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2026-04-23 17:07:55 +08:00
commit b7e39e063b
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meta-ibm/recipes-phosphor/chassis/power-workarounds/swift/power-workarounds.sh
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#!/bin/sh
# This should be run before power-on and used to patch/update power specific
# hardware settings. This is platform specific settings that must be
# updated/removed if not Swift.
########## Program TPS53915 FSW to desired frequency #########
# FREQUENCY_CONFIG D3h, bits 2:0
# AVDD, bus 3 addr 1D, set to 600khz
# 600khz = 1,0,0
i2cset -y 3 0x1D 0xD3 0x04 b
# 3.3VA, bus 3 addr 1C, set to 600khz
i2cset -y 3 0x1C 0xD3 0x04 b
# 3.3VB, bus 3 addr 1B, set to 600khz
i2cset -y 3 0x1B 0xD3 0x04 b
# 5.0V, bus 3 addr 1A, set to 850khz
# 850khz = 1,1,0
i2cset -y 3 0x1A 0xD3 0x06 b
########## END Program TPS53915 FSW to desired frequency #########
meta-ibm/recipes-phosphor/chassis/power-workarounds/swift/power-workarounds@.service
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[Unit]
Description=Perform power workarounds on VRMs after PGOOD is up
Wants=obmc-power-on@%i.target
After=obmc-power-on@%i.target
Before=obmc-host-start-pre@%i.target
Conflicts=obmc-chassis-poweroff@%i.target
ConditionPathExists=!/run/openbmc/chassis@%i-on
[Service]
ExecStart=/usr/bin/power-workarounds.sh
SyslogIdentifier=power-workarounds.sh
Type=oneshot
RemainAfterExit=yes
[Install]
WantedBy=obmc-chassis-poweron@%i.target