diff options
Diffstat (limited to 'drivers/serial/Kconfig')
| -rw-r--r-- | drivers/serial/Kconfig | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 6a44fb1dc16..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 @@ -465,20 +480,24 @@ config SERIAL_DZ bool "DECstation DZ serial driver" depends on MACH_DECSTATION && 32BIT select SERIAL_CORE - help - DZ11-family serial controllers for VAXstations, including the - DC7085, M7814, and M7819. + default y + ---help--- + DZ11-family serial controllers for DECstations and VAXstations, + including the DC7085, M7814, and M7819. config SERIAL_DZ_CONSOLE bool "Support console on DECstation DZ serial driver" depends on SERIAL_DZ=y select SERIAL_CORE_CONSOLE - help + default y + ---help--- If you say Y here, it will be possible to use a serial port as the system console (the system console is the device which receives all kernel messages and warnings and which allows logins in single user - mode). Note that the firmware uses ttyS0 as the serial console on - the Maxine and ttyS2 on the others. + mode). + + Note that the firmware uses ttyS3 as the serial console on + DECstations that use this driver. If unsure, say Y. @@ -1138,17 +1157,17 @@ config SERIAL_SGI_L1_CONSOLE say Y. Otherwise, say N. config SERIAL_MPC52xx - tristate "Freescale MPC52xx family PSC serial support" - depends on PPC_MPC52xx + tristate "Freescale MPC52xx/MPC512x family PSC serial support" + depends on PPC_MPC52xx || PPC_MPC512x select SERIAL_CORE help - This drivers support the MPC52xx PSC serial ports. If you would - like to use them, you must answer Y or M to this option. Not that + This driver supports MPC52xx and MPC512x PSC serial ports. If you would + like to use them, you must answer Y or M to this option. Note that for use as console, it must be included in kernel and not as a module. config SERIAL_MPC52xx_CONSOLE - bool "Console on a Freescale MPC52xx family PSC serial port" + bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port" depends on SERIAL_MPC52xx=y select SERIAL_CORE_CONSOLE help @@ -1156,7 +1175,7 @@ config SERIAL_MPC52xx_CONSOLE of the Freescale MPC52xx family as a console. config SERIAL_MPC52xx_CONSOLE_BAUD - int "Freescale MPC52xx family PSC serial port baud" + int "Freescale MPC52xx/MPC512x family PSC serial port baud" depends on SERIAL_MPC52xx_CONSOLE=y default "9600" help |