bootm: Tidy up use of autostart env var
This has different semantics in different places. Go with the bootm method
and put it in a common function so that the behaviour is consistent in
U-Boot. Update the docs.
To be clear, this changes the way that 'bootelf' and standalone boot
work. Before, if autostart was set to "fred" or "YES", for example, they
would consider that a "yes". This may change behaviour for some boards,
but the only in-tree boards which mention autostart use "no" to disable
it, which will still work.
Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Wolfgang Denk <wd@denx.de>
diff --git a/cmd/bootm.c b/cmd/bootm.c
index 92468d0..b82a872 100644
--- a/cmd/bootm.c
+++ b/cmd/bootm.c
@@ -140,9 +140,7 @@
int bootm_maybe_autostart(struct cmd_tbl *cmdtp, const char *cmd)
{
- const char *ep = env_get("autostart");
-
- if (ep && !strcmp(ep, "yes")) {
+ if (env_get_autostart()) {
char *local_args[2];
local_args[0] = (char *)cmd;
local_args[1] = NULL;