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README: Correct docs for CONFIG_SPL_BUILD

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This option is defined in both SPL and TPL builds, so correct the docs
related to this. Also point to spl_phase() which is normally a better
option. Mention VPL as well.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Simon Glass
2023-11-18 14:04:50 -07:00
committed by Tom Rini
parent b1f8b56f45
commit 1d38722e01
1 changed files with 18 additions and 8 deletions
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26
README
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@@ -1545,16 +1545,26 @@ Low Level (hardware related) configuration options:
globally (CONFIG_CMD_MEMORY).
- CONFIG_SPL_BUILD
Set when the currently-running compilation is for an artifact
that will end up in the SPL (as opposed to the TPL or U-Boot
proper). Code that needs stage-specific behavior should check
this.
Set when the currently running compilation is for an artifact
that will end up in one of the 'xPL' builds, i.e. SPL, TPL or
VPL. Code that needs phase-specific behaviour can check this,
or (where possible) use spl_phase() instead.
Note that CONFIG_SPL_BUILD *is* always defined when either
of CONFIG_TPL_BUILD / CONFIG_VPL_BUILD is defined. This can be
counter-intuitive and should perhaps be changed.
- CONFIG_TPL_BUILD
Set when the currently-running compilation is for an artifact
that will end up in the TPL (as opposed to the SPL or U-Boot
proper). Code that needs stage-specific behavior should check
this.
Set when the currently running compilation is for an artifact
that will end up in the TPL build (as opposed to SPL, VPL or
U-Boot proper). Code that needs phase-specific behaviour can
check this, or (where possible) use spl_phase() instead.
- CONFIG_VPL_BUILD
Set when the currently running compilation is for an artifact
that will end up in the VPL build (as opposed to the SPL, TPL
or U-Boot proper). Code that needs phase-specific behaviour can
check this, or (where possible) use spl_phase() instead.
- CONFIG_ARCH_MAP_SYSMEM
Generally U-Boot (and in particular the md command) uses