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arm64: dts: imx8mm-var-som-symphony: Move USB configuration from SOM

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Move the USB controller configuration out of the i.MX8MM VAR-SOM dtsi
and into the VAR-SOM Symphony carrier board dts.

The SOM does not provide any USB connectors and carrier boards may
choose whether and how to route USB, therefore USB should be described
in the carrier-specific device tree instead of the SOM include.

While moving the nodes, align the Symphony USB description with the
carrier design by enabling both USB controllers, wiring USB1 to the
PTN5150 Type-C controller for dual-role operation, and updating the
PHY tuning and VBUS regulator pinctrl (including a sleep state).

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Stefano Radaelli 2026-03-19 19:40:27 +01:00 committed by Frank Li
parent 8e7ce17e6d
commit 4e9088abea
2 changed files with 32 additions and 28 deletions
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48
arch/arm64/boot/dts/freescale/imx8mm-var-som-symphony.dts
View File

@ -32,6 +32,7 @@ reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_usb_otg2_vbus>;
pinctrl-1 = <&pinctrl_reg_usb_otg2_vbus_sleep>;
regulator-name = "usb_otg2_vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
@ -133,13 +134,20 @@ enet-sel-hog {
};
};
extcon_usbotg1: typec@3d {
/* USB Type-C Controller */
ptn5150: typec@3d {
compatible = "nxp,ptn5150";
reg = <0x3d>;
interrupt-parent = <&gpio1>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ptn5150>;
port {
typec1_dr_sw: endpoint {
remote-endpoint = <&usb1_drd_sw>;
};
};
};
};
@ -187,27 +195,29 @@ &uart4 {
};
&usbotg1 {
disable-over-current;
extcon = <&extcon_usbotg1>, <&extcon_usbotg1>;
dr_mode = "otg";
hnp-disable;
srp-disable;
adp-disable;
usb-role-switch;
samsung,picophy-pre-emp-curr-control = <3>;
samsung,picophy-dc-vol-level-adjust = <7>;
status = "okay";
port {
usb1_drd_sw: endpoint {
remote-endpoint = <&typec1_dr_sw>;
};
};
};
&usbotg2 {
dr_mode = "host";
vbus-supply = <&reg_usb_otg2_vbus>;
srp-disable;
hnp-disable;
adp-disable;
samsung,picophy-pre-emp-curr-control = <3>;
samsung,picophy-dc-vol-level-adjust = <7>;
disable-over-current;
/delete-property/ usb-role-switch;
/*
* FIXME: having USB2 enabled hangs the boot just after:
* [ 1.943365] ci_hdrc ci_hdrc.1: EHCI Host Controller
* [ 1.948287] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
* [ 1.971006] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
* [ 1.977203] hub 1-0:1.0: USB hub found
* [ 1.980987] hub 1-0:1.0: 1 port detected
*/
status = "disabled";
status = "okay";
};
&pinctrl_fec1 {
@ -262,6 +272,12 @@ MX8MM_IOMUXC_SAI3_TXD_GPIO5_IO1 0x16
>;
};
pinctrl_reg_usb_otg2_vbus_sleep: regusbotg2vbus-sleepgrp {
fsl,pins = <
MX8MM_IOMUXC_SAI3_TXD_GPIO5_IO1 0x120
>;
};
pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
fsl,pins = <
MX8MM_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x41

12
arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
View File

@ -378,18 +378,6 @@ &uart2 {
status = "okay";
};
&usbotg1 {
dr_mode = "otg";
usb-role-switch;
status = "okay";
};
&usbotg2 {
dr_mode = "otg";
usb-role-switch;
status = "okay";
};
&usdhc1 {
#address-cells = <1>;
#size-cells = <0>;