[coreboot-gerrit] Change in coreboot[master]: mb/google/asurada: Implement regulator control for vdd2, vddq and vmddr

[Yidi Lin (Code Review)]

Yidi Lin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/46406 )

Change subject: mb/google/asurada: Implement regulator control for vdd2, vddq and vmddr
......................................................................

mb/google/asurada: Implement regulator control for vdd2, vddq and vmddr

These three requlators are controlled via EC.

BUG=b:147789962
BRANCH=none
TEST=verified with DRAM driver

Signed-off-by: Yidi Lin 
Change-Id: Id06a8196ca4badc51b06759afb07b5664278d13b
---
M src/mainboard/google/asurada/Makefile.inc
A src/mainboard/google/asurada/regulator.c
2 files changed, 70 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/06/46406/1

diff --git a/src/mainboard/google/asurada/Makefile.inc b/src/mainboard/google/asurada/Makefile.inc
index 02fb830..d3f8ce6 100644
--- a/src/mainboard/google/asurada/Makefile.inc
+++ b/src/mainboard/google/asurada/Makefile.inc
@@ -13,6 +13,7 @@
 romstage-y += chromeos.c
 romstage-y += romstage.c
 romstage-y += sdram_configs.c
+romstage-y += regulator.c

ramstage-y += memlayout.ld
 ramstage-y += boardid.c
diff --git a/src/mainboard/google/asurada/regulator.c b/src/mainboard/google/asurada/regulator.c
new file mode 100644
index 0000000..514c423
--- /dev/null
+++ b/src/mainboard/google/asurada/regulator.c
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <ec/google/chromeec/ec.h>
+#include <soc/regulator.h>
+
+enum mt6360_regulator_id {
+	MT6360_LDO3,
+	MT6360_LDO5,
+	MT6360_LDO6,
+	MT6360_LDO7,
+	MT6360_BUCK1,
+	MT6360_BUCK2,
+
+	MT6360_REGULATOR_COUNT,
+};
+
+void mainboard_set_vdd2_vol(uint32_t voltage_uv)
+{
+	uint32_t voltage_mv = voltage_uv / 1000;
+
+	google_chromeec_regulator_set_voltage(MT6360_BUCK1,
+					      voltage_mv,
+					      voltage_mv);
+}
+
+void mainboard_set_vddq_vol(uint32_t voltage_uv)
+{
+	uint32_t voltage_mv = voltage_uv / 1000;
+
+	google_chromeec_regulator_set_voltage(MT6360_LDO7,
+					      voltage_mv,
+					      voltage_mv);
+}
+
+void mainboard_set_vmddr_vol(uint32_t voltage_uv)
+{
+	uint32_t voltage_mv = voltage_uv / 1000;
+
+	google_chromeec_regulator_set_voltage(MT6360_LDO6,
+					      voltage_mv,
+					      voltage_mv);
+}
+
+uint32_t mainboard_get_vdd2_vol(void)
+{
+	uint32_t voltage_mv = 0;
+
+	google_chromeec_regulator_get_voltage(MT6360_BUCK1, &voltage_mv);
+
+	return voltage_mv * 1000;
+}
+
+uint32_t mainboard_get_vddq_vol(void)
+{
+	uint32_t voltage_mv = 0;
+
+	google_chromeec_regulator_get_voltage(MT6360_LDO7, &voltage_mv);
+
+	return voltage_mv * 1000;
+}
+
+uint32_t mainboard_get_vmddr_vol(void)
+{
+	uint32_t voltage_mv = 0;
+
+	google_chromeec_regulator_get_voltage(MT6360_LDO6, &voltage_mv);
+
+	return voltage_mv * 1000;
+}