u-boot.git/arch/m68k/include/asm, branch next

m68k: Fix writew(), writel(), readw(), readl() endianness for classic m68k

2026-05-22T22:47:54+00:00

In Linux these are meant to read a little-endian value and swap
to the CPU endian.

In u-boot for m68k this is currently broken and prevents
virtio-mmio from functioning.

This change is only for classic m68k. Coldfire has read big-endian,
no swap for these in u-boot and Linux and existing drivers probably
depend on this.

Tested-by: Angelo Dureghello 
Reviewed-by: Simon Glass 
Acked-by: Kuan-Wei Chiu 
Acked-by: Angelo Dureghello 
Signed-off-by: Daniel Palmer

m68k: mcf5441x: create stub to use imx drivers

2026-05-04T20:19:49+00:00

Some NXP imx hardware ip module as the esdhc controller are exactly the
same in some new ColdFire cpus. For the specific case, mcf5441x needs to
use the existing fsl_esdhc_imx.c driver for the esdhc device.

Create a stub to be able to use NXP "imx" serie drivers as the
fsl_esdhc_imx in the ColdFire architecture.

Signed-off-by: Angelo Dureghello

m68k: Add support for M68040 CPU

2026-02-02T20:24:41+00:00

Add support for the Motorola 68040 architecture. Currently, m68k
support in U-Boot is primarily focused on ColdFire variants. Introduce
the necessary infrastructure to support the classic M680x0 series,
specifically targeting the M68040 as emulated by QEMU.

The implementation includes exception vectors, early startup code, and
minimal CPU initialization and relocation stubs. It also defines the
standard m68k boot information structure used for passing hardware
information to the operating system. To ensure compatibility, ColdFire-
specific library objects such as cache and interrupt handling are
excluded from the build when M68040 is selected.

Additionally, apply a specific workaround during the early memory
reservation stage. Use a manual loop to clear global data instead of
the standard memset() function, as utilizing memset() at this point was
observed to cause a hang on the QEMU platform.

Signed-off-by: Kuan-Wei Chiu 
Acked-by: Angelo Dureghello 
Reviewed-by: Simon Glass

m68k: drop pointless #if 0 block

2025-06-13T22:57:15+00:00

The way DECLARE_GLOBAL_DATA_PTR is used, the stuff under #if 0 can
never compile as you cannot have a non-constant initializer at global
scope (and one would get linker errors as well because the 'gd' symbol
would be defined in multiple TUs).

Signed-off-by: Rasmus Villemoes 
Acked-by: Angelo Dureghello

m68k: drop volatile qualifier from gd pointer

2025-06-13T22:57:15+00:00

Signed-off-by: Rasmus Villemoes

m68k: asm/ptrace.h: include linux/types.h

2024-10-23T04:52:38+00:00

Modifying a generic header like watchdog.h, removing not directly used
asm/ptrace.h header relies on whoever includes it to already have
included something that defines the type ulong.

Make the asm/ptrace.h header self-contained by including the proper
header.

Signed-off-by: Rasmus Villemoes 
Reviewed-by: Tom Rini 
Reviewed-by: Stefan Roese

global_data: Move pci_clk to m68k and powerpc

2024-08-26T20:05:37+00:00

Only m68k and powerpc use this field, so move it to the arch-specific
info, to reduce the size for other archs.

Signed-off-by: Simon Glass

m68k: Remove duplicate newlines

2024-07-15T18:12:18+00:00

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut

m68k: Rename icache_invalid to invalidate_icache_all

2024-07-03T20:42:01+00:00

The implementation of icache_invalid appears to be doing what other
architectures call invalidate_icache_all so rename to match.

Reviewed-by: Ilias Apalodimas 
Signed-off-by: Tom Rini

Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"

2024-05-20T19:35:03+00:00

As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman 
Signed-off-by: Tom Rini