Boot failures when zImage size goes a little over 3MB?

Hi Steve,

did you try to increase the parameter 'Link address offset for booting'?

This is from the old NiosWiki:

<div class='codetop'>CODE</div><div class='codemain' style='height:200px;white-space:pre;overflow:auto'>If your kernel image is large, you will need to change this config.

Processor type and features-->(0x00500000) Link address offset for booting.

The zImage load address is ( your sdram base address + link address

offset ). The boot loader will uncompress the code to the beginning of

sdram. If the uncompressed code is bigger than the default 5M, the two

area will overlap and corrupt. The compressed image offset should be

adjusted to a higher value when the kernel image is big, eg, large

files in romfs dir. You can change this value to about 2/3 of the size

of your sdram, eg, 20M out fo 32M. I suggest 2/3 because the gzip

compression ratio is about 1:2. The zImage boot loader does not

relocate/move itself.

</div>

We had to increase it to:

kernel configuration --> Processor type and features ---> (0x01300000) Link address offset for booting

Good luck,

Ricardo.