linux-toradex.git/arch/arm/mach-footbridge, branch v6.16

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.

Conversion was done with coccinelle plus manual fixups where necessary.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Ingo Molnar

Merge tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2023-02-20T23:28:57+00:00

Pull ARM SoC boardfile updates from Arnd Bergmann
 "Unused boardfile removal for 6.3

  This is a follow-up to the deprecation of most of the old-style board
  files that was merged in linux-6.0, removing them for good.

  This branch is almost exclusively dead code removal based on those
  annotations. Some device driver removals went through separate
  subsystem trees, but the majority is in the same branch, in order to
  better handle dependencies between the patches and avoid breaking
  bisection.

  Unfortunately that leads to merge conflicts against other changes in
  the subsystem trees, but they should all be trivial to resolve by
  removing the files.

  See commit 7d0d3fa7339e ("Merge tag 'arm-boardfiles-6.0' of
  git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") for the
  description of which machines were marked unused and are now removed.

  The only removals that got postponed are Terastation WXL (mv78xx0) and
  Jornada720 (StrongARM1100), which turned out to still have potential
  users"

* tag 'arm-boardfile-remove-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (91 commits)
  mmc: omap: drop TPS65010 dependency
  ARM: pxa: restore mfp-pxa320.h
  usb: ohci-omap: avoid unused-variable warning
  ARM: debug: remove references in DEBUG_UART_8250_SHIFT to removed configs
  ARM: s3c: remove obsolete s3c-cpu-freq header
  MAINTAINERS: adjust SAMSUNG SOC CLOCK DRIVERS after s3c24xx support removal
  MAINTAINERS: update file entries after arm multi-platform rework and mach-pxa removal
  ARM: remove CONFIG_UNUSED_BOARD_FILES
  mfd: remove htc-pasic3 driver
  w1: remove ds1wm driver
  usb: remove ohci-tmio driver
  fbdev: remove w100fb driver
  fbdev: remove tmiofb driver
  mmc: remove tmio_mmc driver
  mfd: remove ucb1400 support
  mfd: remove toshiba tmio drivers
  rtc: remove v3020 driver
  power: remove pda_power supply driver
  ASoC: pxa: remove unused board support
  pcmcia: remove unused pxa/sa1100 drivers
  ...

ARM: footbridge: remove CATS

2023-01-10T22:10:27+00:00

Nobody seems to have a CATS machine any more, so remove
it now, leaving only NetWinder and EBSA285.

Cc: Russell King 
Acked-by: Linus Walleij 
Signed-off-by: Arnd Bergmann

ARM: footbridge: drop unnecessary inclusion

2023-01-09T22:18:16+00:00

isa-rtc.c doesn't use any definition from bcd.h, remove its inclusion

Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20221212135953.212303-1-alexandre.belloni@bootlin.com
Signed-off-by: Arnd Bergmann

Merge branch 'arm-multiplatform-cleanup' of https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc into arm/soc

2022-09-15T20:20:59+00:00

Now that everything except StrongARM is unified under
CONFIG_ARCH_MULTIPLATFORM, the option is rather meaningless
in its current form.

Rework the Kconfig logic to make this useful again, similar
to the way that RISC-V has CONFIG_NONPORTABLE (with the
opposite polarity), this now controls the visibility of
options that get in the way of building generic kernels,
while allowing custom kernels.

One side-effect is that 'randconfig' builds now rarely hit
strongarm machines, rather than testing them three quarters
of the time.

* 'arm-multiplatform-cleanup' of https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: make ARCH_MULTIPLATFORM user-visible
  ARM: fix XIP_KERNEL dependencies
  ARM: Kconfig: clean up platform selection
  ARM: simplify machdirs/platdirs handling
  ARM: remove obsolete Makefile.boot infrastructure

ARM: footbridge: remove custom DMA address handling

2022-09-15T13:59:16+00:00

Footbridge is the last Arm platform that has its own
__virt_to_bus()/__bus_to_virt()/phys_to_dma()/dma_to_phys() abstraction,
but this is just a simple offset now.

For PCI devices, the offset that is programmed into the PCI bridge must
also be set in each device using dma_direct_set_offset().  As Arm does
not have a pcibios_bus_add_device() helper yet, just use a bus notifier
for this.

For the ISA DMA, drivers now pass a non-translated physical address into
set_dma_addr(), so they have to be converted back with the corresponding
isa_bus_to_virt() function and then into the correct bus address with
the offset using the isa_dma_dev.

Tested-by: Marc Zyngier 
Signed-off-by: Arnd Bergmann

ARM: footbridge: move isa-dma support into footbridge

2022-09-09T15:14:34+00:00

The dma-isa.c was shared between footbridge and shark a long time ago,
but as shark was removed, it can be made footbridge specific again.

The fb_dma bits in turn are not used at all and can be removed.

All the ISA related files are now built into the platform regardless
of CONFIG_ISA, as they just refer to on-chip devices rather than actual
ISA cards.

Reviewed-by: Christoph Hellwig 
Tested-by: Marc Zyngier 
Signed-off-by: Arnd Bergmann

ARM: footbridge: remove leftover from personal-server

2022-09-09T15:14:28+00:00

The machine was removed a while ago, and the checks are
now useless.

Reviewed-by: Christoph Hellwig 
Tested-by: Marc Zyngier 
Signed-off-by: Arnd Bergmann

ARM: footbridge: remove addin mode

2022-09-09T15:14:16+00:00

This does not appear to have been used in many years, we can
kill off some of the uglier code.

Among other things, it avoids a randconfig issue when both modes
are disabled:

arch/arm/mach-footbridge/common.c:149:24: error: 'ebsa285_host_io_desc' defined but not used [-Werror=unused-variable]
  149 | static struct map_desc ebsa285_host_io_desc[] __initdata = {
      |                        ^~~~~~~~~~~~~~~~~~~~
arch/arm/mach-footbridge/common.c:136:24: error: 'fb_common_io_desc' defined but not used [-Werror=unused-variable]
  136 | static struct map_desc fb_common_io_desc[] __initdata = {
      |                        ^~~~~~~~~~~~~~~~~

The recently added phys_to_dma() functions are now trivial and
could probably be removed again as a follow-up, if anyone knows
how.

Cc: Christoph Hellwig 
Tested-by: Marc Zyngier 
Signed-off-by: Arnd Bergmann

ARM: Kconfig: clean up platform selection

2022-08-18T14:44:59+00:00

The top-level platform selection is mostly meaningless these days after
almost everything is sorted below the CONFIG_ARCH_MULTIPLATFORM, with
the only exception being the 20+ year old StrongARM based machines.

Make this more consistent by removing the entire choice statement and
moving the StrongARM specific options into regular platform specific
Kconfig files.

The three platforms (footbridge, rpc and sa1100) are still mutually
exclusive and cannot coexist with other ARMv4/v5 machines, but since
there are only three of them and we will not add more, this can be
expressed using Kconfig 'depends on' statements.

Signed-off-by: Arnd Bergmann