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Commit 4e7c84ec authored by Max Filippov's avatar Max Filippov
Browse files

xtensa: support reserved-memory DT node 



This allows reserving regions of physical memory from the device tree.
See Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
for more details.

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 0e46c111

arch/xtensa/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -435,6 +435,7 @@ config USE_OF 
	bool "Flattened Device Tree support"

	select OF

	select OF_EARLY_FLATTREE

	select OF_RESERVED_MEM

	help

	  Include support for flattened device tree machine descriptions.

arch/xtensa/mm/init.c

+2 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/mman.h>

#include <linux/nodemask.h>

#include <linux/mm.h>

#include <linux/of_fdt.h>



#include <asm/bootparam.h>

#include <asm/page.h>
@@ -48,6 +49,7 @@ void __init bootmem_init(void) 
	else

		memblock_reserve(0, 1);



	early_init_fdt_scan_reserved_mem();



	if (!memblock_phys_mem_size())

		panic("No memory found!\n");