LINIER
ier = readl(port->membase + LINIER);
writel(ier, port->membase + LINIER);
ier = readl(port->membase + LINIER);
writel(ier & ~LINFLEXD_LINIER_DRIE, port->membase + LINIER);
ier = readl(port->membase + LINIER);
writel(ier | LINFLEXD_LINIER_DTIE, port->membase + LINIER);
ier = readl(sport->membase + LINIER);
writel(ier, sport->membase + LINIER);
ier = readl(sport->membase + LINIER);
writel(ier, sport->membase + LINIER);
ier = readl(port->membase + LINIER);
writel(ier, port->membase + LINIER);
ier = readl(sport->membase + LINIER);
writel(ier, sport->membase + LINIER);