr: Add t8140 compatible

[Yureka Lilian]

The PMGR blocks on the Apple silicon A18 Pro SoC (t8140) is compatible
with the M1-M4 SoCs. Add "apple,t8140-pmgr" as A18 Pro specific
compatible.

Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
 Documentation/devicetree/bindings/arm/apple.yaml            | 11 +++++++++++
 Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml |  1 +
 2 files changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/apple.yaml b/Documentation/devicetree/bindings/arm/apple.yaml
index 5d87a4fef193..7c3e7131a5e7 100644
--- a/Documentation/devicetree/bindings/arm/apple.yaml
+++ b/Documentation/devicetree/bindings/arm/apple.yaml
@@ -82,6 +82,10 @@ description: |
   - iPhone 8 Plus
   - iPhone X
 
+  Devices based on the "A18 Pro" SoC:
+
+  - MacBook Neo (A18 Pro, 2026)
+
   Devices based on the "M1" SoC:
 
   - Mac mini (M1, 2020)
@@ -300,6 +304,13 @@ properties:
           - const: apple,t8015
           - const: apple,arm-platform
 
+      - description: Apple A18 Pro SoC based platforms
+        items:
+          - enum:
+              - apple,j700  # MacBook Neo (A18 Pro, 2026)
+          - const: apple,t8140
+          - const: apple,arm-platform
+
       - description: Apple M1 SoC based platforms
         items:
           - enum:
diff --git a/Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml b/Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml
index da660fa13f77..bf21a5b3a4ac 100644
--- a/Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml
+++ b/Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml
@@ -42,6 +42,7 @@ properties:
               - apple,t6031-pmgr
               - apple,t8122-pmgr
               - apple,t8132-pmgr
+              - apple,t8140-pmgr
           - const: apple,t8103-pmgr
           - const: syscon
           - const: simple-mfd

-- 
2.55.0

[PATCH 3/6] dt-bindings: arm: power: apple,pmgr-pwrstate: Add t8140 compatible

[Yureka Lilian]

The device power state management of the PMGR blocks on the Apple
silicon A18 Pro SoC (t8140) is compatible with the M1-M4 SoCs.
Add "apple,t8140-pmgr-pwrstate" as A18 Pro specific compatible.

Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
 Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml b/Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml
index b24ea8e54e11..dcffdd12c8c7 100644
--- a/Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml
+++ b/Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml
@@ -49,6 +49,7 @@ properties:
               - apple,t6031-pmgr-pwrstate
               - apple,t8122-pmgr-pwrstate
               - apple,t8132-pmgr-pwrstate
+              - apple,t8140-pmgr-pwrstate
           - const: apple,t8103-pmgr-pwrstate
 
   reg:

-- 
2.55.0

[PATCH 4/6] dt-bindings: interrupt-controller: apple,aic2: Add apple,t8140 compatible

[Yureka Lilian]

The Apple t8140 (A18 Pro) SoC uses an AIC3 as interrupt controller, same as
the M1-M4 SoCs.

Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
 Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml b/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
index 1cb886785173..e3cadc5ad39d 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
@@ -46,6 +46,7 @@ properties:
               - apple,t6030-aic3
               - apple,t6031-aic3
               - apple,t8132-aic3
+              - apple,t8140-aic3
           - const: apple,t8122-aic3
       - const: apple,t8122-aic3
 

-- 
2.55.0

[PATCH 5/6] dt-bindings: watchdog: apple,wdt: Add t8140 compatible

[Yureka Lilian]

The watchdog on the Apple t8140 (A18 Pro) SoC is compatible with the
M1-M4 SoCs. Add "apple,t8140-wdt" as SoC specific compatible.

Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
index ca4cf01db59f..1af924157f7c 100644
--- a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
@@ -22,6 +22,7 @@ properties:
               - apple,t6031-wdt
               - apple,t8122-wdt
               - apple,t8132-wdt
+              - apple,t8140-wdt
           - const: apple,t8103-wdt
       - items:
           - enum:

-- 
2.55.0

[PATCH 6/6] arm64: dts: apple: Add minimal MacBook Neo device tree

[Yureka Lilian]

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@cyberchaos.dev>
---
 arch/arm64/boot/dts/apple/Makefile        |   1 +
 arch/arm64/boot/dts/apple/t8140-j700.dts  |  52 ++
 arch/arm64/boot/dts/apple/t8140-pmgr.dtsi | 771 ++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/apple/t8140.dtsi      | 202 ++++++++
 4 files changed, 1026 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/Makefile b/arch/arm64/boot/dts/apple/Makefile
index 62999574a36b..4f31beeb11ac 100644
--- a/arch/arm64/boot/dts/apple/Makefile
+++ b/arch/arm64/boot/dts/apple/Makefile
@@ -109,3 +109,4 @@ dtb-$(CONFIG_ARCH_APPLE) += t8132-j624.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8132-j713.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8132-j715.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8132-j773g.dtb
+dtb-$(CONFIG_ARCH_APPLE) += t8140-j700.dtb
diff --git a/arch/arm64/boot/dts/apple/t8140-j700.dts b/arch/arm64/boot/dts/apple/t8140-j700.dts
new file mode 100644
index 000000000000..029d6fdda3ad
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/t8140-j700.dts
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple MacBook Neo
+ *
+ * target-type: J700
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+/dts-v1/;
+
+#include "t8140.dtsi"
+
+/ {
+	compatible = "apple,j700", "apple,t8140", "apple,arm-platform";
+	model = "Apple MacBook Neo";
+
+	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";
+		};
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		/* To be filled by loader */
+	};
+
+	memory@800000000 {
+		device_type = "memory";
+		reg = <0x100 0 0x2 0>; /* To be filled by loader */
+	};
+};
+
+&serial0 {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/apple/t8140-pmgr.dtsi b/arch/arm64/boot/dts/apple/t8140-pmgr.dtsi
new file mode 100644
index 000000000000..91bdb84510fd
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/t8140-pmgr.dtsi
@@ -0,0 +1,771 @@
+&pmgr {
+	ps_sep_aon: power-controller@60 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x60 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "sep_aon";
+		apple,always-on;
+	};
+
+	ps_msg: power-controller@108 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x108 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "msg";
+	};
+
+	ps_aic: power-controller@110 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x110 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "aic";
+		apple,always-on;
+	};
+
+	ps_dwi: power-controller@118 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x118 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "dwi";
+	};
+
+	ps_gpio: power-controller@120 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x120 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "gpio";
+	};
+
+	ps_pmc: power-controller@138 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x138 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pmc";
+	};
+
+	ps_pms_fpwm0: power-controller@140 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x140 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pms_fpwm0";
+	};
+
+	ps_pms_fpwm1: power-controller@148 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x148 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pms_fpwm1";
+	};
+
+	ps_pms_fpwm2: power-controller@150 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x150 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pms_fpwm2";
+	};
+
+	ps_pms_fpwm3: power-controller@158 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x158 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pms_fpwm3";
+	};
+
+	ps_pms_fpwm4: power-controller@160 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x160 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pms_fpwm4";
+	};
+
+	ps_pms_c1ppt: power-controller@168 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x168 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pms_c1ppt";
+		apple,always-on;
+	};
+
+	ps_soc_rc: power-controller@170 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x170 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "soc_rc";
+	};
+
+	ps_soc_dpe: power-controller@178 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x178 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "soc_dpe";
+		apple,always-on;
+	};
+
+	ps_pmgr_soc_ocla: power-controller@180 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x180 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pmgr_soc_ocla";
+	};
+
+	ps_ispsens0: power-controller@188 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x188 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "ispsens0";
+	};
+
+	ps_ispsens1: power-controller@190 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x190 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "ispsens1";
+	};
+
+	ps_ap_tmm: power-controller@1a0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x1a0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "ap_tmm";
+	};
+
+	ps_afggfxni0: power-controller@1b8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x1b8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "afggfxni0";
+		apple,always-on;
+	};
+
+	ps_gfx: power-controller@1f0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x1f0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "gfx";
