95 lines
2.3 KiB
Bash
95 lines
2.3 KiB
Bash
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#!/bin/bash
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# Helper script to support enable/disable Scandump Mode
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# Author : Hieu Huynh (hieu.huynh@amperecomputing.com)
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#
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# To enable Scandump mode:
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# ampere_scandump_mode.sh enable
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#
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# To disable Scandump mode:
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# ampere_scandump_mode.sh disable
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#
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# To get Scandump mode status:
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# ampere_scandump_mode.sh getstatus
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enable_scandump_mode() {
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echo "Enable Scandump mode"
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# Disable Mpro hang detection
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systemctl stop ampere-sysfw-hang-handler.service
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# Disable PLDM service
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systemctl stop pldmd.service
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# Enable scandump mode in CPLD
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# Get Port0 value
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p0_val=$(i2cget -f -y 15 0x22 0x02)
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p0_val=$(("$p0_val" | (1 << 4)))
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# Set Port0[4] value to "1" to mask all CPU’s GPIOs, set Port0[4].
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i2cset -f -y 15 0x22 0x02 $p0_val
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p0_IOexp_val=$(i2cget -f -y 15 0x22 0x06)
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p0_IOexp_val=$(("$p0_IOexp_val" & ~(1 << 4)))
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# Config CPLD's IOepx Port0[4] from input to output, clear IOepx Port0[4].
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i2cset -f -y 15 0x22 0x06 $p0_IOexp_val
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}
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diable_scandump_mode() {
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echo "Disable Scandump mode"
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# Disable scandump mode in CPLD
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# Get Port0 value
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p0_val=$(i2cget -f -y 15 0x22 0x02)
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p0_val=$(("$p0_val" & ~(1 << 4)))
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# Set Port0[4] value to "0" to unmask all CPU’s GPIOs, clear Port0[4].
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i2cset -f -y 15 0x22 0x02 $p0_val
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p0_IOexp_val=$(i2cget -f -y 15 0x22 0x06)
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p0_IOexp_val=$(("$p0_IOexp_val" | (1 << 4)))
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# Config CPLD's IOepx Port0[4] from output to input, set IOepx Port0[4].
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i2cset -f -y 15 0x22 0x06 $p0_IOexp_val
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# Enable Mpro hang detection
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systemctl start ampere-sysfw-hang-handler.service
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# Enable PLDM service
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systemctl start pldmd.service
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}
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getstatus() {
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# Get CPLD's IOepx Port0[4], if this bit is "0" scandump mode is enabled.
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p0_IOexp_val=$(i2cget -f -y 15 0x22 0x06)
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p0_IOexp_val=$(("$p0_IOexp_val" & (1 << 4)))
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if [[ "$p0_IOexp_val" == "0" ]]; then
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echo "Scandump mode is enabled"
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exit 1
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else
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echo "Scandump mode is disabled"
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exit 0
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fi
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}
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# Usage of this utility
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usage() {
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echo "Usage:"
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echo " - To enable Scandump mode"
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echo " $(basename "$0") enable"
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echo " - To disable Scandump mode"
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echo " $(basename "$0") disable"
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echo " - To get Scandump mode status"
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echo " $(basename "$0") getstatus"
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exit 0
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}
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if [[ $1 == "enable" ]]; then
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enable_scandump_mode
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elif [[ $1 == "disable" ]]; then
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diable_scandump_mode
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elif [[ $1 == "getstatus" ]]; then
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getstatus
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else
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echo "Invalid mode"
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usage
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fi
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exit 0
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