From fd3e2b4de366a32cd342675bdcd43b72159913ee Mon Sep 17 00:00:00 2001
From: Detlev Casanova <detlev.casanova@collabora.com>
Date: Fri, 9 Jun 2023 11:19:08 -0400
Subject: [PATCH] renesas: rcar: Apply ATF overlay for reserved-memory
The function fdtdec_board_setup() is called early and adds the overlay
from ATF to the u-boot device tree. That is necessary so that u-boot
doesn't use reserved memory.
Linux also needs to know about that reserved memory so the overlay from
ATF needs to be aplied on the linux device tree as well.
This commit makes sure that the ATF overlay is applied to both device trees.
Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Adam Ford <aford173@gmail.com>
---
board/renesas/rcar-common/common.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/board/renesas/rcar-common/common.c b/board/renesas/rcar-common/common.c
index f38453af82..f976c99028 100644
--- a/board/renesas/rcar-common/common.c
+++ b/board/renesas/rcar-common/common.c
@@ -25,12 +25,17 @@ extern u64 rcar_atf_boot_args[];
#define FDT_RPC_PATH "/soc/spi@ee200000"
-int fdtdec_board_setup(const void *fdt_blob)
+static void apply_atf_overlay(void *fdt_blob)
{
void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]);
if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
- fdt_overlay_apply_node((void *)fdt_blob, 0, atf_fdt_blob, 0);
+ fdt_overlay_apply_node(fdt_blob, 0, atf_fdt_blob, 0);
+}
+
+int fdtdec_board_setup(const void *fdt_blob)
+{
+ apply_atf_overlay((void *)fdt_blob);
return 0;
}
@@ -159,6 +164,7 @@ static void update_rpc_status(void *blob)
int ft_board_setup(void *blob, struct bd_info *bd)
{
+ apply_atf_overlay(blob);
scrub_duplicate_memory(blob);
update_rpc_status(blob);
--
2.39.5