Enable reserved memory initialization from device tree.

Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
 arch/arm/Kconfig   |    1 +
 arch/arm/mm/init.c |    3 +++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e25419817791..d0262bea8020 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -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.
 
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 804d61566a53..eee55d75bbfa 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)
                mdesc->reserve();
 
+       early_init_fdt_scan_reserved_mem();
+
        /*
         * reserve memory for DMA contigouos allocations,
         * must come from DMA area inside low memory
-- 
1.7.9.5

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