Hello, I am almost done with my porting of kernel 2.4.16 to our platform using RM5231A. But I had to make a couple of very basic hacks and I am trying to understand if there is any way I can avoid them. First the memcpy wouldn't work for me properly, both the compiler generated and also the one under arch/mips/lib/memcpy.c, so I had to change the lib version to do byte copy. I know this is a very crude change but things worked. Second, the Kseg0 coherency algorithm selection in the function ld_mmu_r4xx0( ) seems to be improper for RM5231A, This function sets the CP0 config register K0 field to 3 which as per RM5231A user manual is Cacheable, noncoherent, write back policy Should this not be set to 0, which is cacheable, non-coherent, write-through, no write allocate? Also from the knowledge base I understand there is a cache aliasing problem associated with RM5231A when page size is set to 4KB. The document recommends to invalidate the cache before retiring a virtual page OR coloring of the pages. Can someone tell me if this fix is already taken care of? For me when I enable caching under "Kernel hacking" my kernel crashes with page fault, when it tries to run bin/init, consistently. Thanks Dinesh
