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AST2700 continues the multi-instance SCU interrupt controller model introduced in the AST2600, with four independent interrupt domains (scu-ic0 to 3). Unlike earlier generations which combine interrupt enable and status bits into a single register, AST2700 separates these into distinct IER and ISR registers. Support for this layout is implemented by using register offsets and separate chained IRQ handlers. The variant table is extended to cover AST2700 IC instances, enabling shared initialization logic while preserving support for previous SoCs. [ tglx: Simplified the logic and cleaned up coding style ] Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20250908011812.1033858-5-ryan_chen@aspeedtech.com |
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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.