[coreboot-gerrit] Change in coreboot[master]: soc/intel/tigerlake: update elog to include CSME reset causes

[Tim Wawrzynczak (Code Review)]

Tim Wawrzynczak has submitted this change. ( https://review.coreboot.org/c/coreboot/+/41026 )

Change subject: soc/intel/tigerlake: update elog to include CSME reset causes
......................................................................

soc/intel/tigerlake: update elog to include CSME reset causes

Call out the CSME-initiated bits from HPR_CAUSE0 register and
update the elog to include reset causes

Change-Id: I32ffb55ff2ad26ec4e7609c41fc65e021a327a14
Signed-off-by: derek.huang 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41026
Tested-by: build bot (Jenkins) 
Reviewed-by: Tim Wawrzynczak 
Reviewed-by: Nick Vaccaro 
---
M src/soc/intel/tigerlake/elog.c
1 file changed, 12 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Nick Vaccaro: Looks good to me, approved
  Tim Wawrzynczak: Looks good to me, approved

diff --git a/src/soc/intel/tigerlake/elog.c b/src/soc/intel/tigerlake/elog.c
index 586dbfd..d5b8754 100644
--- a/src/soc/intel/tigerlake/elog.c
+++ b/src/soc/intel/tigerlake/elog.c
@@ -61,6 +61,18 @@
    if (ps->gblrst_cause[0] & GBLRST_CAUSE0_THERMTRIP)
    	elog_add_event(ELOG_TYPE_THERM_TRIP);

+	/* CSME-Initiated Host Reset with power down */
+	if (ps->hpr_cause0 & HPR_CAUSE0_MI_HRPD)
+		elog_add_event(ELOG_TYPE_MI_HRPD);
+
+	/* CSME-Initiated Host Reset with power cycle */
+	if (ps->hpr_cause0 & HPR_CAUSE0_MI_HRPC)
+		elog_add_event(ELOG_TYPE_MI_HRPC);
+
+	/* CSME-Initiated Host Reset without power cycle */
+	if (ps->hpr_cause0 & HPR_CAUSE0_MI_HR)
+		elog_add_event(ELOG_TYPE_MI_HR);
+
    /* PWR_FLR Power Failure */
    if (ps->gen_pmcon_a & PWR_FLR)
    	elog_add_event(ELOG_TYPE_POWER_FAIL);