init

RM520N-5G/文件/configs/90-pcie_mhi.txt

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+pcie_mhi mhi_mbim_enabled=1

RM520N-5G/文件/configs/init.d_modem5g

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+#!/bin/sh /etc/rc.common
+# RM520N-GL PCIe MBIM 拨号自启 (2026-08-19)
+# 依赖: /etc/rc.local 的 mhi_q 绑定修复先跑, /dev/mhi_MBIM 出现后拨号
+START=95
+STOP=15
+
+start() {
+    echo "modem5g: 等待 /dev/mhi_MBIM ..."
+    local i=0
+    while [ $i -lt 30 ]; do
+        [ -c /dev/mhi_MBIM ] && break
+        sleep 2
+        i=$((i+1))
+    done
+    if [ ! -c /dev/mhi_MBIM ]; then
+        echo "modem5g: /dev/mhi_MBIM 未出现, 放弃拨号"
+        return 1
+    fi
+    echo "modem5g: 开始 MBIM 拨号 (wonet)"
+    start-stop-daemon -S -b -m -p /var/run/quectel_cm.pid \
+        -x /usr/bin/quectel-CM -- -s wonet -f /tmp/quectel_cm.log
+    echo "modem5g: 已启动 quectel-CM"
+}
+
+stop() {
+    echo "modem5g: 停止拨号"
+    start-stop-daemon -K -p /var/run/quectel_cm.pid 2>/dev/null
+    return 0
+}

RM520N-5G/文件/configs/modem_config.txt

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+
+config global 'global'
+	option enable_dial '1'
+	option modem_number '1'
+	option usb_scan '1'
+	option pci_scan '1'
+	option manual_configuration '1'
+	option network_interface_alias '1'
+
+config modem-device 'modem0'
+	option data_interface 'pci'
+	option path '/sys/devices/pci0000:00/0000:00:0a.0'
+	option driver 'driver'
+	option name 'qualcomm modem'
+	option manufacturer 'quectel'
+	option define_connect '1'
+	option platform 'quectel'
+	list modes 'qmi'
+	list modes 'gobinet'
+	list modes 'ecm'
+	list modes 'mbim'
+	list modes 'rndis'
+	list modes 'ncm'
+	option at_port '/dev/mhi_DUN'
+

RM520N-5G/文件/configs/rc.local

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+# Put your custom commands here that should be executed once
+# the system init finished. By default this file does nothing.
+
+# ===== RM520N-GL 说明 (2026-08-20 更新) =====
+# pcie_mhi 驱动由 /etc/modules.d/90-pcie_mhi 开机自动加载(mhi_mbim_enabled=1)。
+# 原生流程即可自启拨号(S95modem5g 等待 /dev/mhi_MBIM 后起 quectel-CM)。
+# 无需在此手动 bind mhi_q —— 手动强绑会抢设备导致 pcie_mhi 失联(SYS_ERR)。
+# 开机自启链路: 90-pcie_mhi(驱动) -> S95modem5g(拨号) -> S96wan5g-route(策略路由+NAT)
+# 诊断: dmesg | grep -iE "mhi|pcie_mhi"; ls /dev/mhi_*
+# 故障处理: 若模块失联且无 /dev/mhi_DUN, 先飞牛断电重启; 若无效再手动:
+#   echo 0000:00:0a.0 > /sys/bus/pci/drivers/mhi_q/bind  # 唤醒(临时)
+exit 0