My apologies, I've posted this is AVR32_u-boot where it probably belongs.
But I'm running out of time to ship some prototypes tomorrow, and this is my last major issue with them, so could I throw myself on the mercy of the assembled wisdom please? Maybe someone will say - you stupid person, you need to change this line to that....
We have built a new design based on the ATNGW100, but we were pushed for space, so we fitted the Nat Semi DP83849C dual PHY
It works great under Linux, but Linux seems to do a probe for PHYs at multiple addresses on the MII busses.
Yes, I know the very latest u-boot sources can do similar, but I had to freeze on 2008-10 because of the saveenv issue. Too late to update now.
Anyway, only my 2nd PHY works under u-boot, and that's not the WAN interface for Linux ( as painted on the box ), so I can't use the same cable for both.
Could anyone look at the problem report below and see if they can instantly tell me what to change, or what to examine
Can I squeeze any more progress info out of u-boot ?
Truly grateful.
David Collier
www.dexdyne.com
============= question ==================
Both Ethernets work under Linux.. so it can't be too serious.
the linux startup says:
eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:10, irq=-1) eth1: attached PHY driver [Generic PHY] (mii_bus:phy_addr=1:00, irq=-1)
now we have strapped PHYAD4 high, so the 2 phys should have addresses binary 10000 and 10001
I can't see any relationship between 0:10 and 1:00 and 10000 and 10001 !!!
well maybe - the first one looks right - binary 10000 is hex 10 but the other port should be on hex 11, not hex 0!!!!!!
--------------- but under u-boot
in my file derived from ATNGW10.c I have
void board_init_info(void) { gd->bd->bi_phy_id[0] = 0x01; gd->bd->bi_phy_id[1] = 0x03; }
I THINK the first line refers to the PHY that doesn't work, and the 2nd to the one that does, but I'm aware of the possibility of a cross-over
but changing either/both those values seems to make no difference to what happens....
I still get MACB0 "no PHY" and MACB1 connects...