With the relatively new button API in U-Boot, it's now much easier to
model the common usecase of mapping arbitrary actions to different
buttons during boot - for example entering fastboot mode, setting some
additional kernel cmdline arguments, or booting with a custom recovery
ramdisk, to name a few.

Historically, this functionality has been implemented in board code,
making it fixed for a given U-Boot binary and requiring the code be
duplicated and modified for every board.

Implement a generic abstraction to run an arbitrary command during boot
when a specific button is pressed. The button -> command mapping is
configured via environment variables with the following format:

  button_cmd_N_name=<button label>
  button_cmd_N=<command to run>

Where N is the mapping number starting from 0. For example:

  button_cmd_0_name=vol_down
  button_cmd_0=fastboot usb 0

This will cause the device to enter fastboot mode if volume down is held
during boot.

After we enter the cli loop the button commands are no longer valid,
this allows the buttons to additionally be used for navigating a boot
menu.

Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # Tegra30
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>

Provide a man-page for the smbios command.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

Documentation:

* add generated index to table of contents
* create index entries for commands
* update Python packages used to build the documentation
* fix typos in dfu documentation

UEFI:

* split unrelated code from efi_bootmgr.c
* rename CONFIG_BOOTEFI_BOOTMGR to CONFIG_EFI_BOOTMGR
* net: tftp: remove explicit EFI configuration dependency
* fs: remove explicit EFI configuration dependency

Other:

* Add Goldfish RTC driver and make it available on RISC-V QEMU

Such a config option does not exist. Rephrase, and avoid mentioning
MEM_SUPPORT_64BIT_DATA, which is an implementation detail.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>

Add the description of CLI commands to the generated index.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Reword some sentences, add missing periods and fix various typos in the
dfu documentation.

This was originally contributed on [1]

[1] https://github.com/Maalobs/u-boot/commit/9a21ed8ba722d904b68945f40ca6697b4b1cc4d4

Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

Now that the cp command is changed to use memmove() internally, update
the documentation to explicitly state that overlapping regions are
allowed.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>

Prepare v2024.01-rc6

If one defines HUSH_MODERN_PARSER, it is then possible to use modern parser with:
=> cli get
old
=> cli set modern
=> cli get
modern

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Francis Laniel <francis.laniel@amarulasolutions.com>

This command can be used to print the current parser with 'cli get'.
It can also be used to set the current parser with 'cli set'.
For the moment, only one value is valid for set: old.

Signed-off-by: Francis Laniel <francis.laniel@amarulasolutions.com>