Add support for Dallas/Maxim ds1672 32bit counter RTC.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

emul_rtc_probe() is not called from anywhere else that's why make it
static. Issue is reported by build with W=1.

Signed-off-by: Michal Simek <michal.simek@amd.com>

When setting the time on the MAX31343, the time is not updated
for one second, and reading the time in this interval will give
the old time. Wait one second after writing so that the date
command will show the correct time when setting the clock.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
Cc: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Chris Packham <judge.packham@gmail.com>

An invalid calculation made setting years 2100-2199 impossible.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
Cc: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Chris Packham <judge.packham@gmail.com>

Allow the ZyncMP RTC driver to be enabled on Versal architectures.

Also, require DM_RTC since the driver uses the RTC driver model.

Signed-off-by: Vincent Fazio <vfazio@xes-inc.com>
Link: https://lore.kernel.org/r/20250114135812.2605618-1-vfazio@xes-inc.com
Signed-off-by: Michal Simek <michal.simek@amd.com>

Building qemu_arm64_defconfig with CONFIGS_DM_RTC=n and CONFIGS_RTC_PL031=y
leads to a build failure.

Adjust the vexpress64 configuration to avoid circular dependency.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Simon Glass <sjg@chromium.org> says:

When the SPL build-phase was first created it was designed to solve a
particular problem (the need to init SDRAM so that U-Boot proper could
be loaded). It has since expanded to become an important part of U-Boot,
with three phases now present: TPL, VPL and SPL

Due to this history, the term 'SPL' is used to mean both a particular
phase (the one before U-Boot proper) and all the non-proper phases.
This has become confusing.

For a similar reason CONFIG_SPL_BUILD is set to 'y' for all 'SPL'
phases, not just SPL. So code which can only be compiled for actual SPL,
for example, must use something like this:

   #if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)

In Makefiles we have similar issues. SPL_ has been used as a variable
which expands to either SPL_ or nothing, to chose between options like
CONFIG_BLK and CONFIG_SPL_BLK. When TPL appeared, a new SPL_TPL variable
was created which expanded to 'SPL_', 'TPL_' or nothing. Later it was
updated to support 'VPL_' as well.

This series starts a change in terminology and usage to resolve the
above issues:

- The word 'xPL' is used instead of 'SPL' to mean a non-proper build
- A new CONFIG_XPL_BUILD define indicates that the current build is an
  'xPL' build
- The existing CONFIG_SPL_BUILD is changed to mean SPL; it is not now
  defined for TPL and VPL phases
- The existing SPL_ Makefile variable is renamed to SPL_
- The existing SPL_TPL Makefile variable is renamed to PHASE_

It should be noted that xpl_phase() can generally be used instead of
the above CONFIGs without a code-space or run-time penalty.

This series does not attempt to convert all of U-Boot to use this new
terminology but it makes a start. In particular, renaming spl.h and
common/spl seems like a bridge too far at this point.

The series is fully bisectable. It has also been checked to ensure there
are no code-size changes on any commit.

Use PHASE_ as the symbol to select a particular XPL build. This means
that SPL_TPL_ is no-longer set.

Update the comment in bootstage to refer to this symbol, instead of
SPL_

Signed-off-by: Simon Glass <sjg@chromium.org>

This commit adds support to manage an external regulator to enable the main
power supply VDD.

Signed-off-by: Arturo Buzarra <arturo.buzarra@digi.com>

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>