USB3_P0_CON
u32 val = usb3_read(usb3, USB3_P0_CON);
usb3_write(usb3, val, USB3_P0_CON);
u32 con_reg = usb3_ep->num ? USB3_PN_CON : USB3_P0_CON;
usb3_set_bit(usb3, P0_CON_BCLR, USB3_P0_CON);
return usb3_wait(usb3, USB3_P0_CON, P0_CON_BCLR, 0);