mtd devices inaccessible

[Eric DEJONC]

I'm sorry to ask so many question but,
I hadn't made a clean, that's why I got a stange error, but now, I can't
compile the new kernel:
missing mtdlink.o
        I had to modify the makefile of the drivers/mtd and remove the
ifeq($below25),y) but I have a 2.5.6.2 kernel.

then when I boot, I have this:

Probe at base[0x00](0x00000000) past the end of the map(0xffffffff)
Probe at base[0x00](0x00000000) past the end of the map(0xffffffff)
Probe at base[0x00](0x00000000) past the end of the map(0xffffffff)
CFI: Found no SA1100 flash device at location zero


and mtd devices are not accessible.

Where could be my error