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* cache: add ALLOC_CACHE_ALIGN_BUFFER macroAnton staaf2011-10-25-0/+2
| | | | | | | | | | | | | This macro is used to allocate cache line size aligned stack buffers for use with DMA hardware. Signed-off-by: Anton Staaf <robotboy@chromium.org> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Aneesh V <aneesh@ti.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Wolfgang Denk <wd@denx.de>
* arm: do not force d-cache enable on all boardsAneesh V2011-09-04-0/+51
c2dd0d45540397704de9b13287417d21049d34c6 added dcache_enable() to board_init_r(). This enables d-cache for all ARM boards. As a result some of the arm boards that are not cache-ready are broken. Revert this change and allow platform code to take the decision on d-cache enabling. Also add some documentation for cache usage in ARM. Signed-off-by: Aneesh V <aneesh@ti.com>