MIRRORS/linux-imx
1
0
Fork 0
mirror of https://github.com/nxp-imx/linux-imx.git synced 2025-09-03 02:16:09 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity
lf-6.6.y
linux-imx/Documentation/ABI/testing/sysfs-platform-intel-pmc
Mauro Carvalho Chehab 10317dda79 ABI: sysfs-platform-intel-pmc: add blank lines to make it valid for ReST 
The ReST format requires blank lines before/after identation changes,
for it to properly detect lists.

Fixes: ee7abc105e ("platform/x86: intel_pmc_core: export platform global reset bits via etr3 sysfs file")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/3673e1a255ad4100c933af215b60d68ba126f820.1632740376.git.mchehab+huawei@kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-10-11 14:52:02 +02:00

816 B
Raw Permalink Blame History

What: /sys/devices/platform//etr3 Date: Apr 2021 KernelVersion: 5.13 Contact: "Tomas Winkler" tomas.winkler@intel.com Description: The file exposes "Extended Test Mode Register 3" global reset bits. The bits are used during an Intel platform manufacturing process to indicate that consequent reset of the platform is a "global reset". This type of reset is required in order for manufacturing configurations to take effect.

	Display global reset setting bits for PMC.

		* bit 31 - global reset is locked
		* bit 20 - global reset is set

	Writing bit 20 value to the etr3 will induce
	a platform "global reset" upon consequent platform reset,
	in case the register is not locked.
	The "global reset bit" should be locked on a production
	system and the file is in read-only mode.