+	};
+
+	ps_jpg: power-controller@230 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x230 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "jpg";
+	};
+
+	ps_msr: power-controller@238 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x238 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "msr";
+	};
+
+	ps_venc0_sys: power-controller@240 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x240 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "venc0_sys";
+	};
+
+	ps_prores: power-controller@250 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x250 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "prores";
+	};
+
+	ps_apcie_gp: power-controller@258 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x258 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "apcie_gp";
+	};
+
+	ps_isp_sys: power-controller@268 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x268 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "isp_sys";
+	};
+
+	ps_ans: power-controller@278 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x278 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "ans";
+		apple,always-on;
+	};
+
+	ps_disp_sys: power-controller@280 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x280 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "disp_sys";
+		apple,always-on; /* TODO: figure out if we can enable PM here */
+	};
+
+	ps_dispext0_sys: power-controller@288 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x288 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "dispext0_sys";
+	};
+
+	ps_ane_sys: power-controller@290 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x290 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "ane_sys";
+	};
+
+	ps_msr_ase_core: power-controller@298 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x298 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "msr_ase_core";
+		power-domains = <&ps_msr>;
+	};
+
+	ps_apcie_sys_gp: power-controller@2a0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2a0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "apcie_sys_gp";
+		power-domains = <&ps_apcie_gp>;
+	};
+
+	ps_sio_cpu: power-controller@2a8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2a8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "sio_cpu";
+	};
+
+	ps_fpwm0: power-controller@2b0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2b0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "fpwm0";
+	};
+
+	ps_fpwm1: power-controller@2b8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2b8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "fpwm1";
+	};
+
+	ps_fpwm2: power-controller@2c0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2c0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "fpwm2";
+	};
+
+	ps_i2c0: power-controller@2c8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2c8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "i2c0";
+	};
+
+	ps_i2c1: power-controller@2d0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2d0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "i2c1";
+	};
+
+	ps_i2c2: power-controller@2d8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2d8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "i2c2";
+	};
+
+	ps_i2c3: power-controller@2e0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2e0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "i2c3";
+	};
+
+	ps_i2c4: power-controller@2e8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2e8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "i2c4";
+	};
+
+	ps_spi_p: power-controller@2f0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2f0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "spi_p";
+	};
+
+	ps_uart_p: power-controller@2f8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2f8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "uart_p";
+	};
+
+	ps_dpa_p: power-controller@300 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x300 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "dpa_p";
+		apple,always-on;
+	};
+
+	ps_aes: power-controller@308 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x308 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "aes";
+	};
+
+	ps_apcie_st: power-controller@310 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x310 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "apcie_st";
+		power-domains = <&ps_ans>;
+	};
+
+	ps_disp_fe: power-controller@318 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x318 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "disp_fe";
+		power-domains = <&ps_disp_sys>;
+		apple,always-on; /* TODO: figure out if we can enable PM here */
+	};
+
+	ps_dispext0_fe: power-controller@320 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x320 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "dispext0_fe";
+		power-domains = <&ps_dispext0_sys>;
+	};
+
+	ps_dispext0_cpu: power-controller@328 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x328 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "dispext0_cpu";
+		power-domains = <&ps_dispext0_fe>;
+
+		status = "disabled"; /* Locked, don't touch it */
+	};
+
+	ps_spi0: power-controller@330 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x330 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "spi0";
+		power-domains = <&ps_spi_p>;
+	};
+
+	ps_spi1: power-controller@338 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x338 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "spi1";
+		power-domains = <&ps_spi_p>;
+	};
+
+	ps_spi2: power-controller@340 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x340 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "spi2";
