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| author | henryc.chen <henryc.chen@mediatek.com> | 2021-03-04 09:44:42 +0800 |
|---|---|---|
| committer | Hung-Te Lin <hungte@chromium.org> | 2021-06-18 08:47:06 +0000 |
| commit | 21e4bd4e8cedcf11d2bf82fb727b0863c19aa310 (patch) | |
| tree | ada0f1e487a4ee6456eacb95b2599230cc1a25ee /src/soc/mediatek/mt8195/include/soc | |
| parent | f2c259cf2a16714bd2695507b9241080de660e05 (diff) | |
| download | coreboot-21e4bd4e8cedcf11d2bf82fb727b0863c19aa310.tar.gz coreboot-21e4bd4e8cedcf11d2bf82fb727b0863c19aa310.tar.bz2 coreboot-21e4bd4e8cedcf11d2bf82fb727b0863c19aa310.zip | |
soc/mediatek/mt8195: add mt6691 driver
Add mt6691 buck control for DRAM to run fast calibration test.
It is needed to get and set voltage during testing.
Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Change-Id: I4fb9f7245d44383a6a3a0cf8d00f7f503cbdeb06
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55575
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/mediatek/mt8195/include/soc')
| -rw-r--r-- | src/soc/mediatek/mt8195/include/soc/mt6691.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8195/include/soc/mt6691.h b/src/soc/mediatek/mt8195/include/soc/mt6691.h new file mode 100644 index 000000000000..c347c41d93cd --- /dev/null +++ b/src/soc/mediatek/mt8195/include/soc/mt6691.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SOC_MEDIATEK_MT8195_MT6691_H__ +#define __SOC_MEDIATEK_MT8195_MT6691_H__ + +#include <stdint.h> + +void mt6691_probe(uint8_t i2c_num); +int mt6691_set_voltage(uint8_t i2c_num, unsigned int volt_uv); +int mt6691_get_voltage(uint8_t i2c_num); + +#define MT6691_CID_CODE 0x01 + +#define MT6691_VDD2_ID 0x0000 +#define MT6691_VDDQ_ID 0x0000 +#define MT6691_PGOOD_SHIFT 7 +#define MT6691_DN_SR_MASK 0x7 +#define MT6691_DN_SR_SHIFT 5 + +enum { + /* Voltage setting */ + MT6691_VSEL0 = 0x00, + MT6691_VSEL1 = 0x01, + /* Control register */ + MT6691_CONTROL = 0x02, + /* IC Type */ + MT6691_ID1 = 0x03, + /* IC mask version */ + MT6691_ID2 = 0x04, + /* Monitor register */ + MT6691_MONITOR = 0x05, + MT6691_CTRL2 = 0x06, + MT6691_CTRL3 = 0x07, + MT6691_CTRL4 = 0x08, +}; + +#endif |