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authorMichal Simek <michal.simek@xilinx.com>2022-02-25 16:17:31 +0300
committerMichal Simek <michal.simek@xilinx.com>2022-04-21 11:54:57 +0300
commit68cbfae83a7208d960034813c4744bf9651a725d (patch)
treefe9aabd16ff55330cc93c59ccf6c47ba460d83b4 /arch/microblaze
parente4c70fc695667d115e050470375b315685ab069c (diff)
downloadlinux-68cbfae83a7208d960034813c4744bf9651a725d.tar.xz
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 1b10cb21d888 ("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: Michal Simek <michal.simek@xilinx.com> Link: https://lore.kernel.org/r/da4395776bf0de7207767abcc8a5df05bf411816.1645795048.git.michal.simek@xilinx.com
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/mm/init.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index de0d8b03af21..f4e503461d24 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -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);