mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 06:00:43 +00:00
db910353a1
At present SPL uses a single stack, either CONFIG_SPL_STACK or CONFIG_SYS_INIT_SP_ADDR. Since some SPL features (such as MMC and environment) require a lot of stack, some boards set CONFIG_SPL_STACK to point into SDRAM. They then set up SDRAM very early, before board_init_f(), so that the larger stack can be used. This is an abuse of lowlevel_init(). That function should only be used for essential start-up code which cannot be delayed. An example of a valid use is when only part of the SPL code is visible/executable, and the SoC must be set up so that board_init_f() can be reached. It should not be used for SDRAM init, console init, etc. Add a CONFIG_SPL_STACK_R option, which allows the stack to be moved to a new address before board_init_r() is called in SPL. The expected SPL flow (for CONFIG_SPL_FRAMEWORK) is documented in the README. Signed-off-by: Simon Glass <sjg@chromium.org> For version 1: Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Bo Shen <voice.shen@atmel.com> Acked-by: Bo Shen <voice.shen@atmel.com> Acked-by: Heiko Schocher <hs@denx.de> Tested-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Rini <trini@konsulko.com>
188 lines
5.5 KiB
Text
188 lines
5.5 KiB
Text
#
|
|
# For a description of the syntax of this configuration file,
|
|
# see Documentation/kbuild/kconfig-language.txt.
|
|
#
|
|
mainmenu "U-Boot $UBOOTVERSION Configuration"
|
|
|
|
config UBOOTVERSION
|
|
string
|
|
option env="UBOOTVERSION"
|
|
|
|
# Allow defaults in arch-specific code to override any given here
|
|
source "arch/Kconfig"
|
|
|
|
menu "General setup"
|
|
|
|
config LOCALVERSION
|
|
string "Local version - append to U-Boot release"
|
|
help
|
|
Append an extra string to the end of your U-Boot version.
|
|
This will show up on your boot log, for example.
|
|
The string you set here will be appended after the contents of
|
|
any files with a filename matching localversion* in your
|
|
object and source tree, in that order. Your total string can
|
|
be a maximum of 64 characters.
|
|
|
|
config LOCALVERSION_AUTO
|
|
bool "Automatically append version information to the version string"
|
|
default y
|
|
help
|
|
This will try to automatically determine if the current tree is a
|
|
release tree by looking for git tags that belong to the current
|
|
top of tree revision.
|
|
|
|
A string of the format -gxxxxxxxx will be added to the localversion
|
|
if a git-based tree is found. The string generated by this will be
|
|
appended after any matching localversion* files, and after the value
|
|
set in CONFIG_LOCALVERSION.
|
|
|
|
(The actual string used here is the first eight characters produced
|
|
by running the command:
|
|
|
|
$ git rev-parse --verify HEAD
|
|
|
|
which is done within the script "scripts/setlocalversion".)
|
|
|
|
config CC_OPTIMIZE_FOR_SIZE
|
|
bool "Optimize for size"
|
|
default y
|
|
help
|
|
Enabling this option will pass "-Os" instead of "-O2" to gcc
|
|
resulting in a smaller U-Boot image.
|
|
|
|
This option is enabled by default for U-Boot.
|
|
|
|
config SYS_MALLOC_F
|
|
bool "Enable malloc() pool before relocation"
|
|
default 0x400
|
|
help
|
|
Before relocation memory is very limited on many platforms. Still,
|
|
we can provide a small malloc() pool if needed. Driver model in
|
|
particular needs this to operate, so that it can allocate the
|
|
initial serial device and any others that are needed.
|
|
|
|
config SYS_MALLOC_F_LEN
|
|
hex "Size of malloc() pool before relocation"
|
|
depends on SYS_MALLOC_F
|
|
default 0x400
|
|
help
|
|
Before relocation memory is very limited on many platforms. Still,
|
|
we can provide a small malloc() pool if needed. Driver model in
|
|
particular needs this to operate, so that it can allocate the
|
|
initial serial device and any others that are needed.
