Commit 68cbfae8 authored by Michal Simek's avatar Michal Simek
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microblaze: Add support for reserved memory defined by DT 



In DT reserved memory nodes can be added as is described by
Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
but Microblaze didn't have a support for it. The similar change was done
for ARC by commit 1b10cb21 ("ARC: add support for reserved memory
defined by device tree"). It is pretty much enough to call
early_init_fdt_scan_reserved_mem().
Microblaze is not using initial_boot_params that's why there is no need to
call early_init_fdt_reserve_self().

Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/da4395776bf0de7207767abcc8a5df05bf411816.1645795048.git.michal.simek@xilinx.com
parent e4c70fc6

arch/microblaze/mm/init.c

+3 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/kernel.h>

#include <linux/mm.h> /* mem_init */

#include <linux/initrd.h>

#include <linux/of_fdt.h>

#include <linux/pagemap.h>

#include <linux/pfn.h>

#include <linux/slab.h>
@@ -261,6 +262,8 @@ asmlinkage void __init mmu_init(void) 


	parse_early_param();



	early_init_fdt_scan_reserved_mem();



	/* CMA initialization */

	dma_contiguous_reserve(memory_start + lowmem_size - 1);