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| author | Wilson Ding <dingwei@marvell.com> | 2016-02-16 19:14:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-07 16:11:14 -0800 |
| commit | 30530791a7a032dc27dbbab56b8afabd5138074c (patch) | |
| tree | d1a5505aea2f2b173e841cf34a6b3471db38e615 /Documentation/kernel-parameters.txt | |
| parent | 82a3f87f6e80e0bf7978152021eb8938976721cb (diff) | |
| download | lwn-30530791a7a032dc27dbbab56b8afabd5138074c.tar.gz lwn-30530791a7a032dc27dbbab56b8afabd5138074c.zip | |
serial: mvebu-uart: initial support for Armada-3700 serial port
Armada-3700's uart is a simple serial port, which doesn't
support. Configuring the modem control lines. The uart port has a 32
bytes Tx FIFO and a 64 bytes Rx FIFO
The uart driver implements the uart core operations. It also support the
system (early) console based on Armada-3700's serial port.
Known Issue:
The uart driver currently doesn't support clock programming, which means
the baud-rate stays with the default value configured by the bootloader
at boot time
[gregory.clement@free-electrons.com: Rewrite many part which are too long
to enumerate]
Signed-off-by: Wilson Ding <dingwei@marvell.com>
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 9a53c929f017..1ffa9dba13fd 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1058,6 +1058,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. A valid base address must be provided, and the serial port must already be setup and configured. + armada3700_uart,<addr> + Start an early, polled-mode console on the + Armada 3700 serial port at the specified + address. The serial port must already be setup + and configured. Options are not yet supported. + earlyprintk= [X86,SH,BLACKFIN,ARM,M68k] earlyprintk=vga earlyprintk=efi |