[PATCH 1/3] arm64: dts: apple: t8103: Add nodes for integrated USB Type-C ports
From: Janne Grunau <j@jannau.net>
Date: 2026-01-09 14:07:20
Also in:
asahi, linux-devicetree, lkml
Subsystem:
arm/apple machine support, the rest · Maintainers:
Sven Peter, Janne Grunau, Linus Torvalds
From: Hector Martin <redacted> Add device nodes and connections to support USB 3.x on the SoC's integrated USB-C ports of M1-based devices. Each Type-C port has an Apple Type-C PHY for USB 2.0, USB 3.x, USB4/Thunderbolt, and DisplayPort, a Synopsys Designware USB 3.x controller, two DART iommu instances and a CD321x USB PD controller. The iMac variant with four USB-C ports has two SoC integrated USB-C ports and two additional USB-C ports driven by an AsMedia PCIe USB controller. The latter ports are not covered by this change. The port labels use Apple's established naming scheme for the ports. Signed-off-by: Hector Martin <redacted> Co-developed-by: Sven Peter <sven@kernel.org> Signed-off-by: Sven Peter <sven@kernel.org> Signed-off-by: Janne Grunau <j@jannau.net> --- arch/arm64/boot/dts/apple/t8103-j274.dts | 12 +++ arch/arm64/boot/dts/apple/t8103-j293.dts | 12 +++ arch/arm64/boot/dts/apple/t8103-j313.dts | 12 +++ arch/arm64/boot/dts/apple/t8103-j456.dts | 12 +++ arch/arm64/boot/dts/apple/t8103-j457.dts | 12 +++ arch/arm64/boot/dts/apple/t8103-jxxx.dtsi | 134 ++++++++++++++++++++++++++++++ arch/arm64/boot/dts/apple/t8103.dtsi | 105 +++++++++++++++++++++++ 7 files changed, 299 insertions(+)
diff --git a/arch/arm64/boot/dts/apple/t8103-j274.dts b/arch/arm64/boot/dts/apple/t8103-j274.dts
index 1c3e37f86d46d7b5d733717b47c4b57dc55e1201..968fe22163d4431fe5e7049854687e61e0ec50f1 100644
--- a/arch/arm64/boot/dts/apple/t8103-j274.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j274.dts@@ -29,6 +29,18 @@ &wifi0 { brcm,board-type = "apple,atlantisb"; }; +/* + * Provide labels for the USB type C ports. + */ + +&typec0 { + label = "USB-C Back-left"; +}; + +&typec1 { + label = "USB-C Back-right"; +}; + /* * Force the bus number assignments so that we can declare some of the * on-board devices and properties that are populated by the bootloader
diff --git a/arch/arm64/boot/dts/apple/t8103-j293.dts b/arch/arm64/boot/dts/apple/t8103-j293.dts
index 5b3c42e9f0e6776241bf746d3458766e44e3639a..678f89c3d47fbf2d0705b46bb8feba3fa018ca7a 100644
--- a/arch/arm64/boot/dts/apple/t8103-j293.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j293.dts@@ -46,6 +46,18 @@ &wifi0 { brcm,board-type = "apple,honshu"; }; +/* + * Provide labels for the USB type C ports. + */ + +&typec0 { + label = "USB-C Left-back"; +}; + +&typec1 { + label = "USB-C Left-front"; +}; + &i2c2 { status = "okay"; };
diff --git a/arch/arm64/boot/dts/apple/t8103-j313.dts b/arch/arm64/boot/dts/apple/t8103-j313.dts
index 97a4344d8dca685708aff136af92a1b316f3c3dd..bce9b911009e2b0caa9d8b2222cd1e8c3215f3b9 100644
--- a/arch/arm64/boot/dts/apple/t8103-j313.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j313.dts@@ -41,3 +41,15 @@ &wifi0 { &fpwm1 { status = "okay"; }; + +/* + * Provide labels for the USB type C ports. + */ + +&typec0 { + label = "USB-C Left-back"; +}; + +&typec1 { + label = "USB-C Left-front"; +};
diff --git a/arch/arm64/boot/dts/apple/t8103-j456.dts b/arch/arm64/boot/dts/apple/t8103-j456.dts
index 58c8e43789b4861544e20c717124ede3327be010..9983e11cacdf19d0a92ede108ceac21b7a02d5da 100644
