Index: kern/dev/e1000.c
===================================================================
--- kern/dev/e1000.c	(revision 7098)
+++ kern/dev/e1000.c	(working copy)
@@ -4,6 +4,7 @@
 #include <dev/pci.h>
 #include <dev/e1000.h>
 #include <dev/e1000reg.h>
+#include <dev/mii.h>
 #include <kern/segment.h>
 #include <kern/lib.h>
 #include <kern/kobj.h>
@@ -216,6 +217,41 @@
     return 0;
 }
 
+static int32_t
+e1000_phy_read(struct e1000_card *c, uint32_t reg)
+{
+    e1000_io_write(c, WMREG_MDIC,
+		   MDIC_REGADD(reg) | MDIC_PHYADD(1) | MDIC_OP_READ);
+    for (uint32_t i = 0; i < 100; i++) {
+	if (e1000_io_read(c, WMREG_MDIC) & MDIC_READY)
+	    break;
+	timer_delay(50000);
+    }
+
+    uint32_t mdic = e1000_io_read(c, WMREG_MDIC);
+    if (!(mdic & MDIC_READY)) {
+	cprintf("e1000_phy_read: timeout\n");
+	return -1;
+    }
+
+    return MDIC_DATA(mdic);
+}
+
+static int
+e1000_phy_write(struct e1000_card *c, uint32_t reg, uint16_t val)
+{
+    e1000_io_write(c, WMREG_MDIC,
+		   val | MDIC_REGADD(reg) | MDIC_PHYADD(1) | MDIC_OP_WRITE);
+    for (uint32_t i = 0; i < 100; i++) {
+	if (e1000_io_read(c, WMREG_MDIC) & MDIC_READY)
+	    return 0;
+	timer_delay(50000);
+    }
+
+    cprintf("e1000_phy_write: timeout\n");
+    return -1;
+}
+
 static void __attribute__((unused))
 e1000_dump_stats(struct e1000_card *c)
 {
@@ -317,6 +353,13 @@
     for (int i = 0; i < WM_MC_TABSIZE; i++)
 	e1000_io_write(c, WMREG_CORDOVA_MTA + i * 4, 0);
 
+    // Reset the PHY
+    e1000_phy_write(c, MII_ADVERTISE, ADVERTISE_10HALF | ADVERTISE_100HALF |
+				      ADVERTISE_10FULL | ADVERTISE_100FULL);
+    e1000_phy_write(c, MII_CTRL1000, ADVERTISE_1000FULL);
+    e1000_phy_write(c, MII_BMCR, e1000_phy_read(c, MII_BMCR) |
+				 BMCR_ANENABLE | BMCR_ANRESTART);
+
     // Enable RX, TX
     e1000_io_write(c, WMREG_RCTL,
 		   RCTL_EN | RCTL_RDMTS_1_2 | RCTL_DPF | RCTL_BAM);