CVS log for src/sys/arch/arm/fdt/arm_platform.c

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Rename ARM_PLATFORM to FDT_PLATFORM and make it available outside arm.

Restore the ability to have EARLYCONS work for the QEMU virt after
SOC_VIRT got removed.

Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
  actually needed.
- Don't be explicit about what interface attribute is attaching if
  the device only has one.  (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
  situations, making is visibly easier to see when indirect config is
  in play, and allowing for future change in semantics.  (As of now,
  this is just a wrapper around config_match(), but that is an
  implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance.  This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

Sync with HEAD.

- FDT device enumeration now sets the device handle using CFARG_DEVHANDLE.
- fdtbus_device_register() is now obsolete, so G/C it.
- of_device_register() is now obsolete, so G/C it.

Call acpi_device_register() / fdtbus_device_register() as approrpriate.

Get rid of a4x bus_space tag from fdtbus_attach_args. The only consumer
of this was various com(4) glue so modify all of that to use the new
com_init_regs_stride instead.

Merge changes from current as of 20200406

file arm_platform.c was added on branch phil-wifi on 2020-04-08 14:07:29 +0000

Fix DEVMAP build losage by reducing diffs between arm and aarch64

*sigh*

Make the generic Arm platform available for arm32 as well.