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authorWilson Ding <dingwei@marvell.com>2016-02-16 19:14:53 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-03-08 01:11:14 +0100
commit30530791a7a032dc27dbbab56b8afabd5138074c (patch)
treed1a5505aea2f2b173e841cf34a6b3471db38e615 /Documentation/kernel-parameters.txt
parentserial: mctrl_gpio: Add missing module license (diff)
downloadlinux-30530791a7a032dc27dbbab56b8afabd5138074c.tar.xz
linux-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.txt6
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