u-boot.git/arch/arm/cpu/armv7m, branch master

arm: Add ARMv8-M aarch32 support

2026-04-13T23:34:02+00:00

Add configuration for ARMv8-M aarch32 core, which are currently
Cortex-M23/M33 cores. These cores are treated similar to ARMv7-M
cores, except the code has to be compiled with matching compiler
-march=armv8-m.main flag . These cores have no MMU, they have MPU,
which is currently not configured.

Unlike ARMv7-M, these cores have 512 interrupt vectors. While the
SYS_ARM_ARCH should be set to 8, it is set to 7 because all of the
initialization code is built from arch/arm/cpu/armv7m and not armv8.
Furthermore, CONFIG_ARM64 must be disabled, although DTs for devices
using these cores do come from arch/arm64/boot/dts.

To avoid excess duplication in Makefiles, introduce one new Kconfig
symbol, CPU_V7M_V8M. The CPU_V7M_V8M cover both ARMv7-M and ARMv8-M
cores.

Signed-off-by: Marek Vasut 
Acked-by: Udit Kumar

spl: split spl_board_fixups to arch/board specific

2025-10-22T18:05:52+00:00

The current spl_board_fixups API allows for modification of spl_image
before the SPL jumps to it. This can be used to modify the DT for the
next boot stage, however the current API only allows either the machine
arch or the board to use it.

This limits the utility of the API as there might be certain fixups that
should be applied to all boards sharing the same machine architecture
with others being board specific.

For TI's K3 specifically, this prevents us from performing architecture
level fixups since a lot of TI boards are already making use of the
spl_board_fixups API.

Therefore this patch splits the API into two to allow both board and the
architecture specific fixups. The order is kept as arch then board to
give board specific fixups the precedence.

Reviewed-by: Dhruva Gole 
Signed-off-by: Anshul Dalal 
Tested-by: Wadim Egorov

arm: cpu: armv7m: add ENTRY/ENDPROC macros

2025-05-22T16:57:12+00:00

Since GNU binutils version 2.44, assembly functions must include
the assembler directive .type name, %function. If not a call to
these functions fails with the error message 'Unknown destination
type (ARM/Thumb)' and the error message 'dangerous relocation:
unsupported relocation' at linking.

The macros ENTRY/ENDPROC includes this directive and should be
used for all assembly functions.

Signed-off-by: Johannes Krottmayer 
Cc: Tom Rini 
Reviewed-by: Tom Rini

treewide: Add a function to change page permissions

2025-03-14T11:37:54+00:00

For armv8 we are adding proper page permissions for the relocated U-Boot
binary. Add a weak function that can be used across architectures to change
the page permissions

Tested-by: Neil Armstrong  # on AML-S905X-CC
Signed-off-by: Ilias Apalodimas

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

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

2024-05-19T14:16:36+00:00

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

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

arm: Remove and add needed includes

2024-05-06T21:06:34+00:00

Remove  from the remainder of the files under arch/arm and
when needed add missing include files directly.

Signed-off-by: Tom Rini

global: Move remaining CONFIG_SYS_* to CFG_SYS_*

2022-12-05T21:06:08+00:00

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.

Signed-off-by: Tom Rini 
Reviewed-by: Simon Glass

common: spl: move armv7m-specific code to spl_perform_fixups()

2022-01-18T13:31:02+00:00

Factor out armv7m fragment to spl_perform_fixups(), which is an arch/board
specific function designed for this purpose.

Reviewed-by: Simon Glass 
Signed-off-by: Ovidiu Panait

reset: Remove addr parameter from reset_cpu()

2021-03-02T19:03:02+00:00

Historically, the reset_cpu() function had an `addr` parameter which was
meant to pass in an address of the reset vector location, where the CPU
should reset to.  This feature is no longer used anywhere in U-Boot as
all reset_cpu() implementations now ignore the passed value.  Generic
code has been added which always calls reset_cpu() with `0` which means
this feature can no longer be used easily anyway.

Over time, many implementations seem to have "misunderstood" the
existence of this parameter as a way to customize/parameterize the reset
(e.g.  COLD vs WARM resets).  As this is not properly supported, the
code will almost always not do what it is intended to (because all
call-sites just call reset_cpu() with 0).

To avoid confusion and to clean up the codebase from unused left-overs
of the past, remove the `addr` parameter entirely.  Code which intends
to support different kinds of resets should be rewritten as a sysreset
driver instead.

This transformation was done with the following coccinelle patch:

    @@
    expression argvalue;
    @@
    - reset_cpu(argvalue)
    + reset_cpu()

    @@
    identifier argname;
    type argtype;
    @@
    - reset_cpu(argtype argname)
    + reset_cpu(void)
    { ... }

Signed-off-by: Harald Seiler 
Reviewed-by: Simon Glass