[PATCH 22/26 v6] spl: spl_legacy: Add cache flush after reading U-Boot image

[Stefan Roese]

From: Weijie Gao <weijie.gao at mediatek.com>

Flush the cache after reading of the U-Boot proper into SDRAM so that
it can be started.

This is needed on some platforms, e.g. MT76x8.

Signed-off-by: Weijie Gao <weijie.gao at mediatek.com>
Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Weijie Gao <weijie.gao at mediatek.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
---
Changes in v6:
- New patch

 common/spl/spl_legacy.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/common/spl/spl_legacy.c b/common/spl/spl_legacy.c
index 2cd2a74a4c..e320206098 100644
--- a/common/spl/spl_legacy.c
+++ b/common/spl/spl_legacy.c
@@ -4,6 +4,7 @@
  */
 
 #include <common.h>
+#include <cpu_func.h>
 #include <malloc.h>
 #include <spl.h>
 
@@ -108,5 +109,8 @@ int spl_load_legacy_img(struct spl_image_info *spl_image,
 		return -EINVAL;
 	}
 
+	/* Flush cache of loaded U-Boot image */
+	flush_cache((unsigned long)spl_image->load_addr, spl_image->size);
+
 	return 0;
 }
-- 
2.26.0