Update the stable/11 arm SoC IMAGE_SIZE to 3072M as build
failures were encountered due to the target filesystem
running out of space during the installkernel target.

The 3072M size is used as it is consistent with head and
stable/12 image sizes, and build failures due to a full
filesystem have been common enough to justify making the
default size the same across all supported branches in
order to avoid such surprises.

This is a direct commit to stable/11, as there are several
changes between several size bumps that are unrelated or
unnecessary in this branch.

Sponsored by: The FreeBSD Foundation

MFC r336997:

release: Restore copy of boot.scr for some board

This is not a problem for 12-CURRENT as EFI boot works but it doesn't
for 11.
While here some board arm_install_uboot also copy ubldr.bin et create
firstboot files but it's already done in arm_install_boot

Reviewed by: gjb
Differential Revision: https://reviews.freebsd.org/D16481

MFC r336598-r336600, r336721

r336598:
release: Uniform release arm image size

Create a 50m fat16 for all boards.

Reviewed by: gjb
Differential Revision: https://reviews.freebsd.org/D16238

r336599:
release: Add arm_install_boot to install the commit boot bits

This reduce the per-board arm_install_uboot to just install u-boot.
While here remove the installation of rpi.dtb and rpi2.dtb as we load
them from the UFS partition via ubldr.

Reviewed by: gjb, imp (older version)
Differential Revision: https://reviews.freebsd.org/D16239

r336600:
release: Add rpi firmware dtb and mmc overlays for RPI-B and RPI2

This is needed with new u-boot that uses the rpi-firmware dtbs.

Reviewed by: gjb
Differential Revision: https://reviews.freebsd.org/D16240

r336721:
release: Add OL_DIR forgot in r336600

Reviewed by: gjb
Differential Revision: https://reviews.freebsd.org/D16439

Approved by: gjb (for insta-mfc of r336721)

MFC r333737:

release: arm: Format FAT partition as FAT16

r332674 raised the size of the FAT partition from 2MB to 41MB for some
boards. But we format them in FAT12 and this size appears to be to big
for FAT12 and some SoC bootrom cannot cope with that.
Format the msdosfs partition as FAT16,

PR: 228285
Approved by: re (marius)

MFC r332674:
Increase the msdosfs partition size on arm SoC images where the
current size may not be sufficiently large for development and/or
testing.

PR: 227548
Sponsored by: The FreeBSD Foundation

MFC r331562 (manu):
release: arm: Copy boot.scr from ports

Latest u-boot update need u-boot script to load and start ubldr.
(See D14230 for more details)
Copy this file for our arm release on the fat partition.

MFC r325373, r325861:
r325373 (manu):
release/arm: Do not install ubldr

r325861 (manu):
release: Update u-boot and firmware file for RPI-B target.

Sponsored by: The FreeBSD Foundation

MFC r325950, r325953:
r325950:
Sort variables for consistency.

r325953:
Add general configuration files used by release/release.sh for
big-iron installation images.

Sponsored by: The FreeBSD Foundation

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

In addition to the ubldr file, also copy ubldr.bin to the
MS-DOS partition. This will help with transitioning to
a single arm/armv6 userland build which could be used for
all FreeBSD/armv6 images without UBLDR_LOADADDR being set
for each board (ultimately requiring a separate buildworld
for each currently).

Requested by: ian
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

Increase the FreeBSD/arm image sizes back to 1G for 11-CURRENT.
While 480M is sufficient for 10-STABLE, 11-CURRENT images at
this size fail due to insufficient space.

This commit is solely for the sake of getting updated snapshot
builds out, after which I'll analyze the resulting images to
figure out what a more sane value is, even if the image size
for 11-CURRENT needs to differ from 10-STABLE.

Sponsored by: The FreeBSD Foundation

Reduce the arm/armv6 image size from 1G to 480M.

Since the images are effectively mostly zeros at 1G,
reduce the size to allow installation on smaller SD
cards, such as 512Mb.

While here, stop writing the /boot.txt file on the
WANDBOARD, which isn't used anyway.

Discussed with: imp
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

Sort configuration options for consistency with other boards.

MFC after: 3 days
Sponsored by: The FreeBSD Foundation

Merge ^/projects/release-arm-redux into ^/head.

Of note:

- This commit adds native FreeBSD/arm release build support without
requiring out-of-tree utilities.

- Part of this merge removes the WANDBOARD-{SOLO,DUAL,QUAD} kernel
configuration files, for which the IMX6 kernel configuration file
should be used instead.

- The resulting images have a 'freebsd' user (password 'freebsd'),
to allow ssh(1) access when console access is not available (VGA
or serial). The default 'root' user password is set to 'root'.

- The /etc/ttys file for arm images now enable both ttyv0 and ttyu0
by default.

Help from: many (boot testing, feedback, etc.)
Sponsored by: The FreeBSD Foundation

Fix CROCHETBRANCH, forgotten in r280640.

