diff options
author | Pieter Smith <pieter@boesman.nl> | 2016-04-24 23:15:24 +0200 |
---|---|---|
committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2016-05-01 14:33:57 +0200 |
commit | 76165265afdae1cb41f1b7523f06beb23b84d41c (patch) | |
tree | 74d553c00659c402d399458ba173c0b5ba8a2bae /boot/barebox | |
parent | 4ce611b9870280a424bf7e30833da9fa70ca6801 (diff) |
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>
Diffstat (limited to 'boot/barebox')
-rw-r--r-- | boot/barebox/Config.in | 16 | ||||
-rw-r--r-- | boot/barebox/barebox-aux/Config.in | 59 | ||||
l--------- | boot/barebox/barebox-aux/barebox-aux.hash | 1 | ||||
-rw-r--r-- | boot/barebox/barebox-aux/barebox-aux.mk | 8 | ||||
-rw-r--r-- | boot/barebox/barebox.mk | 1 |
5 files changed, 85 insertions, 0 deletions
diff --git a/boot/barebox/Config.in b/boot/barebox/Config.in index e25b14bd6..0bb19d36a 100644 --- a/boot/barebox/Config.in +++ b/boot/barebox/Config.in @@ -66,4 +66,20 @@ 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 diff --git a/boot/barebox/barebox-aux/Config.in b/boot/barebox/barebox-aux/Config.in new file mode 100644 index 000000000..35aadc0e4 --- /dev/null +++ b/boot/barebox/barebox-aux/Config.in @@ -0,0 +1,59 @@ +choice + prompt "Barebox configuration" + default BR2_TARGET_BAREBOX_AUX_USE_DEFCONFIG + +config BR2_TARGET_BAREBOX_AUX_USE_DEFCONFIG + bool "Using a defconfig" + +config BR2_TARGET_BAREBOX_AUX_USE_CUSTOM_CONFIG + bool "Using a custom config file" + +endchoice + +config BR2_TARGET_BAREBOX_AUX_BOARD_DEFCONFIG + string "board defconfig" + depends on BR2_TARGET_BAREBOX_AUX_USE_DEFCONFIG + help + Name of the board for which Barebox should be built, without + the _defconfig suffix. + +config BR2_TARGET_BAREBOX_AUX_CUSTOM_CONFIG_FILE + string "Configuration file path" + depends on BR2_TARGET_BAREBOX_AUX_USE_CUSTOM_CONFIG + help + Path to the barebox configuration file + +config BR2_TARGET_BAREBOX_AUX_CONFIG_FRAGMENT_FILES + string "Additional configuration fragment files" + help + A space-separated list of configuration fragment files, + that will be merged to the main Barebox configuration file. + +config BR2_TARGET_BAREBOX_AUX_IMAGE_FILE + string "Image filename" + help + Name of the generated barebox image, which will be copied to + the images directory. + + If left empty, defaults to: + - barebox.bin for barebox versions older than 2012.10. + - barebox-flash-image for later versions. + +config BR2_TARGET_BAREBOX_AUX_CUSTOM_ENV + bool "Generate an environment image" + help + Generate a custom environment image. This environment will + contain the variables and scripts to be used at boot by + barebox. + +config BR2_TARGET_BAREBOX_AUX_CUSTOM_ENV_PATH + string "Environment path" + depends on BR2_TARGET_BAREBOX_AUX_CUSTOM_ENV + help + Path to the directory containing the custom barebox + environment. Depending on your setup, it will probably be + based on either the content of the defaultenv or + defaultenv-2 directories in the barebox source code, plus + the additions needed. The output will be an image in the + barebox devfs format, stored in the images directory, with + the same name as the directory name given here. diff --git a/boot/barebox/barebox-aux/barebox-aux.hash b/boot/barebox/barebox-aux/barebox-aux.hash new file mode 120000 index 000000000..b6462b808 --- /dev/null +++ b/boot/barebox/barebox-aux/barebox-aux.hash @@ -0,0 +1 @@ +../barebox.hash
\ No newline at end of file diff --git a/boot/barebox/barebox-aux/barebox-aux.mk b/boot/barebox/barebox-aux/barebox-aux.mk new file mode 100644 index 000000000..fb287d361 --- /dev/null +++ b/boot/barebox/barebox-aux/barebox-aux.mk @@ -0,0 +1,8 @@ +################################################################################ +# +# barebox-aux +# +################################################################################ + +# Instantiate the auxiliary barebox package +$(eval $(barebox-package)) diff --git a/boot/barebox/barebox.mk b/boot/barebox/barebox.mk index 8b83bf2bb..949fb9fe3 100644 --- a/boot/barebox/barebox.mk +++ b/boot/barebox/barebox.mk @@ -143,3 +143,4 @@ endef barebox-package=$(call inner-barebox-package,$(call UPPERCASE,$(pkgname))) include boot/barebox/barebox/barebox.mk +include boot/barebox/barebox-aux/barebox-aux.mk |