[PATCH v2 0/7] Initial Apple Silicon A18 Pro device trees and dt-bindings

[PATCH v2 0/7] 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>
---
Changes in v2:
- Added " (A18 Pro, 2026)" to model name
- Fixed memory node alias inconsistency
- Fixed wdt and machine dt-bindings being in the same commit
- Reworded aic dt-bindings commit message
- Reformatted/reordered according to dt-check-style --mode=strict
- Link to v1: https://patch.msgid.link/20260904-apple-a18-pro-initial-devicetrees-v1-0-0c25401d165d@cyberchaos.dev

To: Rob Herring <robh@kernel.org>
To: Krzysztof Kozlowski <krzk+dt@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>
To: Lorenzo Pieralisi <lpieralisi@kernel.org>
To: Sven Peter <sven@kernel.org>
To: Janne Grunau <j@jannau.net>
To: Neal Gompa <neal@gompa.dev>
To: Hector Martin <marcan@marcan.st>
To: Thomas Gleixner <tglx@kernel.org>
To: Radu Rendec <radu@rendec.net>
To: Wim Van Sebroeck <wim@linux-watchdog.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: asahi@lists.linux.dev
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-watchdog@vger.kernel.org

---
Yureka Lilian (7):
      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 t8140 compatible
      dt-bindings: watchdog: apple,wdt: Add t8140 compatible
      dt-bindings: arm: apple: Add A18 Pro based devices
      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           |  53 ++
 arch/arm64/boot/dts/apple/t8140-pmgr.dtsi          | 777 +++++++++++++++++++++
 arch/arm64/boot/dts/apple/t8140.dtsi               | 205 ++++++
 10 files changed, 1053 insertions(+)
---
base-commit: f3f2d38a606edf92259aa5e57e083484798d7ea8
change-id: 20260904-apple-a18-pro-initial-devicetrees-c457d127efcb

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

[PATCH v2 1/7] 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).

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
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 c328e9fb9843..5d79da63301b 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 v2 2/7] 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/apple,pmgr.yaml | 1 +
 1 file changed, 1 insertion(+)

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 v2 3/7] 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 v2 4/7] dt-bindings: interrupt-controller: apple,aic2: Add 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 v2 5/7] 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 v2 6/7] dt-bindings: arm: apple: Add A18 Pro based devices

[Yureka Lilian]

The MacBook Neo is the first MacBook to use an A-Series Apple Silicon
SoC. The MacBook Neo is overall similar to the M4 series devices.

The iPhone 16 Pro is based on the same SoC, but Apple does not allow
users running a custom OS on this device.

Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
 Documentation/devicetree/bindings/arm/apple.yaml | 11 +++++++++++
 1 file changed, 11 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:

