xilinx ML310 board PCI DMA problem

Hi! all! I have a problem with runing PCI DMA example provided by Xilinx EDK install CD on ML310 board. The file xpci_example_level_1.c try to write destination, source , byte length into DAM control register start at

0x3d000000, but whenever it do that it cause OPB bus error, i appreciate any help on this. Also another example, xemac_intr_simple_dma_example, can't even be compiled as some parameters are not defined, and search in all files, i didn't find it. So what can i say about Xilix?