From abe41ba65eb27b7680aa59627501d68b90a8419a Mon Sep 17 00:00:00 2001
From: thead_admin <occ_thead@service.alibaba.com>
Date: Sun, 24 Dec 2023 02:32:03 +0000
Subject: Linux_SDK_V1.4.2

Signed-off-by: thead_admin <occ_thead@service.alibaba.com>
---
 common/fdt_support.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'common/fdt_support.c')

diff --git a/common/fdt_support.c b/common/fdt_support.c
index a334e008..f1f2d1ea 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -7,6 +7,7 @@
  */
 
 #include <common.h>
+#include <abuf.h>
 #include <env.h>
 #include <mapmem.h>
 #include <stdio_dev.h>
@@ -274,6 +275,7 @@ int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end)
 
 int fdt_chosen(void *fdt)
 {
+        struct abuf buf = {};
 	int   nodeoffset;
 	int   err;
 	char  *str;		/* used to set string properties */
@@ -289,6 +291,17 @@ int fdt_chosen(void *fdt)
 	if (nodeoffset < 0)
 		return nodeoffset;
 
+        if (IS_ENABLED(CONFIG_BOARD_RNG_SEED) && !board_rng_seed(&buf)) {
+                err = fdt_setprop(fdt, nodeoffset, "rng-seed",
+                                  abuf_data(&buf), abuf_size(&buf));
+                abuf_uninit(&buf);
+                if (err < 0) {
+                        printf("WARNING: could not set rng-seed %s.\n",
+                               fdt_strerror(err));
+                        return err;
+                }
+        }
+
 	str = env_get("bootargs");
 	if (str) {
 		err = fdt_setprop(fdt, nodeoffset, "bootargs", str,
-- 
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