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bfd9d893ed
If the MAC controller does not connect to any PHY interface, there is a missing clock, then the DMA reset fails. For this case, the DMA_BUS_MODE_SFT_RESET bit is 1 before software reset, just print an error message which gives a hint the PHY clock is missing, and then return -EINVAL immediately to avoid waiting for the timeout when the DMA reset fails in loongson_dwmac_fix_reset(). With this patch, for the normal end user, the computer start faster with reducing boot time for 2 seconds on the specified mainboard. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Link: https://patch.msgid.link/20250811073506.27513-4-yangtiezhu@loongson.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| README | ||
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 reStructuredText 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.