diff --git a/drivers/net/fm/p1023.c b/drivers/net/fm/p1023.c
new file mode 100644
index 0000000..c196e79
--- /dev/null
+++ b/drivers/net/fm/p1023.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <phy.h>
+#include <fm_eth.h>
+#include <asm/io.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_serdes.h>
+
+u32 port_to_devdisr[] = {
+	[FM1_DTSEC1] = MPC85xx_DEVDISR_TSEC1,
+	[FM1_DTSEC2] = MPC85xx_DEVDISR_TSEC2,
+};
+
+static int is_device_disabled(enum fm_port port)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 devdisr = in_be32(&gur->devdisr);
+
+	return port_to_devdisr[port] & devdisr;
+}
+
+phy_interface_t fman_port_enet_if(enum fm_port port)
+{
+	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 pordevsr = in_be32(&gur->pordevsr);
+
+	if (is_device_disabled(port))
+		return PHY_INTERFACE_MODE_NONE;
+
+	/* DTSEC1 can be SGMII, RGMII or RMII */
+	if (port == FM1_DTSEC1) {
+		if (is_serdes_configured(SGMII_FM1_DTSEC1))
+			return PHY_INTERFACE_MODE_SGMII;
+		if (pordevsr & MPC85xx_PORDEVSR_SGMII1_DIS) {
+			if (pordevsr & MPC85xx_PORDEVSR_TSEC1_PRTC)
+				return PHY_INTERFACE_MODE_RGMII;
+			else
+				return PHY_INTERFACE_MODE_RMII;
+		}
+	}
+
+	/* DTSEC2 only supports SGMII or RGMII */
+	if (port == FM1_DTSEC2) {
+		if (is_serdes_configured(SGMII_FM1_DTSEC2))
+			return PHY_INTERFACE_MODE_SGMII;
+		if (pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS)
+			return PHY_INTERFACE_MODE_RGMII;
+	}
+
+	return PHY_INTERFACE_MODE_NONE;
+}