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The FMC subsystem was created in 2012 with the ambition to
drive development of drivers for this hardware upstream.
The current implementation has architectural flaws and would
need to be revamped using real hardware to something that can
reuse existing kernel abstractions in the subsystems for e.g.
I2C, FPGA and GPIO.
We have concluded that for the mainline kernel it will be
better to delete the subsystem and start over with a clean
slate when/if an active maintainer steps up.
For details see:
https://lkml.org/lkml/2018/10/29/534
Suggested-by: Federico Vaga <[email protected]>
Cc: Pat Riehecky <[email protected]>
Acked-by: Alessandro Rubini <[email protected]>
Signed-off-by: Federico Vaga <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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This is a respin with a wider audience (all that get_maintainer returned)
and I know this spams a *lot* of people. Not sure what would be the correct
way, so my apologies for ruining your inbox.
The 00-INDEX files are supposed to give a summary of all files present
in a directory, but these files are horribly out of date and their
usefulness is brought into question. Often a simple "ls" would reveal
the same information as the filenames are generally quite descriptive as
a short introduction to what the file covers (it should not surprise
anyone what Documentation/sched/sched-design-CFS.txt covers)
A few years back it was mentioned that these files were no longer really
needed, and they have since then grown further out of date, so perhaps
it is time to just throw them out.
A short status yields the following _outdated_ 00-INDEX files, first
counter is files listed in 00-INDEX but missing in the directory, last
is files present but not listed in 00-INDEX.
List of outdated 00-INDEX:
Documentation: (4/10)
Documentation/sysctl: (0/1)
Documentation/timers: (1/0)
Documentation/blockdev: (3/1)
Documentation/w1/slaves: (0/1)
Documentation/locking: (0/1)
Documentation/devicetree: (0/5)
Documentation/power: (1/1)
Documentation/powerpc: (0/5)
Documentation/arm: (1/0)
Documentation/x86: (0/9)
Documentation/x86/x86_64: (1/1)
Documentation/scsi: (4/4)
Documentation/filesystems: (2/9)
Documentation/filesystems/nfs: (0/2)
Documentation/cgroup-v1: (0/2)
Documentation/kbuild: (0/4)
Documentation/spi: (1/0)
Documentation/virtual/kvm: (1/0)
Documentation/scheduler: (0/2)
Documentation/fb: (0/1)
Documentation/block: (0/1)
Documentation/networking: (6/37)
Documentation/vm: (1/3)
Then there are 364 subdirectories in Documentation/ with several files that
are missing 00-INDEX alltogether (and another 120 with a single file and no
00-INDEX).
I don't really have an opinion to whether or not we /should/ have 00-INDEX,
but the above 00-INDEX should either be removed or be kept up to date. If
we should keep the files, I can try to keep them updated, but I rather not
if we just want to delete them anyway.
As a starting point, remove all index-files and references to 00-INDEX and
see where the discussion is going.
Signed-off-by: Henrik Austad <[email protected]>
Acked-by: "Paul E. McKenney" <[email protected]>
Just-do-it-by: Steven Rostedt <[email protected]>
Reviewed-by: Jens Axboe <[email protected]>
Acked-by: Paul Moore <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Acked-by: Mark Brown <[email protected]>
Acked-by: Mike Rapoport <[email protected]>
Cc: [Almost everybody else]
Signed-off-by: Jonathan Corbet <[email protected]>
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This allows easier modification to the eeprom than loading the
fmc-write-eeprom module. The carrier driver will refuse writing if
the FPGA is not running the golden gateware image, so writing in
practice is only available at manufacture/development time.
Signed-off-by: Alessandro Rubini <[email protected]>
Acked-by: Juan David Gonzalez Cobas <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Fix double words "is is" in Documentations.
Signed-off-by: Masanari Iida <[email protected]>
Acked-by: Rob Landley <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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This driver exports the memory area associated with the mezzanine card
as a misc device, so users can access registers.
Signed-off-by: Alessandro Rubini <[email protected]>
Acked-by: Juan David Gonzalez Cobas <[email protected]>
Acked-by: Emilio G. Cota <[email protected]>
Acked-by: Samuel Iglesias Gonsalvez <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This driver allows to reprogram the EEPROM in a mezzanine, to store
its own identifiers during manufacturing or to save other useful data.
Signed-off-by: Alessandro Rubini <[email protected]>
Acked-by: Juan David Gonzalez Cobas <[email protected]>
Acked-by: Emilio G. Cota <[email protected]>
Acked-by: Samuel Iglesias Gonsalvez <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This simple do-nothing mezzanine driver shows how to write a mezzanine
driver, that can also handle interrupts reported by the carrier.
Signed-off-by: Alessandro Rubini <[email protected]>
Acked-by: Juan David Gonzalez Cobas <[email protected]>
Acked-by: Emilio G. Cota <[email protected]>
Acked-by: Samuel Iglesias Gonsalvez <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This fake carrier is designed to help FMC users understand how a
carrier driver works, and to experiment the behaviour with EEPROM
reprogramming (with a mezzanine driver commited later). This carrier
can register up to 4 (fake) mezzanines.
We have real carriers (both on PCI-E and VME), but they are bigger
things and are not part of this submission.
Signed-off-by: Alessandro Rubini <[email protected]>
Acked-by: Juan David Gonzalez Cobas <[email protected]>
Acked-by: Emilio G. Cota <[email protected]>
Acked-by: Samuel Iglesias Gonsalvez <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This is selected sections of the current manual for fmc-bus, as
developed outside of the kernel before submission.
Like the other patches in this set, it corresponds to commit ab23167f of
the repository at ohwr.org
Signed-off-by: Alessandro Rubini <[email protected]>
Acked-by: Juan David Gonzalez Cobas <[email protected]>
Acked-by: Emilio G. Cota <[email protected]>
Acked-by: Samuel Iglesias Gonsalvez <[email protected]>
Acked-by: Rob Landley <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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