fsl_pq_mido: Set the first UCC as the mii management interface master

[~andy/linux] / drivers / net / fsl_pq_mdio.c

diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c
index d12e0e0336f45b72b6285c8e7c16ba16802c3472..3af581303ca2b79577d18d0df4d6c64b6d341152 100644 (file)
--- a/drivers/net/fsl_pq_mdio.c
+++ b/drivers/net/fsl_pq_mdio.c
@@ -301,13 +301,17 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
                        of_device_is_compatible(np, "ucc_geth_phy")) {
 #ifdef CONFIG_UCC_GETH
                u32 id;
+               static u32 mii_mng_master;
 
                tbipa = &regs->utbipar;
 
                if ((err = get_ucc_id_for_range(addr, addr + size, &id)))
                        goto err_free_irqs;
 
-               ucc_set_qe_mux_mii_mng(id - 1);
+               if (!mii_mng_master) {
+                       mii_mng_master = id;
+                       ucc_set_qe_mux_mii_mng(id - 1);
+               }
 #else
                err = -ENODEV;
                goto err_free_irqs;