In the change by 
749da5f82fe33ff68dd4aa1a5e35cd9aa6246dab,
The change in the status when the USB device is connected is wrong.
Therefore, the device is not recognized.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
CC: Paul Mundt" <lethal@linux-sh.org>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
 
        else if (speed == LSMODE)
                rh->port |= USB_PORT_STAT_LOW_SPEED;
 
-       rh->port &= USB_PORT_STAT_RESET;
+       rh->port &= ~USB_PORT_STAT_RESET;
        rh->port |= USB_PORT_STAT_ENABLE;
 }