-- 
2.55.0

[PATCH v2 7/7] 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  |  53 ++
 arch/arm64/boot/dts/apple/t8140-pmgr.dtsi | 777 ++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/apple/t8140.dtsi      | 205 ++++++++
 4 files changed, 1036 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..8e386ae7350c
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/t8140-j700.dts
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple MacBook Neo (A18 Pro, 2026)
+ *
+ * target-type: J700
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+/dts-v1/;
+
+#include "t8140.dtsi"
+
+/ {
+	model = "Apple MacBook Neo (A18 Pro, 2026)";
+	compatible = "apple,j700", "apple,t8140", "apple,arm-platform";
+
+	aliases {
+		serial0 = &serial0;
+	};
+
+	chosen {
+		ranges;
+		#address-cells = <2>;
+		#size-cells = <2>;
+
+		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 */
+	};
+
+	reserved-memory {
+		ranges;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		/* 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..dd43520394ac
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/t8140-pmgr.dtsi
@@ -0,0 +1,777 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * PMGR Power domains for the Apple T8140 "A18 Pro" SoC
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+&pmgr {
+	ps_sep_aon: power-controller@60 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x60 4>;
+		label = "sep_aon";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_msg: power-controller@108 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x108 4>;
+		label = "msg";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_aic: power-controller@110 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x110 4>;
+		label = "aic";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_dwi: power-controller@118 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x118 4>;
+		label = "dwi";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_gpio: power-controller@120 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x120 4>;
+		label = "gpio";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_pmc: power-controller@138 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x138 4>;
+		label = "pmc";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_pms_fpwm0: power-controller@140 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x140 4>;
+		label = "pms_fpwm0";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_pms_fpwm1: power-controller@148 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x148 4>;
+		label = "pms_fpwm1";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_pms_fpwm2: power-controller@150 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x150 4>;
+		label = "pms_fpwm2";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_pms_fpwm3: power-controller@158 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x158 4>;
+		label = "pms_fpwm3";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_pms_fpwm4: power-controller@160 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x160 4>;
+		label = "pms_fpwm4";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_pms_c1ppt: power-controller@168 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x168 4>;
+		label = "pms_c1ppt";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_soc_rc: power-controller@170 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x170 4>;
+		label = "soc_rc";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_soc_dpe: power-controller@178 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x178 4>;
+		label = "soc_dpe";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_pmgr_soc_ocla: power-controller@180 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x180 4>;
+		label = "pmgr_soc_ocla";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_ispsens0: power-controller@188 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x188 4>;
+		label = "ispsens0";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_ispsens1: power-controller@190 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x190 4>;
+		label = "ispsens1";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_ap_tmm: power-controller@1a0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x1a0 4>;
+		label = "ap_tmm";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_afggfxni0: power-controller@1b8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x1b8 4>;
+		label = "afggfxni0";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_gfx: power-controller@1f0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x1f0 4>;
+		label = "gfx";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_jpg: power-controller@230 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x230 4>;
+		label = "jpg";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_msr: power-controller@238 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x238 4>;
+		label = "msr";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_venc0_sys: power-controller@240 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x240 4>;
+		label = "venc0_sys";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_prores: power-controller@250 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x250 4>;
+		label = "prores";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_apcie_gp: power-controller@258 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x258 4>;
+		label = "apcie_gp";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_isp_sys: power-controller@268 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x268 4>;
+		label = "isp_sys";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_ans: power-controller@278 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x278 4>;
+		label = "ans";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_disp_sys: power-controller@280 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x280 4>;
+		label = "disp_sys";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		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>;
+		label = "dispext0_sys";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_ane_sys: power-controller@290 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x290 4>;
+		label = "ane_sys";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_msr_ase_core: power-controller@298 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x298 4>;
+		label = "msr_ase_core";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_msr>;
+		#reset-cells = <0>;
+	};
+
+	ps_apcie_sys_gp: power-controller@2a0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2a0 4>;
+		label = "apcie_sys_gp";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_sio_cpu: power-controller@2a8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2a8 4>;
+		label = "sio_cpu";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_fpwm0: power-controller@2b0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2b0 4>;
+		label = "fpwm0";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_fpwm1: power-controller@2b8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2b8 4>;
+		label = "fpwm1";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_fpwm2: power-controller@2c0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2c0 4>;
+		label = "fpwm2";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_i2c0: power-controller@2c8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2c8 4>;
