net: Add SMC911X driver to Kconfig, convert

We add the various SMC91XX symbols to drivers/net/Kconfig and then this
converts the following to Kconfig:
   CONFIG_SMC911X
   CONFIG_SMC911X_BASE
   CONFIG_SMC911X_16_BIT
   CONFIG_SMC911X_32_BIT

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Apply to the rest of the tree, re-squash old and new patch]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index d67927c..c1ce54e 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -211,6 +211,34 @@
 	  This driver supports Realtek 8169 series gigabit ethernet family of
 	  PCI/PCIe chipsets/adapters.
 
+config SMC911X
+	bool "SMSC LAN911x and LAN921x controller driver"
+
+if SMC911X
+
+config SMC911X_BASE
+	hex "SMC911X Base Address"
+	help
+	  Define this to hold the physical address
+	  of the device (I/O space)
+
+choice
+	prompt "SMC911X bus width"
+	default SMC911X_16_BIT
+
+config SMC911X_32_BIT
+	bool "Enable 32-bit interface"
+
+config SMC911X_16_BIT
+	bool "Enable 16-bit interface"
+	help
+	  Define this if data bus is 16 bits. If your processor
+	  automatically converts one 32 bit word to two 16 bit
+	  words you may also try CONFIG_SMC911X_32_BIT.
+
+endchoice
+endif #SMC911X
+
 config SUN7I_GMAC
 	bool "Enable Allwinner GMAC Ethernet support"
 	help