--- a/arch/arm64/boot/dts/apple/t8103-j456.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j456.dts@@ -47,6 +47,18 @@ hpm3: usb-pd@3c { }; }; +/* + * Provide labels for the USB type C ports. + */ + +&typec0 { + label = "USB-C Back-right"; +}; + +&typec1 { + label = "USB-C Back-right-middle"; +}; + /* * Force the bus number assignments so that we can declare some of the * on-board devices and properties that are populated by the bootloader
diff --git a/arch/arm64/boot/dts/apple/t8103-j457.dts b/arch/arm64/boot/dts/apple/t8103-j457.dts
index 7089ccf3ce55661f3f83810496daed40c8199189..6703f4a3d3db4c51a4897b77948eba13489b1e43 100644
--- a/arch/arm64/boot/dts/apple/t8103-j457.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j457.dts@@ -37,6 +37,18 @@ &wifi0 { brcm,board-type = "apple,santorini"; }; +/* + * Provide labels for the USB type C ports. + */ + +&typec0 { + label = "USB-C Back-right"; +}; + +&typec1 { + label = "USB-C Back-left"; +}; + /* * Force the bus number assignments so that we can declare some of the * on-board devices and properties that are populated by the bootloader
diff --git a/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi b/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi
index 0c8206156bfefda8a32c869787b2e0c8e67a9d17..686fb1dd215d2d11e736826a254e17b6eab27c3e 100644
--- a/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi@@ -15,6 +15,8 @@ aliases { serial0 = &serial0; serial2 = &serial2; wifi0 = &wifi0; + atcphy0 = &atcphy0; + atcphy1 = &atcphy1; }; chosen {
@@ -53,6 +55,29 @@ hpm0: usb-pd@38 { interrupt-parent = <&pinctrl_ap>; interrupts = <106 IRQ_TYPE_LEVEL_LOW>; interrupt-names = "irq"; + + typec0: connector { + compatible = "usb-c-connector"; + power-role = "dual"; + data-role = "dual"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + typec0_connector_hs: endpoint { + remote-endpoint = <&dwc3_0_hs>; + }; + }; + port@1 { + reg = <1>; + typec0_connector_ss: endpoint { + remote-endpoint = <&atcphy0_typec_lanes>; + }; + }; + }; + }; }; hpm1: usb-pd@3f {
@@ -61,6 +86,115 @@ hpm1: usb-pd@3f { interrupt-parent = <&pinctrl_ap>; interrupts = <106 IRQ_TYPE_LEVEL_LOW>; interrupt-names = "irq"; + + typec1: connector { + compatible = "usb-c-connector"; + power-role = "dual"; + data-role = "dual"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + port@0 { + reg = <0>; + typec1_connector_hs: endpoint { + remote-endpoint = <&dwc3_1_hs>; + }; + }; + port@1 { + reg = <1>; + typec1_connector_ss: endpoint { + remote-endpoint = <&atcphy1_typec_lanes>; + }; + }; + }; + }; + }; +}; + +/* USB controllers */ +&dwc3_0 { + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dwc3_0_hs: endpoint { + remote-endpoint = <&typec0_connector_hs>; + }; + }; + + port@1 { + reg = <1>; + dwc3_0_ss: endpoint { + remote-endpoint = <&atcphy0_usb3>; + }; + }; + }; +}; + +&dwc3_1 { + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dwc3_1_hs: endpoint { + remote-endpoint = <&typec1_connector_hs>; + }; + }; + + port@1 { + reg = <1>; + dwc3_1_ss: endpoint { + remote-endpoint = <&atcphy1_usb3>; + }; + }; + }; +}; + +/* Type-C PHYs */ +&atcphy0 { + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + atcphy0_typec_lanes: endpoint { + remote-endpoint = <&typec0_connector_ss>; + }; + }; + + port@1 { + reg = <1>; + atcphy0_usb3: endpoint { + remote-endpoint = <&dwc3_0_ss>; + }; + }; + }; +}; + +&atcphy1 { + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + atcphy1_typec_lanes: endpoint { + remote-endpoint = <&typec1_connector_ss>; + }; + }; + + port@1 { + reg = <1>; + atcphy1_usb3: endpoint { + remote-endpoint = <&dwc3_1_ss>; + }; + }; }; };
