[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>

2 files changed, 48 insertions, 0 deletions

diff --git a/drivers/net/fec_8xx/Kconfig b/drivers/net/fec_8xx/Kconfig
index de04d68673d9..4560026ed419 100644
--- a/drivers/net/fec_8xx/Kconfig
+++ b/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
+
diff --git a/drivers/net/fec_8xx/fec_mii.c b/drivers/net/fec_8xx/fec_mii.c
index 803eb095cf8e..3b44ac1a7bfe 100644
--- a/drivers/net/fec_8xx/fec_mii.c
+++ b/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,