aboutsummaryrefslogtreecommitdiffstats
path: root/include/fdt_support.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/fdt_support.h')
-rw-r--r--include/fdt_support.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/fdt_support.h b/include/fdt_support.h
index 741e2360c22..9447a64e060 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -202,7 +202,8 @@ int ft_board_setup(void *blob, struct bd_info *bd);
*
* This function is called if CONFIG_BOARD_RNG_SEED is set, and must
* be provided by the board. It should return, via @buf, some suitable
- * seed value to pass to the kernel.
+ * seed value to pass to the kernel. Seed size could be set in a decimal
+ * environment variable rng_seed_size and it defaults to 64 bytes.
*
* @param buf A struct abuf for returning the seed and its size.
* @return 0 if ok, negative on error.