Em Qui, 2010-10-07 às 09:33 -0500, Swarthout Edward L-SWARTHOU escreveu:
The LTSSM value of 8 indicates the problem. See:
"Table 18-111. PEX_LTSSM_STAT Status Codes" 8 - "Polling compliance"
This shows the 8536 is fine and detects the device's receivers on the bus, but the device has not responded with a correct training sequence.
There are many potential causes for the device not responding:
- device powered on?
- have correct clocks?
- if an fpga, is it loaded?
- is it out of reset?
I am considering a hardware design issue too, the hardware team is working on that.
What is the device? Can you query it with a jtag probe?
PCIE1 on bus 01 - 01I was expecting to find a peripherical on PCIE1 bus. I have a
switch
chip connected to Serdes 1 lane A.
I see. What switch? Is it on a card or directly on the board? Can you probe reset, power, and clocks?
A broadcom switch. It is directly on the board.
I tried to probe SD1_PLL_TPD (PLL test point Digital, pin V28 on MPC8536 E), there is no signal there. What Should I observe in this pin? I was expecting to observe the internal serdes clock signal.
Thanks
Carlos R. Moratelli