[PATCH v6 16/20] arm64: dts: apple: Add A9X devices

[Nick Chan <towinchenmi@xxxxxxxxx>]

From: Konrad Dybcio <konradybcio@xxxxxxxxxx>

Add the device tree for the A9X SoC and the devices based on it:

- iPad Pro (9.7 Inch)
- iPad Pro (12.9 Inch) (1st generation)

Signed-off-by: Konrad Dybcio <konradybcio@xxxxxxxxxx>
[Nick: SMP and m1n1 support, uart interrupt and pinctrl fixes]
Co-developed-by: Nick Chan <towinchenmi@xxxxxxxxx>
Signed-off-by: Nick Chan <towinchenmi@xxxxxxxxx>
---
 arch/arm64/boot/dts/apple/Makefile          |   4 +
 arch/arm64/boot/dts/apple/s8001-common.dtsi |  48 +++++++
 arch/arm64/boot/dts/apple/s8001-j127.dts    |  14 +++
 arch/arm64/boot/dts/apple/s8001-j128.dts    |  14 +++
 arch/arm64/boot/dts/apple/s8001-j98a.dts    |  14 +++
 arch/arm64/boot/dts/apple/s8001-j99a.dts    |  14 +++
 arch/arm64/boot/dts/apple/s8001-pro.dtsi    |  44 +++++++
 arch/arm64/boot/dts/apple/s8001.dtsi        | 133 ++++++++++++++++++++
 8 files changed, 285 insertions(+)
 create mode 100644 arch/arm64/boot/dts/apple/s8001-common.dtsi
 create mode 100644 arch/arm64/boot/dts/apple/s8001-j127.dts
 create mode 100644 arch/arm64/boot/dts/apple/s8001-j128.dts
 create mode 100644 arch/arm64/boot/dts/apple/s8001-j98a.dts
 create mode 100644 arch/arm64/boot/dts/apple/s8001-j99a.dts
 create mode 100644 arch/arm64/boot/dts/apple/s8001-pro.dtsi
 create mode 100644 arch/arm64/boot/dts/apple/s8001.dtsi

