[coreboot-gerrit] [XS] Change in coreboot[main]: ec/google/chromeec: Implement early power off

[Subrata Banik (Code Review)]

Attention is currently required from: Boris Mittelberg, Caveh Jalali.

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/86337?usp=email )

Change subject: ec/google/chromeec: Implement early power off
......................................................................

ec/google/chromeec: Implement early power off

This commit implements the platform_do_intel_early_poweroff()
function for the Chrome EC. This allows the system to power
off before memory initialization by triggering an EC reset
with EC_REBOOT_COLD_AP_OFF.

This provides a platform-specific implementation for early
power off on Chrome EC-based systems.

BUG=b:339673254
TEST=Able to build and boot google/brox.

Change-Id: Ia53469feb2a020b38a5414728159b09c86c7e32d
Signed-off-by: Subrata Banik 
---
M src/ec/google/chromeec/ec.c
1 file changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/37/86337/1

diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c
index 2e8961f..ec81553 100644
--- a/src/ec/google/chromeec/ec.c
+++ b/src/ec/google/chromeec/ec.c
@@ -8,6 +8,8 @@
 #include <device/device.h>
 #include <device/path.h>
 #include <elog.h>
+#include <halt.h>
+#include <intelblocks/pmclib.h>
 #include <rtc.h>
 #include <security/vboot/vboot_common.h>
 #include <stdlib.h>
@@ -1669,3 +1671,9 @@

return false;
 }
+
+void platform_do_intel_early_poweroff(void)
+{
+	google_chromeec_reboot(EC_REBOOT_COLD_AP_OFF, 0);
+	halt();
+}