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

Message ID 1390417133-6650-4-git-send-email-joshc@codeaurora.org (mailing list archive)
State New, archived
Headers show

Commit Message

Josh Cartwright Jan. 22, 2014, 6:58 p.m. UTC 
From: Marek Szyprowski <m.szyprowski@samsung.com>

Enable reserved memory initialization from device tree.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
 arch/arm/mm/init.c | 3 +++
 1 file changed, 3 insertions(+)
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Patch

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