IXP4XX_ICMR
val = __raw_readl(ixi->irqbase + IXP4XX_ICMR);
__raw_writel(val, ixi->irqbase + IXP4XX_ICMR);
__raw_writel(0x0, ixi->irqbase + IXP4XX_ICMR);
val = __raw_readl(ixi->irqbase + IXP4XX_ICMR);
__raw_writel(val, ixi->irqbase + IXP4XX_ICMR);