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mb/google/skywalker: Implement regulator interface

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Control regulator more easily with regulator interface.

BUG=b:379008996
BRANCH=none
TEST=build passed.

Signed-off-by: Zhigang Qin <zhigang.qin@mediatek.corp-partner.google.com>
Change-Id: Ie7bfc9c3fb4e5f50cdf1ed8174366bdafaf3c49a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87794
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
This commit is contained in:
Vince Liu 2025-03-28 11:34:15 +08:00 • committed by Yidi Lin
commit 0ba0d03140
2 changed files with 104 additions and 0 deletions
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2
src/mainboard/google/skywalker/Makefile.mk
View file

@ -7,6 +7,8 @@ all-y += reset.c
bootblock-y += bootblock.c
romstage-y += romstage.c
romstage-y += regulator.c
ramstage-y += boardid.c
ramstage-y += mainboard.c
ramstage-y += regulator.c

102
src/mainboard/google/skywalker/regulator.c Normal file
View file

@ -0,0 +1,102 @@
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
#include <console/console.h>
#include <soc/mt6359p.h>
#include <soc/regulator.h>
#define MTK_REGULATOR_INVALID -1
static int get_mt6359p_regulator_id(enum mtk_regulator regulator)
{
switch (regulator) {
case MTK_REGULATOR_VPROC12:
return MT6359P_VMODEM;
case MTK_REGULATOR_VSRAM_PROC12:
return MT6359P_VSRAM_MD;
case MTK_REGULATOR_VMCH:
return MT6359P_PA;
case MTK_REGULATOR_VMC:
return MT6359P_SIM1;
default:
return MTK_REGULATOR_INVALID;
}
}
void mainboard_set_regulator_voltage(enum mtk_regulator regulator, uint32_t voltage_uv)
{
int id;
id = get_mt6359p_regulator_id(regulator);
if (id < 0) {
printk(BIOS_ERR, "%s: Invalid regulator ID: %d\n", __func__, regulator);
return;
}
switch (id) {
case MT6359P_VMODEM:
mt6359p_buck_set_voltage(MT6359P_VMODEM, voltage_uv);
break;
case MT6359P_VSRAM_MD:
mt6359p_buck_set_voltage(MT6359P_VSRAM_MD, voltage_uv);
break;
case MT6359P_PA:
mt6359p_buck_set_voltage(MT6359P_PA, voltage_uv);
break;
case MT6359P_SIM1:
mt6359p_set_vsim1_voltage(voltage_uv);
break;
default:
printk(BIOS_ERR, "%s: Regulator ID %d: not supported\n", __func__, regulator);
break;
}
}
uint32_t mainboard_get_regulator_voltage(enum mtk_regulator regulator)
{
int id;
id = get_mt6359p_regulator_id(regulator);
if (id < 0) {
printk(BIOS_ERR, "%s: Invalid regulator ID: %d\n", __func__, regulator);
return 0;
}
switch (id) {
case MT6359P_VMODEM:
return mt6359p_buck_get_voltage(MT6359P_VMODEM);
case MT6359P_VSRAM_MD:
return mt6359p_buck_get_voltage(MT6359P_VSRAM_MD);
case MT6359P_PA:
return mt6359p_buck_get_voltage(MT6359P_PA);
case MT6359P_SIM1:
return mt6359p_get_vsim1_voltage();
default:
printk(BIOS_ERR, "%s: Regulator ID %d: not supported\n", __func__, regulator);
return 0;
}
}
int mainboard_enable_regulator(enum mtk_regulator regulator, bool enable)
{
int id;
id = get_mt6359p_regulator_id(regulator);
if (id < 0) {
printk(BIOS_ERR, "%s: Invalid regulator ID: %d\n", __func__, regulator);
return -1;
}
switch (id) {
case MT6359P_PA:
mt6359p_enable_vpa(enable);
break;
case MT6359P_SIM1:
mt6359p_enable_vsim1(enable);
break;
default:
printk(BIOS_ERR, "%s: Regulator ID %d: not supported\n", __func__, regulator);
break;
}
return 0;
}