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When reading PHY regs over the i2c bus, the turnaround ACK bit 

is read one clock edge too late. This bit is driven low by
slave (as any other input data bits from slave) when the clock
is LOW. The current code did read the bit after the clock was
driven high again.

From OpenBSD (from FreeBSD).

Another small change

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13822 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini 2005-07-25 14:30:02 +00:00
parent 63d5a418ab
commit e4a11b6a77
2 changed files with 3 additions and 5 deletions
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2
src/add-ons/kernel/drivers/network/wb840/interface.c
View File

@ -130,9 +130,9 @@ wb_mii_readreg(wb_device *device, wb_mii_frame *frame)
/* Check for ack */
SIO_CLR(WB_SIO_MII_CLK);
MII_DELAY(device);
ack = read32(device->reg_base + WB_SIO) & WB_SIO_MII_DATAOUT;
SIO_SET(WB_SIO_MII_CLK);
MII_DELAY(device);
ack = read32(device->reg_base + WB_SIO) & WB_SIO_MII_DATAOUT;
SIO_CLR(WB_SIO_MII_CLK);
MII_DELAY(device);
SIO_SET(WB_SIO_MII_CLK);

6
src/add-ons/kernel/drivers/network/wb840/wb840.c
View File

@ -1,4 +1,4 @@
/* Copyright (c) 2003-2004
/* Copyright (c) 2003-2005
* Stefano Ceccherini <burton666@libero.it>. All rights reserved.
* This file is released under the MIT license
*/
@ -293,9 +293,7 @@ wb_set_rx_filter(wb_device *device)
{
// TODO: Basically we just config the filter to accept broadcasts
// packets. We'll need also to configure it to multicast.
int32 rxFilter = read32(device->reg_base + WB_NETCFG);
write32(device->reg_base + WB_NETCFG, rxFilter | WB_NETCFG_RX_BROAD);
WB_SETBIT(device->reg_base + WB_NETCFG, WB_NETCFG_RX_BROAD);
}