diff options
| author | Magnus Damm <damm@opensource.se> | 2012-05-03 16:13:09 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-05 03:45:07 +0400 |
| commit | 22886ee96895b7a9f9d06da4dc9420b61b4ef1f7 (patch) | |
| tree | ce6a442c280827b21da66c771aaec9a4e8613193 /drivers/tty/serial/8250/Kconfig | |
| parent | 8b979f7c6bf13a57e7b6002f1175312a44773960 (diff) | |
| download | linux-22886ee96895b7a9f9d06da4dc9420b61b4ef1f7.tar.xz | |
serial8250-em: Emma Mobile UART driver V2
This is V2 of the Emma Mobile 8250 platform driver.
The hardware itself has according to the data sheet
up to 64 byte FIFOs but at this point we only make
use of the 16550 compatible mode.
To support this piece of hardware the common UART
registers need to be remapped, and the access size
differences need to be handled.
The DLL and DLM registers can due to offset collision
not be remapped easily, and because of that this
driver makes use of ->dl_read() and ->dl_write()
callbacks. This in turn requires a registration
function that takes 8250-specific paramenters.
Future potential enhancements include DT support,
early platform driver console and fine grained PM.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Alan Cox <alan@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/Kconfig')
| -rw-r--r-- | drivers/tty/serial/8250/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index 591f8018e7dd..8bc7ecbf6bea 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -278,3 +278,11 @@ config SERIAL_8250_DW help Selecting this option will enable handling of the extra features present in the Synopsys DesignWare APB UART. + +config SERIAL_8250_EM + tristate "Support for Emma Mobile intergrated serial port" + depends on SERIAL_8250 && ARM && HAVE_CLK + help + Selecting this option will add support for the integrated serial + port hardware found on the Emma Mobile line of processors. + If unsure, say N. |