Permit to select a bootmenu entry with a key shortcut. This is
especially useful in production or testing scenario to automate flashing
procedure or testing procedure.

The boot entry are changed to append the shortcut key to it.

Example:
      1. Run default boot command.
      2. Boot system via TFTP.
      3. Boot production system from NAND.
      4. Boot recovery system from NAND.
      5. Load production system via TFTP then write to NAND.
      6. Load recovery system via TFTP then write to NAND.
      7. Load BL31+U-Boot FIP via TFTP then write to NAND.
      8. Load BL2 preloader via TFTP then write to NAND.
      9. Reboot.
      a. Reset all settings to factory defaults.
      0. Exit

0 is always reserved for Exit to console.
On pressing the keyboard key 2, the bootmenu entry 2 is selected and
executed.

Up to 34 key shortcut (0 excluded as reserved) are supported from 1-9
and a-z.
If a shortcut key not present in the bootmenu list is pressed, it is
simply ignored and eventually the autoboot is interrupted.

Capital A-Z are converted to lower a-z and the related option is
selected.

Suggested-by: Weijie Gao <weijie.gao@mediatek.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Tested-by: Petr Štetiar <ynezz@true.cz>

The bootmenu command can display

* menu entries defined by environment variables
* menu entries defined by UEFI boot options

Not in all cases showing the UEFI boot options is desired.
Provide a new parameter '-e' to select the display of UEFI boot options.

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

%s/read/reads/

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

Record the last active menu item and check if it equals to the
current selected item before reprint.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Reviewed-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>

This patch adds a new callback named need_reprint for menu.
The need_reprint will be called before printing the menu. If the
callback exists and returns FALSE, menu printing will be canceled.

This is very useful if the menu was not changed. It can save time
for serial-based menu to handle more input data.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Reviewed-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>

As part of bringing the master branch back in to next, we need to allow
for all of these changes to exist here.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay
Ethernet"' I failed to notice that b4 noticed it was based on next and
so took that as the base commit and merged that part of next to master.

This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing
changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Tom Rini <trini@konsulko.com>

Remove <common.h> from all "cmd/" files and when needed add
missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>

It seems that the U-Boot console entry of the bootmenu has lost
its original meaning. Now, even if it is chosen, the probability
that you will enter the actual U-Boot console is quite low.
Boot env, bootflow, bootcommand script may appear, but not the
actual console. Hence, let's remove ambiguity and name this
entry by what it actually does: 'Exit' the bootmenu.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>

Correct the return code for out-of-memory and no boot option found

Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>