[U-Boot-Users] EMAC2 & EMAC3 operation on PPC 440GX

David Grab
2005-06-21T13:00:34Z

Hello,

as mentioned before i?m using two Marvel 88E1111 PHY on my PPC440GX Board.
They are configured as a RGMII to copper interface for use with EMAC 2 & 3.
So now i?m in trouble with the configuration of the network. After booting i
set with "setenv ethact ppc_440x_eth2" EMAC2 for networking. After that i
try a "ping" to know if network is working. Reading the speed and duplex
from PHY works, but after that i got in an endless loop. I figured out, that
no interrupt is recognized and in 440gx_enet.c in ppc_440x_eth_init the
default configuration of the interrupt handler is for ETH0:

irq_install_handler (VECNUM_EWU0 + (hw_p->devnum * 2),
(interrupt_handler_t *) enetInt, dev);
irq_install_handler (VECNUM_ETH0 + (hw_p->devnum * 2),
(interrupt_handler_t *) enetInt, dev);

so i changed it as following...

irq_install_handler (VECNUM_EWU2 + (hw_p->devnum * 2),
(interrupt_handler_t *) enetInt, dev);
irq_install_handler (VECNUM_ETH2 + (hw_p->devnum * 2),
(interrupt_handler_t *) enetInt, dev);

and added in vecnum.h these lines:

#define VECNUM_ETH2 (64 + 0) /* Ethernet 0 interrupt status */
#define VECNUM_EWU2 (64 + 1) /* Ethernet 0 wakeup */

But this didn?t solve the problem. Actually i also couldn?t get the TxCLK
work on my RGMII Bridge and i don?t know why. The devices are configured as
100 MBit RGMII and receiving packets from network seems to be functioning
(EMAC_OCRX Register increments rapidly). I would be appreciated if someone
could give me a tip, what i have forgot to do.

Greets,

David