we have a ADSP589-EZ-kit and i connect a pcie-to-usb converter with pci interface on ez-kit. Then I connected a u-disk to the usb interface of converter ,I can only read data from the USB flash disk, but I can't write data to it.The adapter chip is pd720202 of Renesas。
Error message about PCI in kernel boot
PCI: bus0: Fast back to back transfers disabled
pci 0000:00:00.0: can't enable device: BAR 0 [mem 0x00000000-0x00001fff 64bit] not claimed
pci 0000:00:00.0: Can't enable PCI device, BIOS handoff failed.
pci 0000:00:00.0: BAR 0: assigned [mem 0x5e000000-0x5e001fff 64bit]