CHP_LBA48_WRITE_REG
CHP_LBA48_WRITE_REG(chp, wdr_lba_hi,
CHP_LBA48_WRITE_REG(chp, wdr_lba_mi,
CHP_LBA48_WRITE_REG(chp, wdr_lba_lo,
CHP_LBA48_WRITE_REG(chp, wdr_seccnt, count);