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ARM: OMAP2PLUS: Enable HIGHMEM 

HIGMEM support in kernel is quite mature now and we have boards
like ZOOM, PANDA, SDP where 1 GB memories are installed. With
HIGHMEM disabled not all of the 1GB of RAM (only ~700MB) can be
accessed. Hence, enable HIGMEM to make use of the entire memory.

On the boards which doesn't have more than 768 MB memory, all
the memory is directly mapped in "lowmem" and highmem isn't
exercised. Hence, there should be no impact by enabling HIGHMEM
for boards that do not need it.

Tested on OMAP4460 Panda-ES.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Tested-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Santosh Shilimkar 2012-05-09 14:19:13 -07:00 committed by Tony Lindgren
parent 5d4e9971c8
commit a78a4cbd41
1 changed files with 1 additions and 0 deletions
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1
arch/arm/mach-omap2/Kconfig
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@ -17,6 +17,7 @@ config ARCH_OMAP2PLUS_TYPICAL
select MENELAUS if ARCH_OMAP2
select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4
select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4
select HIGHMEM
help
Compile a kernel suitable for booting most boards