+static void ar71xx_mii_ctrl_set_speed(unsigned int reg, unsigned int speed)
+{
+ void __iomem *base;
+ unsigned int mii_speed;
+ u32 t;
+
+ switch (speed) {
+ case SPEED_10:
+ mii_speed = MII_CTRL_SPEED_10;
+ break;
+ case SPEED_100:
+ mii_speed = MII_CTRL_SPEED_100;
+ break;
+ case SPEED_1000:
+ mii_speed = MII_CTRL_SPEED_1000;
+ break;
+ default:
+ BUG();
+ }
+
+ base = ioremap(AR71XX_MII_BASE, AR71XX_MII_SIZE);
+
+ t = __raw_readl(base + reg);
+ t &= ~(MII_CTRL_SPEED_MASK << MII_CTRL_SPEED_SHIFT);
+ t |= mii_speed << MII_CTRL_SPEED_SHIFT;
+ __raw_writel(t, base + reg);
+
+ iounmap(base);
+}
+