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

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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>
This commit is contained in:
Anton Vorontsov 2009-07-01 21:39:25 +04:00 committed by Kumar Gala
parent c4673f9a32
commit 8a0b177f36
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/boot/dts/mpc8569mds.dts
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@ -501,6 +501,10 @@
reg = <0x6>;
device_type = "ethernet-phy";
};
tbi-phy@11 {
reg = <0x11>;
device_type = "tbi-phy";
};
};
mdio@3520 {
#address-cells = <1>;