diff options
Diffstat (limited to 'cpu/mcf52x2/serial.c')
| -rw-r--r-- | cpu/mcf52x2/serial.c | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/cpu/mcf52x2/serial.c b/cpu/mcf52x2/serial.c index 79628d0..fe412a0 100644 --- a/cpu/mcf52x2/serial.c +++ b/cpu/mcf52x2/serial.c @@ -65,6 +65,28 @@ void rs_serial_setbaudrate(int port,int baudrate) uartp[MCFUART_UBG2] = ((int)clock & 0xff); /* set lsb baud */ uartp[MCFUART_UFPD] = ((int)fraction & 0xf); /* set baud fraction adjust */ #endif +#if defined(CONFIG_M5282) + volatile unsigned char *uartp; + long clock; + + switch (port) + { + case 1: + uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE2); + break; + case 2: + uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE3); + break; + default: + uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE1); + } + + clock = (long) CFG_CLK / ((long) 32 * baudrate); /* Set baud above */ + + uartp[MCFUART_UBG1] = (((int)clock >> 8) & 0xff); /* set msb baud */ + uartp[MCFUART_UBG2] = ((int) clock & 0xff); /* set lsb baud */ + +#endif }; void rs_serial_init(int port,int baudrate) @@ -74,10 +96,19 @@ void rs_serial_init(int port,int baudrate) /* * Reset UART, get it into known state... */ - if (port == 0) - uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE1); - else - uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE2); + switch (port) + { + case 1: + uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE2); + break; + #if defined(CONFIG_M5282) + case 2: + uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE3); + break; + #endif + default: + uartp = (volatile unsigned char *) (CFG_MBAR + MCFUART_BASE1); + } uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETRX; /* reset RX */ uartp[MCFUART_UCR] = MCFUART_UCR_CMDRESETTX; /* reset TX */ |