diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/serial_lpuart.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 96173ca..0a5e159 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -17,6 +17,10 @@ #define US1_OR (1 << 3) #define UC2_TE (1 << 3) #define UC2_RE (1 << 2) +#define CFIFO_TXFLUSH (1 << 7) +#define CFIFO_RXFLUSH (1 << 6) +#define SFIFO_RXOF (1 << 2) +#define SFIFO_RXUF (1 << 0) DECLARE_GLOBAL_DATA_PTR; @@ -85,6 +89,12 @@ static int lpuart_serial_init(void) __raw_writeb(0, &base->umodem); __raw_writeb(0, &base->uc1); + /* Disable FIFO and flush buffer */ + __raw_writeb(0x0, &base->upfifo); + __raw_writeb(0x0, &base->utwfifo); + __raw_writeb(0x1, &base->urwfifo); + __raw_writeb(CFIFO_TXFLUSH | CFIFO_RXFLUSH, &base->ucfifo); + /* provide data bits, parity, stop bit, etc */ serial_setbrg(); |