Nico Huber dca081b5e6 soc/intel/common/pmc: Avoid unnecessary writes of AFTERG3_EN ... pmc_set_power_failure_state() is usually called twice, once upon boot (with `target_on == true`) and once from SMM when the system is shut down (with `target_on == false`). Assuming settings didn't change between these calls, there is only one case where we actually need to write the register value: when updating the state for the MAINBOARD_POWER_STATE_PREVIOUS feature. This suits us well as we want to avoid unnecessary writes so we don't clobber the value set upon boot from within SMM. Due to inaccessible option backends, SMM might not know the current option state. The assumption above, that the option value didn't change, may not be true if the user changed the option on purpose. In the future, one would have to reboot the machine for option changes to take effect. However, this doesn't seem to make a huge difference: One already needed a controlled shutdown for the update to take effect before. A reboot doesn't seem much more expensive. Change-Id: I58dd74b8b073f4f07db090bf7fddb14b5df8239a Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55539 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>		2021-06-17 05:46:49 +00:00
..
acpi	soc/intel: Rename and move MISCCFG_GPIO_PM_CONFIG_BITS definition to soc/gpio.h	2021-03-27 04:23:12 +00:00
basecode	kconfig: remove non-existent source	2020-12-28 13:37:56 +00:00
block	soc/intel/common/pmc: Avoid unnecessary writes of AFTERG3_EN	2021-06-17 05:46:49 +00:00
pch	soc/intel/common/pch: Add server PCH option	2021-03-09 16:50:10 +00:00
fsp_reset.c	soc/intel/common: Create common Intel FSP reset code block	2020-11-02 10:43:40 +00:00
hda_verb.c	soc/intel/common/hda_verb.c: Fix up comment style	2021-03-22 12:59:57 +00:00
hda_verb.h
Kconfig.common	ACPI: Drop redundant CBMEM_ID_ACPI_GNVS allocations	2021-01-10 11:15:10 +00:00
Makefile.inc	soc/intel: Remove duplicate call to acpi_wake_source()	2021-01-29 19:35:25 +00:00
mma.c	intel: mma: Use new CBFS API	2021-04-14 01:03:33 +00:00
mma.h	intel: mma: Use new CBFS API	2021-04-14 01:03:33 +00:00
nhlt.c
reset.c	Revert "soc/intel: Refactor do_global_reset() function"	2020-09-22 05:13:39 +00:00
reset.h	Revert "soc/intel: Refactor do_global_reset() function"	2020-09-22 05:13:39 +00:00
smbios.c	device/dram/ddr3: Rename DDR3 SPD memory types	2021-04-05 13:01:37 +00:00
smbios.h
tpm_tis.c
vbt.c
vbt.h