- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC r277962, r277988, r282661, r282727, r282731, r283013, r283035:

Add support for booting relocatable kernels on PowerPC.

Add code to support loading relocatable kernels at offsets that are
not zero.

Move ubldr text section to the start of the output file, so that when you
create a stripped .bin file from it the entry point is the first byte of
the file. (Will allow "load $addr $file ; go $addr" in u-boot.)

Create a relocatable instance of ubldr for ARM (ubldr.bin).

Re-link ubldr when any of its libraries change.

An ARM kernel can be loaded at any 2MB boundary, make ubldr aware of that.

MFC 273927:

Move the definitions of the fdt functions from a uboot header to a new fdt
header. There is nothing in the fdt spec that ties it to U-Boot.

While here sort and fix the signature of fdt_setup_fdtp.

MFC 273934:

Start to allow platforms other than U-Boot to use the FDT code in loader by
moving U-Boot specific code from libfdt.a to a new libuboot_fdt.a. This
needs to be a new library for linking to work correctly.

Differential Revision: https://reviews.freebsd.org/D1054
Reviewed by: ian, rpaulo (earlier version)

MFC r263052, r263124, r263265, r263267... Enhance loaderdev env var.

Enhance the mechanism that lets you configure the ubldr boot device by
setting the u-boot environment variable loaderdev=. It used to accept only
'disk' or 'net'. Now it allows specification of unit, slice, and partition
as well. In addition to the generic 'disk' it also accepts specific
storage device types such as 'mmc' or 'sata'.

If there isn't a loaderdev env var, the historical behavior is maintained.
It will use the first storage device it finds, or a network device if
no working storage device exists.

99% of the work on this was done by Patrick Kelsey, but I made some
changes, so if anything goes wrong, blame me.

(Indeed, the 3 followup commits fixed things I got wrong on the first.)

MFC r262664, r262694:

Prevent fdt data loaded from a file from overwriting the kernel environment,
by having uboot_autoload() do the fdt setup (which may load a file) rather
than waiting until we're actually in the process of launching the kernel.

As part of making this happen...
- Define LOADER_FDT_SUPPORT on the uboot/lib compile command line when
MK_FDT is set.
- Make fdt_setup_fdtb() public.
- Declare public fdt_whatever() functions in a header instead of using
scattered extern decls in .c files.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

Make struct uboot_devdesc compatible with struct disk_devdesc.

Determine kernel load address dynamically from u-boot memory map.

The generic ELF loading code maps the kernel into low memory
by subtracting KERN_BASE. So the copyin/copyout/readin functions
are always called with low addresses. This code finds the largest
DRAM block from the U-Boot memory map and adds that base to
the addresses.

In particular, this fixes ubldr on AM3358, which has DRAM
mapped to 0x80000000 at power-on.

Teach ubldr(8) about simple MBR partitioning.

GPT style partitioning for loader(8) with U-Boot support library (tested on
ARM).

Submitted by: Piotr Ziecik kosmo ! semihalf dot com

Initial storage functionality for U-Boot support library.

- Only non-sliced bsdlabel style partitioning is currently supported (but provisions
are made towards GPT support, which should follow soon)
- Enable storage support in loader on ARM

Obtained from: Semihalf

style(9) & style.Makefile(9)

Reviewed by: raj

Eliminate artificial increasing of 'netdev_opens' counter in loader's net_open().

This was introduced as a workaround long time ago for some Alpha firmware
(which is now gone), and actually prevented net_close() to ever be
called.

Certain firmwares (U-Boot) need local shutdown operations to be performed on a
network controller upon transaction end: such platform-specific hooks are
supposed to be called via netif_close() (from within net_close()).

This change effectively reverts the following CVS commit:

sys/boot/common/dev_net.c

revision 1.7
date: 2000/05/13 15:40:46; author: dfr; state: Exp; lines: +2 -1
Only probe network settings on the first open of the network device.
The alpha firmware takes a seriously long time to open the network device
the first time.

Also suppress excessive output while netbooting via loader, unless debugging.

While there, make sys/boot/uboot more style(9) compliant.

Reviewed by: imp
Approved by: cognet (mentor)

MFp4 (e500):

Add support for U-Boot. This uses the U-Boot API as developed by
Rafal and which is (will be) part of U-Boot 1.3.2 and later.

Credits to: raj@