Hi Jose, > I want to do using an mmap() entry point in a driver, in order to map > this to the user. Of course in that case ioremap() does not work. > > Any Clue ? >
I used the little-endian flag on the Yosemite board (440EP) to test what the flag did. http://www.ovro.caltech.edu/~dwh/correlator/pdf/LNX-762-Hawkins.pdf http://www.ovro.caltech.edu/~dwh/correlator/software/driver_design.tar.gz Look at the mmap function in pci_io.c. /* PowerPC endian control * - default is cleared, big-endian */ #ifdef _PAGE_ENDIAN if (bar->little_endian) { pgprot_val(vma->vm_page_prot) |= _PAGE_ENDIAN; } else { pgprot_val(vma->vm_page_prot) &= ~_PAGE_ENDIAN; } if (pgprot_val(vma->vm_page_prot) & _PAGE_ENDIAN) { LOG_DEBUG("_PAGE_ENDIAN is set\n"); } else { LOG_DEBUG("_PAGE_ENDIAN is not set\n"); } #endif It might be the same for the PQ3 ... at least it'll be pretty similar. Dave _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
