I understand that if it is data sync problem then it should wait/hang at that place, But it is getting reset. When i probed reset status it says Check stop reset has happened.
We are using custom board based on MPC8313 processor, phy used in our board is LAN8700 and U-boot version used is 1.3.0. -Thanks Rupesh Jerry Van Baren-7 wrote: > > Please don't top quote. > > rudresh wrote: >> HI gvb >> >> I was trying to print the status of phy registers by putting some debug >> statements in adjust_link function of tsec.c (drivers/tsec.c). >> >> I found that after putting these debugs, i could not recreate the problem >> and ethernet works fine. >> >> does this mean there is DDR2 initialization problem in my code..? > > No, "fixing" the problem by putting in debug statements sounds more like > data cache (less likely) or bus interface unit (missing sync) issues > where your processor is holding on to the data rather than writing it > out when you think you wrote it out or reordering reads and writes > (missing sync/eieio issue). This would get into the "data accessor" > (read/write with sync calls) functions and proper use thereof. > > Having said that, I am puzzled how sync/timing issues would result in > your board spontaneously resetting - that is usually a memory corruption > problem. Adding print statements generally doesn't "solve" memory > corruption problems (sometimes it seems to due to changes in stack usage > if you have something set up wrong, but I cannot even speculate on > how/why/what could be set up wrong from the far end of a mail list). > > You didn't say what version of u-boot you are basing your code off of > nor what processor you are using. I don't have expertise w/ the tsec or > your PHY, perhaps if you are more specific someone with real experience > with the tsec, etc. can give more advice. > > gvb > >> Jerry Van Baren-7 wrote: >>> rudresh wrote: >>>> Hi, >>>> >>>> In Ethernet PHY LAN8700 driver having some issues, during tftp the >>>> large >>>> file of more than 2MB of the binary file , some time its hangup & >>>> sometime >>>> its reset the board. same driver is working in evaluation board with >>>> same >>>> PHY & interface . if i tried in customize board the problem is >>>> occurring >>>> every 2- 3 of iteration. how to fix this issue.. >>>> >>>> Thanks >>>> Rudresh >>> Hi Rudresh, >>> >>> If your ethernet driver uses DMA, it is probably due to a SDRAM >>> (DDR/DDR2/DDR3) configuration issue (fixable) or a board layout issue >>> (expensive to fix). >>> >>> <http://www.denx.de/wiki/view/DULG/UBootCrashAfterRelocation> >>> <http://www.denx.de/wiki/DULG/SDRAM> >>> >>> gvb > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > > -- View this message in context: http://www.nabble.com/Ethernet-PHY-LAN8700-tp22239868p22247116.html Sent from the Uboot - Users mailing list archive at Nabble.com. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
