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sprinkle delay() and mec_mii_wait() in MII access functions 

with this I no longer get spontaneous reboots during network traffic
This commit is contained in:
macallan 2007-07-15 23:24:47 +00:00
parent ab6c3b4502
commit 01a8ddf94a
1 changed files with 6 additions and 2 deletions
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8
sys/arch/sgimips/mace/if_mec.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_mec.c,v 1.11 2007/07/09 20:52:26 ad Exp $ */
/* $NetBSD: if_mec.c,v 1.12 2007/07/15 23:24:47 macallan Exp $ */
/*
* Copyright (c) 2004 Izumi Tsutsui.
@ -64,7 +64,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_mec.c,v 1.11 2007/07/09 20:52:26 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_mec.c,v 1.12 2007/07/15 23:24:47 macallan Exp $");
#include "opt_ddb.h"
#include "bpfilter.h"
@ -554,8 +554,10 @@ mec_mii_readreg(struct device *self, int phy, int reg)
bus_space_write_8(st, sh, MEC_PHY_ADDRESS,
(phy << MEC_PHY_ADDR_DEVSHIFT) | (reg & MEC_PHY_ADDR_REGISTER));
delay(25);
bus_space_write_8(st, sh, MEC_PHY_READ_INITIATE, 1);
delay(25);
mec_mii_wait(sc);
for (i = 0; i < 20; i++) {
delay(30);
@ -607,8 +609,10 @@ mec_mii_wait(struct mec_softc *sc)
if ((busy & MEC_PHY_DATA_BUSY) == 0)
return 0;
#if 0
if (busy == 0xffff) /* XXX ? */
return 0;
#endif
}
printf("%s: MII timed out\n", sc->sc_dev.dv_xname);