From efdfd67f24d3d842a17909ec3b49504e44fc57f1 Mon Sep 17 00:00:00 2001
From: Francesco Dolcini <francesco.dolcini@toradex.com>
Date: Thu, 19 May 2022 16:22:26 +0200
Subject: fdt: Add U-Boot version to chosen node

commit 622ecee93a604c017aca23906c5cc903b4002b78 upstream.

Add a new device tree property "u-boot,version" in the chosen node to
pass the U-Boot version to the operating system.
This can be useful to implement a firmware upgrade procedure from the
operating system.

Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
---
 common/fdt_support.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/common/fdt_support.c b/common/fdt_support.c
index 3778de5368..3de89ad5b0 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -19,6 +19,7 @@
 #include <fdt_support.h>
 #include <exports.h>
 #include <fdtdec.h>
+#include <version.h>
 
 /**
  * fdt_getprop_u32_default_node - Return a node's property or a default
@@ -302,6 +303,15 @@ int fdt_chosen(void *fdt)
 		}
 	}
 
+	/* add u-boot version */
+	err = fdt_setprop(fdt, nodeoffset, "u-boot,version", PLAIN_VERSION,
+			  strlen(PLAIN_VERSION) + 1);
+	if (err < 0) {
+		printf("WARNING: could not set u-boot,version %s.\n",
+		       fdt_strerror(err));
+		return err;
+	}
+
 	return fdt_fixup_stdout(fdt, nodeoffset);
 }
 
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