Allwinner A13 (sun5i ) usb problem

hi everyone
i'm having a problem with all winner sun5i A13 tablet using openwrt 19.07.0-rc2 , basically all I wanna do is enable the otg port in host mode, neither uboot nor openwrt detect the port, tried fiddling with dtb file with no luck , I dont even see the driver for musb being loaded in kernel boot log and checking the kernel config file I cant see CONFIG_USB_MUSB_SUNXI enabled , is the driver not included in the openwrt kernel?
another problem is that internal usb port is tied to rtl8188eu wifi nic, the kernel detects it but no driver is available, I tried rtl8xxxu and it didnt detect it.
any help is appreciated, thanks