defaultenv-2: add automount for nfs ...

Automatically mount the path that is also used for net booting by
default to /mnt/nfs.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

defaultenv2: Add automount for RATPFS ...

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

defaultenv: boot/net: Boot initramfs from tftp if present ...

Use an 'initramfs' file if it exists instead of nfsroot. This offers the
possibility to quickly boot complete filesystems as initramfs without
the need to flash an SD-card or similar. If the initramfs does not
exist, it uses the default nfsroot mechanism.

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

login: rework login mechanism ...

We used to have the login functionality in the /env/bin/init script.
This is hard to review and it's too easy to break the login functionality
with changes to this script. Move the places to ask for a password to
C code where we have only a few places where we have to ask for a password.
Mainly these are run_shell() and the menutree command.

This patch introduces a login() function which will only return if the correct
password has been entered. Following calls will return immediately without
asking for a password again.

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

Merge branch 'for-next/misc'

defaultenv-2: init: don't call timeout again if the user intervened ...

With autoboot_timeout=0 the second 'timeout' might not get another
character even if the user keeps a key pressed. So just reuse the key from
the first call.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

defaultenv-2: mtdparts-add: Use new partition parameter ...

mtd devices now have a partition parameter to create mtd partitions.
Use it to simplify the mtdparts-add script.

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

defaultenv-2: mtdparts-add: remove unused variable ...

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

mtd: nand: remove automatically created bb devices ...

the bb devices which are created in add_mtd_device() must be removed
in del_mtd_device(). Also remove deletion of the bb devices in the
mtdparts-add environment file.

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

defaultenv: ignore barebox_zero_env ...

Since commit c4c2317fe8a2 (defaultenv: generate force-built-in
(zero) environment file), we have this generated file.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

defaultenv: generate force-built-in (zero) environment file ...

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

gitignore: move "barebox_default_env*" to subdirectory ...

"barebox_default_env*" is not "Top-level generic files" because they
are generated in the defaultenv/ directory since commit 7fa10256c3f4
(defaultenv: Allow multiple defaultenvironment overlays).

The comment block of the top-level .gitignore says as follows:

  # NOTE! Don't add files that are generated in specific
  # subdirectories here. Add them in the ".gitignore" file
  # in that subdirectory instead.

Let's follow this rule.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

defaultenv-2: Make use of nonvolatile variables ...

This moves the variable assignments previously done in /env/config-board
to non volatile variables in /env/nv/. This makes the settings adjustable
by the user without editing a file.

Most of the changes are simple conversions which for many boards makes
/env/config-board unnecessary. Some boards had some logic to assign
global.boot.default based on the current bootsource. This has been
moved to /env/init/bootsource. An additional check is added to not
overwrite a nv.boot.default should it exist.

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

defaultenv: Reorder overlay append order ...

The defaultenv_add_base() functions adds the enviroment coming from
CONFIG_DEFAULT_ENVIRONMENT_PATH. But this is not only for
traditional enviroments, but also for external enviroments in e.g. build
systems. The external enviroment should override the enviroment set
in the board file and not the other way around. Made sure that
external enviroment is always added last.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

remove unused boot-menu-add-entry ...

The boot-menu-add-entry script no longer exists. Remove it from
boot scripts.

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

Merge branch 'for-next/ifup'

mtd: nand: create bb devices automatically ...

When a mtd device can have bad blocks we want to create a
bb device, so do this automatically. This allows us to
drop bb device creation from the environment.

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

default environment: force a specific return value ...

Since commit a162dfe the ifup command runs
this file as a script. Due to a hush misbehave it could happen it returns
an error code by accident.

For example if the last instructions in this file are:

 if [ false ]; then
    echo "friesel"
 fi

the hush returns 1 after running this script instead of 0 and in this case
the ifup command fails.

I know, the correct fix would be to fix the hush, because it is a generic
issue...but how?

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

defenv-2: replace menu with menutree ...

This makes the menu easier to extend and to maintain.

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

Merge branch 'for-next/nfs' ...

Conflicts:
	defaultenv/defaultenv-2-base/bin/ifup

defaultenv: Add boot option for DFU ...

DFU is for device firmware upgrade, but for development purposes it's
sometmes useful to just start a kernel vie DFU. This adds a boot option
for doing this and also the corresponding counterpart on the host. With
this it's possible to boot a system with:

scripts/dfuboot.sh -k linuximage -d dtb -c "root=ubi0:root ubi.mtd=ubi rootfstype=ubifs ignore_loglevel"

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

defaultenv: Allow multiple defaultenvironment overlays ...

We can compile barebox for multiple boards at once, but currently
they all share a single default environment. This patch adds a
defaultenv_append() which boards can call to customize the default
environment during runtime. Each board now generate default environment
snippets using bbenv-y and add them during runtime with defaultenv_append()

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

move defaultenv-2 to defaultenv/defaultenv-2-* ...

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

move defaultenv-1 to defaultenv/defaultenv-1 ...

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

dhcp: switch to global var support ...

This way you can specify as previously set the dhcp parameter via global.dhcp.xxx
and get the result via global.dhcp.xxx

This is need for the defaultenv-2 to add the bootp suppport.
Use it on defaultenv too to have only one set of var.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

defaultenv: switch hostname to global.hostname ...

Udpate dhcp with it too.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

defaultenv: enable glovalvar support ...

This will allow to do not have 2 set of var for defaultenv and the new
defaultenv-2.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

defaultenv/bin/init: skip autoboot if $autoboot_timeout is unset ...

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

defaultenv: don't overwrite $user in config ...

This patch prooved to be useful while working with a colleague on a single
machine. It allows to switch the user without editing /env/config by
just issuing:

	export user=me

. Note, in bash this construct (i.e. an if without body) bails out with:

	Syntax error: "fi" unexpected

but in hush it seems to do the right thing.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

defaultenv: remove now unnecessary hush-hack ...

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