[PATCH] ARM: mvebu: clearfog: don't override set fdtfile env

[Baruch Siach]

Only set the fdtfile environment variable when not already set.

Fixes: 867572f09ebe6 ("ARM: mvebu: clearfog: run-time selection of DT file")
Cc: Joel Johnson <mrjoel at lixil.net>
Reported-by: Andre Heider <a.heider at gmail.com>
Signed-off-by: Baruch Siach <baruch at tkos.co.il>
---
 board/solidrun/clearfog/clearfog.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/board/solidrun/clearfog/clearfog.c b/board/solidrun/clearfog/clearfog.c
index d5535ebebecd..92443d5177d9 100644
--- a/board/solidrun/clearfog/clearfog.c
+++ b/board/solidrun/clearfog/clearfog.c
@@ -240,6 +240,9 @@ int board_eth_init(struct bd_info *bis)
 
 int board_late_init(void)
 {
+	if (env_get("fdtfile"))
+		return 0;
+
 	cf_read_tlv_data();
 
 	if (sr_product_is(&cf_tlv_data, "Clearfog Base"))
-- 
2.28.0