+/* Allocate an array which provides irq #s for each PHY on the given bus */
+static int *create_irq_map(struct device_node *np)
+{
+ int *irqs;
+ int i;
+ struct device_node *child = NULL;
+
+ irqs = kcalloc(PHY_MAX_ADDR, sizeof(int), GFP_KERNEL);
+
+ if (!irqs)
+ return NULL;
+
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ irqs[i] = PHY_POLL;
+
+ while ((child = of_get_next_child(np, child)) != NULL) {
+ int irq = irq_of_parse_and_map(child, 0);
+ const u32 *id;
+
+ if (irq == NO_IRQ)
+ continue;
+
+ id = of_get_property(child, "reg", NULL);
+
+ if (!id)
+ continue;
+
+ if (*id < PHY_MAX_ADDR && *id >= 0)
+ irqs[*id] = irq;
+ else
+ printk(KERN_WARNING "%s: "
+ "%d is not a valid PHY address\n",
+ np->full_name, *id);
+ }
+
+ return irqs;
+}
+
+
+void gfar_mdio_bus_name(char *name, struct device_node *np)
+{
+ const u32 *reg;
+
+ reg = of_get_property(np, "reg", NULL);
+
+ snprintf(name, MII_BUS_ID_SIZE, "%s@%x", np->name, reg ? *reg : 0);
+}
+
+/* Scan the bus in reverse, looking for an empty spot */
+static int gfar_mdio_find_free(struct mii_bus *new_bus)
+{
+ int i;
+
+ for (i = PHY_MAX_ADDR; i > 0; i--) {
+ u32 phy_id;
+
+ if (get_phy_id(new_bus, i, &phy_id))
+ return -1;
+
+ if (phy_id == 0xffffffff)
+ break;
+ }