MAC_CONTROL
writel(value, ioaddr + MAC_CONTROL);
u32 value = readl(ioaddr + MAC_CONTROL);
writel(value, ioaddr + MAC_CONTROL);
u32 value = readl(ioaddr + MAC_CONTROL);
writel(value, ioaddr + MAC_CONTROL);
reg_space[MAC_CONTROL / 4] = readl(ioaddr + MAC_CONTROL);
u32 value = readl(ioaddr + MAC_CONTROL);