diff options
| author | Claudio Scordino <claudio@evidence.eu.com> | 2010-05-03 13:31:28 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-05-04 16:59:11 +0100 |
| commit | e8faff7330a3501eafc9bfe5f4f15af444be29f5 (patch) | |
| tree | f0348e3831698baed6cc122972b8239bd155ecdf /arch/arm | |
| parent | aec9562f3db8ece218125042e0b2b7ac5b7091e7 (diff) | |
ARM: 6092/1: atmel_serial: support for RS485 communications
Final version of the patch that adds support for RS485 communications to the atmel_serial driver.
The patch has been already sent and discussed on both linux-kernel and linux-arm-kernel mailing lists several times.
Many people collaborated to improve and test the code:
Tested-by: Sebastian Heutling <Sebastian.Heutling@who-ing.de>
Tested-by: Bernhard Roth <br@pwrnet.de>
Reviewed-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Signed-off-by: Michael Trimarchi <michael@evidence.eu.com>
Signed-off-by: Rick Bronson <rick@efn.org>
Signed-off-by: Sebastian Heutling <Sebastian.Heutling@who-ing.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/ioctls.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-at91/include/mach/board.h | 8 |
2 files changed, 8 insertions, 3 deletions
diff --git a/arch/arm/include/asm/ioctls.h b/arch/arm/include/asm/ioctls.h index a91d8a1523cf..7f0b6d13296a 100644 --- a/arch/arm/include/asm/ioctls.h +++ b/arch/arm/include/asm/ioctls.h @@ -53,6 +53,9 @@ #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ +#define TIOCGRS485 0x542E +#define TIOCSRS485 0x542F + #define FIONCLEX 0x5450 /* these numbers need to be adjusted. */ #define FIOCLEX 0x5451 #define FIOASYNC 0x5452 diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h index ceaec6c16eb2..df2ed848c9f8 100644 --- a/arch/arm/mach-at91/include/mach/board.h +++ b/arch/arm/mach-at91/include/mach/board.h @@ -39,6 +39,7 @@ #include <linux/usb/atmel_usba_udc.h> #include <linux/atmel-mci.h> #include <sound/atmel-ac97c.h> +#include <linux/serial.h> /* USB Device */ struct at91_udc_data { @@ -143,9 +144,10 @@ extern struct platform_device *atmel_default_console_device; extern void __init __deprecated at91_init_serial(struct at91_uart_config *config); struct atmel_uart_data { - short use_dma_tx; /* use transmit DMA? */ - short use_dma_rx; /* use receive DMA? */ - void __iomem *regs; /* virtual base address, if any */ + short use_dma_tx; /* use transmit DMA? */ + short use_dma_rx; /* use receive DMA? */ + void __iomem *regs; /* virt. base address, if any */ + struct serial_rs485 rs485; /* rs485 settings */ }; extern void __init at91_add_device_serial(void); |