XGMAC_ADDRx_HIGH
writel(value | XGMAC_AE, ioaddr + XGMAC_ADDRx_HIGH(reg_n));
hi_addr = readl(ioaddr + XGMAC_ADDRx_HIGH(reg_n));
writel(0, ioaddr + XGMAC_ADDRx_HIGH(reg));