Commit 8a0b177f authored Jul 01, 2009 by Anton Vorontsov Committed by Kumar Gala Jul 29, 2009

powerpc/85xx: Don't scan for TBI PHY addresses on MPC8569E-MDS boards



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>

parent c4673f9a

arch/powerpc/boot/dts/mpc8569mds.dts

+4 −0

Original line number	Diff line number	Diff line
		@@ -501,6 +501,10 @@
		reg = <0x6>;
		device_type = "ethernet-phy";
		};
		tbi-phy@11 {
		reg = <0x11>;
		device_type = "tbi-phy";
		};
		};
		mdio@3520 {
		#address-cells = <1>;