ibm_newemac: Cleanup/Fix RGMII MDIO support detection

More than just "AXON" version of EMAC RGMII supports MDIO, so replace
the current test with a generic property in the device-tree that
indicates such support.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/net/ibm_newemac/rgmii.h b/drivers/net/ibm_newemac/rgmii.h
index 57806833121e..44a0f201064d 100644
--- a/drivers/net/ibm_newemac/rgmii.h
+++ b/drivers/net/ibm_newemac/rgmii.h
@@ -35,8 +35,9 @@ struct rgmii_regs {
 struct rgmii_instance {
         struct rgmii_regs __iomem       *base;
 
-        /* Type of RGMII bridge */
-        int                             type;
+        /* RGMII bridge flags */
+        int                             flags;
+#define EMAC_RGMII_FLAG_HAS_MDIO        0x00000001
 
         /* Only one EMAC whacks us at a time */
         struct mutex                    lock;