diff options
| -rw-r--r-- | drivers/escc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/escc.c b/drivers/escc.c index 4da89174..0f0d43a3 100644 --- a/drivers/escc.c +++ b/drivers/escc.c @@ -46,6 +46,9 @@ static volatile unsigned char *escc_serial_dev; #define Tx8 0x60 /* Tx 8 bits/character */ #define DTR 0x80 /* DTR */ +/* Write Register 9 */ +#define SW_CHAN_RESET_B 0x40 /* Software reset channel B */ + /* Write Register 14 (Misc control bits) */ #define BRENAB 1 /* Baud rate generator enable */ #define BRSRC 2 /* Baud rate generator source */ @@ -80,6 +83,9 @@ static void escc_uart_port_putchar(uintptr_t port, unsigned char c) static void uart_init_line(volatile unsigned char *port, unsigned long baud, int index) { + CTRL(port) = 9; // reg 9 + CTRL(port) = SW_CHAN_RESET_B << index; + CTRL(port) = 4; // reg 4 CTRL(port) = SB1 | X16CLK; // no parity, async, 1 stop bit, 16x // clock |