GLB_IRQ_ENA
val = readl(priv->glb_base + GLB_IRQ_ENA);
writel(val | irqs, priv->glb_base + GLB_IRQ_ENA);
val = readl(priv->glb_base + GLB_IRQ_ENA);
writel(val & (~irqs), priv->glb_base + GLB_IRQ_ENA);