diff options
| -rw-r--r-- | Documentation/user/reboot-mode.rst | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/user/reboot-mode.rst b/Documentation/user/reboot-mode.rst index 9321d928f4..8717e39342 100644 --- a/Documentation/user/reboot-mode.rst +++ b/Documentation/user/reboot-mode.rst @@ -1,7 +1,8 @@ .. _reboot_mode: +########### Reboot Mode ------------ +########### To simplify debugging, many BootROMs sample registers that survive a warm reset to customize the boot. These registers can e.g. indicate @@ -23,7 +24,7 @@ modes in the device tree. If a match is found the associated magic is written to the location referenced in the device tree node. User API -~~~~~~~~ +======== Devices registered with the reboot mode API gain two parameters: @@ -46,7 +47,7 @@ priority has its parameters aliased as ``$global.system.reboot_mode.prev`` and ``$global.system.reboot_mode.next``. Reset -~~~~~ +===== Reboot modes can be stored on a syscon wrapping general purpose registers that survives warm resets. If the system instead did reset via an external @@ -57,7 +58,7 @@ reset provider. In barebox, multiple reset providers may co-exist. They ``reset`` command allows listing and choosing a specific reboot mode. Disambiguation -~~~~~~~~~~~~~~ +============== Some uses of reboot modes partially overlap with other barebox functionality. They all ultimately serve different purposes, however. |