soc/intel/common: Add API to restore power failure into PMC common code

PMC config register need to program to define which state system
should be after reapplied power from G3 state.

0 = System will return to S0 state
1 = System will return to S5 state
2 = System will return to previous state before failure

Refer to EDS for detailed programming sequence.

Change-Id: I0ce2cc77745d00a8cfe3eed7c6372af77e063d02
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/22838
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/soc/intel/common/block/pmc/Kconfig b/src/soc/intel/common/block/pmc/Kconfig
index c00e14c303..cfd12d8f3e 100644
--- a/src/soc/intel/common/block/pmc/Kconfig
+++ b/src/soc/intel/common/block/pmc/Kconfig
@@ -5,3 +5,28 @@ config SOC_INTEL_COMMON_BLOCK_PMC
 	help
 	  Intel Processor common code for Power Management controller(PMC)
 	  subsystem
+
+choice
+	prompt "System Power State after Failure"
+	default POWER_STATE_ON_AFTER_FAILURE
+
+config POWER_STATE_OFF_AFTER_FAILURE
+	bool "S5 Soft Off"
+	help
+	  Choose this option if you want to keep system into
+	  S5 after reapplying power after failure
+
+config POWER_STATE_ON_AFTER_FAILURE
+	bool "S0 Full On"
+	help
+	  Choose this option if you want to keep system into
+	  S0 after reapplying power after failure
+
+config POWER_STATE_PREVIOUS_AFTER_FAILURE
+	bool "Keep Previous State"
+	help
+	  Choose this option if you want to keep system into
+	  same power state as before failure even after reapplying
+	  power
+
+endchoice