Add support for SMSC95XX USB 2.0 10/100MBit Ethernet Adapter

The SMSC95XX is a USB hub with a built-in Ethernet adapter. This adds support
for this, using the USB host network framework.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Eric BĂ©nard <eric@eukrea.com>
diff --git a/include/usb_ether.h b/include/usb_ether.h
index 825c275..a7fb26b 100644
--- a/include/usb_ether.h
+++ b/include/usb_ether.h
@@ -51,6 +51,11 @@
 	unsigned char	irqinterval;	/* Intervall for IRQ Pipe */
 
 	/* private fields for each driver can go here if needed */
+#ifdef CONFIG_USB_ETHER_SMSC95XX
+	size_t rx_urb_size;  /* maximum USB URB size */
+	u32 mac_cr;  /* MAC control register value */
+	int have_hwaddr;  /* 1 if we have a hardware MAC address */
+#endif
 };
 
 /*
@@ -65,4 +70,12 @@
 		      struct eth_device *eth);
 #endif
 
+#ifdef CONFIG_USB_ETHER_SMSC95XX
+void smsc95xx_eth_before_probe(void);
+int smsc95xx_eth_probe(struct usb_device *dev, unsigned int ifnum,
+			struct ueth_data *ss);
+int smsc95xx_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
+			struct eth_device *eth);
+#endif
+
 #endif /* __USB_ETHER_H__ */