MUSB_ULPI_REG_CONTROL
musb_writeb(addr, MUSB_ULPI_REG_CONTROL,
while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL)
r = musb_readb(addr, MUSB_ULPI_REG_CONTROL);
musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r);
musb_writeb(addr, MUSB_ULPI_REG_CONTROL, MUSB_ULPI_REG_REQ);
while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL)
r = musb_readb(addr, MUSB_ULPI_REG_CONTROL);
musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r);