diff options
| author | Martin Sperl <kernel@martin.sperl.org> | 2016-01-17 15:15:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-07 10:13:30 +0300 |
| commit | bdc5f300958062a766518b81d5378f837149d5c1 (patch) | |
| tree | 1ee51fc232c44c27788afbafdd1801e5a4b43dea /drivers/tty/serial/8250/Makefile | |
| parent | 45d7e9a51c995b4732eeecc121f40798e2220bea (diff) | |
| download | linux-bdc5f300958062a766518b81d5378f837149d5c1.tar.xz | |
serial: bcm2835: add driver for bcm2835-aux-uart
The bcm2835 SOC contains an auxiliary uart, which is very close
to the ns16550 with some differences.
The big difference is that the uart HW is not using an internal divider
of 16 but 8, which results in an effictive baud-rate being twice
the requested baud-rate.
This driver handles this device correctly and handles the difference in
the HW divider by scaling up the clock by a factor of 2.
The approach to write a separate (wrapper) driver instead of using a
multiplying clock and "ns16550" as compatibility in the device-tree
has been recommended by Stephen Warren.
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/Makefile')
| -rw-r--r-- | drivers/tty/serial/8250/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile index b9b9bca5b6c3..5c1869fdfd4c 100644 --- a/drivers/tty/serial/8250/Makefile +++ b/drivers/tty/serial/8250/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_SERIAL_8250_PCI) += 8250_pci.o obj-$(CONFIG_SERIAL_8250_HP300) += 8250_hp300.o obj-$(CONFIG_SERIAL_8250_CS) += serial_cs.o obj-$(CONFIG_SERIAL_8250_ACORN) += 8250_acorn.o +obj-$(CONFIG_SERIAL_8250_BCM2835AUX) += 8250_bcm2835aux.o obj-$(CONFIG_SERIAL_8250_CONSOLE) += 8250_early.o obj-$(CONFIG_SERIAL_8250_FOURPORT) += 8250_fourport.o obj-$(CONFIG_SERIAL_8250_ACCENT) += 8250_accent.o |