powerpc/85xx: Don't scan for TBI PHY addresses on MPC8569E-MDS boards
authorAnton Vorontsov <cbouatmailru@gmail.com>
Wed, 1 Jul 2009 17:39:25 +0000 (21:39 +0400)
committerKumar Gala <galak@kernel.crashing.org>
Thu, 30 Jul 2009 04:16:39 +0000 (23:16 -0500)
Sometimes (e.g. when there are no UEMs attached to a board)
fsl_pq_mdio_find_free() fails to find a spare address for a TBI PHY,
this is because get_phy_id() returns bogus 0x0000ffff values
(0xffffffff is expected), and therefore mdio bus probing fails with
the following message:

  fsl-pq_mdio: probe of e0082120.mdio failed with error -16

And obviously ethernet doesn't work after this.

This patch solves the problem by adding tbi-phy node into mdio node,
so that we won't scan for spare addresses, we'll just use a fixed one.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
arch/powerpc/boot/dts/mpc8569mds.dts

index a680165..9e4ce99 100644 (file)
                                reg = <0x6>;
                                device_type = "ethernet-phy";
                        };
+                       tbi-phy@11 {
+                               reg = <0x11>;
+                               device_type = "tbi-phy";
+                       };
                };
                mdio@3520 {
                        #address-cells = <1>;