diff options
Diffstat (limited to 'cpu/at91rm9200/serial.c')
| -rw-r--r-- | cpu/at91rm9200/serial.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/cpu/at91rm9200/serial.c b/cpu/at91rm9200/serial.c index 43e15535e6..c16c9d4f0f 100644 --- a/cpu/at91rm9200/serial.c +++ b/cpu/at91rm9200/serial.c @@ -33,8 +33,17 @@ #include <asm/io.h> #include <asm/arch/hardware.h> +#if !defined(CONFIG_DBGU) && !defined(CONFIG_USART1) +#error must define one of CONFIG_DBGU or CONFIG_USART1 +#endif + /* ggi thunder */ +#ifdef CONFIG_DBGU AT91PS_USART us = (AT91PS_USART) AT91C_BASE_DBGU; +#endif +#ifdef CONFIG_USART1 +AT91PS_USART us = (AT91PS_USART) AT91C_BASE_US1; +#endif void serial_setbrg (void) { @@ -49,8 +58,14 @@ void serial_setbrg (void) int serial_init (void) { /* make any port initializations specific to this port */ +#ifdef CONFIG_DBGU *AT91C_PIOA_PDR = AT91C_PA31_DTXD | AT91C_PA30_DRXD; /* PA 31 & 30 */ *AT91C_PMC_PCER = 1 << AT91C_ID_SYS; /* enable clock */ +#endif +#ifdef CONFIG_USART1 + *AT91C_PIOB_PDR = AT91C_PB21_TXD1 | AT91C_PB20_RXD1; + *AT91C_PMC_PCER |= 1 << AT91C_ID_USART1; /* enable clock */ +#endif serial_setbrg (); us->US_CR = AT91C_US_RSTRX | AT91C_US_RSTTX; |