+		label = "i2c0";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_i2c1: power-controller@2d0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2d0 4>;
+		label = "i2c1";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_i2c2: power-controller@2d8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2d8 4>;
+		label = "i2c2";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_i2c3: power-controller@2e0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2e0 4>;
+		label = "i2c3";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_i2c4: power-controller@2e8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2e8 4>;
+		label = "i2c4";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_spi_p: power-controller@2f0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2f0 4>;
+		label = "spi_p";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_uart_p: power-controller@2f8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x2f8 4>;
+		label = "uart_p";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_dpa_p: power-controller@300 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x300 4>;
+		label = "dpa_p";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_aes: power-controller@308 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x308 4>;
+		label = "aes";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_apcie_st: power-controller@310 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x310 4>;
+		label = "apcie_st";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_ans>;
+		#reset-cells = <0>;
+	};
+
+	ps_disp_fe: power-controller@318 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x318 4>;
+		label = "disp_fe";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_disp_sys>;
+		#reset-cells = <0>;
+		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>;
+		label = "dispext0_fe";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_dispext0_sys>;
+		#reset-cells = <0>;
+	};
+
+	ps_dispext0_cpu: power-controller@328 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x328 4>;
+		label = "dispext0_cpu";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_dispext0_fe>;
+		#reset-cells = <0>;
+
+		status = "disabled"; /* Locked, don't touch it */
+	};
+
+	ps_spi0: power-controller@330 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x330 4>;
+		label = "spi0";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_spi_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_spi1: power-controller@338 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x338 4>;
+		label = "spi1";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_spi_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_spi2: power-controller@340 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x340 4>;
+		label = "spi2";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_spi_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_spi3: power-controller@348 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x348 4>;
+		label = "spi3";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_spi_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_qspi: power-controller@350 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x350 4>;
+		label = "qspi";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_spi_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_uart_n: power-controller@358 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x358 4>;
+		label = "uart_n";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_uart_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_uart0: power-controller@360 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x360 4>;
+		label = "uart0";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_uart_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_uart1: power-controller@368 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x368 4>;
+		label = "uart1";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_uart_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_uart2: power-controller@370 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x370 4>;
+		label = "uart2";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_uart_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_uart3: power-controller@378 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x378 4>;
+		label = "uart3";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_uart_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_uart4: power-controller@380 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x380 4>;
+		label = "uart4";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_uart_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_uart5: power-controller@388 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x388 4>;
+		label = "uart5";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_uart_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_dpa0: power-controller@390 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x390 4>;
+		label = "dpa0";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_dpa_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_dpa1: power-controller@398 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x398 4>;
+		label = "dpa1";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_dpa_p>;
+		#reset-cells = <0>;
+	};
+
+	ps_apcie_sys_st: power-controller@3a0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3a0 4>;
+		label = "apcie_sys_st";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_ans>, <&ps_apcie_st>;
+		#reset-cells = <0>;
+	};
+
+	ps_apcie_phy_sw: power-controller@3c0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3c0 4>;
+		label = "apcie_phy_sw";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_apcie_sys_st>, <&ps_apcie_sys_gp>;
+		#reset-cells = <0>;
+	};
+
+	ps_pmp: power-controller@3d0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3d0 4>;
+		label = "pmp";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_pms_sram: power-controller@3d8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3d8 4>;
+		label = "pms_sram";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_atc0_usb_aon: power-controller@3e0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3e0 4>;
+		label = "atc0_usb_aon";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+	};
+
+	ps_atc0_common: power-controller@3e8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3e8 4>;
+		label = "atc0_common";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_atc0_usb_aon>;
+		#reset-cells = <0>;
+	};
+
+	ps_atc0_usb: power-controller@3f0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x3f0 4>;
+		label = "atc0_usb";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_atc0_common>;
+		#reset-cells = <0>;
+	};
+
+	ps_sep: power-controller@c00 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0xc00 4>;
+		label = "sep";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_venc0_dma: power-controller@8000 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8000 4>;
+		label = "venc0_dma";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_venc0_sys>;
+		#reset-cells = <0>;
+	};
+
+	ps_venc0_pipe4: power-controller@8008 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8008 4>;
+		label = "venc0_pipe4";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_venc0_dma>;
+		#reset-cells = <0>;
+	};
+