Submitted by: ruben.kerkhof@gmail.com
PR: 199760
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

Crochet sources moved to a new home; update accordingly.

MFC after: 3 days
Sponsored by: The FreeBSD Foundation

Set a static revision of the Crochet checkout to avoid
surprise build failures.

MFC after: 3 days
X-10.1-MFC: yes
X-MFC-With: r271676, r271677
Sponsored by: The FreeBSD Foundation

Merge the following from ^/projects/release-noxdev:
r269549, r269551, r269552, r269553, r269554, r269555, r269558, r269559,
r269560, r269561, r269628, r269629, r269630, r269635, r269637:

r269549:
Create a new project branch, release-noxdev, for
a sandbox workspace outside of head/ to update the
release bits for arm builds since the deprecation of
the XDEV and XDEV_ARCH make(1) variables.

r269551:
Define load_chroot_env() and load_target_env()
prototypes.

r269552:
Call load_chroot_env() and load_target_env() where
they can be mutually conflicting with regard to
TARGET, TARGET_ARCH, XDEV, and XDEV_ARCH.

r269553:
Add shebang line to arm/*.conf files since these
should be considered to be executable (albeit not
on their own) shell scripts.

r269554:
Redefine load_chroot_env() and load_target_env() in
the arm/*.conf files, and reindent.

r269555:
Simplify where load_chroot_env() and load_target_env() are
called.

r269558:
Provide example in release.conf.sample for overriding the
load_chroot_env() and load_target_env() prototypes.

r269559:
Remove a gratuitous newline.

r269560:
Unset potentially conflicting variables in load_chroot_env()
and load_target_env().

r269561:
Make global variables global, and accessible outside of
the functions within which they were once defined.

r269628:
Remove XDEV/XDEV_ARCH evaluation if EMBEDDEDBUILD is set.

r269629:
In arm/release.sh, switch TARGET/TARGET_ARCH back to the
original XDEV/XDEV_ARCH make(1) variables.

In theory, this should have been a no-op, but the TARGET and
TARGET_ARCH are now unset in load_target_env() to avoid
collision with the chroot userland.

r269630:
Export variables in the arm/*.conf files because they
need to be passed through release.sh to arm/release.sh.

Set MK_TESTS=no for the xdev target.

r269635:
As part of the XDEV/XDEV_ARCH deprecation, the
'xdev-links' target was intentionally no longer
invoked automatically.

Invoke the xdev-links target after xdev, which
creates, for example, /usr/bin/armv6-freebsd-cc
symlink to /usr/armv6-freebsd/usr/bin/cc.

r269637:
Set TARGET and TARGET_ARCH to the XDEV and XDEV_ARCH
counterparts for the xdev and xdev-links make(1)
targets.

Sponsored by: The FreeBSD Foundation

Move xdev knobs from release/arm/release.sh and into an
XDEV_FLAGS variable in ${KERNCONF}.conf file.

MFC after: 3 days
X-MFC-Note: fix stable/10 XDEV_FLAGS local for branch
Sponsored by: The FreeBSD Foundation

Merge r262906 from ^/projects/release-embedded:
Remove only-works-on-amd64 restriction.

Sponsored by: The FreeBSD Foundation

Merge ^/projects/release-embedded into ^/head.

After several months of testing and fixing (and breaking)
various parts of release/release.sh changes, it is now
possible to build FreeBSD/arm images as part of the release
process.

When EMBEDDEDBUILD is set in the release.conf file, release.sh
will create the build environment, then run a separate script
in release/${XDEV}/release.sh [1]. Currently, only arm is
supported.

The release/${XDEV}/release.sh configures the build environment
specific for the target image, such as installing gcc(1),
installing additional third-party software from the ports tree,
and fetching external sources.

Once the build environment is set up, release/${XDEV}/release.sh
runs Crochet, written by Tim Kientzle, which builds the userland
and kernel, and creates an image that can be written to an SD
card with dd(1). Many thanks to Tim for his work on Crochet.

Sample configurations for FreeBSD/arm boards are in the
release/arm/ directory, and Crochet configuration files for each
board are located in release/tools/arm/. Supported boards at this
time are: BEAGLEBONE, PANDABOARD, RPI-B, and WANDBOARD-QUAD.

Adding support for additional boards will continue in the
projects/release-embedded/ branch, and incrementally merged back
to head/.

Many thanks to the FreeBSD Foundation for the support and
sponsorship of this project.

[1] XDEV is used in order to keep the various configurations
organized by architecture, but since TARGET and TARGET_ARCH
are used to build the chroot, the values of those variables
cannot be used.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

Merge the following:
^/user/gjb/hacking/release-embedded:
259994,260000,260895-260896,261139,261152,
261174,261176,261210,261221,261237,261239,
261448,261489
^/user/gjb/release-embedded:
262305,262307

svn:mergeinfo is intentionally not included in the commit, so it does
not propagate to head/.

Sponsored by: The FreeBSD Foundation

Add initial support for the PANDABOARD.

Sponsored by: The FreeBSD Foundation