dracut/modules.d/90ppcmac/load-thermal.sh

#!/bin/sh
#
# This hook attempts to load the appropriate thermal modules
# for PowerPC Macs depending on the specific machine you have.

[ -r /proc/cpuinfo ] || exit 0

load_windfarm() {
    local pm_model
    pm_model="$(sed -n '/model/p' /proc/cpuinfo)"
    pm_model="${pm_model##*: }"

    # load quietly and respect the blacklist
    # this way if the modules are for some reason missing, it will
    # still exit successfully and not affect the boot process
    case "$pm_model" in
        PowerMac3,6) modprobe -b -q therm_windtunnel ;;
        PowerMac7,2 | PowerMac7,3) modprobe -b -q windfarm_pm72 ;;
        PowerMac8,1 | PowerMac8,2) modprobe -b -q windfarm_pm81 ;;
        PowerMac9,1) modprobe -b -q windfarm_pm91 ;;
        PowerMac11,2) modprobe -b -q windfarm_pm112 ;;
        PowerMac12,1) modprobe -b -q windfarm_pm121 ;;
        RackMac3,1) modprobe -b -q windfarm_rm31 ;;
        *) ;;
    esac

    return 0
}

load_windfarm