The Alpine Platform-On-Chip offers multicore processing
(quad ARM Cortex-A15), 1/10Gb Ethernet, SATA 3, PCI-E 3,
DMA engines, Virtualization, Advanced Power Management and other.
This code drop involves basic platform support including:
SMP, IRQs, SerDes, SATA. As of now it is missing the PCIe support.
Part of the functionality is provided by the low-level code (HAL)
delivered by the chip vendor (Annapurna Labs) and is a subject to
change in the future (is planned to be moved to sys/contrib directory).
The review log for this commit is available here:
https://reviews.freebsd.org/D2340
Reviewed by: andrew, ian, imp
Obtained from: Semihalf
Sponsored by: Annapurna Labs
Of note:
- This commit adds native FreeBSD/arm release build support without
requiring out-of-tree utilities.
- Part of this merge removes the WANDBOARD-{SOLO,DUAL,QUAD} kernel
configuration files, for which the IMX6 kernel configuration file
should be used instead.
- The resulting images have a 'freebsd' user (password 'freebsd'),
to allow ssh(1) access when console access is not available (VGA
or serial). The default 'root' user password is set to 'root'.
- The /etc/ttys file for arm images now enable both ttyv0 and ttyu0
by default.
Help from: many (boot testing, feedback, etc.)
Sponsored by: The FreeBSD Foundation
since it supports all of these board variants.
While here, remove the WANDBOARD-{QUAD,SOLO,DUAL} kernel
configuration files.
Discussed with: ian
Sponsored by: The FreeBSD Foundation
each of the existing kernel configs. This gives a place to put config
that applies to the entire arch.
Add the ARM_NEW_PMAP option to std.armv6. This is working well in early
testing and it's time for wide exposure, but it's still nice to be able
to fall back to the old implementation for testing when a problem comes
along. Eventually the option and the old implementation will go away.
The opportunity now exists to move a whole lot of boilerplate from all the
arm kernel config files into std.arm*, but that's a commit for another day.
into the kernel, which is used mostly on early development stages.
On RPI(2) the DTB is loaded and modified by firmware and then handed to
kernel via U-Boot and ubldr.
The RPI firmware adds (or modify) a few valuable data to the in memory
DTB, like:
- System memory;
- Ethernet MAC address;
- framebuffer settings;
- Board serial and revision;
- clock-frequency for most of devices.
handles versions 0.1 and 0.2 of the standard on 32-bit ARM.
With this driver we can shutdown in QEMU. Further work is needed to
turn secondary cores on on boot and to support later revisions of the
specification.
Submitted by: Robin Randhawa <Robin.Randhawa at ARM.com>
Sponsored by: The FreeBSD Foundation
the Raspberry Pi B we support most of the devices are already supported,
however the base address has changed.
A few items are not working, or missing. The main ones are:
* DMA doesn't work in the sdhci driver.
* Enabling vchiq halts the boot, may be interrupt related.
* There is no U-Boot port yet so the DTB is embedded in the kernel.
The last point will make it difficult to boot FreeBSD, however there is
support for the Raspberry Pi 2 in the U-Boot git repo. As I have not tested
this it is left as an open task to create a port to build.
X-MFC: When the above issues are fixed
Sponsored by: ABT Systems Ltd
These are left over from long ago when there was no way to load modules
on early armv6 platforms, and when there was a build problem with ahc
that has long since been fixed, and they just keep getting copy-pasted
into new configs.
driver on Rockchip boards. It currently supports PIO mode
and dma mode needs external dma controller to be used.
Submitted by: jmcneill
Approved by: stas (mentor)
To cut off the power we need to start the shutdown sequence by writing
the OFF bit on PMIC.
Once the PMIC is programmed the SoC needs to toggle the PMIC_PWR_ENABLE
pin when it is ready for the PMIC to cut off the power. This is done by
triggering the ALARM2 interrupt on SoC RTC.
The RTC driver only works in power management mode which means it won't
provide any kind of time keeping functionality. It only implements a way
to trigger the ALARM2 interrupt when requested.
Differential Revision: https://reviews.freebsd.org/D1489
Reviewed by: rpaulo
MFC after: 2 weeks
