Autoboot timeout defined by CONFIG_BOOTDELAY will not be accurate if
CONFIG_USB_KEYBOARD and CONFIG_SYS_USB_EVENT_POLL are defined in
configuration file and when tstc() function for checking key pressed
takes longer time than 10 ms (e.g., 50 ms) to finish.
Signed-off-by: Jim Lin <ji...@nvidia.com>
---
Changes in v2:
- use do-while and get_timer to count timeout.
Changes in v3:
- revert original udelay(10000); for safety.
common/main.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/common/main.c b/common/main.c
index b145f85..dcd2a42 100644
--- a/common/main.c
+++ b/common/main.c
@@ -225,6 +225,7 @@ static inline
int abortboot(int bootdelay)
{
int abort = 0;
+ unsigned long ts;
#ifdef CONFIG_MENUPROMPT
printf(CONFIG_MENUPROMPT);
@@ -248,11 +249,10 @@ int abortboot(int bootdelay)
#endif
while ((bootdelay > 0) && (!abort)) {
- int i;
-
--bootdelay;
- /* delay 100 * 10ms */
- for (i=0; !abort && i<100; ++i) {
+ /* delay 1000 ms */
+ ts = get_timer(0);
+ do {
if (tstc()) { /* we got a key press */
abort = 1; /* don't auto boot */
bootdelay = 0; /* no more delay */
@@ -264,7 +264,7 @@ int abortboot(int bootdelay)
break;
}
udelay(10000);
- }
+ } while (!abort && get_timer(ts) < 1000);
printf("\b\b\b%2d ", bootdelay);
}
--
1.7.3
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