diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-05-29 15:04:31 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-06-01 06:55:13 +0900 |
| commit | 1a8d2903cb6a92ce47cfc8841951b8227c09e505 (patch) | |
| tree | ecc32f71bdbe14227ecc00272041c31566af4f03 /drivers/tty/serial/8250/Kconfig | |
| parent | 0788c39b955151d92711800ce14f41154095bfa6 (diff) | |
| download | op-kernel-dev-1a8d2903cb6a92ce47cfc8841951b8227c09e505.zip op-kernel-dev-1a8d2903cb6a92ce47cfc8841951b8227c09e505.tar.gz | |
serial: 8250_uniphier: add UniPhier serial driver
Add the driver for on-chip UART used on UniPhier SoCs.
This hardware is similar to 8250, but the register mapping is
slightly different:
- The offset to FCR, MCR is different.
- The divisor latch access bit does not exist. Instead, the
divisor latch register is available at offset 9.
This driver overrides serial_{in,out}, dl_{read,write} callbacks,
but wants to borrow most of code from 8250_core.c.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
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 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index c350703..3e1ae446 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -342,3 +342,10 @@ config SERIAL_8250_MT6577 help If you have a Mediatek based board and want to use the serial port, say Y to this option. If unsure, say N. + +config SERIAL_8250_UNIPHIER + tristate "Support for UniPhier on-chip UART" + depends on SERIAL_8250 && ARCH_UNIPHIER + help + If you have a UniPhier based board and want to use the on-chip + serial ports, say Y to this option. If unsure, say N. |
