Documentation: improve network boot section ...

Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

bootm: Optionally add a root= option to Kernel command line ...

It becomes a common case that the Kernel is loaded from the filesystem
which later becomes the rootfs. This adds a possibility to let bootm
automatically append the root= option to the kernel command line. This
is done when global.bootm.appendroot is true.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: booting linux: improve wording ...

'bootm' is the lowlevel boot command, in contrast to 'boot', which is
more highlevel.

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

nfs: forward filesystem options to the kernel command line ...

Using NFS in conjunction with boot spec and the feature to let Barebox
auto generate a kernel command line must keep the options the NFS filesystem
was mounted in Barebox. This patch extends the kernel command line parameter
on demand if something different than the defaults are used.

The command:

barebox:/ boot nfs://myhost//root

expands to the kernel command line:

nfsroot=myhost:/root,v3,tcp

while the command:

barebox:/ boot nfs://myhost:2049//root

expands now to the kernel command line:

nfsroot=myhost:/root,v3,tcp,mountport=2049,port=2049

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

blspec: Automatically append rootarg ...

This patch makes it possible to automatically add a suitable root= option
for booting Linux from the same filesystem on which the bootspec entry
has been found. This adds an additional 'linux-appendroot' option to
bootspec which if set to 'true' will cause barebox to automatically
add a root= option. This currently works for NFS, UBIFS and regular
block devices like ATA, SD/MMC using the root=PARTUUID= mechanism.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

Documentation: blspec: Document blspec over NFS ...

We support booting blspec entries found on NFS servers, add documentation
for it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: blspec: Fix typo ...

The device index is missing in the example, add it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: booting linux: improve doc text ...

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: booting-linux: Fix wrong variable name ...

All variables starting with global.linux.bootargs. are concatemated
to bootargs, not global.bootargs. .

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Fix spelling: pathes -> paths ...

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

doc: add colon after NOTE and HINT ...

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

doc: start (almost) all headlines with a capital ...

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: Add new sphinxs docs ...

This is a rewrite of the Documentation in reStructuredText format using
Sphinx as build system, see http://sphinx-doc.org/.

The documentation is built into static html pages with 'make docs'.
The pages can be found under Documentation/html after building.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>