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The current brcmstb driver works for Arm and Arm64. A few things are
modified here for us to support MIPs as well.
o There are four outbound range register groups and each directs a window
of up to 128MB. Even though there are four 128MB DT "ranges" in the
bmips PCIe DT node, these ranges are contiguous and are collapsed into
a single range by the OF range parser. Now the driver assumes a single
range -- for MIPs only -- and splits it back into 128MB sizes.
o For bcm7425, the config space accesses must be 32-bit reads or
writes. In addition, the 4k config space register array is missing
and not used.
o The registers for the upper 32-bits of the outbound window address do
not exist.
o Burst size must be set to 256 (this refers to an internal bus).
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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.