Problem about porting e310 for VC707/VC709

After reading some discuss about porting e300 for other FPGA(zedboard, zybo…), I find these board all have QSPI flah which is supported by e300 SoC.But on VC707/VC709, there are linear flash, the interface is different from QSPI flash.So I want to let e300 boot from a ROM including program.How can I add this ROM and edit it address.
Thanks in advance!