SUNXI_MUSB_INTRRX
musb->int_rx = readw(musb->mregs + SUNXI_MUSB_INTRRX);
writew(musb->int_rx, musb->mregs + SUNXI_MUSB_INTRRX);
return readw(addr + SUNXI_MUSB_INTRRX);
return writew(data, addr + SUNXI_MUSB_INTRRX);