bcm2835: Remove support for SoCs with an Armv6 CPU

Armv6 has been removed, there is no need to keep this in the tree.

Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D45956

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

arm: clean up empty lines in .c and .h files

arm: add SOC_BRCM_BCM2837 option, include it in GENERIC

We use armv7/GENERIC for the RPI2 images. The original RPI2 is actually a
32-bit BCM2836, but v1.2 was upgraded to the 64-bit BCM2837. The pro

arm: add SOC_BRCM_BCM2837 option, include it in GENERIC

We use armv7/GENERIC for the RPI2 images. The original RPI2 is actually a
32-bit BCM2836, but v1.2 was upgraded to the 64-bit BCM2837. The project
continues to provide the RPI2 image as armv7, as it's the lowest common
denominator of the two. Historically, we've just kind of implicitly
acknowledged this by including some bcm2837 bits on a SOC_BCM2836 kernel
config -- this worked until r354875 added code that actually cared.

Acknowledge formally that BCM2837 is valid in arm32.

This name is inconsistent with the other BCM* SOC on !arm64 for two reasons:

1. It's a pre-existing option on arm64, and
2. the naming convention on arm/ should've arguably changed to include BRCM

#1 seems to be a convincing enough argument to maintain the existing name
for it.

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[rpi] Fix compatiblity with upstream DTB for RPi 3B and 3B+

Upstream dtb switched to using brcm,bcm2837 for platform
compatibility string. Patch platfrom and cpufreq compatiblity
data accordingly.

[rpi] Fix compatiblity with upstream DTB for RPi 3B and 3B+

Upstream dtb switched to using brcm,bcm2837 for platform
compatibility string. Patch platfrom and cpufreq compatiblity
data accordingly.

Submitted by: Sylvain Garrigues <sylgar@gmail.com>
Tested by: db@
Differential Revision: https://reviews.freebsd.org/D15998

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[ofw] fix errneous checks for OF_finddevice(9) return value

OF_finddevices returns ((phandle_t)-1) in case of failure. Some code
in existing drivers checked return value to be equal to 0 or
less/equ

[ofw] fix errneous checks for OF_finddevice(9) return value

OF_finddevices returns ((phandle_t)-1) in case of failure. Some code
in existing drivers checked return value to be equal to 0 or
less/equal to 0 which is also wrong because phandle_t is unsigned
type. Most of these checks were for negative cases that were never
triggered so trhere was no impact on functionality.

Reviewed by: nwhitehorn
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D14645

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sys/arm: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/arm: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Merge ^/head r323559 through r325504.

MFhead@r324482

Allow Raspberry Pi platform and drivers to be configured with upstream DTBs.

- Added more compatibility strings to drivers not yet converted
- Added new RPI platform code compatibility string to m

Allow Raspberry Pi platform and drivers to be configured with upstream DTBs.

- Added more compatibility strings to drivers not yet converted
- Added new RPI platform code compatibility string to match the ones used
upstream
- Adapted RPI and RPI2 DTS to match the new platform code compatibility
string

The goal is to use the upstream DTBs as a replacement for our custom one.
This is now possible with these changes.

Additionally, as the RPI firmware automatically chooses the right DTB for
us, this would allow to have one common armv6 kernel for RPI0 and RPI1
(BCM2835-based), and one common armv7 kernel for RPI2 v1.1 (BCM2836-based),
and RPI2 v1.2 / RPI3 (BCM2837-based).

Submitted by: Sylvain Garrigues <sylgar@gmail.com>
Differential Revision: https://reviews.freebsd.org/D12360

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Merge ^/head r309817 through r310168.

All armv6 platforms have the same implementation of platform_lastaddr.
Replace them with a default handler that returns devmap_lastaddr.

Reviewed by: mmel
Sponsored by: ABT Systems Ltd
Differential

All armv6 platforms have the same implementation of platform_lastaddr.
Replace them with a default handler that returns devmap_lastaddr.

Reviewed by: mmel
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8806

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Directly include openfirm.h rather than through fdt_common.h as none of the
latter file is needed.

Sponsored by: ABT Systems Ltd

Use the platform_*_t typedefs to help check the platform function types are
correct.

Sponsored by: ABT Systems Ltd

Merge ^/head r308491 through r308841.

Use the correct OF_getencprop over OF_getprop + fdt32_to_cpu to read
integer data from the device tree.

Sponsored by: ABT Systems Ltd

Merge ^/head r306412 through r306905.

RPI2: Add support for MULTIDELAY, this is needed for inclusion into GENERIC.

RPI2: Add support for PLATFORM_SMP so we can later add it to GENERIC.

Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D8063

RPI-B: Add support for MULTIDELAY

100 cycles per us seems accurate enough, at least it's better than the 200 value
that was used before.

Reviewed by: andrew, imp
Differential Revision: https://revi

RPI-B: Add support for MULTIDELAY

100 cycles per us seems accurate enough, at least it's better than the 200 value
that was used before.

Reviewed by: andrew, imp
Differential Revision: https://reviews.freebsd.org/D8062

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Merge ^/head r305892 through r306302.

Also implement platform_cpu_reset on bcm2836

Move cpu_reset to be a platform method to allow multiple implementations.

Reviewed by: mmel
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8010

Remove bus_dma_get_range and bus_dma_get_range_nb on armv6. We only need
this on a few earlier arm SoCs.

Reviewed by: manu (earlier version)
Sponsored by: ABT Systems Ltd