[PATCH] fec_8xx: Add support for Intel PHY LX971

The following patch add support for the Intel LX971 PHY.
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/fec_8xx/Kconfig

@@ -12,3 +12,9 @@ config FEC_8XX_DM9161_PHY
 	bool "Support DM9161 PHY"
 	depends on FEC_8XX
 	default n
+
+config FEC_8XX_LXT971_PHY
+	bool "Support LXT971/LXT972 PHY"
+	depends on FEC_8XX
+	default n
+

drivers/net/fec_8xx/fec_mii.c

@@ -203,6 +203,39 @@ static void dm9161_shutdown(struct net_device *dev)
 
 #endif
 
+#ifdef CONFIG_FEC_8XX_LXT971_PHY
+
+/* Support for LXT971/972 PHY */
+
+#define MII_LXT971_PCR		16 /* Port Control Register */
+#define MII_LXT971_SR2		17 /* Status Register 2 */
+#define MII_LXT971_IER		18 /* Interrupt Enable Register */
+#define MII_LXT971_ISR		19 /* Interrupt Status Register */
+#define MII_LXT971_LCR		20 /* LED Control Register */
+#define MII_LXT971_TCR		30 /* Transmit Control Register */
+
+static void lxt971_startup(struct net_device *dev)
+{
+	struct fec_enet_private *fep = netdev_priv(dev);
+
+	fec_mii_write(dev, fep->mii_if.phy_id, MII_LXT971_IER, 0x00F2);
+}
+
+static void lxt971_ack_int(struct net_device *dev)
+{
+	struct fec_enet_private *fep = netdev_priv(dev);
+
+	fec_mii_read(dev, fep->mii_if.phy_id, MII_LXT971_ISR);
+}
+
+static void lxt971_shutdown(struct net_device *dev)
+{
+	struct fec_enet_private *fep = netdev_priv(dev);
+
+	fec_mii_write(dev, fep->mii_if.phy_id, MII_LXT971_IER, 0x0000);
+}
+#endif
+
 /**********************************************************************************/
 
 static const struct phy_info phy_info[] = {
@@ -215,6 +248,15 @@ static const struct phy_info phy_info[] = {
 	 .shutdown = dm9161_shutdown,
 	 },
 #endif
+#ifdef CONFIG_FEC_8XX_LXT971_PHY
+	{
+	 .id = 0x0001378e,
+	 .name = "LXT971/972",
+	 .startup = lxt971_startup,
+	 .ack_int = lxt971_ack_int,
+	 .shutdown = lxt971_shutdown,
+	},
+#endif
 #ifdef CONFIG_FEC_8XX_GENERIC_PHY
 	{
 	 .id = 0,