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White Rabbit Switch - Software
Commit 4e495868 authored by Alessandro Rubini's avatar Alessandro Rubini
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doc: documented ppsi as an alternative 

Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent 65094379
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doc/wrs-build.in
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......@@ -497,6 +497,13 @@ The following configuration options are available
@t{configs/buildroot} directory; an absolute pathname is used
unchanged.
@item CONFIG_PTP_NOPOSIX
@itemx CONFIG_PPSI
Users can select one of these options, to build with one or the other
flavour of @sc{wr-ptp}. PPSi is going to be the default, and later
the only supported option.
@end table
@c ##########################################################################
......@@ -1172,18 +1179,18 @@ switching core and the associated user-space daemon.
@node PTPd
@section PTPd
The Precision Time Protocol Daemon being used is hosted in a different
repository, but it is registered as a @i{git} submodule in this package.
The repository itself is on @code{ohwr}, like others.
We are working on a better code base for a portable PTP, but it is
not yet ready as of this release.
Configuration supports two different PTP engines: either @t{ptp-noposix}
(default at this point in time) or PPSi. The latter will become
the default choice, and then the only choice, as we test it on a larger
use base.
Both implementations are hosted in their own respective different
repository; both are registered as @i{git} submodules in this package.
The repositories are hosted on @code{ohwr}, like others.
A plain @i{make} in the @i{ptp-noposix} directory might fail, because of
A plain @i{make} in either @i{userspace/ptp-noposix} or
@t{userspace/ppsi} will likely fail, because of
missing environment variables.
because after building
@i{ptpd} other steps are tried, but they are only needed for
the freestanding environment (i.e., LM32 with supporting code) and will
fail for this @i{arm-linux} hosted build.
Additionally, the script installs headers for the HAL
and @i{libptpnetif}.
......
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