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index 8b7b27887968741b745651e5133dffa7d8d20f6d..c48b10ac65efcc9c5211c3cdb0a5be63bf60a859 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi@@ -12,6 +12,7 @@ #include <dt-bindings/interrupt-controller/irq.h> #include <dt-bindings/pinctrl/apple.h> #include <dt-bindings/spmi/spmi.h> +#include <dt-bindings/phy/phy.h> / { compatible = "apple,t8103", "apple,arm-platform";
@@ -1007,6 +1008,110 @@ nvme@27bcc0000 { resets = <&ps_ans2>; }; + dwc3_0: usb@382280000 { + compatible = "apple,t8103-dwc3"; + reg = <0x3 0x82280000 0x0 0xcd00>, <0x3 0x8228cd00 0x0 0x3200>; + reg-names = "dwc3-core", "dwc3-apple"; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 777 IRQ_TYPE_LEVEL_HIGH>; + dr_mode = "otg"; + usb-role-switch; + role-switch-default-mode = "host"; + iommus = <&dwc3_0_dart_0 0>, <&dwc3_0_dart_1 1>; + power-domains = <&ps_atc0_usb>; + resets = <&atcphy0>; + phys = <&atcphy0 PHY_TYPE_USB2>, <&atcphy0 PHY_TYPE_USB3>; + phy-names = "usb2-phy", "usb3-phy"; + }; + + dwc3_0_dart_0: iommu@382f00000 { + compatible = "apple,t8103-dart"; + reg = <0x3 0x82f00000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 781 IRQ_TYPE_LEVEL_HIGH>; + #iommu-cells = <1>; + power-domains = <&ps_atc0_usb>; + }; + + dwc3_0_dart_1: iommu@382f80000 { + compatible = "apple,t8103-dart"; + reg = <0x3 0x82f80000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 781 IRQ_TYPE_LEVEL_HIGH>; + #iommu-cells = <1>; + power-domains = <&ps_atc0_usb>; + }; + + atcphy0: phy@383000000 { + compatible = "apple,t8103-atcphy"; + reg = <0x3 0x83000000 0x0 0x4c000>, + <0x3 0x83050000 0x0 0x8000>, + <0x3 0x80000000 0x0 0x4000>, + <0x3 0x82a90000 0x0 0x4000>, + <0x3 0x82a84000 0x0 0x4000>; + reg-names = "core", "lpdptx", "axi2af", "usb2phy", + "pipehandler"; + + #phy-cells = <1>; + #reset-cells = <0>; + + orientation-switch; + mode-switch; + power-domains = <&ps_atc0_usb>; + }; + + dwc3_1: usb@502280000 { + compatible = "apple,t8103-dwc3"; + reg = <0x5 0x02280000 0x0 0xcd00>, <0x5 0x0228cd00 0x0 0x3200>; + reg-names = "dwc3-core", "dwc3-apple"; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 857 IRQ_TYPE_LEVEL_HIGH>; + dr_mode = "otg"; + usb-role-switch; + role-switch-default-mode = "host"; + iommus = <&dwc3_1_dart_0 0>, <&dwc3_1_dart_1 1>; + power-domains = <&ps_atc1_usb>; + resets = <&atcphy1>; + phys = <&atcphy1 PHY_TYPE_USB2>, <&atcphy1 PHY_TYPE_USB3>; + phy-names = "usb2-phy", "usb3-phy"; + }; + + dwc3_1_dart_0: iommu@502f00000 { + compatible = "apple,t8103-dart"; + reg = <0x5 0x02f00000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 861 IRQ_TYPE_LEVEL_HIGH>; + #iommu-cells = <1>; + power-domains = <&ps_atc1_usb>; + }; + + dwc3_1_dart_1: iommu@502f80000 { + compatible = "apple,t8103-dart"; + reg = <0x5 0x02f80000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 861 IRQ_TYPE_LEVEL_HIGH>; + #iommu-cells = <1>; + power-domains = <&ps_atc1_usb>; + }; + + atcphy1: phy@503000000 { + compatible = "apple,t8103-atcphy"; + reg = <0x5 0x03000000 0x0 0x4c000>, + <0x5 0x03050000 0x0 0x8000>, + <0x5 0x0 0x0 0x4000>, + <0x5 0x02a90000 0x0 0x4000>, + <0x5 0x02a84000 0x0 0x4000>; + reg-names = "core", "lpdptx", "axi2af", "usb2phy", + "pipehandler"; + + #phy-cells = <1>; + #reset-cells = <0>; + + orientation-switch; + mode-switch; + power-domains = <&ps_atc1_usb>; + }; + pcie0_dart_0: iommu@681008000 { compatible = "apple,t8103-dart"; reg = <0x6 0x81008000 0x0 0x4000>;
--
2.52.0