Phy read timeout in ibm_new_emac driver
super.firetwister at googlemail.com
Wed Apr 23 15:06:31 EST 2008
On Wednesday 16 April 2008, Benjamin Herrenschmidt wrote:
> Somebody knows off hand what the standard says the timeout should be ?
I didn't find any documentation on the standard, but I had a look at other
au1000_eth.c waits 20 ms (20 * 1ms) in mdio_read.
bfin_mac.c waits 500 * 1us in mdio_poll.
In both functions the last delay before the timeout is useless, like in
new_emac. Not nice, but timeouts shouldn't occur anyway.
new emac probably doesn't wait long enough, but 20ms seems to be a bit too
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