Max Filippov a5944195d0 xtensa: implement initialize_cacheattr for MPU cores
Use CONFIG_MEMMAP_CACHEATTR to initialize MPU as described in the Xtensa
LSP RM document. Coalesce adjacent regions with the same cacheattr.
Update Kconfig help text.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2019-05-07 10:36:34 -07:00
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