Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

Approved by: re (implicit)
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

Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this
shifts into the sign bit. Instead use (1U << 31) which gets the
expected result.

This fix is not ideal as it assumes a 32 bit int, but does fix the issue
for most cases.

A similar change was made in OpenBSD.

Discussed with: -arch, rdivacky
Reviewed by: cperciva

trim trailing spaces that have accumulated over the years (these files
served as the basis for too many other platforms).

Hook up the five gpio pins on the Avila board to the gpio framework. There are
actually 16 I/O lines but the other ones are used for system devices and
interrupts.

The IXP4XX platform can set interrupts on these pins for
high/low/rising/falling/transitional but this is not implemented yet.

The Cambria has the same interface but as all the pins are assigned to system
functions the gpio header is toggled via a PLD on the i2c bus and is not
supported by this commit.

map the optional GPS and RS485 uart's on the Gateworks Cambria board
(may want to make these conditional)

add IXP4XX_FLASH_SIZE config knob that can be used to override the default
flash size; this is necessary at the moment because we map all of flash at
boot, eventually we'll do this on the fly

Cleanup virtual device mapping some more:
o improves understandability by replacing numerous relative address
calculations with fixed addresses; everything should now match up
more easily with the vm layout shown at the top of the file
o move the expansion bus chip select regions to be contiguous with
the expansion bus configuration area; this is not exploited right
now but allows map consolidation in the future
o leave a gap between the expansion bus regions and the pci config
space in case we want to map more exp bus cs regions

Reviewed by: imp, thompsa

Add support for the StrataFlash on 2348 boards:
o add bus shim for cfi driver
o add static mapping for CS0 (we map all 16M as the cfi driver doesn't
support demand mapping)

Note this needs some tweaking to work for 2358 boards which is why the
CAMBRIA config is not touched.

Fill in feature control support:
o add definitions for more bits, for masking out IXP465-specific bits,
and %b format string
o add ixp4xx_read_feature_bits to retrieve the mask of valid features
(aka fuse bits)
o add cpu_is_ixp42x() macro
o print feature bits at boot

Merge support for Gateworks Cambria boards:
o add support for IXP435 cpu's (e.g. 64 irq's)
o add support for Cambria-specific devices: npe, led's (front panel and
octal latch), ehci, mcu, ide cf
o redo memory mapping for xscale/ixp4xx boards: previously memory
was assumed aliased to 0x10000000 but this appears to be true only
for ixp425 systems and breaks operation on others; rework so memory
is assumed to start at 0
o rework NPE configuration support to use NPE id's instead of port #'s;
these changes also rename the associated MAC's to follow the NPE's
they are attached to
o update npe firmware to latest rev (same license) and update default fw
imageid's to match; in particular this adds NPE-A and crypto support
o re-style NPE fw handling code and add a console msg identifying the
attributes of the loaded fw
o fix numerous problems with handling failures during npe setup
o fix npe rx q setup; need to spin waiting for mailbox responses during
early boot stages as qmgr interrupts are not delivered; this fixes
the problem where all 8 traffic classifications were not tied to the
rx q (and eliminates the console msg "remember to fix rx q setup")
o add DELAY to npe MII wait logic for IXP435
o strip down builtin phys->virt address translation table in resource
handling to just those resources that require it and add a console msg
to alert people when this (kludge) table needs to be extended
o purge a bunch of dead netbsd-ism's
o cleanup avila led driver
o add Cambria support to boot2 and rework code for better multi-board support

Notes:
1. NPE-A doesn't work and causes NPE-C to stop working; it is disabled
in the hints
2. USB isn't working yet; controller communicates ok but device
discovery fails
3. Cambria support must be configured separately from IXP425 boards;
multi-board support is TBD

Sponsored by: Hobnob, Gateworks (board donation)
Reviewed by: imp

Map the second CS of the compact flash too. This allow us access to
the alternate status and the control registers. Remove the local
version of ata_reset.

Add support for the ADI Pronghorn Metro boards. They use CS3 and CS4
instead of Avila's CS1 and CS2.

Gateworks Avila board support:
o ixp425 support
o NPE network driver (requires Intel microcode)
o h/w qmgr support
o True IDE compact flash over expansion bus
o pci (ath and hifn795x parts tested)
o xscale watchdog timer
o ds1672 RTC on i2c bus
o ad7418 voltage + temp monitoring on i2c bus
o uart

Work done together with cognet, kevlo, and jmg. Parts of
the ixp425 support obtaine/derived from netbsd.

Reviewed by: cognet, imp
MFC after: 1 month