Biwen Li e95f287dee soc: fsl: handle RCPM errata A-008646 on SoC LS1021A
Hardware issue:
- Reading register RCPM_IPPDEXPCR1 always return zero, this causes
  system firmware could not get correct information and wrongly do
  clock gating for all wakeup source IP during system suspend. Then
  those IPs will never get chance to wake system.

Workaround:
- Copy register RCPM_IPPDEXPCR1's setting to register SCFG_SPARECR8
  to allow system firmware's psci method read it and do things accordingly.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-11-23 19:16:02 -06:00
2020-10-25 15:14:11 -07:00

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.
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