When libfdt-devel is installed system-wide, the build of U-Boot host
programs currently fails with lots of:
HOSTCC tools/aisimage.o
In file included from tools/../include/../lib/libfdt/libfdt.h:10:0,
from tools/../include/libfdt.h:1,
from tools/fdt_host.h:11,
from tools/imagetool.h:24,
from tools/aisimage.c:8:
/usr/include/libfdt_env.h:70:30: error: conflicting types for ‘fdt64_t’
typedef uint64_t FDT_BITWISE fdt64_t;
^~~~~~~
In file included from <command-line>:0:0:
././include/libfdt_env.h:19:16: note: previous declaration of ‘fdt64_t’ was here
typedef __be64 fdt64_t;
^~~~~~~
In file included from ././include/libfdt_env.h:12:0,
from <command-line>:0:
/usr/include/libfdt_env.h:90:24: error: expected ‘)’ before ‘x’
static inline uint32_t fdt32_to_cpu(fdt32_t x)
^
This commit adds a fixup in the U-Boot code to fix this problem. The
fixup is equivalent to applying upstream commit
http://git.denx.de/?p=u-boot.git;a=commitdiff;h=e0d20dc1521e74b82dbd69be53a048847798a90a,
but we can't use a patch for the uboot package, since people are using
arbitrary versions.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Commit baae5156ce (uboot: use local fdt headers) changed the uboot logic
to pass the host include directories with -idirafter instead of -I, so
include files local to u-boot would be preferred over host includes.
This unfortunately breaks configurations using
BR2_TARGET_UBOOT_NEEDS_OPENSSL on hosts with incompatible openssl headers
installed in the system default include directories as explained here:
http://lists.busybox.net/pipermail/buildroot/2018-March/214651.html
The problem is that -idirafter directories gets added to the very end of the
search order, AFTER the system default directories.
Instead use -isystem which causes the directories to be added after -I but
before the system default directories. With this in place, the include
directories of u-boot will first be scanned, followed by the host includes
and finally the system default include directories.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This reverts commit 3a6573ccee.
It is no longer necessary after solving the problem differently.
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
After commit b8c3e94173 ("package/dtc: qemu system build need libfdt")
changed the dtc install target from 'install-bin' to 'install', uboot
compilation failures occurred because libfdt related headers were now
suddenly taken from output/host/include rather than from the uboot sources
itself.
Commit 3a6573ccee ("uboot: use local libfdt.h") solved this by patching
one specific uboot source file, tools/fdtgrep.c, to replace '<...>'-style
includes by '"..."'-style includes.
However, depending on the uboot version, this may not be enough: there may
be other references to fdt header files. In particular taking into account
that it is not uncommon to have vendor-provided uboot trees which have
custom changes.
The root of the problem is that the uboot.mk file passes the host compiler
as follows:
UBOOT_MAKE_OPTS += \
...
HOSTCC="$(HOSTCC) $(HOST_CFLAGS)" \
...
where HOST_CFLAGS contains the string '-I$(HOST_DIR)/include'
The uboot makefiles then use constructs of the form:
$(CC) $(CPPFLAGS) $(CFLAGS) .....
where CPPFLAGS may contain -I references pointing to local directories.
On the expanded compiler command-line, Buildroot's '-I$(HOST_DIR)/include'
is thus present _before_ any -I to local directories, and thus takes
precedence. And that becomes a problem for header files present both
locally as in the Buildroot host directory, which is the case for libfdt.
To fix this problem without having to patch u-boot sources, use '-idirafter'
rather than '-I' to pass the Buildroot host include directory. '-idirafter'
is basically the same thing, but adds the specified directory at the end
of the include precedence chain, rather than at the beginning.
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Since 0542bb79e8 (uboot: Support multiple environment source files),
missing user-supplied environment source files is no longer detected.
This is because we cat them all, and feed the concatenation to the stdin
of mkenvimage. So, if one source file is missing, the cat exits in error,
but the compound command exits with the exit code of the last command,
which is that of mkenvimage, which happens to be happy with whatever it
is fed on its stdin, even is empty.
We fix that by creating a temporary file, that we even leave afterward
for the user to inspect.
We also move it out of the _CMDS block and into a macro of its own, so
that it is easier to write and maintain.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Cam Hutchison <camh@xdna.net>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some ARM64 platforms (such as Allwinner A64/H5) have a boot process
where U-Boot encapsulates the BL31 part of the ARM trusted
firmware. For such platforms, we need to build ATF before U-Boot, and
pass a BL31 variable pointing to ATF bl31.bin to the U-Boot build
process.
