diff options
Diffstat (limited to 'drivers/serial/Kconfig')
| -rw-r--r-- | drivers/serial/Kconfig | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 84a054d7e98..b82595cf13e 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -380,6 +380,21 @@ config SERIAL_ATMEL_CONSOLE console is the device which receives all kernel messages and warnings and which allows logins in single user mode). +config SERIAL_ATMEL_PDC + bool "Support DMA transfers on AT91 / AT32 serial port" + depends on SERIAL_ATMEL + default y + help + Say Y here if you wish to use the PDC to do DMA transfers to + and from the Atmel AT91 / AT32 serial port. In order to + actually use DMA transfers, make sure that the use_dma_tx + and use_dma_rx members in the atmel_uart_data struct is set + appropriately for each port. + + Note that break and error handling currently doesn't work + properly when DMA is enabled. Make sure that ports where + this matters don't use DMA. + config SERIAL_ATMEL_TTYAT bool "Install as device ttyATn instead of ttySn" depends on SERIAL_ATMEL=y |