dd2784c01d
The INIT_B pin reports the status during startup and after the end of the programming process. However the current driver completely ignores it. Check the pin status during startup to make sure programming is never started too early and also to detect any hardware issues in the FPGA connection. This is optional for backward compatibility. If INIT_B is not passed by device tree, just fallback to the old udelays. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Moritz Fischer <mdf@kernel.org>
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.