Hi Christoph. Nice simplification. Your patch deletes the following nice comment: > -/* > - * On LEON PCI Memory space is mapped 1:1 with physical address space. > - * > - * I/O space is located at low 64Kbytes in PCI I/O space. The I/O addresses > - * are converted into CPU addresses to virtual addresses that are mapped with > - * MMU to the PCI Host PCI I/O space window which are translated to the low > - * 64Kbytes by the Host controller. > - */ Maybe this is obvious and not relevant to keep? Other than that: Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx> Sam