MUSB_RXFIFOADD
musb_writew(mbase, MUSB_RXFIFOADD, c_off);
musb_writew(mbase, MUSB_RXFIFOADD, c_off);
musb_readw(musb_base, MUSB_RXFIFOADD);
musb_writew(musb_base, MUSB_RXFIFOADD,
{ "RxFIFOadd", MUSB_RXFIFOADD, 16 },
case MUSB_RXFIFOADD:
case MUSB_RXFIFOADD: