s6gmac: xtensa s6000 on-chip ethernet driver

The s6000 on-chip MAC supports 10/100/1000Mbit and is connected to an
external PHY via MII or RGMII interface.

[jw@emlix.com: don't use device->bus_id directly]
Signed-off-by: Oskar Schirmer <os@emlix.com>
Signed-off-by: Daniel Glockner <dg@emlix.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Johannes Weiner <jw@emlix.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Zankel <chris@zankel.net>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 892a9e4..1dc7215 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2443,6 +2443,17 @@
 	  To compile this driver as a module, choose M here. The module
 	  will be called jme.
 
+config S6GMAC
+	tristate "S6105 GMAC ethernet support"
+	depends on XTENSA_VARIANT_S6000
+	select PHYLIB
+	help
+	  This driver supports the on chip ethernet device on the
+	  S6105 xtensa processor.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called s6gmac.
+
 endif # NETDEV_1000
 
 #