RockPro64 trigger PCIe probe

99-rockchip-pcie.rules

# FILE: /etc/udev/rules.d/99-rockchip-pcie.rules
# Trigger Rockchip PCIe probe
ACTION=="add", KERNEL=="f8000000.pcie", SUBSYSTEM=="platform", RUN+="/usr/local/sbin/rockpro64_pcie_probe.sh"

rockpro64_pcie_probe.sh

#!/bin/bash
# FILE: /usr/local/sbin/rockpro64_pcie_probe.sh

PROBE_TRIGGER=/sys/devices/platform/f8000000.pcie/pcie_deferred

if [ ! -f ${PROBE_TRIGGER} ]; then
    echo "Missing PCIe probe trigger file: ${PROBE_TRIGGER}"
    echo "Your kernel may not support userspace triggered PCIe probe."
    exit 1
fi

if [[ $EUID -ne 0 ]]; then
    echo "This script must be run as root"
    exit 1
fi

echo "1" > ${PROBE_TRIGGER}