net: davinci_emac: switch to new mdio

This patch switches the emac implementation over to the newly separated
MDIO driver.

With this, the mdio bus frequency defaults to a safe 2.2MHz.  Boards may
optionally specify a bus frequency via platform data.

The phy identification scheme has been modified to use a phy bus id instead
of a mask.  This largely serves to eliminate the "phy search" code in emac
init.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Acked-by: David S. Miller <davem@davemloft.net>
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, 9 insertions, 0 deletions

diff --git a/include/linux/davinci_emac.h b/include/linux/davinci_emac.h
index a04fd8c9fbdf..46a759f0c082 100644
--- a/include/linux/davinci_emac.h
+++ b/include/linux/davinci_emac.h
@@ -28,6 +28,15 @@ struct emac_platform_data {
         u32 ctrl_ram_size;
         u32 phy_mask;
         u32 mdio_max_freq;
+
+        /*
+         * phy_id can be one of the following:
+         *   - NULL             : use the first phy on the bus,
+         *   - ""               : force to 100/full, no mdio control
+         *   - "<bus>:<addr>"   : use the specified bus and phy
+         */
+        const char *phy_id;
+
         u8 rmii_en;
         u8 version;
         void (*interrupt_enable) (void);