Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

MFC r269594, r269596, r269597, r269598, r269605, r269606:

Set ofwbus and simplebus to attach during BUS_PASS_BUS.

Define names that drivers can use to adjust their position relative to
other drivers within a BUS_PASS

Adjust ofwbus and simplebus to attach at BUS_PASS_ORDER_MIDDLE, so that
a platform can attach some other bus first if necessary.

Set the pl310 L2 cache driver to attach during the middle of BUS_PASS_CPU.

Attach arm generic interrupt and timer drivers in the middle of
BUS_PASS_INTERRUPT and BUS_PASS_TIMER, respectively.

Add an arm option, ARM_DEVICE_MULTIPASS, used to opt-in to multi-pass
device attachment on arm platforms. If this is defined, nexus attaches
early in BUS_PASS_BUS, and other busses and devices attach later, in the
pass number they are set up for. Without it defined, nexus attaches in
BUS_PASS_DEFAULT and thus so does everything else, which is status quo.

MFC r261423, r261424, r261516, r261513, r261562, r261563, r261564, r261565,
r261596, r261606

Add the imx sdhci controller.

Move Open Firmware device root on PowerPC, ARM, and MIPS systems to
a sub-node of nexus (ofwbus) rather than direct attach under nexus. This
fixes FDT on x86 and will make coexistence with ACPI on ARM systems easier.
SPARC is unchanged.

Add the missing ')' at end of sentence. Reword it to use a more common idiom.

Pass the kernel physical address to initarm through the boot param struct.

Make functions only used in vfp.c static, and remove vfp_enable.

Fix __syscall on armeb EABI. As it returns a 64-bit value it needs to
place 32-bit data in r1, not r0. 64-bit data is already packed correctly.

Use abp_physaddr for the physical address over KERNPHYSADDR. This helps us
remove the need to load the kernel at a fixed address.

Remove references to PHYSADDR where it's used only in debugging output.

Dynamically generate the page table. This will allow us to detect the
physical address we are loaded at to change the mapping.

MFC r261351, r261352, r261355, r261396, r261397, r261398, r261403, r261404,
r261405

Open Firmware interrupt specifiers can consist of arbitrary-length byte
strings and include arbitrary information (IRQ line/domain/sense). When the
ofw_bus_map_intr() API was introduced, it assumed that, as on most systems,
these were either 1 cell, containing an interrupt line, or 2, containing
a line number plus a sense code. It turns out a non-negligible number of
ARM systems use 3 (or even 4!) cells for interrupts, so make this more
general.

Provide a simpler and more standards-compliant simplebus implementation to
get the Routerboard 800 up and running with the vendor device tree. This
does not implement some BERI-specific features (which hopefully won't be
necessary soon), so move the old code to mips/beri, with a higher attach
priority when built, until MIPS interrupt domain support is rearranged.

Allow nesting of simplebuses.

Add a set of helpers (ofw_bus_get_status() and ofw_bus_status_okay()) to
process "status" properties of OF nodes.

Fix one remnant endian flaw in nexus.

MFC r260281, r260282, r260283, r260285

Implement OFW_BUS_MAP_INTR() in terms of the FDT PIC table

Reimplement fdt_intr_to_rl() in terms of OFW_BUS_MAP_INTR() and
OFW_BUS_CONFIG_INTR().

Use bus_space_map() rather than pmap_mapdev() in nexus_activate_resource(),
when running on FDT systems. Unmap memory in nexus_deactivate_resource().

Remove fdt_pic_table code from MIPS, PowerPC, and x86, as it is no longer
used by anything.

MFC r260161, r260163, r260165, r260166, r260189

Add polarity and level support to ARM GIC

Do not attach to PCI bridges in AHCI driver

Use only mapped BIOs on ARM

Fix race condition in DELAY for SP804 timer.

MFC r257702, r257745, r257746, r257747, r257751, r257791, r257793,
r257794, r257795, r257992

Teach nexus(4) about Open Firmware (e.g. FDT) on ARM and MIPS, retiring
fdtbus in most cases.

