[Bug 1870985] Re: RFE: Enable autoboot strings by default

[Dave Jones]

Sorry this got missed in focal. Unfortunately, it didn't really fit with
the plans at the time as we were migrating away from u-boot in the boot
sequence. I'm going to mark this "won't fix" as jammy ultimately
finished that migration by forcing u-boot out of the config.txt file
(and questing / LTS+1 will be excising any u-boot binaries that exist on
the boot partition).

** Changed in: u-boot (Ubuntu)
       Status: Confirmed => Won't Fix

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Title:
  RFE: Enable autoboot strings by default

Status in u-boot package in Ubuntu:
  Won't Fix

Bug description:
  This is a feature request as opposed to a bug.

  I would be super handy to have the following settings enabled by
  default in the Raspberry Pi Ubuntu u-boot package.

  CONFIG_AUTOBOOT_KEYED
  CONFIG_AUTOBOOT_DELAY_STR "delay"
  CONFIG_AUTOBOOT_STOP_STR "stop"

  The documentation for these settings is here:
  https://gitlab.denx.de/u-boot/custodians/u-boot-
  raspberrypi/-/blob/master/doc/README.autoboot

  Many of us using Ubuntu on Raspberry Pi are using the serial ports for
  connecting various devices/hats. As Ubuntu currently ships, any
  character received on the serial port will halt the boot process.
  Devices, such as GPS receivers, typically have a regular stream of
  output that, when attached at boot, cause u-boot to halt.

  By setting the above settings (or something similar) it will require a
  specific string to be entered to halt u-boot, instead of any
  character.

  Reconfiguring u-boot to not abort on any character is quite hard and
  poorly documented.

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