This commit introduces a BR2_TARGET_UBOOT_NEEDS_ATF_BL31 variable to
achieve this.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
[Thomas:
- Rename option to BR2_TARGET_UBOOT_NEEDS_ATF_BL31
- Drop changes to arm-trusted-firmware.mk, they are taken care of by
previous commits.
- Improve Config.in help text
- Add missing dependency on arm-trusted-firmware when
BR2_TARGET_UBOOT_NEEDS_ATF_BL31 is enabled.
- Use bl31.bin from $(BINARIES_DIR) instead of taking it from ATF's
build dir.]
[Peter: depend on toplevel atf option and select bl31 option. Ensure it
cannot be enabled together with ARM_TRUSTED_FIRMWARE_UBOOT_AS_BL33
as that would cause circular dependencies]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Since the BR2_TARGET_UBOOT_SPL_NAME option accepts a space-separated
list of binaries, the same option can be reuses for TPL binaries as
well. This commit updates the string and help text to indicate that
the same option can be used for SPL and TPL.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Use of libfdt.h by u-boot is currently using
the <system-path>.
Jan submitted the following upstream
https://patchwork.ozlabs.org/patch/833760/
Resolves a failure like this one observed on uboot-tools
http://autobuild.buildroot.net/results/347cde4b5c0e6ca76d354396385be4ec1294da73
[Peter: only sed if file exists]
CC: Jan Kundrát <jan.kundrat@cesnet.cz>
CC: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
U-Boot nowadays also uses kconfig, so we can handle config fragments like we
do for barebox/busybox/linux.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Add a new config option BR2_TARGET_UBOOT_NEEDS_PYLIBFDT for U-Boot
targets, like sunxi, needing the Python libfdt library.
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
[Thomas: drop bogus selects on BR2_PACKAGE_HOST_{PYTHON,SWIG}.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Xtensa core configuration must be added to U-Boot before it can be
built for that xtensa CPU variant. Extract configuration files from the
xtensa overlay as is done for other packages that need to be configured
for a specific xtensa core.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since things are no longer installed in $(HOST_DIR)/usr, the callers
should also not refer to it.
This is a mechanical change with
git grep -l '$(HOST_DIR)/usr/bin' | xargs sed -i 's%$(HOST_DIR)/usr/bin%$(HOST_DIR)/bin%g'
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
More and more of our defconfigs need to generate a U-Boot boot
script. It's a simple call to mkimage, but we already have 12
instances of this logic in board/, and there are patch series waiting
in patchwork adding 3 more boards that need this.
So let's add an option in the U-Boot package to generate such a boot
script image easily.
Note that we assume a single script needs to be generated, and the
output file name is boot.scr. The only platform for which it seems to
not be the case are the Boundary Devices platforms: they generate two
boot scripts, 6x_bootscript and 6x_upgrade, but they are anyway
installed inside TARGET_DIR, not BINARIES_DIR.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Instead of excluding the hash specifically for the custom tarball and
custom version cases, exclude it always except in the one case where
we do have a hash: the latest version.
This simplifies the code a little because soon we will add hash checks
for git as well, so we also need an exclusion in that case.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The warning currently reads:
No board defconfig name specified, check your
BR2_TARGET_UBOOT_DEFCONFIG setting.
It should read:
No board defconfig name specified, check your
BR2_TARGET_UBOOT_BOARD_DEFCONFIG setting.
Signed-off-by: Christian Stewart <christian@paral.in>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We need to avoid failing of copy of custom dts using cp -f <>
command. So, just qstrip the variable as is done for other
configuration options.
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Tested-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Similaly to Linux, this patch adds the ability to copy in and build
out-of-source device tree sources during a U-Boot build.
Signed-off-by: James Balean <james@balean.com.au>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We want to use SPDX identifier for license strings as much as possible.
SPDX short identifier for GPLv2/GPLv2+ is GPL-2.0/GPL-2.0+.
This change is done by using following command.
find . -name "*.mk" | xargs sed -ri '/LICENSE( )?[\+:]?=/s/\<GPLv2\>/GPL-2.0/g'
Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
SPL is the name used for spl on i.MX6, so update the same on
BR2_TARGET_UBOOT_SPL_NAME help text.
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
[Thomas: rewrap Config.in help text.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
On older SoCFPGA SoCs, there was not enough SRAM to fit the entire
U-Boot, so a SPL model was used. The SPL was therefore the binary that
had to be "prepared" to be loaded by the ROM code using the mkpimage
tool.