|
|
|
|
menuconfig EXPERT
|
|
bool "Configure standard U-Boot features (expert users)"
|
|
help
|
|
This option allows certain base U-Boot options and settings
|
|
to be disabled or tweaked. This is for specialized
|
|
environments which can tolerate a "non-standard" U-Boot.
|
|
Only use this if you really know what you are doing.
|
|
|
|
endmenu # General setup
|
|
|
|
menu "Boot images"
|
|
|
|
config SUPPORT_SPL
|
|
bool
|
|
|
|
config SUPPORT_TPL
|
|
bool
|
|
|
|
config SPL
|
|
bool
|
|
depends on SUPPORT_SPL
|
|
prompt "Enable SPL"
|
|
help
|
|
If you want to build SPL as well as the normal image, say Y.
|
|
|
|
config SPL_STACK_R
|
|
depends on SPL
|
|
bool "Enable SDRAM location for SPL stack"
|
|
help
|
|
SPL starts off execution in SRAM and thus typically has only a small
|
|
stack available. Since SPL sets up DRAM while in its board_init_f()
|
|
function, it is possible for the stack to move there before
|
|
board_init_r() is reached. This option enables a special SDRAM
|
|
location for the SPL stack. U-Boot SPL switches to this after
|
|
board_init_f() completes, and before board_init_r() starts.
|
|
|
|
config SPL_STACK_R_ADDR
|
|
depends on SPL_STACK_R
|
|
hex "SDRAM location for SPL stack"
|
|
help
|
|
Specify the address in SDRAM for the SPL stack. This will be set up
|
|
before board_init_r() is called.
|
|
|
|
config TPL
|
|
bool
|
|
depends on SPL && SUPPORT_TPL
|
|
prompt "Enable TPL"
|
|
help
|
|
If you want to build TPL as well as the normal image and SPL, say Y.
|
|
|
|
config FIT
|
|
bool "Support Flattened Image Tree"
|
|
help
|
|
This option allows to boot the new uImage structrure,
|
|
Flattened Image Tree. FIT is formally a FDT, which can include
|
|
images of various types (kernel, FDT blob, ramdisk, etc.)
|
|
in a single blob. To boot this new uImage structure,
|
|
pass the the address of the blob to the "bootm" command.
|
|
|
|
config FIT_VERBOSE
|
|
bool "Display verbose messages on FIT boot"
|
|
depends on FIT
|
|
|
|
config FIT_SIGNATURE
|
|
bool "Enable signature verification of FIT uImages"
|
|
depends on FIT
|
|
depends on DM
|
|
select RSA
|
|
help
|
|
This option enables signature verification of FIT uImages,
|
|
using a hash signed and verified using RSA. If
|
|
CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
|
|
hashing is available using hardware, RSA library will use it.
|
|
See doc/uImage.FIT/signature.txt for more details.
|
|
|
|
config SYS_EXTRA_OPTIONS
|
|
string "Extra Options (DEPRECATED)"
|
|
help
|
|
The old configuration infrastructure (= mkconfig + boards.cfg)
|
|
provided the extra options field. If you have something like
|
|
"HAS_BAR,BAZ=64", the optional options
|
|
#define CONFIG_HAS
|
|
#define CONFIG_BAZ 64
|
|
will be defined in include/config.h.
|
|
This option was prepared for the smooth migration from the old
|
|
configuration to Kconfig. Since this option will be removed sometime,
|
|
new boards should not use this option.
|
|
|
|
config SYS_TEXT_BASE
|
|
depends on SPARC || ARC
|
|
hex "Text Base"
|
|
help
|
|
TODO: Move CONFIG_SYS_TEXT_BASE for all the architecture
|
|
|
|
config SYS_CLK_FREQ
|
|
depends on ARC
|
|
int "CPU clock frequency"
|
|
help
|
|
TODO: Move CONFIG_SYS_CLK_FREQ for all the architecture
|
|
|
|
endmenu # Boot images
|
|
|
|
source "common/Kconfig"
|
|
|
|
source "dts/Kconfig"
|
|
|
|
source "net/Kconfig"
|
|
|
|
source "drivers/Kconfig"
|
|
|
|
source "fs/Kconfig"
|
|
|
|
source "lib/Kconfig"
|
|
|
|
source "test/Kconfig"
|