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-rw-r--r--src/mainboard/google/asurada/Makefile.inc1
-rw-r--r--src/mainboard/google/asurada/regulator.c92
2 files changed, 93 insertions, 0 deletions
diff --git a/src/mainboard/google/asurada/Makefile.inc b/src/mainboard/google/asurada/Makefile.inc
index 02fb8300e0..87582b7fbd 100644
--- a/src/mainboard/google/asurada/Makefile.inc
+++ b/src/mainboard/google/asurada/Makefile.inc
@@ -11,6 +11,7 @@ verstage-y += reset.c
romstage-y += memlayout.ld
romstage-y += boardid.c
romstage-y += chromeos.c
+romstage-y += regulator.c
romstage-y += romstage.c
romstage-y += sdram_configs.c
diff --git a/src/mainboard/google/asurada/regulator.c b/src/mainboard/google/asurada/regulator.c
new file mode 100644
index 0000000000..b06388dc66
--- /dev/null
+++ b/src/mainboard/google/asurada/regulator.c
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <ec/google/chromeec/ec.h>
+#include <soc/mt6359p.h>
+#include <soc/mt6360.h>
+#include <soc/regulator.h>
+
+static int get_mt6360_regulator_id(enum mtk_regulator regulator)
+{
+ switch (regulator) {
+ case MTK_REGULATOR_VDD2:
+ return MT6360_BUCK1;
+ case MTK_REGULATOR_VDDQ:
+ return MT6360_LDO7;
+ case MTK_REGULATOR_VMDDR:
+ return MT6360_LDO6;
+ default:
+ break;
+ }
+
+ return -1;
+}
+
+static int get_mt6359p_regulator_id(enum mtk_regulator regulator)
+{
+ switch (regulator) {
+ case MTK_REGULATOR_VCORE:
+ return MT6359P_GPU11;
+ default:
+ break;
+ }
+
+ return -1;
+}
+
+void mainboard_set_regulator_vol(enum mtk_regulator regulator,
+ uint32_t voltage_uv)
+{
+ /*
+ * Handle the regulator that does not have a regulator ID
+ * in its underlying implementation.
+ */
+ if (regulator == MTK_REGULATOR_VDD1) {
+ mt6359p_set_vm18_voltage(voltage_uv);
+ return;
+ }
+
+ int id;
+
+ id = get_mt6360_regulator_id(regulator);
+ if (id >= 0) {
+ uint32_t voltage_mv = voltage_uv / 1000;
+ google_chromeec_regulator_set_voltage(id, voltage_mv, voltage_mv);
+ return;
+ }
+
+ id = get_mt6359p_regulator_id(regulator);
+ if (id >= 0) {
+ mt6359p_buck_set_voltage(id, voltage_uv);
+ return;
+ }
+
+ printk(BIOS_WARNING, "Invalid regulator ID: %d\n", regulator);
+}
+
+uint32_t mainboard_get_regulator_vol(enum mtk_regulator regulator)
+{
+ /*
+ * Handle the regulator that does not have a regulator ID
+ * in its underlying implementation.
+ */
+ if (regulator == MTK_REGULATOR_VDD1)
+ return mt6359p_get_vm18_voltage();
+
+ int id;
+
+ id = get_mt6360_regulator_id(regulator);
+ if (id >= 0) {
+ uint32_t voltage_mv = 0;
+ google_chromeec_regulator_get_voltage(id, &voltage_mv);
+ return voltage_mv * 1000;
+ }
+
+ id = get_mt6359p_regulator_id(regulator);
+ if (id >= 0)
+ return mt6359p_buck_get_voltage(id);
+
+ printk(BIOS_WARNING, "Invalid regulator ID: %d\n", regulator);
+
+ return 0;
+}