In cases where phys_addr_t/phys_size_t is being printed, it's possible to
use tiny-printf-friendly %pap instead of %llx. For instance, in SPL, with
tiny-printf:

Before the patch:
fdtdec_setup_memory_banksize: DRAM Bank #0: start = 0xx, size = 0xx

After the patch:
fdtdec_setup_memory_banksize: DRAM Bank #0: start = 80000000, size = 40000000

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>

Add get_next_memory_node() function declaration to fdtdec.h to support
iterating through multiple memory nodes in device tree. This function
is used to enumerate memory banks when the system has non-contiguous
or multiple memory regions defined with device_type = "memory".

The function implementation already exists in lib/fdtdec.c (lines
1298-1305) but was missing the public declaration in the header file.
This patch adds the declaration and includes dm/ofnode_decl.h for the
ofnode type definition.

This is needed for platforms that require early memory enumeration
before standard fdtdec_setup_memory_banksize() is called, particularly
for dynamic MMU page table size calculation based on actual DRAM
configuration.

Signed-off-by: Pranav Sanwal <pranav.sanwal@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20260129120021.1328653-2-pranav.sanwal@amd.com

When a bloblist is valid and contains fdt, it explicitly means
a previous boot stage is passing transfer list compliant with
Firmware Handoff specification, thus the fdt from bloblist should
not be overridden with the ones from board or env variables.

Fixes: 70fe23859437 ("fdt: Allow the devicetree to come from a bloblist")
Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

Evgeny Bachinin <EABachinin@salutedevices.com> says:

The 1st patch addresses comments from the post-review, available by
link [1].

  The 2nd patch fixes problems of dtb_dt_embedded() with checkpatch.

Links:
[1] https://lore.kernel.org/u-boot/CAFLszTgEKamsa6FTnjzrEWQBLkqAR7EBbZqffx09AKgQ7ppuVA@mail.gmail.com/#t

Link: https://lore.kernel.org/r/20241211-dtb_dt_embedded_within_fdtdec-v1-0-7840469f0084@salutedevices.com

Patch fixes the checkpatch warnings like:
```
  WARNING: Use 'if (IS_ENABLED(CONFIG...))' instead of '#if or #ifdef'
  #94: FILE: lib/fdtdec.c:102:
  +#ifdef CONFIG_OF_EMBED
```

Signed-off-by: Evgeny Bachinin <EABachinin@salutedevices.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

  Patch keeps the access to dtb_dt_embedded() within fdtdec API,
by means of new API function introduction. This new function is a
common place for updating appropriate global_data fields for
OF_EMBED case.

  Also, the consequence of the patch is movement of '___dtb_dt_*begin'
symbols' declaration from header file, because nobody used symbols
outside the lib/fdtdec.c.

Signed-off-by: Evgeny Bachinin <EABachinin@salutedevices.com>
Suggested-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

This returns a devicetree and updates a parameter with an error code.
Swap it, since this fits better with the way U-Boot normally works. It
also (more easily) allows leaving the existing pointer unchanged.

No yaks were harmed in this change, but there is a very small code-size
reduction.

For sifive, the OF_BOARD option must be set for the function to be
called, so there is no point in checking it again. Also OF_SEPARATE is
defined always.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
[trini: Update total_compute]
Signed-off-by: Tom Rini <trini@konsulko.com>

The condition for receiving a bloblist from TPL is reversed. This was
only noticed are the other fixes landed. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>

It might happen that CONFIG_GZIP and CONFIG_LZO are enabled but we might
have CONFIG_MULTI_DTB_FIT_LZO enabled in this case in the code path of
uncompress_blob() we parse the gzip headers first which results in
`Error: Bad gzipped data` being printed. To avoid this parse the gzip/lzo
headers only when dependencies have met.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Tom Rini <trini@konsulko.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.