common: add dependency !SANDBOX on target tools ...

The build of target tools fails on sandbox architecture.
We don't need any target tools in this case, so add a dependency.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

blspec: fix documention of blspec_scan_directory's return code ...

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

Merge branch 'for-next/rpi'

Merge branch 'for-next/bootspec'

dlmalloc: fix compiler warning ...

This patch fix a compiler warning while building sandbox barebox with
gcc version 4.8.2.

common/dlmalloc.c: In function ‘barebox_calloc’:
common/dlmalloc.c:1756:2: warning: ISO C90 forbids mixed declarations
and code [-Wdeclaration-after-statement]
  void *mem = malloc(sz);
  ^

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: Add a context pointer to fixup functions ...

If drivers want to fixup their specific instance they need some context
to know which instance they have to fixup.

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

blspec: Make error message more clear ...

"Nothing found on" is a bit unspecific. Make clear that no
bootspec entry is found.

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

blspec: make cdev optional ...

the cdev for a given directory can be determined by get_cdev_by_mountpath().
Use this function and remove the cdev argument from blspec_scan_directory().
Also, export the function to make code possible which boots the bootloader
spec entries found in directories.

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

blspec: Let scan functions return the number of entries found ...

So that callers can detect whether entries are found or not.

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

blspec: Allow to boot partitions ...

Instead of only allowing complete devices we now also allow single
partitions to look for bootloader spec entries.

Normally the bootloader spec defines a way to find a partition containing /boot
on a device.  On embedded systems it's often useful instead to have only a
single partition image which contains both the kernel and the root filesystems.
This partition image may be written to the device multiple times. With this
patch they can be booted with 'boot emmc0.<partno>'

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

blspec: rename _hwdevice functions to _devicename ...

Since it's not necessarily the hardware device this seems to
be a more appropriate name.

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

blspec: Push device_detect into blspec_scan_device ...

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

calloc: Fix possible memory leak ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

blspec: Fix once/default booting ...

The default/once files contain the full path to the entries, not
only the filename. This fixes booting the once and default entries.

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

common: fix possible build problem without password support ...

In the case where CONFIG_PASSWORD is off, CONFIG_PASSWORD_DEFAULT is
undefined. As undefined is not "", this causes make to call find -type f.
If there is a filename containing a :, make will complain about having
"multiple target patterns"

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

add kernel-install tool for bootloader Spec ...

This adds a tool for installing kernels according to the bootloader
spec. systemd already has a similar tool, but it is limited to installing
kernels on the currently running system. The barebox kernel-install
tool instead can also be used to install kernels on removable media on a
development host for cross development. It is compiled in two variants,
as 'kernel-install' for the host and as 'kernel-install-target' using
$CROSS_COMPILE.

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

Implement bootloader spec support for barebox ...

The Bootloader Specification describes a way how kernels can
be installed on devices and how they can be started by the bootloader.

The bootloader spec is currently supported by (x86) gummiboot and
by systemd which provides a kernel-install script. With the bootloader
spec it's possible for the Operating system to install a new kernel
without knowing about the bootloader and for the bootloader it's possible
to discover and start Operating Systems on a media without being
configured.

For more details about the spec see:

http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec/

This patch adds barebox support for the spec. It enhances the 'boot'
command so that not only boot script names can be given, but also
devices containing bootloader spec entries. With this it's possible
to call the 'boot' command like: 'boot sd emmc net'. It would then
first look for bootloader spec entries on the (removable) sd card,
then, is nothing is found, on the internal emmc and if still
unsuccessful would call the 'net' bootscript.

The bootloader Spec currently doesn't specify which entry should be
default if multiple entries are found on a single device. Therefore
barebox currently has two extensions of the spec. The $BOOT diretory
can contain a file named 'default'. If present, the content of the
file is treated as a filename under $BOOT/loader/entries/ which is
used as default. Similarly if a file named 'once' is present, the
entry is started once and the file is removed afterwards. This is
useful for testing if a newly installed kernel works before making
it the default.

As on ARM and other Architectures a devicetree has to be specified
for the kernel, the 'devicetree' property is used to specify a
devicetree. Like 'kernel' and 'initrd' this also contains a pth
relative to $BOOT.

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

cdev: store dos partition type in struct cdev ...

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

Merge branch 'for-next/rs485' ...

Conflicts:
	common/console_common.c

Merge branch 'for-next/mount'

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

Conflicts:
	commands/Makefile

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

Conflicts:
	include/console.h

Merge branch 'for-next/console'

Merge branch 'for-next/bpkfs'

bootm: Replace getenv_loadaddr with getenv_ul ...

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

filetype: add Binary PacKage BPK type ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

console: factorise function to get the first enabled console ...

rename it to console_get_first_active

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

environment variables: introduce new helpers ...

This introduces some new environment variable helpers and updates
the existing ones. Newly introduced are:

getenv_bool: read a bool variable
getenv_ul: read an unsigned long variable
getenev_uint: read an unsigned int variable
getenv_nonempty: like normal getenv, but does return NULL instead of an
                 empty string

All new helpers take a pointer to the value. This value is only modified
when the variable exists. This allows the following programming scheme:

	unsigned int myvalue = sanedefault;

	getenv_uint("myvalue", &myvalue);

So without checking the return value myvalue contains the best possible
value.

getenv_ull is updated to this scheme.

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

block: Collect block devices on list ...

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

defenv-2: replace boot script with command ...

This replaces the 'boot' script in the defaultenv-2 with a command
with the same behaviour. A command gives more flexibility for future
externsions

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