+	ps_venc0_pipe5: power-controller@8010 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8010 4>;
+		label = "venc0_pipe5";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_venc0_dma>;
+		#reset-cells = <0>;
+	};
+
+	ps_venc0_me0: power-controller@8018 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8018 4>;
+		label = "venc0_me0";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_venc0_dma>;
+		#reset-cells = <0>;
+	};
+
+	ps_venc0_me1: power-controller@8020 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8020 4>;
+		label = "venc0_me1";
+		#power-domain-cells = <0>;
+		power-domains = <&ps_venc0_me0>;
+		#reset-cells = <0>;
+	};
+};
+
+&pmgr_mini {
+	ps_debug_gated: power-controller@0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x0 4>;
+		label = "debug_gated";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_nub_spmi0: power-controller@58 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x58 4>;
+		label = "nub_spmi0";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_nub_spmi1: power-controller@60 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x60 4>;
+		label = "nub_spmi1";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_nub_spmi_a0: power-controller@68 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x68 4>;
+		label = "nub_spmi_a0";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_nub_aon_nogate: power-controller@78 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x78 4>;
+		label = "nub_aon_nogate";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_nub_ocla: power-controller@80 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x80 4>;
+		label = "nub_ocla";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_nub_gpio: power-controller@88 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x88 4>;
+		label = "nub_gpio";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_nub_fabric: power-controller@a0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0xa0 4>;
+		label = "nub_fabric";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_nub_sram: power-controller@a8 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0xa8 4>;
+		label = "nub_sram";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_debug_switch: power-controller@b0 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0xb0 4>;
+		label = "debug_switch";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_smc_i2cm0: power-controller@8028 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8028 4>;
+		label = "smc_i2cm0";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_smc_i2cm1: power-controller@8030 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8030 4>;
+		label = "smc_i2cm1";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		apple,always-on;
+	};
+
+	ps_smc_i2cm2: power-controller@8038 {
+		compatible = "apple,t8140-pmgr-pwrstate", "apple,t8103-pmgr-pwrstate";
+		reg = <0x8038 4>;
+		label = "smc_i2cm2";
+		#power-domain-cells = <0>;
+		#reset-cells = <0>;
+		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..ee7804dc2301
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/t8140.dtsi
@@ -0,0 +1,205 @@
+// 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>;
+
+	clkref: clock-ref {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+		clock-output-names = "clkref";
+	};
+
+	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 {
+			device_type = "cpu";
+			compatible = "apple,tahiti-e";
+			reg = <0x0 0x0>;
+			cpu-release-addr = <0 0>;
+			d-cache-size = <0x10000>;
+			enable-method = "spin-table";
+			i-cache-size = <0x20000>;
+			next-level-cache = <&l2_cache_0>;
+		};
+
+		cpu_e1: cpu@1 {
+			device_type = "cpu";
+			compatible = "apple,tahiti-e";
+			reg = <0x0 0x1>;
+			cpu-release-addr = <0 0>;
+			d-cache-size = <0x10000>;
+			enable-method = "spin-table";
+			i-cache-size = <0x20000>;
+			next-level-cache = <&l2_cache_0>;
+		};
+
+		cpu_e2: cpu@2 {
+			device_type = "cpu";
+			compatible = "apple,tahiti-e";
+			reg = <0x0 0x2>;
+			cpu-release-addr = <0 0>;
+			d-cache-size = <0x10000>;
+			enable-method = "spin-table";
+			i-cache-size = <0x20000>;
+			next-level-cache = <&l2_cache_0>;
+		};
+
+		cpu_e3: cpu@3 {
+			device_type = "cpu";
+			compatible = "apple,tahiti-e";
+			reg = <0x0 0x3>;
+			cpu-release-addr = <0 0>;
+			d-cache-size = <0x10000>;
+			enable-method = "spin-table";
+			i-cache-size = <0x20000>;
+			next-level-cache = <&l2_cache_0>;
+		};
+
+		cpu_p0: cpu@10100 {
+			device_type = "cpu";
+			compatible = "apple,tahiti-p";
+			reg = <0x0 0x10100>;
+			cpu-release-addr = <0 0>;
+			d-cache-size = <0x20000>;
+			enable-method = "spin-table";
+			i-cache-size = <0x30000>;
+			next-level-cache = <&l2_cache_1>;
+		};
+
+		cpu_p1: cpu@10101 {
+			device_type = "cpu";
+			compatible = "apple,tahiti-p";
+			reg = <0x0 0x10101>;
+			cpu-release-addr = <0 0>;
+			d-cache-size = <0x20000>;
+			enable-method = "spin-table";
+			i-cache-size = <0x30000>;
+			next-level-cache = <&l2_cache_1>;
+		};
+
+		l2_cache_0: l2-cache-0 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-size = <0x400000>;
+			cache-unified;
+		};
+
+		l2_cache_1: l2-cache-1 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-size = <0x1000000>;
+			cache-unified;
+		};
+	};
+
+	soc: soc {
+		compatible = "simple-bus";
+		ranges;
+		#address-cells = <2>;
+		nonposted-mmio;
+		#size-cells = <2>;
+
+		pmgr: power-management@300700000 {
+			compatible = "apple,t8140-pmgr", "apple,t8103-pmgr", "syscon", "simple-mfd";
+			reg = <0x3 0x700000 0 0x14000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			/* child nodes are added in t8140-pmgr.dtsi */
+		};
+
+		aic: interrupt-controller@301000000 {
+			compatible = "apple,t8140-aic3", "apple,t8122-aic3";
+			reg = <0x3 0x01000000 0x0 0x1cc000>,
+			      <0x3 0x01040000 0x0 0x4000>;
+			reg-names = "core", "event";
+			#interrupt-cells = <3>;
+			interrupt-controller;
+			power-domains = <&ps_aic>;
+		};
+
+		pmgr_mini: power-management@308280000 {
+			compatible = "apple,t8140-pmgr", "apple,t8103-pmgr", "syscon", "simple-mfd";
+			reg = <0x3 0x8280000 0 0xc000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			/* 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>;
+			clocks = <&clkref>, <&clkref>;
+			clock-names = "uart", "clk_uart_baud0";
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 1092 IRQ_TYPE_LEVEL_HIGH>;
+			power-domains = <&ps_uart0>;
+			reg-io-width = <4>;
+
+			status = "disabled";
+		};
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&aic>;
+		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>;
+		interrupt-names = "phys", "virt", "hyp-phys", "hyp-virt";
+	};
+};
+
+#include "t8140-pmgr.dtsi"

-- 
2.55.0

Re: [PATCH v2 0/7] Initial Apple Silicon A18 Pro device trees and dt-bindings

[Sven Peter]

On 9/11/26 18:58, Yureka Lilian wrote:
> 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>
> ---

there's a single typo in one commit message, otherwise for the entire 
series:

Reviewed-by: Sven Peter <sven@kernel.org>


Sven

Re: [PATCH v2 4/7] dt-bindings: interrupt-controller: apple,aic2: Add t8140 compatible

[Sven Peter]

On 9/11/26 18:58, Yureka Lilian wrote:
> The Apple t8140 (A18 Pro) SoC uses an AIC3 as interrupt controller, same as
> the M1-M4 SoCs.

AIC3 was introduced with M3, but no need to respin just for this. If I 
end up applying it to the apple-soc tree I'll just fix it then.


Sven