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>
---
common/main.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/common/main.c b/common/main.c
index b145f85..8cdfb8b 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 +249,13 @@ int abortboot(int bootdelay)
#endif
while ((bootdelay > 0) && (!abort)) {
- int i;
+ int i, j;
--bootdelay;
/* delay 100 * 10ms */
- for (i=0; !abort && i<100; ++i) {
+ j = 100;
+ for (i = 0; !abort && i < j; ++i) {
+ ts = get_timer(0);
if (tstc()) { /* we got a key press */
abort = 1; /* don't auto boot */
bootdelay = 0; /* no more delay */
@@ -263,7 +266,11 @@ int abortboot(int bootdelay)
# endif
break;
}
- udelay(10000);
+ ts = get_timer(ts);
+ if (ts < 10)
+ mdelay(10 - ts);
+ else
+ j = 1000 / (int) ts;
}
printf("\b\b\b%2d ", bootdelay);
--
1.7.3
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