Probe the new mdio node added by b31a1d8b.  Fix kernel panic problem when
gianfar driver wants to get the of_platform_device of that mdio.

Signed-off-by: Li Yang <le...@freescale.com>
---
Supersede the patch to add "simple-bus" to gianfar node to fix this problem.

 arch/powerpc/boot/dts/mpc8313erdb.dts     |    2 +-
 arch/powerpc/platforms/83xx/mpc831x_rdb.c |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/boot/dts/mpc8313erdb.dts 
b/arch/powerpc/boot/dts/mpc8313erdb.dts
index a2125f4..d532f99 100644
--- a/arch/powerpc/boot/dts/mpc8313erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8313erdb.dts
@@ -185,7 +185,7 @@
                        cell-index = <0>;
                        device_type = "network";
                        model = "eTSEC";
-                       compatible = "gianfar", "simple-bus";
+                       compatible = "gianfar";
                        reg = <0x24000 0x1000>;
                        local-mac-address = [ 00 00 00 00 00 00 ];
                        interrupts = <37 0x8 36 0x8 35 0x8>;
diff --git a/arch/powerpc/platforms/83xx/mpc831x_rdb.c 
b/arch/powerpc/platforms/83xx/mpc831x_rdb.c
index a428f8d..20e3d1e 100644
--- a/arch/powerpc/platforms/83xx/mpc831x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc831x_rdb.c
@@ -71,6 +71,7 @@ static int __init mpc831x_rdb_probe(void)
 
 static struct of_device_id __initdata of_bus_ids[] = {
        { .compatible = "simple-bus" },
+       { .compatible = "gianfar" },
        {},
 };
 
-- 
1.5.5.1.248.g4b17

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