[PATCH rtems 3/3] bsps/fdt: Make sure data is cache aligned.

[Christian Mauderer]

The cache of the fdt blob is flushed after copy. Therefore it should be
aligned.
---
 bsps/shared/start/bsp-fdt.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/bsps/shared/start/bsp-fdt.c b/bsps/shared/start/bsp-fdt.c
index 7e8d8922a8..f55273e4ca 100644
--- a/bsps/shared/start/bsp-fdt.c
+++ b/bsps/shared/start/bsp-fdt.c
@@ -28,10 +28,10 @@
 #endif
 
 #ifdef BSP_FDT_BLOB_READ_ONLY
-static const uint32_t
+static const uint32_t CPU_STRUCTURE_ALIGNMENT
 bsp_fdt_blob[BSP_FDT_BLOB_SIZE_MAX / sizeof(uint32_t)] = { 0xdeadbeef };
 #else
-static uint32_t
+static uint32_t CPU_STRUCTURE_ALIGNMENT
 bsp_fdt_blob[BSP_FDT_BLOB_SIZE_MAX / sizeof(uint32_t)];
 #endif
 
@@ -48,6 +48,7 @@ void bsp_fdt_copy(const void *src)
 
   if (s != d) {
     size_t m = MIN(sizeof(bsp_fdt_blob), fdt_totalsize(src));
+    size_t aligned_size = ((m-1) | (CPU_CACHE_LINE_BYTES-1)) + 1;
     size_t n = (m + sizeof(*d) - 1) / sizeof(*d);
     size_t i;
 
@@ -55,7 +56,7 @@ void bsp_fdt_copy(const void *src)
       d[i] = s[i];
     }
 
-    rtems_cache_flush_multiple_data_lines(d, m);
+    rtems_cache_flush_multiple_data_lines(d, aligned_size);
   }
 }
 
-- 
2.26.2