With newer SoCFPGA SoCs, there is enough SRAM to fit the entire U-Boot,
and therefore the ROM code directly loads U-Boot. In this case, it's the
real U-Boot image (not the SPL) that needs to be prepared using
mkpimage.
This code adds support for the newer SoCFPGA SoCs, by adjusting the
mkpimage related logic to apply on the SPL if an SPL is enabled, or on
the full U-Boot image otherwise.
Signed-off-by: Lionel Flandrin <lionel@svkt.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Commit 3e3fef39e7 added new and improved
patch handling, with BR2_TARGET_UBOOT_PATCH. This was in addition to
the existing BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR option, that only
handled directories.
Later, commit 21b25d28fc moved the old
BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR to legacy options. But on the way,
bad things happened:
* The original option was a string, while the one added to Config.in.legacy
is a bool. This results in a warning from defconfigs that actually define
the old BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR (because a string is not a valid
value for a bool), but it does not result in the legacy option being
selected. Consequently, BR2_LEGACY is not selected either.
* The advice at the top of Config.in.legacy to add a hidden WRAP option
to select BR2_LEGACY was not heeded.
* The advice at the top of Config.in.legacy to use the old string
option as the default for the new string option was not heeded. In
this case, the variable was not just renamed, as the old option
supported directories only, while the new one supports files too.
But since the old option is a subset of the new option, it can still
be used to set a useful default.
So, this mod turns the legacy option back to a string, adds a hidden
bool WRAP option to set BR2_LEGACY when the string is non emoty, and
uses the legacy option to set the default for the new option.
Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
When generating the environment image the target endianess should
be taken in account for CRC calculation purposes. For big endian
targets the -b flag should be passed to the mkenvimage tool.
Signed-off-by: Tiago Brusamarello <tiago.brusamarello@datacom.ind.br>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Expose the Kconfig-related help commands when U-Boot uses the Kconfig
configuration. Like others (like Linux, barebox, busybox), only expose
menuconfig, not all the configurators.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some U-Boot board configurations have CONFIG_FIT_SIGNATURE=y. In this
case, when U-Boot builds its tools, it requires OpenSSL support on the
host system.
Since we clearly don't want to unconditionally depend on host-openssl,
we introduce a new option to explicitly enable the dependency on
host-openssl. This is exactly identical to the existing
BR2_TARGET_UBOOT_NEEDS_DTC, for the dependency on host-dtc. It is
therefore the responsibility of the user to enable this option if his
board configuration uses CONFIG_FIT_SIGNATURE=y.
Necessary to fix bug #9316.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since commit fad58cefa4 ("boot/uboot: allow to build multiple U-Boot
images") the installation of SPL binary fails.
For example, when building the mx6cubox_defconfig target we see:
LD u-boot
OBJCOPY u-boot-nodtb.bin
COPY u-boot.bin
MKIMAGE u-boot.img
>>> uboot 2016.09.01 Installing to target
>>> uboot 2016.09.01 Installing to images directory
cp -dpf /home/fabio/buildroot/output/build/uboot-2016.09.01/u-boot.bin /home/fabio/buildroot/output/images/
cp -dpf /home/fabio/buildroot/output/build/uboot-2016.09.01/u-boot.img /home/fabio/buildroot/output/images/
cp -dpf /home/fabio/buildroot/output/build/uboot-2016.09.01/SPL /home/fabio/buildroot/output/images/
cp: cannot stat '/home/fabio/buildroot/output/build/uboot-2016.09.01/SPL': No such file or directory
Instead of calling 'make all' only for the BR2_TARGET_UBOOT_FORMAT_DTB_IMG
case, call 'make all' unconditionally so that the SPL target can also
be installed.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
With newer ARC toolchain obsolete -marcXXX were finally deperecated
and so compiler throws errors now about unknown option.
Solution is as simple as switching to more generic -mcu-XXX
options. Which we do. Unfortunately that change in upstream U-Boot [1]
happened right after v2016.09 was released an so we need to have that fix
for v2016.07 which is mentioned in axs10x defconfigs and for the latest
U-Boot release v2016.09 (which is selected by default if no defconfig is
used).
Once we deprecate either U-Boot version in U-Boot corresponding patch
should be removed essentially.
[1] http://git.denx.de/?p=u-boot.git;a=commit;h=7c8d81605302e7d7fdd3e7d8eb69302bddc64a2c
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: handle the U-Boot bump to 2016.09.01.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016.09.01 is a bugfix release, so bump to this version.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Sometimes it is desired to build multiple U-boot images. E.g. one to
save into flash memory and one for serial load. So far this was not
possible.
