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The SH7786 has different physical memory layout configurations, configurable through the MMSELR register. The configuration is typically defined by the bootloader, so Linux generally doesn't care. Except that depending on the configuration, some PCI MEM areas may or may not be available. This commit adds a helper function that allows to retrieve the current physical memory layout configuration. It will be used in a following patch to exclude unusable PCI MEM areas during the PCI initialization. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Rich Felker <dalias@libc.org> |
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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.