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Diffstat (limited to 'Documentation/user/defaultenv-2.rst')
| -rw-r--r-- | Documentation/user/defaultenv-2.rst | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/Documentation/user/defaultenv-2.rst b/Documentation/user/defaultenv-2.rst index a79ae83d56..a01a70fa93 100644 --- a/Documentation/user/defaultenv-2.rst +++ b/Documentation/user/defaultenv-2.rst @@ -19,13 +19,18 @@ All new boards should use defaultenv-2 exclusively. The default environment is composed from different directories during compilation:: - defaultenv/defaultenv-2-base -> base files - defaultenv/defaultenv-2-dfu -> overlay for DFU - defaultenv/defaultenv-2-menu -> overlay for menus - arch/$ARCH/boards/<board>/env -> board specific overlay + defaultenv/defaultenv-2-base -> base files + defaultenv/defaultenv-2-dfu -> overlay for DFU + defaultenv/defaultenv-2-reboot-mode -> overlay for reboot modes + defaultenv/defaultenv-2-menu -> overlay for menus + arch/$ARCH/boards/<board>/defaultenv-<board> -> board specific overlay + $(CONFIG_DEFAULT_ENVIRONMENT_PATH) -> config specific overlay The content of the above directories is applied one after another. If the -same file exists in a later overlay, it will overwrite the preceding one. +same file exists in a later overlay, it will overwrite the preceding one. The +board specific overlay, or overlays, could be at any path, but usually follows +the form given. They must be added to a Makefile in ``bbenv-y`` and +``defaultenv_append_directory()`` used to add them in board init code. Note that not all of the above directories will necessarily be included in your default environment, it depends on your barebox @@ -37,6 +42,7 @@ and their respective included directories in ``defaultenv/Makefile``: bbenv-$(CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW) += defaultenv-2-base bbenv-$(CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW_MENU) += defaultenv-2-menu bbenv-$(CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW_DFU) += defaultenv-2-dfu + bbenv-$(CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW_REBOOT_MODE) += defaultenv-2-reboot-mode bbenv-$(CONFIG_DEFAULT_ENVIRONMENT_GENERIC) += defaultenv-1 /env/bin/init @@ -138,3 +144,11 @@ there will be a file ``eth0`` with a content like this: # put code to discover eth0 (i.e. 'usb') to /env/network/eth0-discover exit 0 + +/env/bmode/ +----------- + +This contains the files to be sourced when barebox detects that the OS +had requested a specific :ref:`reboot_mode` (via e.g. ``reboot bootloader`` +under Linux). After the ``/env/init`` scripts were executed, barebox will +``source /env/bmode/${global.system.reboot_mode.prev}`` if available. |