sys: Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

rpi: Simplify dtb file tests

Now that we no longer support armv[45] devices, these tests can be
simplified. While here, update the comment to reflect which rpi devices
we support. It's been way more

rpi: Simplify dtb file tests

Now that we no longer support armv[45] devices, these tests can be
simplified. While here, update the comment to reflect which rpi devices
we support. It's been way more thant he Pi-B for a long time.

Sponsored by: Netflix

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Add spigen overlay for Raspberry Pi 4

Submitted by: gergely.czuczy@harmless.hu

[rpi] Reorganize spigen(4) overlays for Raspberry Pi

- 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 k

[rpi] Reorganize spigen(4) overlays for Raspberry Pi

- 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

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MFH @ r337607, in preparation for boarding

Merge ^/head r336870 through r337285, and resolve conflicts.

dtb: rpi: Only compile and copy the DTSO

The DTB is now loaded via the firmware, passed to u-boot then to loader.efi
Only compile and copy the dts overlays.

Add spigen(4) fdt data overlays for RPI-B, RPI-2.

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)

Add spigen(4) fdt data overlays for RPI-B, RPI-2.

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

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Merge ^/head r322398 through r322746.

MFhead@r322698

RPI DTS: Add value previously set by VideoCore and DTB links

Using latest U-Boot for RPI 1 or 2 the DTB loaded by the firmware is discarded.
The DTB was previously patched by the firmware to contain

RPI DTS: Add value previously set by VideoCore and DTB links

Using latest U-Boot for RPI 1 or 2 the DTB loaded by the firmware is discarded.
The DTB was previously patched by the firmware to contain the DMA channel mask.
DTB provided by the rpi firmware or DTS in the Linux tree contain the raw value
directly. Do the same for our DTS as we cannot switch to the upstream ones yet.
Not having the DMA channel mask setup properly cause mmc not to be detected
(and probably other problems on driver using DMA).

Also, add links for rpi dtb to the name used by u-boot. This way the dtb can be
loaded by ubldr using the U-Boot env variable fdtfile.

Tested On: RPI B Rev2, RPI Zero, RPI 2 v1.1 RPI 2 v1.2

Thanks to Sylvain Garrigues <sylvain@sylvaingarrigues.com> for the help.

PR: 218344

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Catch up with HEAD (r280229-r284686).

Merge sync of head

Merge from HEAD

MFH: r278968-r280640

Sponsored by: The FreeBSD Foundation

Add the Raspberry Pi 2 dtb, based on the existing rpi.dts, but with a
different base address for the devces.

MFC after: 1 week

MFH: r278202,r278205-r278590

Sponsored by: The FreeBSD Foundation

Merge from HEAD

Merging ^/head r278298 through r278350.

Create a module to install the Raspberry Pi dtb files.