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ff4aa3bc98
IPQ5018 has SDI (Secure Debug Image) enabled by TZ by default, and that means that WDT being asserted or just trying to reboot will hang the board in the debug mode and only pulling the power and repowering will help. Some IPQ4019 boards like Google WiFI have it enabled as well. Luckily, SDI can be disabled via an SCM call. So, lets use the boolean DT property to identify boards that have SDI enabled by default and use the SCM call to disable SDI during SCM probe. It is important to disable it as soon as possible as we might have a WDT assertion at any time which would then leave the board in debug mode, thus disabling it during SCM removal is not enough. Signed-off-by: Robert Marko <robimarko@gmail.com> Reviewed-by: Guru Das Srinagesh <quic_gurus@quicinc.com> Link: https://lore.kernel.org/r/20230816164641.3371878-2-robimarko@gmail.com Signed-off-by: Bjorn Andersson <andersson@kernel.org> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 Restructured Text 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.