diff --git a/arch/arm64/boot/dts/apple/Makefile b/arch/arm64/boot/dts/apple/Makefile
index cbb7e409b7e3..f8cd10889d9f 100644
--- a/arch/arm64/boot/dts/apple/Makefile
+++ b/arch/arm64/boot/dts/apple/Makefile
@@ -28,6 +28,10 @@ dtb-$(CONFIG_ARCH_APPLE) += s8003-j72t.dtb
 dtb-$(CONFIG_ARCH_APPLE) += s8003-n66m.dtb
 dtb-$(CONFIG_ARCH_APPLE) += s8003-n69.dtb
 dtb-$(CONFIG_ARCH_APPLE) += s8003-n71m.dtb
+dtb-$(CONFIG_ARCH_APPLE) += s8001-j127.dtb
+dtb-$(CONFIG_ARCH_APPLE) += s8001-j128.dtb
+dtb-$(CONFIG_ARCH_APPLE) += s8001-j98a.dtb
+dtb-$(CONFIG_ARCH_APPLE) += s8001-j99a.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8103-j274.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8103-j293.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8103-j313.dtb
diff --git a/arch/arm64/boot/dts/apple/s8001-common.dtsi b/arch/arm64/boot/dts/apple/s8001-common.dtsi
new file mode 100644
index 000000000000..e94d0e77653a
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/s8001-common.dtsi
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple iPad Pro (9.7-inch), iPad Pro (12.9-inch)
+ *
+ * This file contains parts common to all Apple A9X devices.
+ *
+ * target-type: J127, J128, J98a, J99a
+ *
+ * Copyright (c) 2024, Nick Chan <towinchenmi@xxxxxxxxx>
+ */
+
+/ {
+	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 0 0>; /* To be filled by loader */
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		/* To be filled by loader */
+	};
+};
+
+&serial0 {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/apple/s8001-j127.dts b/arch/arm64/boot/dts/apple/s8001-j127.dts
new file mode 100644
index 000000000000..8b522085cb3e
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/s8001-j127.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple iPad Pro (9.7-inch) (Wi-Fi), J127, iPad6,3 (A1673)
+ * Copyright (c) 2022, Konrad Dybcio <konradybcio@xxxxxxxxxx>
+ */
+
+/dts-v1/;
+
+#include "s8001-pro.dtsi"
+
+/ {
+	compatible = "apple,j127", "apple,s8001", "apple,arm-platform";
+	model = "Apple iPad Pro (9.7-inch) (Wi-Fi)";
+};
diff --git a/arch/arm64/boot/dts/apple/s8001-j128.dts b/arch/arm64/boot/dts/apple/s8001-j128.dts
new file mode 100644
index 000000000000..cdd3d06dcbf1
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/s8001-j128.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple iPad Pro (9.7-inch) (Cellular), J128, iPad6,4 (A1674/A1675)
+ * Copyright (c) 2022, Konrad Dybcio <konradybcio@xxxxxxxxxx>
+ */
+
+/dts-v1/;
+
+#include "s8001-pro.dtsi"
+
+/ {
+	compatible = "apple,j128", "apple,s8001", "apple,arm-platform";
+	model = "Apple iPad Pro (9.7-inch) (Cellular)";
+};
diff --git a/arch/arm64/boot/dts/apple/s8001-j98a.dts b/arch/arm64/boot/dts/apple/s8001-j98a.dts
new file mode 100644
index 000000000000..6d6b841e7ab0
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/s8001-j98a.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple iPad Pro (12.9-inch) (Wi-Fi), J98a, iPad6,7 (A1584)
+ * Copyright (c) 2022, Konrad Dybcio <konradybcio@xxxxxxxxxx>
+ */
+
+/dts-v1/;
+
+#include "s8001-pro.dtsi"
+
+/ {
+	compatible = "apple,j98a", "apple,s8001", "apple,arm-platform";
+	model = "Apple iPad Pro (12.9-inch) (Wi-Fi)";
+};
diff --git a/arch/arm64/boot/dts/apple/s8001-j99a.dts b/arch/arm64/boot/dts/apple/s8001-j99a.dts
new file mode 100644
index 000000000000..d20194b1cae7
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/s8001-j99a.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple iPad Pro (12.9-inch) (Cellular), J99a, iPad6,8 (A1652)
+ * Copyright (c) 2022, Konrad Dybcio <konradybcio@xxxxxxxxxx>
+ */
+
+/dts-v1/;
+
+#include "s8001-pro.dtsi"
+
+/ {
+	compatible = "apple,j99a", "apple,s8001", "apple,arm-platform";
+	model = "Apple iPad Pro (12.9-inch) (Cellular)";
+};
diff --git a/arch/arm64/boot/dts/apple/s8001-pro.dtsi b/arch/arm64/boot/dts/apple/s8001-pro.dtsi
new file mode 100644
index 000000000000..1fce5a7c4200
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/s8001-pro.dtsi
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple iPad Pro (1st generation) common device tree
+ *
+ * Copyright (c) 2022, Konrad Dybcio <konradybcio@xxxxxxxxxx>
+ */
+
+#include "s8001.dtsi"
+#include "s8001-common.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+	chassis-type = "tablet";
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		button-home {
+			label = "Home Button";
+			gpios = <&pinctrl_ap 122 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_HOMEPAGE>;
+			wakeup-source;
+		};
+
+		button-power {
+			label = "Power Button";
+			gpios = <&pinctrl_ap 123 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_POWER>;
+			wakeup-source;
+		};
+
+		button-voldown {
+			label = "Volume Down";
+			gpios = <&pinctrl_ap 15 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEDOWN>;
+		};
+
+		button-volup {
+			label = "Volume Up";
+			gpios = <&pinctrl_ap 12 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_VOLUMEUP>;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/apple/s8001.dtsi b/arch/arm64/boot/dts/apple/s8001.dtsi
new file mode 100644
index 000000000000..23ee3238844d
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/s8001.dtsi
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple S8001 "A9X" SoC
+ *
+ * Other names: H8G, "Elba"
+ *
+ * Copyright (c) 2022, Konrad Dybcio <konradybcio@xxxxxxxxxx>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/apple-aic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pinctrl/apple.h>
+
+/ {
+	interrupt-parent = <&aic>;
+	#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>;
+
+		cpu0: cpu@0 {
+			compatible = "apple,twister";
+			reg = <0x0 0x0>;
+			cpu-release-addr = <0 0>; /* To be filled in by loader */
+			enable-method = "spin-table";
+			device_type = "cpu";
+		};
+
+		cpu1: cpu@1 {
+			compatible = "apple,twister";
+			reg = <0x0 0x1>;
+			cpu-release-addr = <0 0>; /* To be filled in by loader */
+			enable-method = "spin-table";
+			device_type = "cpu";
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		nonposted-mmio;
+		ranges;
+
+		serial0: serial@20a0c0000 {
+			compatible = "apple,s5l-uart";
+			reg = <0x2 0x0a0c0000 0x0 0x4000>;
+			reg-io-width = <4>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 218 IRQ_TYPE_LEVEL_HIGH>;
+			/* Use the bootloader-enabled clocks for now. */
+			clocks = <&clkref>, <&clkref>;
+			clock-names = "uart", "clk_uart_baud0";
+			status = "disabled";
+		};
+
+		aic: interrupt-controller@20e100000 {
+			compatible = "apple,s8000-aic", "apple,aic";
+			reg = <0x2 0x0e100000 0x0 0x100000>;
+			#interrupt-cells = <3>;
+			interrupt-controller;
+		};
+
+		pinctrl_ap: pinctrl@20f100000 {
+			compatible = "apple,s8000-pinctrl", "apple,pinctrl";
+			reg = <0x2 0x0f100000 0x0 0x100000>;
+
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&pinctrl_ap 0 0 219>;
+			apple,npins = <219>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 42 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 43 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 44 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 45 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 46 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 47 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 48 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		pinctrl_aop: pinctrl@2100f0000 {
+			compatible = "apple,s8000-pinctrl", "apple,pinctrl";
+			reg = <0x2 0x100f0000 0x0 0x100000>;
+
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&pinctrl_aop 0 0 28>;
+			apple,npins = <28>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 128 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 129 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 130 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 131 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 132 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 133 IRQ_TYPE_LEVEL_HIGH>,
+				     <AIC_IRQ 134 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		wdt: watchdog@2102b0000 {
+			compatible = "apple,s8000-wdt", "apple,wdt";
+			reg = <0x2 0x102b0000 0x0 0x4000>;
+			clocks = <&clkref>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 4 IRQ_TYPE_LEVEL_HIGH>;
+		};
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupt-parent = <&aic>;
+		interrupt-names = "phys", "virt";
+		/* Note that A9X doesn't actually have a hypervisor (EL2 is not implemented). */
+		interrupts = <AIC_FIQ AIC_TMR_GUEST_PHYS IRQ_TYPE_LEVEL_HIGH>,
+			     <AIC_FIQ AIC_TMR_GUEST_VIRT IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
-- 
2.46.2