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On long transfers to the EEPROM device, i.e. write, it is observed that the driver aborts the transfer. The reason for this is that the driver isn't patient enough--the IC_STATUS register's contents is 0x27, which is MST_ACTIVITY | TFE | TFNF | ACTIVITY. That is, while the transmission FIFO is empty, we, the I2C master device, are still driving the bus. Implement the correct procedure to disable the block, as described in the DesignWare I2C Databook, section 3.8.3 Disabling DW_apb_i2c on page 56. Now there are no premature aborts on long data transfers. Cc: Alexander Deucher <Alexander.Deucher@amd.com> Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com> Signed-off-by: Luben Tuikov <luben.tuikov@amd.com> Acked-by: Alexander Deucher <Alexander.Deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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.