RPI is using the firmware provided DTS since 12.0
Pandaboard works with the Linux DTS
RK* Exynos* and Meson*/Odroid* don't even work with current
source code, if someone wants to make them work again they
better use the Linux DTS.
update of devicetree to 4.19 in r340337.
Our build system doesn't provide dependencies for included DTS files, so
nobody noticed this issue for long time.
PR: 235362
MFC after: 1 week
- Remove CS=2 entry from spigen-rpi2 since it didn't work
- Add spigen-rpi3 overlay for Raspberry Pi 3
- Enable rpi overlay modules for GENERIC kernel on aarch64
PR: 233489
Submitted by: bobf@mrp3.com
Reviewed by: db
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D16088
There were two main problems here:
1.) sys/dts/Makefile.inc is not included from various */overlays directories
by default, only ../Makefile.inc
2.) When shelling out for DTS/DTSO, cwd != .CURDIR, so enumeration always
failed
These changes allow make test-dts and make test-dtso to function in their
respective directories.
Reviewed by: manu
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D17961
(e.g. RocketChip, lowRISC and derivatives).
RISC-V page table entries support A (accessed) and D (dirty) bits. The
spec makes hardware support for these bits optional. Implementations that
do not manage these bits in hardware raise page faults for accesses to a
valid page without A set and writes to a writable page without D set.
Check for these types of faults when handling a page fault and fixup the
PTE without calling vm_fault if they occur.
Reviewed by: jhb, markj
Approved by: re (gjb)
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D17424
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
property for spi devices, although in the spigen case it's expected that
the speed will be overridden at runtime via the ioctl interface. A very
conservative 500khz speed is used (I've never seen a spi device that
couldn't run at 1mhz).
By adding spigen-rpi{2,-b}.dtso to fdt_overlays= in loader.conf, the fdt data
will set up the correct pinmux and device nodes to create a spigen(4) device
for each available chipselect pin.
Submitted by: Bob Frazier
Differential Revision: https://reviews.freebsd.org/D15067
The 4.16 DTS import brought in emac support for the a83t. Since these
boards' DTS is pulled from /boot and I forgot to hook these up to the build,
they should be fairly safe to go away.
The a83t-sid and h3-sid overlays are still relevant. a83t-sid will likely
come in with 4.18 DTS.
This patch implements and exports functions described
in gpio_if.m file. It also uses new gpiobus_attach_bus function
instead of adding gpioc and gpiobus as children. It removes
ulgy reading SoC ID and related if..else, so it depends only on
data read from FDT.
Submitted by: Patryk Duda <pdk@semihalf.com>
Reviewed by: manu
Obtained from: Semihalf
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D14756
Now, as all platform code and drivers support Linux
DT binding, safely remove deprecated sources and rely
on sys/gnu/dts from now on.
Obtained from: Semihalf
Sponsored by: Stormshield
On Raspberry Pi platform GPIO controller also responsible for pins
multiplexing. Pi code predates proper FDT support in FreeBSD so a
lot of pinmux info is hardcoded. This patch:
- Implements pinctl methods in bcm2835_gpio
- Converts all devices with ad-hoc pinmux info to proper pin control
mechanisms and adds pinmux info in FreeBSD's custom dts files.
- Adds fdt_pinctrl option to RPI2 and RPI-B kernels
- Adds SPI pinmux config to FreeBSD's customization of GNU DTS.
Reviewed by: imp, manu
Differential Revision: https://reviews.freebsd.org/D14104
The sun8i-a83t-bananapi-m3-emac overlay technically doesn't match what will
be coming from upstream. The tx-delay and rx-delay should be specified in
terms of allwinner,tx-delay-ps and allwinner,rx-delay-ps respectively. The
values are still technically correct for what we write in if_awg, and
support for the new bindings will be coming soon.
If driver cannot determine ranges based on fdt, it will calculate
them based on number and type of current port.
Submitted by: Rafal Kozik <rk@semihalf.com>
Obtained from: Semihalf
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D14752
Ranges in pcie-controller are unused, so could be changed to match Linux
device tree represntation. Same with interrupt-cells and interrupt-parent.
In PCI controller driver ocd_data are used for matching driver and
choose proper resources acquisition function.
fdt_win_process_child have new argument which provide information
about fdt node containing addresses of MMIO registers.
Submitted by: Rafal Kozik <rk@semihalf.com>
Reviewed by: manu [DT part]
Obtained from: Semihalf
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D14751
In Linux FDT pcie does not have compatible string.
Configuration of windows in mv_common was based on fdt compatible.
Now pcie windows are configured by their parent: pcie_controller.
Processing is moved to fdt_win_process_child. fdt_win_process now
only walk through the tree. SOC_NODE_PCI is position of pcie function in
soc_node_spec array.
PCIe probe cannot use ofw_bus_search_compatible, because it needs to
check also device type and parents compatible.
Submitted by: Rafal Kozik <rk@semihalf.com>
Reviewed by: manu [DT part]
Obtained from: Semihalf
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D14749
Store pointers to SoC specific functions in mv_timer_config structure
and determine proper config in runtime based on compatible string from FDT.
Compatible string for ArmadaXP timers is changed to match Linux FDT.
Armada 38x uses generic Cortex-A9 timer and separate watchdog drivers, so
it does not need to be supported by timer driver.
Submitted by: Rafal Kozik <rk@semihalf.com>
Reviewed by: manu
Obtained from: Semihalf
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D14741
DTB Overlays are useful to change/add nodes to a dtb without the need to
modify it.
Add support for building dtbo during buildkernel.
The goal of DTBO present in the FreeBSD source tree is to fill a gap in
time when we submit changes upstream (Linux). Instead of waiting 2 to 4 months
we can add a DTBO in tree in the meantime.
This is not for adding DTBO for capes/hat/addon boards, those will be
better to put in a ports.
This is also not for enabling a i2c/spi/pwm controller on certain pins,
each user have a different use case for those (which pins to use etc ...)
and we cannot have all possible configuration.
Add a dtbo for sun8i-h3-sid which add the SID node missing in upstream dts.
Reviewed by: kevans
Differential Revision: https://reviews.freebsd.org/D14782
Upstream DTBs don't provide IRQ lines for the RNG. Moreover, harvesting
bytes as often as the RNG interrupt is triggered (87 times per sec) is an
overkill.
For these reasons, get rid of the interrupt mode and make callout mode the
default, with random bits harvested every 4 seconds.
Submitted by: Sylvain Garrigues <sylgar@gmail.com>
Reviewed by: ian, imp, manu, mmel
Approved by: emaste
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D14541
instead of frobbing the registers directly.
As a hack the bcm2835_pwm kmod presently ignores the 'status="disabled"'
in the RPI3 DTB, assuming that if you load the kld you probably
want the PWM to work.
