net: OpenFirmware GPIO based MDIO bitbang driver

This patch adds an MDIO bitbang driver that uses the GPIO library and its
OF bindings to access the bus I/Os.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 284217c12839..d55932acd887 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -84,4 +84,10 @@ config MDIO_BITBANG
 
           If in doubt, say N.
 
+config MDIO_OF_GPIO
+        tristate "Support for GPIO lib-based bitbanged MDIO buses"
+        depends on MDIO_BITBANG && OF_GPIO
+        ---help---
+          Supports GPIO lib-based MDIO busses.
+
 endif # PHYLIB