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136819a6e8
Realtek PHYs implement the concept of so-called "extension pages". The reason for this is probably because these PHYs expose more registers than available in the standard address range. After all read/write operations on such a page are done the driver should switch back to page 0 where the standard MII registers (such as MII_BMCR) are available. When referring to such a register the datasheets of RTL8211E and RTL8211F always specify: - the page / "ext. page" which has to be written to RTL821x_PAGE_SELECT - an address (sometimes also called reg) These new utility functions make the existing code easier to read since it removes some duplication (switching back to page 0 is done within the new helpers for example). No functional changes are intended. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| README | ||
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.