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Blackfin EMAC driver: Fix Ethernet communication bug (dupliated and lost packets)

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Fix Ethernet communication bug(dupliated and lost packets)
in RMII PHY mode- dont call mac_disable and mac_enable during
10/100 REFCLK changes - mac_enable screws up the DMA descriptor chain

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Michael Hennerich 2007-10-30 17:04:09 +08:00 committed by Jeff Garzik
parent a06da75469
commit 2ea10b1a54
1 changed files with 0 additions and 2 deletions
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2
drivers/net/bfin_mac.c
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@ -371,7 +371,6 @@ static void bf537_adjust_link(struct net_device *dev)
if (phydev->speed != lp->old_speed) { if (phydev->speed != lp->old_speed) {
#if defined(CONFIG_BFIN_MAC_RMII) #if defined(CONFIG_BFIN_MAC_RMII)
u32 opmode = bfin_read_EMAC_OPMODE(); u32 opmode = bfin_read_EMAC_OPMODE();
bf537mac_disable();
switch (phydev->speed) { switch (phydev->speed) {
case 10: case 10:
opmode |= RMII_10; opmode |= RMII_10;
@ -386,7 +385,6 @@ static void bf537_adjust_link(struct net_device *dev)
break; break;
} }
bfin_write_EMAC_OPMODE(opmode); bfin_write_EMAC_OPMODE(opmode);
bf537mac_enable();
#endif #endif
new_state = 1; new_state = 1;