iwb_readl_relaxed
wtmr = iwb_readl_relaxed(iwb_node, GICV5_IWB_WTMR + (4 * n));
idr0 = iwb_readl_relaxed(iwb_node, GICV5_IWB_IDR0);
cr0 = iwb_readl_relaxed(iwb_node, GICV5_IWB_CR0);
val = iwb_readl_relaxed(iwb_node, GICV5_IWB_WENABLER + (4 * n));