powerpc/fsl_soc: gianfar: don't probe disabled devices

Freescale ships MPC8315E-RDB boards in two variants:

1. With TSEC1 ethernet support and USB UTMI PHY;
2. Without TSEC1 support, but with USB ULPI PHY in addition.

For the second case U-Boot will add status = "disabled"; property
into the TSEC1 node, so Linux should not try to probe it.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index ebcec7362f95..ca180a93bca1 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -296,6 +296,9 @@ static int __init gfar_of_init(void)
                 const phandle *ph;
                 int n_res = 2;
 
+                if (!of_device_is_available(np))
+                        continue;
+
                 memset(r, 0, sizeof(r));
                 memset(&gfar_data, 0, sizeof(gfar_data));