Usually u-boot sends a phy request in its network init routine. An uboot without network support doesn't do it and I endup without working network. I still can switch between 10/100Mbit (according to the LED on the hub and phy registers) but I can't send or receive any data.
At this point I'm not sure if the PowerON Reset takes the PHY a few nsecs too early out of reset or if this reset is required and everyone relies on U-boot performing this reset. Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de> --- This is done on a custom mpc512x board. Unfortunately I don't have other boards to check. The PHY is a AMD Am79C874, phylib uses the generic one. drivers/net/fs_enet/fs_enet-main.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c index ee15402..a3c962b 100644 --- a/drivers/net/fs_enet/fs_enet-main.c +++ b/drivers/net/fs_enet/fs_enet-main.c @@ -823,7 +823,8 @@ static int fs_init_phy(struct net_device *dev) } fep->phydev = phydev; - + phy_write(phydev, MII_BMCR, BMCR_RESET); + udelay(1); return 0; } -- 1.6.4.GIT _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev