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| author | David S. Miller <davem@davemloft.net> | 2010-05-31 14:46:45 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-31 14:46:45 +0200 |
| commit | 64960848abd18d0bcde3f53ffa7ed0b631e6b25d (patch) | |
| tree | 8424a1c550a98ce09f127425fde9b7b5f2f5027a /drivers/serial/bfin_sport_uart.h | |
| parent | net: fix sk_forward_alloc corruptions (diff) | |
| parent | Linux 2.6.35-rc1 (diff) | |
| download | linux-64960848abd18d0bcde3f53ffa7ed0b631e6b25d.tar.xz linux-64960848abd18d0bcde3f53ffa7ed0b631e6b25d.zip | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/serial/bfin_sport_uart.h')
| -rw-r--r-- | drivers/serial/bfin_sport_uart.h | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/serial/bfin_sport_uart.h b/drivers/serial/bfin_sport_uart.h index abe03614e4df..9ce253e381d2 100644 --- a/drivers/serial/bfin_sport_uart.h +++ b/drivers/serial/bfin_sport_uart.h @@ -37,7 +37,21 @@ #define SPORT_GET_TFSDIV(sport) bfin_read16(((sport)->port.membase + OFFSET_TFSDIV)) #define SPORT_GET_TX(sport) bfin_read16(((sport)->port.membase + OFFSET_TX)) #define SPORT_GET_RX(sport) bfin_read16(((sport)->port.membase + OFFSET_RX)) -#define SPORT_GET_RX32(sport) bfin_read32(((sport)->port.membase + OFFSET_RX)) +/* + * If another interrupt fires while doing a 32-bit read from RX FIFO, + * a fake RX underflow error will be generated. So disable interrupts + * to prevent interruption while reading the FIFO. + */ +#define SPORT_GET_RX32(sport) \ +({ \ + unsigned int __ret; \ + if (ANOMALY_05000473) \ + local_irq_disable(); \ + __ret = bfin_read32((sport)->port.membase + OFFSET_RX); \ + if (ANOMALY_05000473) \ + local_irq_enable(); \ + __ret; \ +}) #define SPORT_GET_RCR1(sport) bfin_read16(((sport)->port.membase + OFFSET_RCR1)) #define SPORT_GET_RCR2(sport) bfin_read16(((sport)->port.membase + OFFSET_RCR2)) #define SPORT_GET_RCLKDIV(sport) bfin_read16(((sport)->port.membase + OFFSET_RCLKDIV)) @@ -58,4 +72,15 @@ #define SPORT_TX_FIFO_SIZE 8 +#define SPORT_UART_GET_CTS(x) gpio_get_value(x->cts_pin) +#define SPORT_UART_DISABLE_RTS(x) gpio_set_value(x->rts_pin, 1) +#define SPORT_UART_ENABLE_RTS(x) gpio_set_value(x->rts_pin, 0) + +#if defined(CONFIG_SERIAL_BFIN_SPORT0_UART_CTSRTS) \ + || defined(CONFIG_SERIAL_BFIN_SPORT1_UART_CTSRTS) \ + || defined(CONFIG_SERIAL_BFIN_SPORT2_UART_CTSRTS) \ + || defined(CONFIG_SERIAL_BFIN_SPORT3_UART_CTSRTS) +# define CONFIG_SERIAL_BFIN_SPORT_CTSRTS +#endif + #endif /* _BFIN_SPORT_UART_H */ |