[U-Boot-Users] SDRAM "anti-problem"

[Peter Asemann]

I have the "problem" that i can't corrupt my SDRAM.
To verify my SDRAM refresh settings are reasonable, I did my best in 
reprogramming my MPC865's UPM to not refresh the SDRAM often enough.

I set the timer loop field (TLFA) to minimum, the PTA to maximum and the 
PTP to maximum to have the refresh come too seldom to keep the data.

Whatever, the SDRAM is very unimpressed and keeps the data I wrote into 
it without a single bit corrupted for at least minutes.

Another problem is that the mpcbdm I use to test the SDRAM takes up to 
30 secs to read/write about 60K of data into/out of RAM (burst mode 
disabled). Is that a mpcbdm issue? I can't believe the SDRAM can be so slow.

Peter Asemann