[U-Boot] [UBOOT PATCH] env: mmc: Fix misaligned buffer address when saving envvars to FAT

[Vipul Kumar]

From: Gary Mussar <gmussar at ciena.com>

When doing a u-boot saveenv with the environment in FAT we see the
following warning:

ZynqMP> saveenv
Saving Environment to FAT...
writing uboot.env
FAT: Misaligned buffer address (000000007deb9b60)
done

This can be eliminated by aligning the environment to an appropriate
boundary.

Signed-off-by: Gary Mussar <gmussar at ciena.com>
Signed-off-by: Vipul Kumar <vipul.kumar at xilinx.com>
---
 include/environment.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/environment.h b/include/environment.h
index 50c62c5..d6c530d 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -150,7 +150,11 @@ typedef struct environment_s {
        unsigned char   flags;          /* active/obsolete flags        */
 #endif
        unsigned char   data[ENV_SIZE]; /* Environment data             */
-} env_t;
+} env_t
+#ifdef ARCH_DMA_MINALIGN
+__aligned(ARCH_DMA_MINALIGN)
+#endif
+;

 #ifdef ENV_IS_EMBEDDED
 extern env_t environment;
--
2.7.4

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