[microblaze-uclinux] Frame buffer support in MMU-enabled kernel

[Simon Tam <simontam1234@xxxxxxxxx>]

Hi,

    I am trying to include Xilinx frame buffer driver in the kernel with the MMU support tuned on. I got the following error during compilation:

drivers/built-in.o: In function `fb_mmap':
: undefined reference to `io_remap_pfn_range'
make[1]: *** [vmlinux] Error 1

    It appears io_remap_pfn_range is not defined when MMU is turned on in asm/pgtable.h. So my question is what I am trying to do even supported by the current released MMU version. I had no problem making xilinx_fb to work in the non-MMU version.

Thanks,

Simon