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| author | Tomasz Figa <t.figa@samsung.com> | 2015-01-23 14:47:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-02-02 10:11:26 -0800 |
| commit | b94ba0328d3b36ff95f5074c0e9b44f90dc56bb5 (patch) | |
| tree | 644790b8e5dcf1705dfb6dc6e80d352fbed9d338 /Documentation/kernel-parameters.txt | |
| parent | 8b6ff84c2d445a476be5f5493b9deac00271eedd (diff) | |
| download | lwn-b94ba0328d3b36ff95f5074c0e9b44f90dc56bb5.tar.gz lwn-b94ba0328d3b36ff95f5074c0e9b44f90dc56bb5.zip | |
serial: samsung: Add support for early console
This patch adds support for early console initialized from device tree
and kernel command line to all variants of Samsung serial driver.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
[mszyprow: added support for command line based initialization,
fixed comments, added documentation]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 4df73da11adc..e855697f54c5 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -970,6 +970,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted. smh Use ARM semihosting calls for early console. + s3c2410,<addr> + s3c2412,<addr> + s3c2440,<addr> + s3c6400,<addr> + s5pv210,<addr> + exynos4210,<addr> + Use early console provided by serial driver available + on Samsung SoCs, requires selecting proper type and + a correct base address of the selected UART port. The + serial port must already be setup and configured. + Options are not yet supported. + earlyprintk= [X86,SH,BLACKFIN,ARM,M68k] earlyprintk=vga earlyprintk=efi |