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Reduce spin wait time consumed in GMII register access routines.

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Waiting for 1ms for each GMII register access looks overkill and it
may also decrease overall performance of driver because re(4)
invokes mii_tick for every hz.

Tested by:	rpaulo
This commit is contained in:
Pyun YongHyeon 2008-12-08 02:48:41 +00:00
parent 9ca5167c5a
commit b45fb24843
1 changed files with 2 additions and 4 deletions
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6
sys/dev/re/if_re.c
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@ -417,13 +417,12 @@ re_gmii_readreg(device_t dev, int phy, int reg)
}
CSR_WRITE_4(sc, RL_PHYAR, reg << 16);
DELAY(1000);
for (i = 0; i < RL_TIMEOUT; i++) {
DELAY(30);
rval = CSR_READ_4(sc, RL_PHYAR);
if (rval & RL_PHYAR_BUSY)
break;
DELAY(100);
}
if (i == RL_TIMEOUT) {
@ -445,13 +444,12 @@ re_gmii_writereg(device_t dev, int phy, int reg, int data)
CSR_WRITE_4(sc, RL_PHYAR, (reg << 16) |
(data & RL_PHYAR_PHYDATA) | RL_PHYAR_BUSY);
DELAY(1000);
for (i = 0; i < RL_TIMEOUT; i++) {
DELAY(30);
rval = CSR_READ_4(sc, RL_PHYAR);
if (!(rval & RL_PHYAR_BUSY))
break;
DELAY(100);
}
if (i == RL_TIMEOUT) {