GMAC_ADDR_LOW
GMAC_ADDR_LOW(reg_n));
GMAC_ADDR_LOW(reg_n));
GMAC_ADDR_LOW(reg));
writel(0, ioaddr + GMAC_ADDR_LOW(reg));
GMAC_ADDR_LOW(reg_n));
GMAC_ADDR_LOW(reg_n));
writel(0, ioaddr + GMAC_ADDR_LOW(reg));