kumquat-buildroot/boot/barebox/Config.in
Pieter Smith 76165265af barebox: support auxiliary config build
Adds support to build barebox with an auxiliary config.

This is useful for building an SPL (Secondary Program Loader) in
addition to the traditional TPL (Tertiary Program Loader). The
Beaglebone Black for example has two barebox configurations:

- am335x_defconfig builds the full barebox bootloader with device
  tree

- am335x_mlo_defconfig builds the smaller MLO bootloader that loads
  the full barebox bootloader from the eMMC or SD card.

Tested with the following defconfig:

  # architecture
  BR2_arm=y
  BR2_cortex_a8=y
  BR2_ARM_EABIHF=y

  # system
  BR2_TARGET_GENERIC_HOSTNAME="beaglebone"
  BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS=y
  BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW=y

  # filesystem
  BR2_PACKAGE_AM33X_CM3=y
  BR2_TARGET_ROOTFS_EXT2=y
  BR2_TARGET_ROOTFS_EXT2_4=y

  # bootloader
  BR2_TARGET_BAREBOX=y
  BR2_TARGET_BAREBOX_BOARD_DEFCONFIG="am335x"
  BR2_TARGET_BAREBOX_IMAGE_FILE="images/barebox-am33xx-beaglebone.img"
  BR2_TARGET_BAREBOX_CUSTOM_ENV=y
  BR2_TARGET_BAREBOX_CUSTOM_ENV_PATH="board/beaglebone/barebox/barebox.env"
  BR2_TARGET_BAREBOX_AUX=y
  BR2_TARGET_BAREBOX_AUX_BOARD_DEFCONFIG="am335x_mlo"
  BR2_TARGET_BAREBOX_AUX_IMAGE_FILE="images/barebox-am33xx-beaglebone-mlo.img"

  # kernel
  BR2_LINUX_KERNEL=y
  BR2_LINUX_KERNEL_USE_DEFCONFIG=y
  BR2_LINUX_KERNEL_DEFCONFIG="omap2plus"
  BR2_LINUX_KERNEL_ZIMAGE=y

  # use the barebox built-in dtb
  # BR2_LINUX_KERNEL_DTS_SUPPORT is not set

Signed-off-by: Pieter Smith <pieter@boesman.nl>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2016-05-01 14:33:57 +02:00

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config BR2_TARGET_BAREBOX
bool "Barebox"
help
The Barebox bootloader, formerly known as U-Boot v2.
http://www.barebox.org
if BR2_TARGET_BAREBOX
choice
prompt "version"
help
Select the specific Barebox version you want to use
config BR2_TARGET_BAREBOX_LATEST_VERSION
bool "2016.04.0"
config BR2_TARGET_BAREBOX_CUSTOM_VERSION
bool "Custom version"
help
This option allows to use a specific official versions
config BR2_TARGET_BAREBOX_CUSTOM_TARBALL
bool "Custom tarball"
config BR2_TARGET_BAREBOX_CUSTOM_GIT
bool "Custom Git repository"
endchoice
config BR2_TARGET_BAREBOX_CUSTOM_VERSION_VALUE
string "Barebox version"
depends on BR2_TARGET_BAREBOX_CUSTOM_VERSION
if BR2_TARGET_BAREBOX_CUSTOM_TARBALL
config BR2_TARGET_BAREBOX_CUSTOM_TARBALL_LOCATION
string "URL of custom Barebox tarball"
endif
config BR2_TARGET_BAREBOX_VERSION
string
default "2016.04.0" if BR2_TARGET_BAREBOX_LATEST_VERSION
default BR2_TARGET_BAREBOX_CUSTOM_VERSION_VALUE if BR2_TARGET_BAREBOX_CUSTOM_VERSION
default "custom" if BR2_TARGET_BAREBOX_CUSTOM_TARBALL
default BR2_TARGET_BAREBOX_CUSTOM_GIT_VERSION if BR2_TARGET_BAREBOX_CUSTOM_GIT
config BR2_TARGET_BAREBOX_CUSTOM_PATCH_DIR
string "custom patch dir"
help
If your board requires custom patches, add the path to the
directory containing the patches here. The patches must be
named barebox-<version>-<something>.patch.
Most users may leave this empty
if BR2_TARGET_BAREBOX_CUSTOM_GIT
config BR2_TARGET_BAREBOX_CUSTOM_GIT_REPO_URL
string "URL of custom Git repository"
config BR2_TARGET_BAREBOX_CUSTOM_GIT_VERSION
string "Custom Git version"
endif
source boot/barebox/barebox/Config.in
menuconfig BR2_TARGET_BAREBOX_AUX
bool "Build barebox with an auxiliary config"
help
Build barebox with an auxiliary configuration.
Useful for building an SPL (Secondary Program Loader) in
addition to the traditional TPL (Tertiary Program Loader),
such as the X-Loader or MLO for Texas Instruments
processors.
if BR2_TARGET_BAREBOX_AUX
source boot/barebox/barebox-aux/Config.in
endif
endif