[PATCH RFC 3/4] ARM: init: add support for reserved memory defined by device tree

From: Josh Cartwright
Date: Wed Jan 22 2014 - 14:02:06 EST

From: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>

Enable reserved memory initialization from device tree.

Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Laura Abbott <lauraa@xxxxxxxxxxxxxx>
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
arch/arm/mm/init.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 403ba90..5efe0b4 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -17,6 +17,7 @@
#include <linux/nodemask.h>
#include <linux/initrd.h>
#include <linux/of_fdt.h>
+#include <linux/of_reserved_mem.h>
#include <linux/highmem.h>
#include <linux/gfp.h>
#include <linux/memblock.h>
@@ -323,6 +324,8 @@ void __init arm_memblock_init(struct meminfo *mi,
if (mdesc->reserve)

+ early_init_dt_scan_reserved_mem();
* reserve memory for DMA contigouos allocations,
* must come from DMA area inside low memory
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