arm64: add support for reserved memory defined by device tree

Enable reserved memory initialization from device tree.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>

2 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 27bbcfc7202a..6abf15407dca 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -43,6 +43,7 @@ config ARM64
         select NO_BOOTMEM
         select OF
         select OF_EARLY_FLATTREE
+        select OF_RESERVED_MEM
         select PERF_USE_VMALLOC
         select POWER_RESET
         select POWER_SUPPLY
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index d0b4c2efda90..3fb8d50dfdaa 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -160,6 +160,7 @@ void __init arm64_memblock_init(void)
                 memblock_reserve(base, size);
         }
 
+        early_init_fdt_scan_reserved_mem();
         dma_contiguous_reserve(0);
 
         memblock_allow_resize();