Hi all,
I have a MPC8343 board and Im doing some hardware validation, trying to use TSEC1 in RGMII 10 Mbps mode.
TSEC1 is connected to a FPGA and while wating for the final logic, Im testing a logic that puts TSEC1 in loop, RXD0 -> TXD0, RXD1 -> TXD1, GTX_CLK -> RX_CLK and so on.
The following pins are unconnected in my hardware:
TSEC1_COL TSEC1_CRS TSEC1_RX_ER TSEC1_TX_ER
My registers configuration:
RCWH[TSEC1M] = 00 (RGMII) MACCFG2[IF] = 01 (MII) ECNTRL[RPM] = 1 (Reduced)
ECNTRL[R100] = 0 (10 Mbps)
---------------------------
MACCFG2 = 0x00007105 ECNTRL = 0x00001010
The problem is that when I send a ping, its sends an arp request so I should receive an arp request cause its in loop, but i got the follwing error (TSEC1 is called TSEC0 in u-boot):
=> ping 192.168.1.1 Speed: 10, full duplex Using TSEC0 device sending ARP for b0100ae3 ARP broadcast 1 Got error 14 ARP broadcast 2 Got error 14 ping failed
Error 14 means:
- Rx non-octet aligned frame - Rx CRC error
And if a change MACCFG2[IF] to 10 (GMII), i got no packets in rx buffer.
Is there any other configuration in u-boot that I have to do? Is there a problem using a loop in FPGA? Or a real PHY do some more things to the signal when we put it in loop?
PS: FPGA doesnt reply to any mdio commands, so u-boot thinks its a generic phy.
Cheers,
-- Alemao