GLOBAL_INTERRUPT_STATUS_4_REG
reg[4] = readl(geth->base + GLOBAL_INTERRUPT_STATUS_4_REG);
geth->base + GLOBAL_INTERRUPT_STATUS_4_REG);
geth->base + GLOBAL_INTERRUPT_STATUS_4_REG);
writel(irqmask, geth->base + GLOBAL_INTERRUPT_STATUS_4_REG);
val = readl(geth->base + GLOBAL_INTERRUPT_STATUS_4_REG);
writel(~0, geth->base + GLOBAL_INTERRUPT_STATUS_4_REG);