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: NOskar Schirmer <os@emlix.com>
Signed-off-by: NDaniel Glockner <dg@emlix.com>
Acked-by: N"David S. Miller" <davem@davemloft.net>
Signed-off-by: NJohannes Weiner <jw@emlix.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NChris Zankel <chris@zankel.net>

drivers/net/Kconfig

@@ -2443,6 +2443,17 @@ config JME
 	  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
 
 #

drivers/net/Makefile

@@ -245,6 +245,7 @@ obj-$(CONFIG_XTENSA_XT2000_SONIC) += xtsonic.o
 
 obj-$(CONFIG_DNET) += dnet.o
 obj-$(CONFIG_MACB) += macb.o
+obj-$(CONFIG_S6GMAC) += s6gmac.o
 
 obj-$(CONFIG_ARM) += arm/
 obj-$(CONFIG_DEV_APPLETALK) += appletalk/