buildroot/boot/barebox, branch 2016.11

core: introduce per br2-external NAME

2016-10-16T11:01:02+00:00

This unique NAME is used to construct a per br2-external tree variable, BR2_EXTERNAL_$(NAME)_PATH, which contains the path to the br2-external tree. This variable is available both from Kconfig (set in the Kconfig snippet) and from the .mk files. Also, display the NAME and its path as a comment in the menuconfig. This will ultimately allow us to support multiple br2-external trees at once, with that NAME (and thus BR2_EXTERNAL_$(NAME)) uniquely defining which br2-external tree is being used. The obvious outcome is that BR2_EXTERNAL should now no longer be used to refer to the files in the br2-external tree; that location is now known from the BR2_EXTERNAL_$(NAME)_PATH variable instead. This means we no longer need to expose, and must stop from from exposing BR2_EXTERNAL as a Kconfig variable. Finally, this also fixes a latent bug in the pkg-generic infra, where we would so far always refer to BR2_EXTERNAL (even if not set) to filter the names of packages (to decide whether they are a bootloader, a toolchain or a simple package). Note: since the variables in the Makefile and in Kconfig are named the same, the one we computed early on in the Makefile will be overridden by the one in .config when we have it. Thus, even though they are set to the same raw value, the one from .config is quoted and, being included later in the Makefile, will take precedence, so we just re-include the generated Makefile fragment a third time before includeing the br2-external's Makefiles. That's unfortunate, but there is no easy way around that as we do want the two variables to be named the same in Makefile and Kconfig (and we can't ask the user to un-quote that variable himself either), hence this little dirty triple-inclusion trick. Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Cc: Arnout Vandecappelle Cc: Romain Naour Signed-off-by: Peter Korsgaard

Merge branch 'next'

2016-09-02T14:20:33+00:00

Quite some conflicts, so here goes .. Signed-off-by: Peter Korsgaard

barebox: bump version to 2016.08

2016-08-16T10:56:41+00:00

Signed-off-by: Raphael Poggi Signed-off-by: Peter Korsgaard

barebox: fix ARCH value for arm64

2016-08-16T06:05:05+00:00

barebox 2016.08 added arm64 support using ARCH=arm. [Peter: extend commit message to clarify] Signed-off-by: Raphael Poggi Signed-off-by: Peter Korsgaard

barebox: bump to version 2016.06.0

2016-06-23T19:07:17+00:00

Signed-off-by: Fabio Porcedda Signed-off-by: Peter Korsgaard

boot/barebox: use the generic help rules

2016-06-07T20:12:08+00:00

Signed-off-by: "Yann E. MORIN" Cc: Arnout Vandecappelle Cc: Thomas Petazzoni [Thomas: don't use the helper.] Signed-off-by: Thomas Petazzoni

barebox: bump to version 2016.05.0

2016-05-11T21:06:36+00:00

Signed-off-by: Fabio Estevam Signed-off-by: Peter Korsgaard

barebox: add an option to embed environment image

2016-05-06T13:48:01+00:00

Barebox provides an option to embed a custom environment image into barebox binary. This image will be used, when the environment found in the environment sector is invalid. Both embedded and external images can be used together, so having both options at the same time is justified. This patch sets barebox Kconfig option CONFIG_DEFAULT_ENVIRONMENT_PATH to user specified path. This way one can use such BR's variables like BR2_EXTERNAL, TOPDIR etc. to provide paths to custom environment folders. Cc: Pieter Smith Signed-off-by: Yegor Yefremov Signed-off-by: Thomas Petazzoni

barebox: support auxiliary config build

2016-05-01T12:33:57+00:00

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 Signed-off-by: Thomas Petazzoni

barebox: prepare for auxiliarry build

2016-05-01T12:27:45+00:00

No functional changes. In preparation for the auxiliary barebox build, boot/barebox is split into two parts: 1. boot/barebox: - The source and patch specification which are to be shared between the barebox and barebox-aux packages. - The barebox-package function and build logic. 2. boot/barebox/barebox: - The package configuration, fragments, barebox env, etc. - The actual barebox package make instantiation. Signed-off-by: Pieter Smith Signed-off-by: Thomas Petazzoni