diff options
| author | Sonic Zhang <sonic.zhang@analog.com> | 2008-02-02 17:05:02 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-02-02 17:05:02 +0800 |
| commit | db288381e26e592b11572ce8199bedeadf0c0830 (patch) | |
| tree | e10eaa7b1a5b0bfefecd9417be43d12f5e82e006 /drivers | |
| parent | 4cb4f22b19237e63c460c53fbd1c417cdaf63014 (diff) | |
| download | linux-db288381e26e592b11572ce8199bedeadf0c0830.tar.gz linux-db288381e26e592b11572ce8199bedeadf0c0830.tar.bz2 linux-db288381e26e592b11572ce8199bedeadf0c0830.zip | |
[Blackfin] serial driver: Add flow control support to bf54x
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/serial/bfin_5xx.c | 12 |
2 files changed, 14 insertions, 2 deletions
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 202fb5c99b83..cf627cd1b4c8 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -699,14 +699,14 @@ config BFIN_UART1_CTSRTS config UART1_CTS_PIN int "UART1 CTS pin" - depends on BFIN_UART1_CTSRTS && (BF53x || BF561) + depends on BFIN_UART1_CTSRTS && !BF54x default -1 help Refer to ./include/asm-blackfin/gpio.h to see the GPIO map. config UART1_RTS_PIN int "UART1 RTS pin" - depends on BFIN_UART1_CTSRTS && (BF53x || BF561) + depends on BFIN_UART1_CTSRTS && !BF54x default -1 help Refer to ./include/asm-blackfin/gpio.h to see the GPIO map. diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index af866ab3f5a1..69ac7007682e 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -579,7 +579,11 @@ static unsigned int bfin_serial_get_mctrl(struct uart_port *port) if (uart->cts_pin < 0) return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; +# ifdef BF54x + if (UART_GET_MSR(uart) & CTS) +# else if (gpio_get_value(uart->cts_pin)) +# endif return TIOCM_DSR | TIOCM_CAR; else #endif @@ -594,9 +598,17 @@ static void bfin_serial_set_mctrl(struct uart_port *port, unsigned int mctrl) return; if (mctrl & TIOCM_RTS) +# ifdef BF54x + UART_PUT_MCR(uart, UART_GET_MCR(uart) & ~MRTS); +# else gpio_set_value(uart->rts_pin, 0); +# endif else +# ifdef BF54x + UART_PUT_MCR(uart, UART_GET_MCR(uart) | MRTS); +# else gpio_set_value(uart->rts_pin, 1); +# endif #endif } |