Problem accessing physical memory...

David Woodhouse dwmw2 at
Thu Jun 29 10:16:06 EDT 2000

akc at said:
>  I've tried mtdram and it works, but I am going to make a flash driver
> and need access to physical memory.

Ignore slram which I haven't even looked at for months, and look at nora.c
Once we've coded up support for the various kinds of flash chips, all 
you'll need to do is provide the mmap access functions defined in 

ISTR something about PPC falling over if you try a large ioremap() because 
it doesn't have a lot of spare VM space. Try smaller dynamic mappings 
rather than mapping the whole lot all at once. 


To unsubscribe, send "unsubscribe mtd" to majordomo at

More information about the linux-mtd mailing list