PDC_CTLSTAT
void __iomem *ata_ctlstat_mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT;
tmp = readb(ata_mmio + PDC_CTLSTAT + 3);
tmp = readl(ata_mmio + PDC_CTLSTAT);
writel(tmp, ata_mmio + PDC_CTLSTAT);
readl(ata_mmio + PDC_CTLSTAT); /* flush */
tmp = readl(ata_mmio + PDC_CTLSTAT);
writel(tmp, ata_mmio + PDC_CTLSTAT);
readl(ata_mmio + PDC_CTLSTAT); /* flush */
tmp = readl(mmio + PDC_CTLSTAT);
writel(tmp, mmio + PDC_CTLSTAT);
readl(mmio + PDC_CTLSTAT); /* flush */
tmp = readl(mmio + PDC_CTLSTAT);
writel(tmp, mmio + PDC_CTLSTAT);
readl(mmio + PDC_CTLSTAT); /* flush */
void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT;