Everyone:
This patchset is the result of my work on adding support for detecting
and reporting reset reason as can be obtained from System Reset
Controller (to be more precise via SRSR register) on i.MX family of
SoC.
Currently list of supported SoC is as follows:
- i.MX6 (tested on i.MX6Q)
- i.MX7 (tested on i.MX7D)
- VFxxx (tested on VF610)
Changes since [v1]:
- i.MX reset reason detection code was converted to do detect
the source with bitmasking as opposed to having a switch
statement, due to potential problems with the latter as was
pointed out by Philipp in [thread1]
- Change above also allowed to unify VFxxx and i.MX codepaths
without the need to introduce a dedicated VFxxx centric
function
[v1] http://lists.infradead.org/pipermail/barebox/2018-April/032614.html
[thread1] http://lists.infradead.org/pipermail/barebox/2018-April/032708.html
Feedback is wellcome!
Thanks,
Andrey Smirnov
Andrey Smirnov (10):
common: reset_source: Add the notion of "reset source instance"
ARM: i.MX: Add infrastructure to record SoC reset reason
ARM: i.MX6: Record reset reason as a part of startup
ARM: i.MX7: Record reset reason as a part of startup
common: reset_source: Introduce reset_source_name()
ARM: i.MX: Log detected reset reason
ARM: i.MX: Print "revision unknown" if that is the case
ARM: VFxxx: Add code to detect cpu variant
ARM: VFxxx: Detect cpu variant on start
ARM: VFxxx: Record reset reason as a part of startup
arch/arm/mach-imx/Makefile | 1 +
arch/arm/mach-imx/imx.c | 43 ++++++++++++++++++-
arch/arm/mach-imx/imx6.c | 13 +++++-
arch/arm/mach-imx/imx7.c | 14 +++++++
arch/arm/mach-imx/include/mach/generic.h | 1 +
arch/arm/mach-imx/include/mach/reset-reason.h | 37 +++++++++++++++++
arch/arm/mach-imx/include/mach/vf610-regs.h | 3 ++
arch/arm/mach-imx/include/mach/vf610.h | 51 +++++++++++++++++++++++
arch/arm/mach-imx/vf610.c | 59 +++++++++++++++++++++++++++
common/reset_source.c | 23 +++++++++++
include/reset_source.h | 17 ++++++++
11 files changed, 259 insertions(+), 3 deletions(-)
create mode 100644 arch/arm/mach-imx/include/mach/reset-reason.h
create mode 100644 arch/arm/mach-imx/include/mach/vf610.h
create mode 100644 arch/arm/mach-imx/vf610.c
--
2.14.3
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