powerpc/fsl-booke: Make CAM entries used for lowmem configurable

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On booke processors, the code that maps low memory only uses up to three
CAM entries, even though there are sixteen and nothing else uses them.

Make this number configurable in the advanced options menu along with max
low memory size.  If one wants 1 GB of lowmem, then it's typically
necessary to have four CAM entries.

Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

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Trent Piepho 2008-12-08 19:34:58 -08:00 • committed by Kumar Gala

parent c8f3570b7e

commit 96051465fd

2 changed files with 21 additions and 1 deletions

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16

arch/powerpc/Kconfig

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6

arch/powerpc/mm/fsl_booke_mmu.c

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