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It is not at all clear from the documentation, but straightforward to determine in practice, that the ETR SMMU is actually in the DEBUGSYS power domain. Add that to the DT so that anyone brave enough to enable said SMMU doesn't experience a system lockup on boot, especially a sneaky one which goes away as soon as you connect an external debugger to have a look at where it's stuck (thus powering up DEBUGSYS by other means and allowing it to make progress again before actually halting...) Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.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.