网口默认up

source_sync_rls_25c/layers/meta-unisoc/recipes-core/init-ifupdown/init-ifupdown/init_networking

@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/sh
 ### BEGIN INIT INFO
 # Provides:          networking
 # Required-Start:    mountvirtfs $local_fs
@@ -56,21 +56,25 @@ check_network_swap() {
 }
 
 start_eth0_dhcp() {
-    local retry=0
-
-    while [ ! -d /sys/class/net/eth0 ] && [ $retry -lt 10 ]; do
-	sleep 1
-	retry=$((retry + 1))
-    done
-
-    [ -d /sys/class/net/eth0 ] || return 0
-
-    ip link set eth0 up 2>/dev/null || ifconfig eth0 up 2>/dev/null || true
-
-    if command -v udhcpc >/dev/null 2>&1 &&
-       ! ps | grep "[u]dhcpc .*eth0" >/dev/null 2>&1; then
-	udhcpc -i eth0 -b -R >/dev/null 2>&1 &
-    fi
+    # eth0 and netcond are initialized asynchronously on this platform.
+    # Keep reasserting the link state during late boot so a delayed driver
+    # probe or netcond cannot leave the interface down.  Addressing remains
+    # dynamic and is handled by udhcpc.
+    (
+	retry=0
+	while [ $retry -lt 60 ]; do
+	    if [ -d /sys/class/net/eth0 ]; then
+		ip link set eth0 up >/dev/null 2>&1 || \
+		    ifconfig eth0 up >/dev/null 2>&1 || true
+		if command -v udhcpc >/dev/null 2>&1 &&
+		   ! ps | grep "[u]dhcpc .*eth0" >/dev/null 2>&1; then
+		    udhcpc -i eth0 -b -R >/dev/null 2>&1 &
+		fi
+	    fi
+	    retry=$((retry + 1))
+	    sleep 2
+	done
+    ) &
 }
 
 case "$1" in