[S] Change in coreboot[main]: ec/google/chromeec: Add early power off support

[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/+/86379?usp=email )

Change subject: ec/google/chromeec: Add early power off support
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ec/google/chromeec: Add early power off support

This commit adds support for early power off on Intel SoC platforms.
It introduces a platform_do_early_poweroff() function which, when
HAVE_EARLY_POWEROFF_SUPPORT is enabled, calls the EC's early
power off function (google_chromeec_do_early_powerof()).

Change-Id: I0c634d69de36fe8bdb6a61c121e321d3626ac3ff
Signed-off-by: Subrata Banik 
---
M src/ec/google/chromeec/Makefile.mk
A src/ec/google/chromeec/reset.c
2 files changed, 11 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/79/86379/1

diff --git a/src/ec/google/chromeec/Makefile.mk b/src/ec/google/chromeec/Makefile.mk
index 6465c2c..c8ebe57 100644
--- a/src/ec/google/chromeec/Makefile.mk
+++ b/src/ec/google/chromeec/Makefile.mk
@@ -40,6 +40,8 @@
 verstage-$(CONFIG_EC_GOOGLE_CHROMEEC_SPI) += ec_spi.c
 ramstage-$(CONFIG_HAVE_ACPI_TABLES) += ec_acpi.c

+romstage-$(CONFIG_HAVE_EARLY_POWEROFF_SUPPORT) += reset.c
+
 ramstage-$(CONFIG_VBOOT) += vboot_storage.c
 smm-$(CONFIG_VBOOT) += vboot_storage.c
 romstage-$(CONFIG_VBOOT) += vboot_storage.c
diff --git a/src/ec/google/chromeec/reset.c b/src/ec/google/chromeec/reset.c
new file mode 100644
index 0000000..eefaef5
--- /dev/null
+++ b/src/ec/google/chromeec/reset.c
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <ec/google/chromeec/ec.h>
+#include <intelblocks/pmclib.h>
+
+void platform_do_early_poweroff(void)
+{
+	google_chromeec_do_early_poweroff();
+}