net/fec: restore interrupt mask after software-reset in fec_stop()
After the change from mdio polling to irq, it became necessary to
restore the interrupt mask after resetting the chip in fec_stop().
Otherwise, with all irqs disabled, no communication with the PHY will be
possible after e.g. un-/replugging the cable and the device gets
stalled.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index 391a553..768b840 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -118,6 +118,8 @@
#define FEC_ENET_MII ((uint)0x00800000) /* MII interrupt */
#define FEC_ENET_EBERR ((uint)0x00400000) /* SDMA bus error */
+#define FEC_DEFAULT_IMASK (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII)
+
/* The FEC stores dest/src/type, data, and checksum for receive packets.
*/
#define PKT_MAXBUF_SIZE 1518
@@ -1213,8 +1215,7 @@
writel(0, fep->hwp + FEC_R_DES_ACTIVE);
/* Enable interrupts we wish to service */
- writel(FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII,
- fep->hwp + FEC_IMASK);
+ writel(FEC_DEFAULT_IMASK, fep->hwp + FEC_IMASK);
}
static void
@@ -1233,8 +1234,8 @@
/* Whack a reset. We should wait for this. */
writel(1, fep->hwp + FEC_ECNTRL);
udelay(10);
-
writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED);
+ writel(FEC_DEFAULT_IMASK, fep->hwp + FEC_IMASK);
}
static int __devinit
