diff options
Diffstat (limited to 'drivers/serial/serial_pl01x.c')
| -rw-r--r--[-rwxr-xr-x] | drivers/serial/serial_pl01x.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/serial/serial_pl01x.c b/drivers/serial/serial_pl01x.c index 839b0a812..b4a05e4dc 100755..100644 --- a/drivers/serial/serial_pl01x.c +++ b/drivers/serial/serial_pl01x.c @@ -118,6 +118,14 @@ int serial_init (void) unsigned int remainder; unsigned int fraction; + /* Empty RX fifo if necessary */ + if (IO_READ(port[CONSOLE_PORT] + UART_PL011_CR) & UART_PL011_CR_UARTEN) { + while (!(IO_READ(port[CONSOLE_PORT] + UART_PL01x_FR) + & UART_PL01x_FR_RXFE)) { + IO_READ(port[CONSOLE_PORT] + UART_PL01x_DR); + } + } + /* ** First, disable everything. */ @@ -148,7 +156,7 @@ int serial_init (void) /* program receive line control register */ IO_WRITE(port[CONSOLE_PORT] + 0x1C, 0x70); #endif - + /* ** Finally, enable the UART */ |