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arm: add support for reserved memory defined by device tree

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Enable reserved memory initialization from device tree.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This commit is contained in:
Marek Szyprowski 2014-02-28 14:42:54 +01:00 committed by Grant Likely
parent f618c4703a
commit bcedb5f9bd
2 changed files with 3 additions and 0 deletions
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1
arch/arm/Kconfig
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@ -1918,6 +1918,7 @@ config USE_OF
select IRQ_DOMAIN
select OF
select OF_EARLY_FLATTREE
select OF_RESERVED_MEM
help
Include support for flattened device tree machine descriptions.

2
arch/arm/mm/init.c
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@ -323,6 +323,8 @@ void __init arm_memblock_init(struct meminfo *mi,
if (mdesc->reserve)
mdesc->reserve();
early_init_fdt_scan_reserved_mem();
/*
* reserve memory for DMA contigouos allocations,
* must come from DMA area inside low memory