PORTCFG 274 drivers/ata/ahci_xgene.c val = readl(mmio + PORTCFG); PORTCFG 276 drivers/ata/ahci_xgene.c writel(val, mmio + PORTCFG); PORTCFG 277 drivers/ata/ahci_xgene.c readl(mmio + PORTCFG); /* Force a barrier */