[PATCH 4/5] ARM: rmobile: Merge prior-stage firmware DT fragment into U-Boot DT on Gen3

[Marek Vasut]

The prior-stage firmware generates DT fragment containing the /firmware
node, /reserved-memory node and /memory@ nodes. Merge these nodes into
the U-Boot DT, so U-Boot can use this information.

Signed-off-by: Marek Vasut <marek.vasut+rene...@gmail.com>
Cc: Nobuhiro Iwamatsu <iwama...@nigauri.org>
Cc: Simon Glass <s...@chromium.org>
Cc: Tom Rini <tr...@konsulko.com>
---
 board/renesas/rcar-common/common.c | 28 ++++++++++------------------
 1 file changed, 10 insertions(+), 18 deletions(-)

diff --git a/board/renesas/rcar-common/common.c 
b/board/renesas/rcar-common/common.c
index 37f8a46d7e..9113ff19ea 100644
--- a/board/renesas/rcar-common/common.c
+++ b/board/renesas/rcar-common/common.c
@@ -19,32 +19,24 @@ DECLARE_GLOBAL_DATA_PTR;
 /* If the firmware passed a device tree use it for U-Boot DRAM setup. */
 extern u64 rcar_atf_boot_args[];
 
-int dram_init(void)
+int fdtdec_board_setup(const void *fdt_blob)
 {
-       const void *atf_fdt_blob = (const void *)(rcar_atf_boot_args[1]);
-       const void *blob;
+       void *atf_fdt_blob = (void *)(rcar_atf_boot_args[1]);
 
-       /* Check if ATF passed us DTB. If not, fall back to builtin DTB. */
        if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
-               blob = atf_fdt_blob;
-       else
-               blob = gd->fdt_blob;
+               fdt_overlay_apply_node((void *)fdt_blob, 0, atf_fdt_blob, 0);
 
-       return fdtdec_setup_mem_size_base_fdt(blob);
+       return 0;
 }
 
-int dram_init_banksize(void)
+int dram_init(void)
 {
-       const void *atf_fdt_blob = (const void *)(rcar_atf_boot_args[1]);
-       const void *blob;
-
-       /* Check if ATF passed us DTB. If not, fall back to builtin DTB. */
-       if (fdt_magic(atf_fdt_blob) == FDT_MAGIC)
-               blob = atf_fdt_blob;
-       else
-               blob = gd->fdt_blob;
+       return fdtdec_setup_mem_size_base_fdt(gd->fdt_blob);
+}
 
-       fdtdec_setup_memory_banksize_fdt(blob);
+int dram_init_banksize(void)
+{
+       fdtdec_setup_memory_banksize_fdt(gd->fdt_blob);
 
        return 0;
 }
-- 
2.25.1