SRB_SC
ata_c->r_count = MVSATA_WDC_READ_1(mvport, SRB_SC);
MVSATA_WDC_READ_1(mvport, SRB_SC) << 8;
ire = MVSATA_WDC_READ_1(mvport, SRB_SC);
sig0 = MVSATA_WDC_READ_1(mvport, SRB_SC) << 0;
#define CRQB_ATACOMMAND_SECTORCOUNT CRQB_ATACOMMAND_REG(SRB_SC)