OTG_INTERFSEL
l = musb_readl(musb->mregs, OTG_INTERFSEL);
musb_writel(musb->mregs, OTG_INTERFSEL, l);
musb_readl(musb->mregs, OTG_INTERFSEL),
OTG_INTERFSEL);
musb_writel(musb->mregs, OTG_INTERFSEL,