DMA_BURST_SIZE in Xilinx EDK 9.1i

-- specify the size (must be power of 2) of burst that dma uses to

-- tranfer data on the bus, a value of one causes dma to use single

-- transactions (burst disabled).

so i changed:

constant DMA_BURST_SIZE : integer := 16;

to

constant DMA_BURST_SIZE : integer := 1;

but when i now synthesize my design, i get the following error:

ERROR:Xst:774 - "/home/fatmike/EDK/hw/XilinxProcessorIPLib/pcores/ ipif_common_v1_00_d/hdl/vhdl/dma_sg_sim.vhd" line 524: Constant must have a value : 's'.

What is wrong here and how can i disable burst mode?

I am using Xilinx EDK 9.1i.

Thank you in advance,

Sebastian