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Commit a78a4cbd authored by Santosh Shilimkar's avatar Santosh Shilimkar Committed by Tony Lindgren
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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: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: default avatarJon Hunter <jon-hunter@ti.com>
Tested-by: default avatarJon Hunter <jon-hunter@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 5d4e9971

arch/arm/mach-omap2/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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