39d9556623
The Puma SoM allows to select in hardware directly which storage medium to try for loading the bootloader, either SPI-NOR followed by eMMC followed by SD card, or SD card only. This signal is exposed on the Q7 connector and allows carrierboards to control it however they want. This feedback pin allows to know in which state the SoM currently is and provided the current state isn't modified until next reboot, know from which storage medium the bootloader could be loaded from next time. Signed-off-by: Vahe Grigoryan <vahe.grigoryan@theobroma-systems.com> Link: https://lore.kernel.org/r/20231214122801.3144180-2-vahe.grigoryan@theobroma-systems.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.