asix: Add a new driver for the AX88172A

The Asix AX88172A is a USB 2.0 Ethernet interface that supports both an
internal PHY as well as an external PHY (connected via MII).

This patch adds a driver for the AX88172A and provides support for
both modes and the phylib.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/usb/asix.h b/drivers/net/usb/asix.h
index 790af241f197..77d9e4c1e235 100644
--- a/drivers/net/usb/asix.h
+++ b/drivers/net/usb/asix.h
@@ -74,6 +74,10 @@
 #define AX_CMD_SW_PHY_STATUS            0x21
 #define AX_CMD_SW_PHY_SELECT            0x22
 
+#define AX_PHY_SELECT_MASK              (BIT(3) | BIT(2))
+#define AX_PHY_SELECT_INTERNAL          0
+#define AX_PHY_SELECT_EXTERNAL          BIT(2)
+
 #define AX_MONITOR_MODE                 0x01
 #define AX_MONITOR_LINK                 0x02
 #define AX_MONITOR_MAGIC                0x04
@@ -181,6 +185,7 @@ struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
 int asix_set_sw_mii(struct usbnet *dev);
 int asix_set_hw_mii(struct usbnet *dev);
 
+int asix_read_phy_addr(struct usbnet *dev, int internal);
 int asix_get_phy_addr(struct usbnet *dev);
 
 int asix_sw_reset(struct usbnet *dev, u8 flags);