This change allows to select any combination of the target formats. They
are all copied to the image folder.
Signed-off-by: Petr Kulhavy <brain@jikos.cz>
[Thomas:
- Handle the BR2_TARGET_UBOOT_FORMAT_BIN, which wasn't handled, and
therefore u-boot.bin was not copied when
BR2_TARGET_UBOOT_FORMAT_BIN=y.
- Rename UBOOT_BIN to UBOOT_BINS, since it can now contain multiple
values.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
There was a typo in commit
b05ff12b6c ("uboot: install multiple spl
images"), leading to a missing closing parenthesis. This commit fixes
this typo.
Fixes bug #9086
Reported-by: Jebodiah Sensai <dkaplan65@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
For some platforms, there are multiple generated spl images. Extend
BR2_TARGET_UBOOT_SPL_NAME to allow these multiple images to be installed
after uboot build completes.
For example, the NextThingCo C.H.I.P. uses two binaries from uboot,
spl/sunxi-spl.bin and spl/sunxi-spl-with-ecc.bin.
Signed-off-by: Jason Abele <jason@nextthing.co>
[Maxime:
- Add foreach loop for general case and mkpimage
- Use firstword for zynq case]
Signe-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since commit 0dca644e44 ("boot/uboot: fix
missing host-openssl for i.MX28 target"), we pass HOSTCFLAGS/HOSTLDFLAGS
in the environment of U-Boot when building. This is needed to allow
U-Boot to find the OpenSSL headers/libraries when they are
needed. Unfortunately, this breaks the build with old U-Boot versions as
the U-Boot Makefiles were not designed to have HOSTCFLAGS passed in,
which causes some important CFLAGS from the U-Boot build system to be
ignored.
As suggested by Arnout, we pass the HOST_CFLAGS inside HOSTCC directly,
which allows to pass the CFLAGS without overriding the internal U-Boot
CFLAGS.
Tested with an old U-Boot (2012.10), and a modern U-Boot in a
configuration that needs OpenSSL.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
By default position independent executables (PIE) are generated
when building U-Boot elf target. MetaWare debugger doesn't support
PIE (position-independent executable).
In order to allow MDB load and run U-Boot elf, we need to do a
special trick, called "mdbtrick".
This special build target is used to fake generated U-Boot elf by:
1. Reset PIE flag in ELF header
2. Strip all debug information from elf
Signed-off-by: Zakharov Vlad <vzakhar@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Allow multiple file names to be listed in
BR2_TARGET_UBOOT_ENVIMAGE_SOURCE, concatenating them in the order
listed.
This allows the bulk of the environment to be shared across multiple
boards using a common environment file with board-specific values
supplied in a secondary environment source file.
Signed-off-by: Cam Hutchison <camh@xdna.net>
[Thomas: adjust indentation in the .mk file.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Building an U-Boot image for the i.MX23 or i.MX28 target requires to run the
bootloaders 'mxsimage' tool on the host. As mxsimage needs unconditionally
OpenSSL, building U-Boot for those targets fails if it is not available on
the host:
tools/mxsimage.c:18:25: fatal error: openssl/evp.h: No such file or directory
#include <openssl/evp.h>
Add the required dependency 'host-openssl' to all the different U-Boot image
types used to build a bootloader image for an i.MX23/i.MX28 target.
Also pass HOST_CFLAGS and HOST_LDFLAGS to the U-Boot build process so the right
-I/-L options will be used to find OpenSSL.
Ported from the Armadeus project:
https://sourceforge.net/p/armadeus/mailman/message/33595402/
Signed-off-by: Julien Boibessot <julien.boibessot@armadeus.com>
[Jörg: port to recent Buildroot version]
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
u-boot-dtb.img only gets built by default (all target) if
CONFIG_OF_SEPARATE _AND_ CONFIG_SPL_FRAMEWORK are enabled.
Certain SoCs (E.G. Action Semi S500) use a proprietary first level
bootloader instead of u-boot SPL, but still use u-boot-dtb.img as the first
level bootloader parses the uImage header for size/loadaddr.
Ensure u-boot-dtb.img gets built if enabled by explicitly listing it as a
u-boot make target (next to all) to support such setups.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
[Thomas: add Altera in the option name and description, drop reference
to Go being needed and to Maxime Hadjinlian's version of mkpimage
since a C version is now used.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
It's been deprecated for a year now so remove it.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Commit 16b8e813c8 removed all remaining users
of helper function insert_define.