+		power-domains = <&ps_spi_p>;
+	};
+
+	ps_spi3: power-controller@348 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x348 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "spi3";
+		power-domains = <&ps_spi_p>;
+	};
+
+	ps_qspi: power-controller@350 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x350 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "qspi";
+		power-domains = <&ps_spi_p>;
+	};
+
+	ps_uart_n: power-controller@358 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x358 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "uart_n";
+		power-domains = <&ps_uart_p>;
+	};
+
+	ps_uart0: power-controller@360 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x360 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "uart0";
+		power-domains = <&ps_uart_p>;
+	};
+
+	ps_uart1: power-controller@368 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x368 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "uart1";
+		power-domains = <&ps_uart_p>;
+	};
+
+	ps_uart2: power-controller@370 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x370 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "uart2";
+		power-domains = <&ps_uart_p>;
+	};
+
+	ps_uart3: power-controller@378 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x378 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "uart3";
+		power-domains = <&ps_uart_p>;
+	};
+
+	ps_uart4: power-controller@380 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x380 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "uart4";
+		power-domains = <&ps_uart_p>;
+	};
+
+	ps_uart5: power-controller@388 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x388 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "uart5";
+		power-domains = <&ps_uart_p>;
+	};
+
+	ps_dpa0: power-controller@390 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x390 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "dpa0";
+		power-domains = <&ps_dpa_p>;
+	};
+
+	ps_dpa1: power-controller@398 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x398 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "dpa1";
+		power-domains = <&ps_dpa_p>;
+	};
+
+	ps_apcie_sys_st: power-controller@3a0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3a0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "apcie_sys_st";
+		power-domains = <&ps_ans>, <&ps_apcie_st>;
+	};
+
+	ps_apcie_phy_sw: power-controller@3c0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3c0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "apcie_phy_sw";
+		power-domains = <&ps_apcie_sys_st>, <&ps_apcie_sys_gp>;
+	};
+
+	ps_pmp: power-controller@3d0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3d0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pmp";
+		apple,always-on;
+	};
+
+	ps_pms_sram: power-controller@3d8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3d8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "pms_sram";
+		apple,always-on;
+	};
+
+	ps_atc0_usb_aon: power-controller@3e0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3e0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "atc0_usb_aon";
+	};
+
+	ps_atc0_common: power-controller@3e8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3e8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "atc0_common";
+		power-domains = <&ps_atc0_usb_aon>;
+	};
+
+	ps_atc0_usb: power-controller@3f0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3f0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "atc0_usb";
+		power-domains = <&ps_atc0_common>;
+	};
+
+	ps_sep: power-controller@c00 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0xc00 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "sep";
+		apple,always-on;
+	};
+
+	ps_venc0_dma: power-controller@8000 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8000 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "venc0_dma";
+		power-domains = <&ps_venc0_sys>;
+	};
+
+	ps_venc0_pipe4: power-controller@8008 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8008 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "venc0_pipe4";
+		power-domains = <&ps_venc0_dma>;
+	};
+
+	ps_venc0_pipe5: power-controller@8010 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8010 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "venc0_pipe5";
+		power-domains = <&ps_venc0_dma>;
+	};
+
+	ps_venc0_me0: power-controller@8018 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8018 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "venc0_me0";
+		power-domains = <&ps_venc0_dma>;
+	};
+
+	ps_venc0_me1: power-controller@8020 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8020 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "venc0_me1";
+		power-domains = <&ps_venc0_me0>;
+	};
+};
+
+&pmgr_mini {
+	ps_debug_gated: power-controller@0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "debug_gated";
+		apple,always-on;
+	};
+
+	ps_nub_spmi0: power-controller@58 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x58 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "nub_spmi0";
+		apple,always-on;
+	};
+
+	ps_nub_spmi1: power-controller@60 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x60 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "nub_spmi1";
+		apple,always-on;
+	};
+
+	ps_nub_spmi_a0: power-controller@68 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x68 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "nub_spmi_a0";
+		apple,always-on;
+	};
+
+	ps_nub_aon_nogate: power-controller@78 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x78 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "nub_aon_nogate";
+		apple,always-on;
+	};
+
+	ps_nub_ocla: power-controller@80 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x80 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "nub_ocla";
