net: davinci_emac: separate out davinci mdio

Davinci's MDIO controller is present on other TI devices, without an
accompanying EMAC.  For example, on tnetv107x, the same MDIO module is used in
conjunction with a 3-port switch hardware.

By separating the MDIO controller code into its own platform driver, this
patch allows common logic to be reused on such platforms.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Tested-by: Michael Williamson <michael.williamson@criticallink.com>
Tested-by: Caglar Akyuz <caglarakyuz@gmail.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/davinci_emac.h b/include/linux/davinci_emac.h
index 7c930dba477c..a04fd8c9fbdf 100644
--- a/include/linux/davinci_emac.h
+++ b/include/linux/davinci_emac.h
@@ -14,6 +14,10 @@
 #include <linux/if_ether.h>
 #include <linux/memory.h>
 
+struct mdio_platform_data {
+        unsigned long           bus_freq;
+};
+
 struct emac_platform_data {
         char mac_addr[ETH_ALEN];
         u32 ctrl_reg_offset;