Initial commit
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#!/bin/sh
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# This should be run before power-on and used to patch/update power specific
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# hardware settings. This is platform specific settings that must be
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# updated/removed if not Swift.
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########## Program TPS53915 FSW to desired frequency #########
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# FREQUENCY_CONFIG D3h, bits 2:0
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# AVDD, bus 3 addr 1D, set to 600khz
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# 600khz = 1,0,0
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i2cset -y 3 0x1D 0xD3 0x04 b
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# 3.3VA, bus 3 addr 1C, set to 600khz
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i2cset -y 3 0x1C 0xD3 0x04 b
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# 3.3VB, bus 3 addr 1B, set to 600khz
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i2cset -y 3 0x1B 0xD3 0x04 b
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# 5.0V, bus 3 addr 1A, set to 850khz
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# 850khz = 1,1,0
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i2cset -y 3 0x1A 0xD3 0x06 b
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########## END Program TPS53915 FSW to desired frequency #########
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[Unit]
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Description=Perform power workarounds on VRMs after PGOOD is up
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Wants=obmc-power-on@%i.target
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After=obmc-power-on@%i.target
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Before=obmc-host-start-pre@%i.target
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Conflicts=obmc-chassis-poweroff@%i.target
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ConditionPathExists=!/run/openbmc/chassis@%i-on
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[Service]
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ExecStart=/usr/bin/power-workarounds.sh
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SyslogIdentifier=power-workarounds.sh
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Type=oneshot
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RemainAfterExit=yes
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[Install]
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WantedBy=obmc-chassis-poweron@%i.target
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#!/bin/sh
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# ensure VCS ON_OFF_CONFIG set correctly from prior FW drivers
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# A side
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i2cset -y 4 0x70 0x00 0x01 b
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i2cset -y 4 0x70 0x02 0x16 b #respond to ENABLE pin
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i2cset -y 4 0x70 0x00 0x00 b
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# B side
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i2cset -y 5 0x70 0x00 0x01 b
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i2cset -y 5 0x70 0x02 0x16 b #respond to ENABLE pin
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i2cset -y 5 0x70 0x00 0x00 b
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# vddio = 1.0V, mdat/sdat PU enabled
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i2cset -y 4 0x12 0xFF 0x00 b # VDD/VCS 0
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i2cset -y 4 0x12 0x2E 0x03 b # VDD/VCS 0
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i2cset -y 4 0x13 0xFF 0x00 b # VDN 0
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i2cset -y 4 0x13 0x2E 0x03 b # VDN 0
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i2cset -y 5 0x12 0xFF 0x00 b # VDD/VCS 1
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i2cset -y 5 0x12 0x2E 0x03 b # VDD/VCS 1
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i2cset -y 5 0x13 0xFF 0x00 b # VDN 1
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i2cset -y 5 0x13 0x2E 0x03 b # VDN 1
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# A side VDDR - set to 1.23V
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i2cset -y 4 0x71 0x00 0x01
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i2cset -y 4 0x71 0x21 0x3B 0x01 i
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i2cset -y 4 0x71 0x00 0x00
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# B side VDDR - set to 1.23V
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i2cset -y 5 0x71 0x00 0x01
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i2cset -y 5 0x71 0x21 0x3B 0x01 i
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i2cset -y 5 0x71 0x00 0x00
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# VDN A - PGOOD_ON threshold
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i2cset -y 4 0x71 0x00 0x00 b # PAGE
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i2cset -y 4 0x71 0x5E 0xCD 0x00 i # set to 0.8V
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# VDN B - PGOOD_ON threshold
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i2cset -y 5 0x71 0x00 0x00 b # PAGE
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i2cset -y 5 0x71 0x5E 0xCD 0x00 i # set to 0.8V
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# unbind ucd driver to permit i2cset
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ucd_retries=5
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ucd=
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ucdpath="/sys/bus/i2c/drivers/ucd9000"
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if [ -e $ucdpath ]
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then
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# shellcheck disable=SC2010
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ucd=$(ls -1 $ucdpath | grep 64)
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if [ -n "$ucd" ]
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then
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echo "$ucd" > $ucdpath/unbind
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fi
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fi
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# make sure VCS ON_OFF_CONFIG set correctly from old FW releases
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i2cset -y 11 0x64 0x00 0x0E i
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i2cset -y 11 0x64 0x02 0x16 i
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i2cset -y 11 0x64 0x00 0x0F i
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i2cset -y 11 0x64 0x02 0x16 i
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## move memory enables to align with VDN (VDN to VDDR leakage issue)
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#GPO_CONFIG_1 (GPIO15) : mem 0 reg enables
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i2cset -y 11 0x64 0xF7 0x00 i