+		apple,always-on;
+	};
+
+	ps_nub_gpio: power-controller@88 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x88 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "nub_gpio";
+		apple,always-on;
+	};
+
+	ps_nub_fabric: power-controller@a0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0xa0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "nub_fabric";
+		apple,always-on;
+	};
+
+	ps_nub_sram: power-controller@a8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0xa8 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "nub_sram";
+		apple,always-on;
+	};
+
+	ps_debug_switch: power-controller@b0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0xb0 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "debug_switch";
+		apple,always-on;
+	};
+
+	ps_smc_i2cm0: power-controller@8028 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8028 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "smc_i2cm0";
+		apple,always-on;
+	};
+
+	ps_smc_i2cm1: power-controller@8030 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8030 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "smc_i2cm1";
+		apple,always-on;
+	};
+
+	ps_smc_i2cm2: power-controller@8038 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8038 4>;
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		label = "smc_i2cm2";
+		apple,always-on;
+	};
+};
diff --git a/arch/arm64/boot/dts/apple/t8140.dtsi b/arch/arm64/boot/dts/apple/t8140.dtsi
new file mode 100644
index 000000000000..a1c6976abd50
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/t8140.dtsi
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple T8140 "A18 Pro" SoC
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+#include <dt-bindings/interrupt-controller/apple-aic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "apple,t8140", "apple,arm-platform";
+
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <2>;
+		#size-cells = <0>;
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&cpu_e0>;
+				};
+				core1 {
+					cpu = <&cpu_e1>;
+				};
+				core2 {
+					cpu = <&cpu_e2>;
+				};
+				core3 {
+					cpu = <&cpu_e3>;
+				};
+			};
+
+			cluster1 {
+				core0 {
+					cpu = <&cpu_p0>;
+				};
+				core1 {
+					cpu = <&cpu_p1>;
+				};
+			};
+		};
+
+		cpu_e0: cpu@0 {
+			compatible = "apple,tahiti-e";
+			device_type = "cpu";
+			reg = <0x0 0x0>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0>;
+			next-level-cache = <&l2_cache_0>;
+			i-cache-size = <0x20000>;
+			d-cache-size = <0x10000>;
+		};
+
+		cpu_e1: cpu@1 {
+			compatible = "apple,tahiti-e";
+			device_type = "cpu";
+			reg = <0x0 0x1>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0>;
+			next-level-cache = <&l2_cache_0>;
+			i-cache-size = <0x20000>;
+			d-cache-size = <0x10000>;
+		};
+
+
+		cpu_e2: cpu@2 {
+			compatible = "apple,tahiti-e";
+			device_type = "cpu";
+			reg = <0x0 0x2>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0>;
+			next-level-cache = <&l2_cache_0>;
+			i-cache-size = <0x20000>;
+			d-cache-size = <0x10000>;
+		};
+
+		cpu_e3: cpu@3 {
+			compatible = "apple,tahiti-e";
+			device_type = "cpu";
+			reg = <0x0 0x3>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0>;
+			next-level-cache = <&l2_cache_0>;
+			i-cache-size = <0x20000>;
+			d-cache-size = <0x10000>;
+		};
+
+		cpu_p0: cpu@10100 {
+			compatible = "apple,tahiti-p";
+			device_type = "cpu";
+			reg = <0x0 0x10100>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0>;
+			next-level-cache = <&l2_cache_1>;
+			i-cache-size = <0x30000>;
+			d-cache-size = <0x20000>;
+		};
+
+		cpu_p1: cpu@10101 {
+			compatible = "apple,tahiti-p";
+			device_type = "cpu";
+			reg = <0x0 0x10101>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0 0>;
+			next-level-cache = <&l2_cache_1>;
+			i-cache-size = <0x30000>;
+			d-cache-size = <0x20000>;
+		};
+
+		l2_cache_0: l2-cache-0 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x400000>;
+		};
+
+		l2_cache_1: l2-cache-1 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x1000000>;
+		};
+	};
+
+	clkref: clock-ref {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+		clock-output-names = "clkref";
+	};
+
+	soc: soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+
+		nonposted-mmio;
+		ranges;
+
+		pmgr: power-management@300700000 {
+			compatible = "apple,t8140-pmgr", "apple,t8103-pmgr", "syscon", "simple-mfd";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			reg = <0x3 0x700000 0 0x14000>;
+			/* child nodes are added in t8140-pmgr.dtsi */
+		};
+
+		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>;
+			reg-names = "core", "event";
+			power-domains = <&ps_aic>;
+		};
+
+		pmgr_mini: power-management@308280000 {
+			compatible = "apple,t8140-pmgr", "apple,t8103-pmgr", "syscon", "simple-mfd";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			reg = <0x3 0x8280000 0 0xc000>;
+			/* child nodes are added in t8140-pmgr.dtsi */
+		};
+
+		wdt: watchdog@3082b0000 {
+			compatible = "apple,t8140-wdt", "apple,t8103-wdt";
+			reg = <0x3 0x082b0000 0x0 0x4000>;
+			clocks = <&clkref>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 507 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		serial0: serial@385200000 {
+			compatible = "apple,s5l-uart";
+			reg = <0x3 0x85200000 0x0 0x1000>;
+			reg-io-width = <4>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 1092 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clkref>, <&clkref>;
+			clock-names = "uart", "clk_uart_baud0";
+			power-domains = <&ps_uart0>;
+			status = "disabled";
+		};
+	};
+
+	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>;
+	};
+};
+
+#include "t8140-pmgr.dtsi"

