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In recent barebox versions, nv variables are saved automatically upon reset or
kernel start (console message "nv variable modified, will save nv variables on
shutdown" warns about that). There is no need to explicitly call saveenv.
This change was introduced in 3fadbdae.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Use shell script highlighting where it is resonable, use console
highlighting for transcripts, and fix some of the few cases where the
syntax was broken, resulting in text not being rendered at all.
Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The patch fixes this sphinx error:
barebox/Documentation/user/variables.rst:79: ERROR: Error in "code-block" directive:
maximum 1 argument(s) allowed, 15 supplied.
.. code-block:: sh
barebox@Phytec phyCARD-i.MX27:/ nv dev.nand0.partitions: 4M(barebox),1M(barebox-environment),-(root)
barebox@Phytec phyCARD-i.MX27:/ devinfo nand0
Parameters:
[...]
partitions: 4M(barebox),1M(barebox-environment),8M(kernel),1011M(root)
[...]
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Non volatile device variables are used to make device parameters
persistent. They are like normal non volatile variables, but set
the values of the device parameters with the corresponding name.
Every nv variable beginning with nv.dev is a non volatile device
variable. They have the form nv.dev.<devname>.<paramname> and act
on the parameter <paramname> of the device named <devname>.
The non volatile device variables are designated for example for
video modes, ethernet device ip addresses or mtd partitioning.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This adds (back) support for non volatile variables. Non volatile
variables are variables which are stored in the environment over
reboot. They are used in the same way as the global variables, but
with a 'nv' command and device. The variables are stored under
/env/nv/, one variable per file. Adding a nv variable automatically
adds a global variable with the same name. Changing a nv variable
also changes the same global variable, but not the other way round.
This allows for example to configure the username as:
nv user=sha; saveenv
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Doc fixes such as:
* font changes
* spelling
* punctuation
* capitalization
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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I kept however the one example that directly demos the bootup on an
Efika board.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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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>
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