[PATCH v2] microblaze: add support for reserved memory defined by device tree

From: Alvaro Gamez Machado
Date: Wed Oct 23 2019 - 06:25:59 EST


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: Alvaro Gamez Machado <alvaro.gamez@xxxxxxxxxx>
---
arch/microblaze/mm/init.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index a015a951c8b7..b69362fbfdbd 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/swap.h>
#include <linux/export.h>
+#include <linux/of_fdt.h>

#include <asm/page.h>
#include <asm/mmu_context.h>
@@ -188,6 +189,9 @@ void __init setup_memory(void)

void __init mem_init(void)
{
+ early_init_fdt_reserve_self();
+ early_init_fdt_scan_reserved_mem();
+
high_memory = (void *)__va(memory_start + lowmem_size - 1);

/* this will put all memory onto the freelists */
--
2.23.0