CD18xx_GSVR
cd18xx_write(sc, CD18xx_GSVR, CD18xx_GSVR_CLEAR);
while (--i && cd18xx_read(sc, CD18xx_GSVR) == CD18xx_GSVR_READY)
cd18xx_write(sc, CD18xx_GSVR, CD18xx_GSVR_SETID(sc));
cd18xx_read(sc, CD18xx_GSVR),