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
make legal-info breaks when using an older u-boot version in local.mk
with OVERRIDE_SRCDIR, due to the reorganization of license files which
happened in u-boot v2013.10.
This issue had already been fixed in Buildroot for the regular use of
old u-boot versions (non-local.mk).
This patch adds the same fix to UBOOT_POST_RSYNC_HOOKS so that it also
covers the local.mk case.
Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Commit bf2bd11321 bumped U-Boot to version
2015.10 but forgot to update the hash as well.
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
For a 64bit arm architecture, Buildroot uses arm64 terminology and
from the top-level Makefile KERNEL_ARCH is set to arm64 which is then
passed to the uboot build. This causes a compilation issue as uboot
uses the top-level system architecture as it's $(ARCH). So
arch/$(ARCH)/Makefile doesn't work with arm64 unless we adjust the
arch.
[Thomas:
- rewrap commit message text.
- simplify comment in the code.]
Signed-off-by: Ronak Desai <ronak.desai@rockwellcollins.com>
Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some U-Boot configurations require the Device Tree compiler to be
available, so we need to depend on host-dtc (example configuration:
zynq_zed).
However, we don't want to build it unconditionally, since the vast
majority of U-Boot configurations don't need it (and host-dtc itself
has a bunch of dependencies).
So, we simply add a Config.in option that allows users to indicate
whether their U-Boot needs DTC or not, and depend on host-dtc if this
option is enabled.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Due to recent changes in U-Boot, see
http://git.denx.de/?p=u-boot.git;a=commit;h=a26cd04920dc069fd6e91abb785426cf6c29f45f
re-creation of .config from defconfig by "make oldconfig" happened
incorrectly.
Default prompt for target selection was set as No that lead to missing platform
selection by automated scripts like that:
------------------>8------------------
"yes "" | make oldconfig" on defconfig
------------------>8------------------
And that lead to build failure:
------------------>8------------------
$ make
scripts/kconfig/conf --silentoldconfig Kconfig
CHK include/config.h
UPD include/config.h
GEN include/autoconf.mk
In file included from ./include/common.h:18:0:
include/config.h:5:22: fatal error: configs/.h: No such file or directory
#include <configs/.h>
^
compilation terminated.
scripts/Makefile.autoconf:72: recipe for target 'include/autoconf.mk' failed
make[1]: *** [include/autoconf.mk] Error 1
------------------>8------------------
This patch reverts mentioned change making possible to build U-Boot
2015.07 in Buildroot.
Note there's a probability that this particular patch won't make its way
in upstream U-Boot and better solution will be found there. But for now
we need to fix U-Boot building in Buildroot anyways.
Hopefully for the next release this patch won't be necessary.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
It's rather unclear that uboot.sb, uboot.sd and uboot.nand are
Freescale i.MX28 specific, so let's make that clear in the prompt of
each option, like we do for the Marvell-specific uboot.kwb.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
With the patchset "kconfig: turnaround into single .config"
[http://lists.denx.de/pipermail/u-boot/2015-February/205490.html]
U-Boot switched to a single .config file for board configuration. This
allows us to use the kconfig-package infrastructure.
For providing backward compatibility with older U-Boot version a user
choice between the new Kconfig and the legacy build system is
introduced.
[Thomas:
- make use of the legacy build system the default, to not break
existing configurations.
- add some comments in the code checking all the configuration
options, in order to hopefully make it a bit clearer.]
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit integrates generation of a bootable image
for Xilinx Zynq. The generation is independent on Xilinx
flow and utilizes the host-zynq-boot-bin package. The only
required step is to generate a proper U-Boot SPL (instead
of the FSBL).
The SPL generation might work when providing the working
ps7_init.c file to U-Boot. However, from U-Boot 2015.07
a set of generic ps7_init.c files is included and used to
build the U-Boot SPL for various boards. The ps7_init.c file
has been released under GNU/GPL license for this purpose.
For details, see
http://lists.denx.de/pipermail/u-boot/2015-April/210664.html
The SPL searchs for u-boot-dtb.img when booting so we
enforce using of the BR2_TARGET_UBOOT_FORMAT_DTB_IMG format.
[Thomas: remove select of BR2_PACKAGE_HOST_ZYNQ_BOOT_BIN, since this
option no longer exists.]
Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Allow to generate u-boot-dtb.img. This is the same format
as u-boot.img, however, it contains a built-in device-tree.
This file is being loaded by the U-Boot SPL.
Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Allow to generate 'u-boot.nand', Freescale i.MX28 BootStream format (.sb)
with a header for booting from NAND flash.
