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Bastien Curutchet c7a94e96f8 mtd: rawnand: davinci: Implement setup_interface() operation
The setup_interface() operation isn't implemented. It forces the driver
to use the ONFI mode 0, though it could use more optimal modes.

Implement the setup_interface() operation. It uses the
aemif_set_cs_timings() function from the AEMIF driver to update the
chip select timings. The calculation of the register's contents is
directly extracted from §20.3.2.3 of the DaVinci TRM [1]

MAX_TH_PS and MAX_TSU_PS are the worst case timings based on the
Keystone2 and DaVinci datasheets.

[1] : https://www.ti.com/lit/ug/spruh77c/spruh77c.pdf

Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
History 2024-12-24 15:48:00 +01:00
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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 reStructuredText 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.