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spl: support TPL_STACK, TPL_MAX_SIZE and TPL_TEXT_BASE via Kconfig

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Let's clean up behind ourselves and move the (newly defined)
TPL_STACK, TPL_MAX_SIZE and TPL_TEXT_BASE into Kconfig.  Given that
0x0 might be considered to be valid values for TPL_TEXT_BASE and
TPL_STACK, we need to introduce helper config options
("TPL_NEEDS_SEPARATE_...") to indicate that these symbols are used
(and not inherited from their SPL variants) for any given
target-platform.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Philipp Tomsich 2017-07-28 20:02:34 +02:00
parent d9d1242b82
commit b3ed6ce780
1 changed files with 39 additions and 0 deletions
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39
common/spl/Kconfig
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@ -726,6 +726,45 @@ config TPL_LDSCRIPT
U-Boot stage. Set this to the path of the linker-script to U-Boot stage. Set this to the path of the linker-script to
be used for TPL. be used for TPL.
May be left empty to trigger the Makefile infrastructure to
fall back to the linker-script used for the SPL stage.
config TPL_NEEDS_SEPARATE_TEXT_BASE
bool "TPL needs a separate text-base"
default n
depends on TPL
help
Enable, if the TPL stage should not inherit its text-base
from the SPL stage. When enabled, a base address for the
.text sections of the TPL stage has to be set below.
config TPL_NEEDS_SEPARATE_STACK
bool "TPL needs a separate initial stack-pointer"
default n
depends on TPL
help
Enable, if the TPL stage should not inherit its initial
stack-pointer from the settings for the SPL stage.
config TPL_TEXT_BASE
hex "Base address for the .text section of the TPL stage"
depends on TPL_NEEDS_SEPARATE_TEXT_BASE
help
The base address for the .text section of the TPL stage.
config TPL_MAX_SIZE
int "Maximum size (in bytes) for the TPL stage"
depends on TPL
help
The maximum size (in bytes) of the TPL stage.
config TPL_STACK
hex "Address of the initial stack-pointer for the TPL stage"
depends on TPL_NEEDS_SEPARATE_STACK
help
The address of the initial stack-pointer for the TPL stage.
Usually this will be the (aligned) top-of-stack.
config TPL_BOOTROM_SUPPORT config TPL_BOOTROM_SUPPORT
bool "Support returning to the BOOTROM (from TPL)" bool "Support returning to the BOOTROM (from TPL)"
help help