[openwrt/openwrt] airoha: an7581: enable USB node on eMMC RFB board

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/6d51c80424b93b6aebacf4c47ad74597e450c8bd

commit 6d51c80424b93b6aebacf4c47ad74597e450c8bd
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Tue Oct 28 13:19:24 2025 +0100

    airoha: an7581: enable USB node on eMMC RFB board
    
    Enable USB node on eMMC RFB board and disable USB2 3.0 port to make the
    3rd PCIe line correctly work.
    
    This is needed to prevent the xHCI driver to mess with PCIe by
    configuring the USB2 3.0 port. Port will still be detected but won't be
    configureed by the driver and won't have PHY to configure for.
    
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
 target/linux/airoha/dts/an7581-evb-emmc.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/target/linux/airoha/dts/an7581-evb-emmc.dts b/target/linux/airoha/dts/an7581-evb-emmc.dts
index b814834c28..25d9b87af0 100644
--- a/target/linux/airoha/dts/an7581-evb-emmc.dts
+++ b/target/linux/airoha/dts/an7581-evb-emmc.dts
@@ -106,6 +106,17 @@
 	};
 };
 
+&usb0 {
+	status = "okay";
+};
+
+&usb1 {
+	status = "okay";
+
+	mediatek,u3p-dis-msk = <0x1>;
+	phys = <&usb1_phy PHY_TYPE_USB2>;
+};
+
 &mmc0 {
 	pinctrl-names = "default", "state_uhs";
 	pinctrl-0 = <&mmc_pins>;