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80891e4fcd
sama5d4_xplained has an optional on-board serial DataFlash (AT25DF321A), which does not come populated on board by default. Since the spi0 node does not have any child populated by default, thus no user on sama5d4_xplained, remove it. This avoids the following error in SPI NOR, which reads the values of the pulled downed lines, unrecognizing the flash: spi-nor spi0.0: unrecognized JEDEC id bytes: 00 00 00 00 00 00 Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20210716154739.835738-1-tudor.ambarus@microchip.com
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.