The board/common/uboot/extras.config was updated with CONFIG_MMC_PCI
*after* we last built the SparX5i bootloader, and this was really only
needed for the Qemu build, so let's move the requirement there.
Also, we now (Buildroot 2025.02) need to update the dependencies for the
Fireant bootloader with libbsd (for some reason) and dtc, of course.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
If we receive an option 67 (bootfile) matching http://IP/rootfs.itb,
use U-Boot's wget implementation to download the file. The web server
must listen on port 80. tftp:// is also supported.
Without a protocol prefix, assume that the bootfile should be fetched
using TFTP from ${serverip}.
Generate a boot menu, accessible with C-c during a short window, where
a user can interactively select a custom boot source and/or trigger a
factory reset of the device.
With this in place, we should always be able to unbrick a device, as
the image can be fed over the network, and local data can be ignored
by opting in to a factory reset.
This ensures that U-Boot images that we build can always:
- Rely on the environment extensions in env.dtsi being available
- Access the configured signing keys
- Use SD/eMMC cards
- Extract files from SquashFS filesystems
All of which are foundations that we intend to design our image
loading around.
Joachim Wiberg