aboutsummaryrefslogtreecommitdiff
path: root/drivers/net
diff options
context:
space:
mode:
authorJon Smirl <jonsmirl@gmail.com>2009-03-11 15:08:56 -0400
committerJohn Rigby <jrigby@freescale.com>2009-03-13 09:58:37 -0600
commitf949bd8d089ec3059c460ac829c0d919e1d7af0e (patch)
treec17fcbe2c622d590efa55d7b757651ff88a9b76e /drivers/net
parent3c92217732edfc0016c3cbdc828471d013d23a36 (diff)
downloadu-boot-linaro-stable-f949bd8d089ec3059c460ac829c0d919e1d7af0e.tar.gz
MPC5200 FEC MII speed register
Set a non-zero speed in the MII register so that MII commands will work. Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/mpc5xxx_fec.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/drivers/net/mpc5xxx_fec.c b/drivers/net/mpc5xxx_fec.c
index 2bf901e13..0f1d1af0e 100644
--- a/drivers/net/mpc5xxx_fec.c
+++ b/drivers/net/mpc5xxx_fec.c
@@ -281,13 +281,6 @@ static int mpc5xxx_fec_init(struct eth_device *dev, bd_t * bis)
}
fec->eth->x_cntrl = 0x00000000; /* half-duplex, heartbeat disabled */
- if (fec->xcv_type != SEVENWIRE) {
- /*
- * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
- * and do not drop the Preamble.
- */
- fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
- }
/*
* Set Opcode/Pause Duration Register
@@ -640,6 +633,15 @@ static void mpc5xxx_fec_halt(struct eth_device *dev)
*/
udelay(10);
+ /* don't leave the MII speed set to zero */
+ if (fec->xcv_type != SEVENWIRE) {
+ /*
+ * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
+ * and do not drop the Preamble.
+ */
+ fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
+ }
+
#if (DEBUG & 0x3)
printf("Ethernet task stopped\n");
#endif
@@ -897,6 +899,13 @@ int mpc5xxx_fec_initialize(bd_t * bis)
#else
#error fec->xcv_type not initialized.
#endif
+ if (fec->xcv_type != SEVENWIRE) {
+ /*
+ * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
+ * and do not drop the Preamble.
+ */
+ fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
+ }
dev->priv = (void *)fec;
dev->iobase = MPC5XXX_FEC;