[U-Boot] [PATCH] snowball: Clear UART RX FIFO
Without usb-serial cable plugged at this stage, some garbage is seen in UART RX FIFO, which blocks autoboot progress. The fix makes sure to empty the RX FIFO, before we wait for user input to interrupt autoboot.
Signed-off-by: Ramesh Chandrasekaran ramesh.chandrasekaran@stericsson.com --- board/st-ericsson/snowball/snowball.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/board/st-ericsson/snowball/snowball.c b/board/st-ericsson/snowball/snowball.c index 8c743c0..e750df1 100644 --- a/board/st-ericsson/snowball/snowball.c +++ b/board/st-ericsson/snowball/snowball.c @@ -253,6 +253,10 @@ int board_late_init(void) if ((raise_ab8500_gpio16() < 0)) printf("error: cant' raise GPIO16\n");
+ /* empty UART RX FIFO */ + while (tstc()) + (void) getc(); + return 0; }
Without usb-serial cable plugged at this stage, some garbage is seen in UART RX FIFO, which blocks autoboot progress. The fix makes sure to empty the RX FIFO, before we wait for user input to interrupt autoboot.
Signed-off-by: Ramesh Chandrasekaran
ramesh.chandrasekaran@stericsson.com
board/st-ericsson/snowball/snowball.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/board/st-ericsson/snowball/snowball.c b/board/st- ericsson/snowball/snowball.c index 8c743c0..e750df1 100644 --- a/board/st-ericsson/snowball/snowball.c +++ b/board/st-ericsson/snowball/snowball.c @@ -253,6 +253,10 @@ int board_late_init(void) if ((raise_ab8500_gpio16() < 0)) printf("error: cant' raise GPIO16\n");
- /* empty UART RX FIFO */
- while (tstc())
(void) getc();- return 0;
}
--
Hi Albert Aribaud,
Is the above patch going in for the release ? Not got any review comments until now from the community. Or please point me to the right person.
Ramesh
participants (2)
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Ramesh CHANDRASEKARAN -
Ramesh Chandrasekaran