writel(val, (void *) ap->ioaddr.scr_addr + (sc_reg * 4));
writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
static void vsc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,			       u32 val){	if (sc_reg > SCR_CONTROL)		return;	writel(val, (void *) ap->ioaddr.scr_addr + (sc_reg * 4));}