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i2cset -y 11 0x64 0xF8 0x15 0x6E 0x80 0x08 0x00 0x00 0x00 0x40 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 i
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#GPO_CONFIG_2 (GPIO7) : mem 1 reg enables
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i2cset -y 11 0x64 0xF7 0x01 i
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i2cset -y 11 0x64 0xF8 0x15 0x16 0x80 0x08 0x00 0x00 0x20 0x40 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 i
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# change VDN delays based on UCD MFR_REVISION setting
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REV=$(i2cget -y 11 0x64 0x9B i 2|cut -f2 -d' ')
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if [ "$REV" = "0x01" ] || [ "$REV" = "0x02" ] ; then
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# use 20ms delay for VDN
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#TON_DELAY rail 8
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i2cset -y 11 0x64 0x00 0x07 i
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i2cset -y 11 0x64 0x60 0x80 0xDA i
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#TON_DELAY rail 9
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i2cset -y 11 0x64 0x00 0x08 i
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i2cset -y 11 0x64 0x60 0x80 0xDA i
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else
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# use 70ms delay for VDN
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#TON_DELAY rail 8
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i2cset -y 11 0x64 0x00 0x07 i
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i2cset -y 11 0x64 0x60 0x30 0xEA i
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#TON_DELAY rail 9
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i2cset -y 11 0x64 0x00 0x08 i
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i2cset -y 11 0x64 0x60 0x30 0xEA i
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fi
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# Raise AVDD +100mV
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i2cset -y 11 0x64 0x00 0x09 i # set PAGE
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i2cset -y 11 0x64 0xF5 0x81 i # set margin_config
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i2cset -y 11 0x64 0x21 0x85 0x33 i # set VOUT_COMMAND
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# Increase over-current settings
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#VDD A phase current
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i2cset -y 4 0x12 0xFF 0x04 b # set window register high byte to 4
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i2cset -y 4 0x12 0x3C 0x80 b # Set to 64A
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#VDD B phase current
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i2cset -y 5 0x12 0xFF 0x04 b # set window register high byte to 4
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i2cset -y 5 0x12 0x3C 0x80 b # Set to 64A
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#VDD A master OC fault to 445A
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i2cset -y 4 0x70 0x00 0x00 b # PAGE
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i2cset -y 4 0x70 0x46 0x08DE w
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# VDD A master OC warn to 326A
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i2cset -y 4 0x70 0x4A 0x08A3 w # A308
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#VDD B master OC fault to 445A
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i2cset -y 5 0x70 0x00 0x00 b # PAGE
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i2cset -y 5 0x70 0x46 0x08DE w
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# VDD B master OC warn to 326A
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i2cset -y 5 0x70 0x4A 0x08A3 w
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#VCS phase current to 30A C/C
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i2cset -y 4 0x12 0xFF 0x08 b # set window register to 8
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i2cset -y 4 0x12 0x3C 0x3C b # 30A
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i2cset -y 5 0x12 0xFF 0x08 b # set window register to 8
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i2cset -y 5 0x12 0x3C 0x3C b # 30A
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#VCS master OC to 43A
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i2cset -y 4 0x70 0x00 0x01 # PAGE 1
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i2cset -y 4 0x70 0x46 0x0816 w # OC to 43A
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i2cset -y 5 0x70 0x00 0x01 # PAGE 1
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i2cset -y 5 0x70 0x46 0x0816 w # OC to 43A
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# re-bind ucd driver only if we unbound it (i.e. ucd has been set with a value)
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if [ -e $ucdpath ] && [ -n "$ucd" ]; then
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j=0
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until [ $j -ge $ucd_retries ] || [ -e "$ucdpath/$ucd" ]; do
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j=$((j+1))
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# shellcheck disable=2320
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echo "$ucd" > $ucdpath/bind || ret=$?
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if [ $j -gt 1 ]; then
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echo "rebinding UCD driver. Retry number $j"
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sleep 1
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fi
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done
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if [ ! -e "$ucdpath/$ucd" ]; then exit "$ret"; fi
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fi
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+16
@@ -0,0 +1,16 @@
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[Unit]
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Description=Perform power workarounds on VRMs
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Wants=ir35221-on-unbind@%i.service
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After=ir35221-on-unbind@%i.service
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Before=avsbus-disable@%i.service
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Before=obmc-power-on@%i.target
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Conflicts=obmc-chassis-poweroff@%i.target
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ConditionPathExists=!/run/openbmc/chassis@%i-on
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[Service]
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ExecStart=/usr/bin/power-workarounds.sh
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Type=oneshot
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RemainAfterExit=yes
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[Install]
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WantedBy=obmc-chassis-poweron@%i.target
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