MIPS: Octeon: Add platform device for MDIO buses.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c
index be711dd..febfdd7 100644 (file)
--- a/arch/mips/cavium-octeon/octeon-platform.c
+++ b/arch/mips/cavium-octeon/octeon-platform.c
@@ -159,6 +159,36 @@ out:
 }
 device_initcall(octeon_rng_device_init);
 
+/* Octeon SMI/MDIO interface.  */
+static int __init octeon_mdiobus_device_init(void)
+{
+       struct platform_device *pd;
+       int ret = 0;
+
+       if (octeon_is_simulation())
+               return 0; /* No mdio in the simulator. */
+
+       /* The bus number is the platform_device id.  */
+       pd = platform_device_alloc("mdio-octeon", 0);
+       if (!pd) {
+               ret = -ENOMEM;
+               goto out;
+       }
+
+       ret = platform_device_add(pd);
+       if (ret)
+               goto fail;
+
+       return ret;
+fail:
+       platform_device_put(pd);
+
+out:
+       return ret;
+
+}
+device_initcall(octeon_mdiobus_device_init);
+
 MODULE_AUTHOR("David Daney <ddaney@caviumnetworks.com>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Platform driver for Octeon SOC");