There are two possibilities when preparing an image writable to NAND flash:
1) The NAND was not written at all yet or the BCB (Boot Control Blocks) is
broken. In this case, the NAND image 'u-boot.nand' needs to written.
2) The NAND flash was already written with a good BCB. This applies after
'u-boot.nand' was correctly written. There is no need to write the BCB
again. In this case, the bootloader can be upgraded by writing 'u-boot.sb'.
To satisfy both cases 'u-boot.nand' as well as the make target 'u-boot.sb' are
copied to the binaries directory.
mxsboot for NAND images needs all three parameters typed in as integer values
(hex values do not work). The default values choosen are typical sizes for a
NAND flash.
For more information see:
http://www.denx-cs.de/doku/?q=m28evkrunuboot
Commit Note: This patch is based on top of
"[PATCH v2 1/2] boot/uboot: add support for i.MX28 SD format"
http://patchwork.ozlabs.org/patch/453116/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
It's been deprecated since the 2014.05 release, so a year has passed.
Add legacy info as well to raise a warning when it's used.
[Peter: Remove entire config.h fixup handling]
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
For custom tarballs, it's quite obvious we can not check hashes.
For custom versions, that's not so obvious. One might think we could
have hashes for all the official releases, but that's not possible: if
the user uses a released version of Buildroot (say 2015.05) much later
in the future, and wants to use the then-released 2038.02 U-Boot. It now
seems pretty obvious that Buildroot 2015.02 can't know the hash for
U-Boot 2038.02.
So, disable checking the hash for custom tarballs and custom versions.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Vincent Stehle <vincent.stehle@laposte.net>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Instead of manually testing MAKECMDGOALS, use the newly introduced
BR_BUILDING variable to know if we're building or not.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Users should use BR2_TARGET_UBOOT_PATCH instead.
Signed-off-by: Frank Hunleth <fhunleth@troodon-software.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The existing u-boot patch option only allowed directories to be
specified. This adds support for URLs using similar code as found
in linux/linux.mk. Local files are also handled now.
This change is useful for Intel Edison support, so that Intel's u-boot
patch can be downloaded rather than stored in the Buildroot source tree.
Signed-off-by: Frank Hunleth <fhunleth@troodon-software.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[Thomas: fix issues noticed by Arnout:
- Rewrap the linux/Config.in paragraph
- Revert the "is a toolchain dependency" -> "has a toolchain
dependency" change from pkg-generic.mk, as the original was
correct.]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Several packages have some logic to apply custom patches that existed
before the BR2_GLOBAL_PATCH_DIR mechanism: at91bootstrap,
at91bootstrap3, barebox, uboot and linux. Currently, the logic of
those packages to apply custom patches is to match
<package-name>-*.patch, which is not consistent with what we've done
for patches stored in the package directory, and for patches stored in
BR2_GLOBAL_PATCH_DIR: in such cases, we simply apply *.patch.
Therefore, for consistency reasons, this commit changes these packages
to also apply *.patch.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Allow to generate u-boot.sd, Freescale i.MX28 SB format with a header for
booting from an SD card.
U-boot includes an mxsboot tool to generate this format, starting from
v2011.12.
See u-boot doc/README.mxs (or doc/README.mx28_common before 2013.07).
[Arnout:
- Wrap Config.in help text at 72 columns.
- Remove v from U-Boot version specifier.
- Refer to different README name before 2013.07.
- Depend on host-elftosb
- Add comment to clarify sb -> sd conversion.]
Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com>
Tested-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Though U-Boot introduced a Kconfig and Kbuild build system with version
2014.10 the old build commands with <board>_config are still supported.
Tested with BR2_TARGET_UBOOT_BOARDNAME="m28evk"
Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This flag seems to be obsolete. There is no piece of code in the U-Boot source
tree referencing CONFIG_NOSOFTFLOAT.
Unfortunatly the use of this flag is not documented here. Maybe it's about this
old workaround:
http://lists.denx.de/pipermail/u-boot/2007-March/020282.html
However, this patch has been declined:
http://www.denx.de/wiki/view/U-Boot/PatchStatus?rev=1.27
Since no other configure options are used, remove also UBOOT_CONFIGURE_OPTS.
Signed-off-by: Jörg Krause <jkrause@posteo.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Remove the quotes from the BR2_TARGET_UBOOT_SPL_NAME variable.
Signed-off-by: Jörg Krause <jkrause@posteo.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Point out that the SPL name is an image name.
