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For no-mmu systems mmap() on RAM/ROM devices already works but for systems with mmu it probably was not tested and doesn't work. This patch allows using mmap() on MTD RAM/ROM devices on systems with MMU. It has been tested on mpc5121e based platform with MR0A16A MRAM device attached over LocalBus. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>