linux-toradex.git/arch/m68k/coldfire, branch master

m68k: coldfire/5441x: register mcf-rcm-reset platform device

2026-08-11T06:17:10+00:00

Add SoC-level registration of the mcf-rcm-reset platform device so the
power_on_reason sysfs attribute is created on every MCF5441x board
without per-board boilerplate.

Signed-off-by: Jean-Michel Hautbois 
Signed-off-by: Greg Ungerer

m68k/coldfire: replace linux/gpio.h inclusions

2026-08-11T06:17:10+00:00

linux/gpio.h should no longer be used, convert these instead to
linux/gpio/legacy.h for coldfire.

Acked-by: Bartosz Golaszewski 
Signed-off-by: Arnd Bergmann 
Signed-off-by: Greg Ungerer

m68k: coldfire: fix breakage of missed IO access update

2026-07-20T00:20:53+00:00

Fix the last remaining breakage caused by missing a SoC IO access
update. Commit e1f3a00670d1 ("m68k: coldfire: use ColdFire specifc
IO access in SoC code") missed this read16() call which should be
mcf_read16().

Fixes: e1f3a00670d1 ("m68k: coldfire: use ColdFire specifc IO access in SoC code")
Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202607180731.U4tiwFcQ-lkp@intel.com/
Signed-off-by: Greg Ungerer

m68k: coldfire: fix breakage of missed IO access updates

2026-07-08T12:51:54+00:00

Commit e1f3a00670d1 ("m68k: coldfire: use ColdFire specifc IO access in
SoC code") incorrectly updated a couple of local IO access uses. They
use "read8" when they should be using the new "mcf_read8". Fix them.

This causes compile time breakage for two specific SoC types, the ColdFire
5235 and 5282. They got missed in original testing due to not having
any defconfigs for these specific parts.

Fixes: e1f3a00670d1 ("m68k: coldfire: use ColdFire specifc IO access in SoC code")
Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202607040536.BiSGmESw-lkp@intel.com/
Acked-by: Arnd Bergmann 
Signed-off-by: Greg Ungerer

m68k: stmark2: enable DACs outputs

2026-06-11T08:02:39+00:00

Enabled DAC0 and DAC1 outpus disabling shared ADC inputs on ADC3 and ADC7.

Reviewed-by: Jonathan Cameron 
Signed-off-by: Angelo Dureghello 
Signed-off-by: Greg Ungerer

m68k: stmark2: add mcf5441x DAC platform devices

2026-06-11T08:02:24+00:00

Add mcf5441x DAC platform devices.

Reviewed-by: Jonathan Cameron 
Signed-off-by: Angelo Dureghello 
Signed-off-by: Greg Ungerer

m68k: stmark2: use ioport.h macros for resources

2026-06-11T08:01:48+00:00

Change resource declaration using DEFINE_RES_*() macros.
DEFINE_DMA_RES() is for a single dma channel, not a range, so used twice.

Also, some drivers assume IRQ resources are from index 1, so just to stay
uniform, moved IRQ resource at index 1.

Signed-off-by: Angelo Dureghello 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Greg Ungerer

m68k: mcf5441x: add clock for DAC channel 1

2026-06-11T08:01:06+00:00

Add missing clock for mcf5441x DAC channel 1.

Signed-off-by: Angelo Dureghello 
Signed-off-by: Greg Ungerer

m68k: mcf5441x: fix clocks numbering

2026-06-11T08:00:53+00:00

Fix clocks numbering, set correct values for eport and DAC,
as per RM Rev 5, 05/2018, table 9.5.

Fixes: bea8bcb12da09 ("m68knommu: Add support for the Coldfire m5441x.")
Fixes: 007f84ede6e3e ("m68k: coldfire: remove private clk_get/clk_put")
Signed-off-by: Angelo Dureghello 
Signed-off-by: Greg Ungerer

m68k: coldfire: use ColdFire specifc IO access in SoC code

2026-06-08T03:15:18+00:00

Convert all ColdFire specific SoC/board setup code to only use the
newly created internal register access methods. This is replacing the
mixed and inconsistent use of readx/writex and __raw_readx/__raw_writex
for internal SoC registers.

Reviewed-by: Arnd Bergmann 
Signed-off-by: Greg Ungerer