Signed-off-by: Jörg Krause <jkrause@posteo.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Building an SPL image depends on the board configuration. This option
does not enable the SPL build, but only copies the built SPL image to
the binary images folder. The current help text is misleading.
Signed-off-by: Jörg Krause <jkrause@posteo.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To easy up adding optional parameters when calling the
"apply-patches.sh" add and use the "APPLY_PATCHES" variable to execute
the script.
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The Buildroot coding style defines one space around make assignments and
does not align the assignment symbols.
This patch does a bulk fix of offending packages. The package
infrastructures (or more in general assignments to calculated variable
names, like $(2)_FOO) are not touched.
Alignment of line continuation characters (\) is kept as-is.
The sed command used to do this replacement is:
find * -name "*.mk" | xargs sed -i \
-e 's#^\([A-Z0-9a-z_]\+\)\s*\([?:+]\?=\)\s*$#\1 \2#'
-e 's#^\([A-Z0-9a-z_]\+\)\s*\([?:+]\?=\)\s*\([^\\]\+\)$#\1 \2 \3#'
-e 's#^\([A-Z0-9a-z_]\+\)\s*\([?:+]\?=\)\s*\([^\\ \t]\+\s*\\\)\s*$#\1 \2 \3#'
-e 's#^\([A-Z0-9a-z_]\+\)\s*\([?:+]\?=\)\(\s*\\\)#\1 \2\3#'
Brief explanation of this command:
^\([A-Z0-9a-z_]\+\) a regular variable at the beginning of the line
\([?:+]\?=\) any assignment character =, :=, ?=, +=
\([^\\]\+\) any string not containing a line continuation
\([^\\ \t]\+\s*\\\) string, optional whitespace, followed by a
line continuation character
\(\s*\\\) optional whitespace, followed by a line
continuation character
Hence, the first subexpression handles empty assignments, the second
handles regular assignments, the third handles regular assignments with
line continuation, and the fourth empty assignments with line
continuation.
This expression was tested on following test text: (initial tab not
included)
FOO = spaces before
FOO = spaces before and after
FOO = tab before
FOO = tab and spaces before
FOO = tab after
FOO = tab and spaces after
FOO = spaces and tab after
FOO = \
FOO = bar \
FOO = bar space \
FOO = \
GENIMAGE_DEPENDENCIES = host-pkgconf libconfuse
FOO += spaces before
FOO ?= spaces before and after
FOO :=
FOO =
FOO =
FOO =
FOO =
$(MAKE1) CROSS_COMPILE=$(TARGET_CROSS) -C
AT91BOOTSTRAP3_DEFCONFIG = \
AXEL_DISABLE_I18N=--i18n=0
After this bulk change, following manual fixups were done:
- fix line continuation alignment in cegui06 and spice (the sed
expression leaves the number of whitespace between the value and line
continuation character intact, but the whitespace before that could have
changed, causing misalignment.
- qt5base was reverted, as this package uses extensive alignment which
actually makes the code more readable.
Finally, the end result was manually reviewed.
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Cc: Yann E. Morin <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Ever since u-boot introduced the generic spl support in u-boot 2012.10, the
default spl output file has been spl/u-boot-spl.bin and not u-boot-spl.bin,
so use that as a more sane default value.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Following the issues reported by Jerry <g4@novadsp.com>, it appears
that there are a number of U-Boot configuration variables we are not
checking properly, leaving users with weird behavior at build time.
This commit extends the existing U-Boot checks to verify that when a
custom version, custom tarball, or custom Git or Mercurial
repositories are selected, the appropriate fields are not empty in the
configuration.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Fixes#6986
Prior to u-boot 2013.10, the GPL license text was stored in COPYING and not
Licenses/gpl-2.0.txt, breaking legal-info.
Work around it by simply copying the file from the old location to the new
if present.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Some boards are configured in u-boot to store multiple redundant copies of
the environment image in flash. For these boards, it is required to pass
the -r flag, when generating a boot environment image using mkenvimage.
Signed-off-by: Simon Dawson <spdawson@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This patch fixes the following whitespace problems in Config.in files:
- trailing whitespace
- spaces instead of tabs for indentation
- help text not indented with tab + 2 spaces
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Although the configuration options for custom repository locations and
versions are very similar between the linux and uboot packages, there are
some minor differences. This patch lines up both packages.
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Some Config.in(.host) files have constructs like:
config FOO_VERSION
string
default "1.0" if FOO_1_0
default "2.0" if FOO_2_0
default $FOO_CUSTOM_VERSION if FOO_CUSTOM
The dollar sign here is not needed and confusing, so can be removed.
