Problem with sdram memory and PPI - BF607

Hi,

I have very strange problem with allocating memory to sdram. I am using DMA descriptors to switching memory banks where PPI is saving data.
When Im using : #pragma section ("sdram_bank0") i got only zeroes after PPI handler is executed.
When Im using :#pragma section ("sdram_bank1") everything works fine.
Any ideas why is that?

Regards

Adam