[U-Boot-Users] MV64460 Burst reads from BootCS

[Roel Loeffen]

Hi all,

We discover some serious problems accessing flash at BootCS of the Marvell MV64460. It looks like burst reads make the whole bridge hang. >From inside U-Boot as well as using only the BDI2000 debugger.

Reading the flash with bursts enabled (which is default), makes it sometimes impossible to access any registers/dram/devices anymore, only zeros can be read.

It also freezes the CPU somehow the debugger cannot halt it anymore with a normal halt (COP halt), it has to use COP freeze to take over control again.

I cannot say this problem does not occur accessing other spaces, so it can also be a problem at the PPC60x bus.

Has anyone over excpirianced this before?

Thanks in advance!

Roel

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