Make OF_nextprop() work correctly for FDT by using the libfdt
fdt_next_property_offset() API.

Do not panic if pmap_mincore() is called.

An addendum: it is possible, though of questionable utility, for a node
to have no properties at all.
Add definition for the Atheros 8021 gigabit PHY.

Consolidate Apple firmware hacks and improve them by switching on the
presence of mac-io devices in the tree, which uniquely identifies Apple
hardware.

Allow OF_decode_addr() to also be able to map resources on big-endian
devices.

Make tsec work with the device tree present on the RB800.

Be more flexible about which compatible strings to accept. This brings up
the PCI Express bus on the RB800 using the firmware device tree.

Rename the "bare" platform "mpc85xx", which is what it actually is, and
add actual platform probing based on PVR.

MFC r257199, r257200, r257217:

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.

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 the last dregs of trapframe_t. It turns out only arm was using
this type, so remove it to make arm code more consistant with other
platforms.

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

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

Move unmask IRQ function call up to nexus device level.

FDT-enabled targets were broken after r238043 that relies
on device up the hierarchy to properly setup interrupt.
nexus device for ARM platforms did job only partially:
setting handler but not unmasking interrupt. Unmasking
was performed by platform code.

Reviewed by: andrew@

Final whitespace trim.

ARMs don't have motherboards.

Obtained from: Semihalf

Change rman_manage_region() to actually honor the rm_start and rm_end
constraints on the rman and reject attempts to manage a region that is out
of range.
- Fix various places that set rm_end incorrectly (to ~0 or ~0u instead of
~0ul).
- To preserve existing behavior, change rman_init() to set rm_start and
rm_end to allow managing the full range (0 to ~0ul) if they are not set by
the caller when rman_init() is called.

bus_add_child: change type of order parameter to u_int

This reflects actual type used to store and compare child device orders.
Change is mostly done via a Coccinelle (soon to be devel/coccinelle)
semantic patch.
Verified by LINT+modules kernel builds.

Followup to: r212213
MFC after: 10 days

Move ARM nexus rman initialization to attach routine.

This fixes a panic, which started to trigger after r209129 cleanup.

Submitted by: Andrew Turner

Improve style.

ARM nexus style(9) improvements.

ARM interrupts improvements.

- Fix nexus_setup_intr() abuse of setting up multiple IRQs in one go. Calling
arm_setup_irqhandler() in loop is bogus, as there's just one cookie given
from the caller and it is overwritten in each iteration so that only the
last handler's cookie value prevails.

- Proper intr masking/unmasking handling: the IRQ source is masked at PIC level
only after the last handler has been removed from the list.

Reviewed by: cognet, imp, sam, stass
Obtained from: Grzegorz Bernacki gjb ! semihalf dot com

Respect RF_SHAREABLE flag in ARM nexus_setup_intr()

Reviewed by: imp
Approved by: cognet (mentor)

o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@

Erm we really want to mask all interrupts in the range, just not the first
one.

Submitted by: ru

Let allow to teardown multiple irqs as well.

Setup multiple interrupts if needed.

When returning a resource that we've allocated with rman_reserve_resource,
go ahead and set the rid for that resource.

Fix multiple abuses of __RMAN_RESOURCE_VISIBLE in the arm code.

Spotted out by: phk

- MFp4: modify slightly the arm intr API, there's arm CPUs with more than 32
interrupts.
- Implement teardown methods where appropriate.

Start all license statements with /*-

Define __RMAN_RESOURCE_VISIBLE where appropriate.

Remove two debugging printf().

On behalf of: cognet

Import FreeBSD/arm kernel bits.
It only supports sa1110 (on simics) right now, but xscale support should come
soon.
Some of the initial work has been provided by :
Stephane Potvin <sepotvin at videotron.ca>
Most of this comes from NetBSD.