-- 
2.55.0

Re: [PATCH 2/6] dt-bindings: arm: apple: apple,pmgr: Add t8140 compatible

[Sven Peter]

On 04.09.26 21:49, Yureka Lilian wrote:
> The PMGR blocks on the Apple silicon A18 Pro SoC (t8140) is compatible
> with the M1-M4 SoCs. Add "apple,t8140-pmgr" as A18 Pro specific
> compatible.
> 
> Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
> ---
>   Documentation/devicetree/bindings/arm/apple.yaml            | 11 +++++++++++
>   Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml |  1 +

There's something off with this commit, it's doing two things at once 
and the description only mentions the smaller change.

Sven

Re: [PATCH 6/6] arm64: dts: apple: Add minimal MacBook Neo device tree

[Sven Peter]

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@cyberchaos.dev>

[...]

> +
> +	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

Re: [PATCH 2/6] dt-bindings: arm: apple: apple,pmgr: Add t8140 compatible

[Yureka Lilian]

On 9/4/26 22:30, Sven Peter wrote:
> On 04.09.26 21:49, Yureka Lilian wrote:
>> The PMGR blocks on the Apple silicon A18 Pro SoC (t8140) is compatible
>> with the M1-M4 SoCs. Add "apple,t8140-pmgr" as A18 Pro specific
>> compatible.
>>
>> Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
>> ---
>>   Documentation/devicetree/bindings/arm/apple.yaml            | 11 
>> +++++++++++
>>   Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml | 1 +
>
> There's something off with this commit, it's doing two things at once 
> and the description only mentions the smaller change.
>
> Sven


Good catch! I must have added one hunk too much while committing the 
change. Fixed locally / for v2.


Thanks,

- Yureka

Re: [PATCH 6/6] arm64: dts: apple: Add minimal MacBook Neo device tree

[Yureka Lilian]

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@cyberchaos.dev>
>
> [...]
>
>> +
>> +    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

Re: [PATCH 4/6] dt-bindings: interrupt-controller: apple,aic2: Add apple,t8140 compatible

[Nick Chan]

Yureka Lilian 於 2026/9/5 凌晨3:49 寫道:
> The Apple t8140 (A18 Pro) SoC uses an AIC3 as interrupt controller, same as
> the M1-M4 SoCs.
>
> Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
> ---
>  Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml b/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
> index 1cb886785173..e3cadc5ad39d 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
> +++ b/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
> @@ -46,6 +46,7 @@ properties:
>                - apple,t6030-aic3
>                - apple,t6031-aic3
>                - apple,t8132-aic3
> +              - apple,t8140-aic3

the title should be "... Add t8140 compatible" describing the hardware corresponding
to the added compatible since the compatible being added is not "apple,t8140".

(Alternatively, if you mention the compatible in title, say "...Add apple,t8140-aic3" as
"compatible" is already implied)


>            - const: apple,t8122-aic3
>        - const: apple,t8122-aic3
>  
>