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Because vcore is the power of ddrphy in the soc, DRAM DVFS needs to be
calibrated with different vcore voltages to get correct parameters.
A new API is added to allow changing vcore voltage.
BUG=b:80501386
BRANCH=none
TEST=measure vcore voltage with multimeter
Change-Id: Ic43d5efe7e597121775dc853a3e2a08ebc59657d
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33391
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add scp voltage initialization.
BUG=b:135985700
BRANCH=none
Test=Boots correctly on Kukui and scp can boot up normally
Change-Id: I5afb60af3c14490e20f28f1c089cfca42ddf7fcf
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34205
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
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The correct address for vproc12 register of sw mode is 0x1426 instead
of 0x140a.
BUG=b:80501386
BRANCH=none
Test=Boots correctly on Kukui and see that regulator is not stuck to
1.05V anymore:
grep vproc12 /sys/kernel/debug/regulator/regulator_summary
Change-Id: I13867b11c44019875e0ed607343197950a3b38b2
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33168
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The default voltage of vsim2 is set to 2.76V for sim card usage.
In general, 2.76V of vsim2 is composed of 2.7V main voltage and 0.06V calibration voltage.
However, vsim2 is used for the tx_ovdd power of display port IT6505 on the kukui board design which needs 2.7V.
So we set it to 2.7V with modifying calibration value.
BUG=b:126139364
BRANCH=none
TEST=measure vsim2 voltage with multimeter
Change-Id: I4dffdde89cbde91286d92e6c2b445f0b3d0ad2fe
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32057
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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When we increase voltages, it takes 200us for voltages to stablize.
BUG=b:80501386
BRANCH=none
Test=Boots correctly on Kukui
Change-Id: I5f32035693b6084dbe763411c612ae5d1f7c9e48
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: You-Cheng Syu <youcheng@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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The maximum CPU frequency is 1417MHz with current processor voltage
(0.8v). Set processor voltage to 1.05v for higher CPU frequency.
BUG=b:80501386
BRANCH=none
Test=Boots correctly on Kukui
Change-Id: I24ecdac2c85d3f012d9235449c0d727d727dc185
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32396
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: You-Cheng Syu <youcheng@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
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Change-Id: Ib843eb7144b7dc2932931b9e8f3f1d816bcc1e1a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/26796
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: David Guckian
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Change-Id: Ie21c390ab04adb5b05d5f9760d227d2a175ccb56
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32122
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
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PMIC provides power features like auxadc, buck/ldo,
interrupt-controller..etc
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui
Change-Id: Ic247faf73517f6512f9c9a69ba0254c749d68d4c
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/29422
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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