As discussed in arm@. This is a scaled back version of the prior
commit because xscale is overlaoded in places to mean armv5 or
similar. The OLD XSCALE stuff hasn't been useful in a while. The
original committer (cognet@) was the only one that had boards for
it. He's blessed this removal. Newer XSCALE (GUMSTIX) is for hardware
that's quite old. After discussion on arm@, it was clear there was no
support for keeping it.
Noticed by: andrew@
r336773 removed all things xscale. However, some things xscale are
really armv5. Revert that entirely. A more modest removal will follow.
Noticed by: andrew@
The OLD XSCALE stuff hasn't been useful in a while. The original
committer (cognet@) was the only one that had boards for it. He's
blessed this removal. Newer XSCALE (GUMSTIX) is for hardware that's
quite old. After discussion on arm@, it was clear there was no support
for keeping it.
Differential Review: https://reviews.freebsd.org/D16313
Add std.ralink to define common things across all ralink configs.
Add cpu, machine and options INTRNG to this file.
Remove RT1310.hints file reference: that file isn't in our tree.
This port hasn't been updated since it was committed, apart from
housekeeping. There's no known users, and the known hardware for
this port is too thin to run FreeBSD/arm these days well.
This also removes the last armv4 port. We've had no reports of armv4
systems working since FreeBSD 8. All the kernel support for armv4 has
not been removed since it's too intertwined with armv5 support (which
remains in the tree).
RelNotes: Yes
No objection from: arm@
The last known robust version of this code base was FreeBSD 8.2. There
are no users of this on current, and all users of it have abandoned
this platform or are in legacy mode with a prior version of FreeBSD.
All known users on arm@ approved this removal, and there were no
objections.
Differential Revision: https://reviews.freebsd.org/D16312
Previously, a step by PT_STEP resulted in no signal being raised to
the debugger so that a step was silently completed with the program
continuing to execute after the step. Fix by raising a SIGTRAP
signal with TRAP_TRACE as the signal code.
To simplify the error handling cases (if ptrace_clear_single_step()
fails, etc.) move the handling of PTRACE_BREAKPOINT into the
gdb_trapper() function. If ptrace_clear_single_step() fails,
gdb_trapper() won't claim the fault, and the default case of
SIGILL / ILL_OPC will be used.
Differential Revision: https://reviews.freebsd.org/D16100
Remove all the big-endian arm architectures (ixp425 and ixp435)
support in the kernel and associated drivers.
Differential Revision: https://reviews.freebsd.org/D16257
Xilinx Ultrascale+ are based on Cortex-A53 and use existing
UART driver (uart_dev_cdnc). Enable it in arm64 GENERIC config.
Submitted by: Michal Stanek <mst@semihalf.com>
Obtained from: Semihalf
boot_parse_arg to parse a single arg
boot_parse_cmdline to parse a command line string
boot_parse_args to parse all the args in a vector
boot_howto_to_env Convert howto bits to env vars
boot_env_to_howto Return howto mask mased on what's set in the environment.
All these routines return an int that's the bitmask of the args
translated to RB_* flags. As a special case, the 'S' flag sets the
comconsole_speed env var. Any arg that looks like a=b will set the env
key 'a' to value 'b'. If =b is omitted, 'a' is set to '1'. This
should help us reduce the number of redundant copies of these routines
in the tree. It should also give a more uniform experience between
platforms.
Also, invent a new flag RB_PROBE that's set when 'P' is parsed. On
x86 + BIOS, this means 'probe for the keyboard, and if it's not there
set both RB_MULTIPLE and RB_SERIAL (which means show the output on
both video and serial consoles, but make serial primary). Others it
may be some similar concept of probing, but it's loader dependent
what, exactly, it means.
These routines are suitable for /boot/loader and/or the kernel,
though they may not be suitable for the tightly hand-rolled-for-space
environments like boot2.
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16205
In the armv4/5 world device statements in these files were common, but in
the v6/7 world, other socs don't put device statements into those files, so
this just brings imx5 and imx6 into line with the current conventions.
ignore the timestamp passed in to settime() due to inaccuracy, the core
routines now pass in a nanosecond-accurate time freshly-obtained before
calling each driver's settime() method. Also, add calls to the new
debugging output helpers.
automatically initializing the watchdog using the given value. Also,
attach at BUS_PASS_TIMER to extend watchdog protection to more of the
kernel init process.
The correct value is seconds*2-1. The code was using just seconds*2, which
led to being off by a half-second -- usually not a big deal, except when the
value was the max (128) it overflowed so zero would get written to the
countdown register, which equates to a timeout of a half second.
- Change pcpu zone consumers to use a stride size of PAGE_SIZE.
(defined as UMA_PCPU_ALLOC_SIZE to make future identification easier)
- Allocate page from the correct domain for a given cpu.
- Don't initialize pc_domain to non-zero value if NUMA is not defined
There are some misconceptions surrounding this field. It is the
_VM_ NUMA domain and should only ever correspond to valid domain
values as understood by the VM.
The former slab size of sizeof(struct pcpu) was somewhat arbitrary.
The new value is PAGE_SIZE because that's the smallest granularity
which the VM can allocate a slab for a given domain. If you have
fewer than PAGE_SIZE/8 counters on your system there will be some
memory wasted, but this is obviously something where you want the
cache line to be coming from the correct domain.
Reviewed by: jeff
Sponsored by: Limelight Networks
Differential Revision: https://reviews.freebsd.org/D15933
detach() to do nothing if attach() succeeded, which is the opposite of
what's needed. Also, move device_delete_children() from the end to the
beginning of detach(), so that children won't be trying to make use of the
hardware we're in the process of shutting down.
PR: 229510
arrays, as elements 0 and 1 of one array and elements 1 and 2 of the other.
Run the loop 0..1 instead of 1..2 and use named constants to offset into
one of the arrays.
PR: 229508
Add support for the second channel to bcm2835_pwm driver. Configurable
parameters like mode, period, ratio are exposed as sysctls with postfix '2',
e.g.: dev.pwm.N.mode2, dev.pwm.N.period2, dev.pwm.N.ratio2
Second channel can be enabled in DTB by configuring pwn-2chan overlay
instead of pwm in config.txt. See [1]
[1] https://github.com/raspberrypi/firmware/blob/master/boot/overlays/README
Submitted by: Bob Frazier
Differential Revision: https://reviews.freebsd.org/D15769
SDHOST is another SD controller that is present on Raspberry Pi (the
other one is SDHC and handled by bcm2835_sdhci driver). Both
controllers are capable of providing interface to SD card, actual
configuration can be set in dtb file. At the moment custom DTBs for
RPi/RPi2 have sdhost node disabled. On RPi3 sdhost is disabled in
snapshot images by applying mmc.dtbo overlay. To enalbe both devices
user has to edit config.txt on FAT partition and remove or comment
"dtoverlay=mmc" line.
When no overlay applied on RPi3 SDHOST controls SD card and SDHC
interface can be used for SDIO. mmc.dtbo overlay disables SDHOST node
and switches SD card over to SDHC. Likewise sdhost.dtbo overlay (not
currently included in snapshot image, but can be obtained from firmare
repo[1]) disabled SDHC node and switch SD card over to SDHOST.
[1] https://github.com/raspberrypi/firmware/tree/master/boot/overlays
Submitted by: Klaus P. Ohrhallinger <k@7he.at>
Differential Revision: https://reviews.freebsd.org/D14168
