Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

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

Move arm's devmap to some generic place, so it can be used
by other architectures.

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D6091
Sponsored by: DARPA, AFRL
Sponsored by: HEIF5

Add the start of the ARM platform code. This is based on the PowerPC
platform code, it is expected these will be merged in the future when the
ARM code is more complete.

Until more boards can be tested only use this with the Raspberry Pi and
rrename the functions on the other SoCs.

Reviewed by: ian@

Rename platform_gpio_init to be SoC specific

Add #include <machine/fdt.h> to a few files that used to get it via
pollution from other headers.

Convert from using fdt_immr style to arm_devmap_add_entry() to make
static device mappings.

This SoC relied heavily on the fact that all devices were static-mapped
at a fixed address, and it (rather bogusly) used bus_space read and write
calls passing hard-coded virtual addresses instead of proper bus handles,
relying on the fact that the virtual addresses of the mappings were known
at compile time, and relying on the implementation details of arm
bus_space never changing. All such usage was replaced with calls to
bus_space_map() to obtain a proper bus handle for the read/write calls.

This required adjusting some of the #define values that map out hardware
registers, and some of them were renamed in the process to make it clear
which were defining absolute physical addresses and which were defining
offsets. (The ones that just define offsets don't appear to be referenced
and probably serve no value other than perhaps documentation.)

Call initarm_lastaddr() later in the init sequence, after establishing
static device mappings, rather than as the first of the initializations
that a platform can hook into. This allows a platform to allocate KVA
from the top of the address space downwards for things like static device
mapping, and return the final "last usable address" result after that and
other early init work is done.

Because some platforms were doing work in initarm_lastaddr() that needs to
be done early, add a new initarm_early_init() routine and move the early
init code to that routine on those platforms.

Rename platform_devmap_init() to initarm_devmap_init() to match all the
other init routines called from initarm() that are designed to be
implemented by platform code.

Add a comment block that explains when these routines are called and the
type of work expected to be done in each of them.

Move remaining code and data related to static device mapping into the
new devmap.[ch] files. Emphasize the MD nature of these things by using
the prefix arm_devmap_ on the function and type names (already a few of
these things found their way into MI code, hopefully it will be harder to
do by accident in the future).

Retire arm_remap_nocache() and the data and constants associated with it.

The only remaining user was the code that allocates bounce pages for armv4
busdma. It's not clear why bounce pages would need uncached memory, but
if that ever changes, kmem_alloc_attr() would be the way to get it.

Remove #include <machine/frame.h> from all the arm code that doesn't
really need it. That would be almost everywhere it was included. Add
it in a couple files that really do need it and were previously getting
it by accident via another header.

Remove all #include <machine/pmap.h> from arm code. It's already
included by vm/pmap.h, which is a prerequisite for arm/machine/pmap.h
so there's no reason to ever include it directly.

Thanks to alc@ for pointing this out.

Merge the FDT versions of initarm.

The copies of initarm used on platforms with FDT support were almost
identical. The differences were pulled out into separate functions that
were called by initarm.

This change merges the, now identical, copies of initarm and a few of it's
support functions. This is a step towards a common kernel on ARMv6.

Merge r242125 into the other ARMv6 copies of initarm.

Move the call to platform_gpio_init() into initarm_gpio_init() to reduce
the diff to the other FDT versions of initarm.

Create the new initarm_ functions to reduce the diff to the other FDT
versions of initarm

Use arm_dump_avail_init to build the dump_avail array

Start to clean up the lpc initarm as it also uses FDT.

Update different versions of physmap_init to be identical in preparation
for merging them.

Reduce the diff between the FDT implementations of initarm.
This only touches whitespace and comments.

Create a common set_stackptrs in sys/arm/machdep.c.

On single core devices set_stackptrs is only ever called with cpu = 0 in
initarm and will be identical to the existing function. On SMP this needs
to be implemented for sys/arm/mp_machdep.c, but the implementations are
identical for each SoC.

Switch lpc initarm() to use struct arm_boot_params and therefore fix
EA3250 kernel build.

Approved by: gonzo

Merging of projects/armv6, part 8

r235162:

Initial LPC32x0 support. Includes DTS file for Embedded Artists EA3250
board.

Peripherals currently supported:
- Serial ports
- Interrupt controller
- Timers
- Ethernet
- USB host
- Framebuffer (in conjunction with SSD1289 LCD controller)
- RTC
- SPI
- GPIO

Submitted by: Jakub Wojciech Klama <jceel@freebsd.org>