FTGMAC100_OFFSET_ISR
status = ioread32(priv->base + FTGMAC100_OFFSET_ISR);
iowrite32(status, priv->base + FTGMAC100_OFFSET_ISR);
priv->base + FTGMAC100_OFFSET_ISR);
ioread32(priv->base + FTGMAC100_OFFSET_ISR);
reg = ioread32(priv->base + FTGMAC100_OFFSET_ISR);
iowrite32(reg, priv->base + FTGMAC100_OFFSET_ISR);