diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/ns16550.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index 78bfe6281c..47bad6f8e2 100644 --- a/drivers/serial/ns16550.c +++ b/drivers/serial/ns16550.c @@ -328,6 +328,10 @@ static inline void _debug_uart_init(void) struct ns16550 *com_port = (struct ns16550 *)CONFIG_VAL(DEBUG_UART_BASE); int baud_divisor; + /* Wait until tx buffer is empty */ + while (!(serial_din(&com_port->lsr) & UART_LSR_TEMT)) + ; + /* * We copy the code from above because it is already horribly messy. * Trying to refactor to nicely remove the duplication doesn't seem |