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856480eef0
For armv8, U-Boot uses a static map defined as 'mem_map' for configuring the MMU's page tables, done by mmu_setup. Though this works well for simpler platforms, it makes creating runtime carveouts by modifying the static array at runtime exceedingly complex like in mach-snapdragon/board.c. Creation of such carveouts are much better handled by APIs such as mmu_change_region_attr once the page tables are configured. Usually such carveouts are configured via the device-tree's reserved-memory node which provides the address and size for the carveout. Therefore this patch adds mmu_unmap_reserved_mem which acts as a wrapper over mmu_change_region_attr, helping unmap a reserved-memory region. Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Anshul Dalal <anshuld@ti.com> Tested-by: Wadim Egorov <w.egorov@phytec.de>