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[Thomas: update to recent Buildroot, add missing dependency on
host-elftosb.]
Signed-off-by: Gary Coulbourne <bear@bears.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
On some platforms, the standard U-Boot binary is not called u-boot.bin,
but u-boot<something>.bin. This is for example the case on the
Cavium-provided u-boot, where the output file is called
u-boot_<boardname>.bin.
This patch adds a 'custom format' choice in the existing u-boot binary
format selection, where this name can be put. In the Cavium example, this
option could be set to:
BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME="u-boot-$(BR2_TARGET_UBOOT_BOARDNAME).bin"
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Add custom version option as used in the linux kernel and barebox.
This way we can easily specify newer and older version.
Remove the list of the older versions because is obsoleted
by the new custom version option that is more flexible.
Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
To match the logic we have for BR2_LINUX_KERNEL_PATCH. The user has
already specified a custom patch directory, so we don't need to be
so specific about the what file names we accept, and it becomes quite
cumbersome when a custom git version is used.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit provides configuration options to automatically generate a
binary environment image for U-Boot.
Two options are available (and mandatory):
* the location of a text file describing U-Boot environment.
* the size of the environment.
[Peter: fix Config.in indentation + typo]
Signed-off-by: Arnaud Rébillout <rebillout@syscom.ch>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Closes#5846
The $(dir ...) function leaves a slash at the end, so that the LINUX_SITE
variable for a custom tarball ends in a slash. The DOWNLOAD macro adds
another slash between SITE and SOURCE, which results in a double slash in
the download URL.
Fix this by stripping off the final slash from the _SITE in all packages that
have a custom tarball.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The patch that was included in buildroot was not the same as the final
one submitted in the mainline.
Signed-off-by: Alexandre Belloni <alexandre.belloni@piout.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
For some platforms like OMAP, a new binary format is now being used
for u-boot: u-boot.img. It is basically u-boot.bin which has been
processed with mkimage.
Signed-off-by: Nicolas Dechesne <n-dechesne@ti.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
SPL is a first stage bootloader. On pandaboard it supercedes x-loader,
and should now be used.
This patch ensures that either SPL or xloader can be selected.
A config variable has been added for the name of the SPL binary generated
during u-boot build. For most platform it is u-boot-spl.bin but not always.
It is MLO on OMAP for example.
Signed-off-by: Nicolas Dechesne <n-dechesne@ti.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Tested-by: Frank Hunleth <fhunleth@troodon-software.com>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Bump from 2012.04 to 2012.04.01
Fixes a nasty bug in the command line processing.
[Peter: keep kconfig name]
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
While upgrading the configs, it proved necessary to make more space on
the dataflash for u-boot since it grew because of relocation.
dataflash is then repartitionned to make more room for u-boot and a redundant
environment.
Signed-off-by: Alexandre Belloni <alexandre.belloni@piout.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Add support for the u-boot-nand.bin target file.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
We're using uboot-<version>-*.patch, and not u-boot-<version>-*.patch
Reported-by: Jerzy Grzegorek <jerzy.grzegorek@trzebnica.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Thanks to the pkgparentdir and pkgname functions, we can rewrite the
GENTARGETS macro in a way that avoids the need for each package to
repeat its name and the directory in which it is present.
[Peter: pkgdir->pkgparentdir]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Sub options are indented anyway, so no need for empty menus / force people
to enter sub menus to see configuration options.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
The name "patch-kernel.sh" is a bit stupid, since this script is used
to patch everything in Buildroot, not only kernel trees.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Move fw_printenv / fw_setenv options from the uboot bootloader build to
the uboot-mkimage package, and rename it to uboot-tools.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Commit a4ca959321 (u-boot: rename to uboot) forgot to change the kirkwood
format handling to look for the new variable name, breaking support.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
As the kernel and bootloaders do not use the normal BR2_PACKAGE_*
Kconfig options, their target name was not automatically added to the
global TARGETS variable. Each bootloader .mk and the linux.mk had to
add their own target manually to TARGETS, and the package
infrastructure was making tests on non-existing Kconfig variables.
This commit improves the package infrastructure so that it looks at
BR2_PACKAGE_<pkg> for packages, BR2_TARGET_<pkg> for bootloaders and
at the special BR2_LINUX_KERNEL for the linux package.
This allows to simplify a little bit the bootloaders and linux .mk
files.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This will allow to match the currently Config.in option
BR2_TARGET_UBOOT, in order to make it easy to integrate U-Boot into
the package infrastructure.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
