2009/9/17 Wolfgang Denk wd@denx.de:
Dear javier Martin,
In message eedb5540909170031k7b9076eeo8d4f60c799f1a27c@mail.gmail.com you wrote:
I have tried u-boot for the imx27lite board from LogicPD which is currently in u-boot-arm repository and I have experienced some stability problems:
- Sometimes the system gets stuck in serial_getc() from serial_mxc.c
driver when printing information (ex. mii read ).
- Pings do not work properly, the system gets stuck in fec_send()
function waiting always for a frame to be sent (which actually does not happen).
- Sometimes the system gets stuck when saving the environment to flash
'saveenv', but other times it does it well.
We don't see any such issues on the board we have here in the lab.
I would like to help to solve this problems, but I don't know exactly where to begin from. I have been reviewing clock settings. Could this be happening because this board is using 32KHz xtal as reference instead of 26MHz one?
Yes, of course this could be a problem. Is this an original LogicPD board? Did you adapt the code for the different clock speed? What exactly did you change?
Sorry, I am not trying it on an original LogicPD board. Our board is based in i.mx27 ipcam. We have a different phy which is in 0x0 address instead of 0x1F and we have also a different NOR flash model. We have also the external 32KHz xtal at 32.768 KHz.
- The init code for our sdram is different as we have different model and memory configuration, however I made a memory test and all seems fine. - I adapted NOR flash configuration and PHY_ADDRESS only, and experienced the previous problems. I could expect issues with NOR flash but I don't know why I could have any issue with ethernet.
Have you experienced these problems also?
No, we didn't.
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Monday is an awful way to spend one seventh of your life.