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PCIe in AM57x/DRA7x devices is by default configured to work in GEN2 mode. However there may be situations when working in GEN1 mode is desired. One example is limitation i925 (PCIe GEN2 mode not supported at junction temperatures < 0C). Add support to force Root Complex to work in GEN1 mode if so desired, but don't force GEN1 mode on any board just yet. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.