sysmo-bts
/
u-boot
9
0
Fork 0
Code Pull Requests Releases Activity

Wait for the link to come up on kirkwood network init 

This patch makes the device wait for up to 5 seconds for the link to
come up, similar to what many of the other network drivers do. This
avoids confusing situations where, e.g., a tftp fails when initiated
early after U-boot has started (before the link has come up).

Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This commit is contained in:
Simon Kagstrom 2009-08-20 10:13:06 +02:00 committed by Ben Warren
parent bb1ca3b27f
commit cad713bf75
1 changed files with 14 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/net/kirkwood_egiga.c
View File

@ -400,6 +400,7 @@ static int kwgbe_init(struct eth_device *dev)
{
struct kwgbe_device *dkwgbe = to_dkwgbe(dev);
struct kwgbe_registers *regs = dkwgbe->regs;
int i;
/* setup RX rings */
kwgbe_init_rx_desc_ring(dkwgbe);
@ -447,13 +448,20 @@ static int kwgbe_init(struct eth_device *dev)
#if (defined (CONFIG_MII) || defined (CONFIG_CMD_MII)) \
&& defined (CONFIG_SYS_FAULT_ECHO_LINK_DOWN)
u16 phyadr;
miiphy_read(dev->name, KIRKWOOD_PHY_ADR_REQUEST,
KIRKWOOD_PHY_ADR_REQUEST, &phyadr);
if (!miiphy_link(dev->name, phyadr)) {
printf("%s: No link on %s\n", __FUNCTION__, dev->name);
return -1;
/* Wait up to 5s for the link status */
for (i = 0; i < 5; i++) {
u16 phyadr;
miiphy_read(dev->name, KIRKWOOD_PHY_ADR_REQUEST,
KIRKWOOD_PHY_ADR_REQUEST, &phyadr);
/* Return if we get link up */
if (miiphy_link(dev->name, phyadr))
return 0;
udelay(1000000);
}
printf("No link on %s\n", dev->name);
return -1;
#endif
return 0;
}