diff --git a/drivers/bch/Kconfig b/drivers/bch/Kconfig
index 38a36e54d6c..cdf70d59ae2 100644
--- a/drivers/bch/Kconfig
+++ b/drivers/bch/Kconfig
@@ -24,4 +24,8 @@ config BCH_ENCRYPTION_KEY_SIZE
 	default 16
 	depends on BCH_ENCRYPTION
 
+config BCH_BUFFER_ALIGNMENT
+	int "Buffer aligned bytes"
+	default 0
+
 endif # BCH
diff --git a/drivers/bch/bchlib_setup.c b/drivers/bch/bchlib_setup.c
index d51dfebd1b4..9c57c2021fc 100644
--- a/drivers/bch/bchlib_setup.c
+++ b/drivers/bch/bchlib_setup.c
@@ -112,7 +112,11 @@ int bchlib_setup(const char *blkdev, bool readonly, FAR void **handle)
 
   /* Allocate the sector I/O buffer */
 
-  bch->buffer = (FAR uint8_t *)kmm_malloc(bch->sectsize);
+#if CONFIG_BCH_BUFFER_ALIGNMENT != 0
+  bch->buffer = kmm_memalign(CONFIG_BCH_BUFFER_ALIGNMENT, bch->sectsize);
+#else
+  bch->buffer = kmm_malloc(bch->sectsize);
+#endif
   if (!bch->buffer)
     {
       ferr("ERROR: Failed to allocate sector buffer\n");