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Takeshi Saito f0c8234cb9 mmc: renesas_sdhi: Change HW adjustment register according to speed mode
SCC is used for SDR104/HS200/HS400. We need to change SCC_DT2FF
according to the mode. If it is inappropriate, CRC error tends to occur.

This adds variable "tap_hs400" for HS400 mode and configures SCC_DT2FF
as needed.

Signed-off-by: Takeshi Saito <takeshi.saito.xv@renesas.com>
[wsa: rebased to upstream and updated commit message]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Tested-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
History 2019-02-25 14:45:59 +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 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.