[后板]优化启动脚本和驱动加载，加快启动速度

target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/files/pseudo_init

@@ -142,6 +142,64 @@ mount_usr(){
 
 }
 
+rc_mount_filesystem()
+{
+	local fs_src="$1"
+	local fs_mntpt="$2"
+	# mount filesystem
+	if [ -e "$fs_src" -a -d "$fs_mntpt" ]; then
+		[ -L "$fs_src" ] && fs_src=$(readlink "$fs_src")
+		case "$fs_src" in
+			/dev/mtdblock*)
+				mount -t jffs2 "$fs_src" "$fs_mntpt" 2>/dev/null
+				if [ "$?" -ne "0" ]; then
+					mkfs_jffs2 "$fs_src"
+					mount -t jffs2 "$fs_src" "$fs_mntpt" 2>/dev/null
+				fi
+				;;
+			/dev/ubi*)
+				mount -t ubifs "$fs_src" "$fs_mntpt" 2>/dev/null
+				if [ "$?" -ne "0" ]; then
+					mkfs_ubifs "$fs_src"
+					mount -t ubifs "$fs_src" "$fs_mntpt" 2>/dev/null
+				fi
+				;;
+			*)
+				/usr/sbin/fsck.ext4 -y "$fs_src" &>/dev/null
+				mount -t ext4 "$fs_src" "$fs_mntpt" 2>/dev/null
+				if [ "$?" -ne "0" ]; then
+					# linux < 3.18 not support metadata_csum, e2fsprogs version:1.46.4
+					grep "Linux version 3.*" /proc/version >> /dev/null
+					if [ $? -eq 0 ]; then
+						echo "linux < 3.18, mkfs.ext4 do not use metadata and journal checksum features."
+						mkfs.ext4 -m 0 -O ^metadata_csum "$fs_src" >/dev/null
+					else
+						mkfs.ext4 -m 0 "$fs_src" >/dev/null
+					fi
+					mount -t ext4 "$fs_src" "$fs_mntpt" 2>/dev/null
+				fi
+				;;
+		esac
+
+		# restore /mnt file contexts
+		if [ -f /sbin/restorecon ]; then
+			/sbin/restorecon -R /mnt
+		fi
+	fi
+}
+
+rc_mount()
+{
+	rc_mount_filesystem "/dev/by-name/UDISK" "/mnt/UDISK"
+# 	rc_mount_filesystem "/dev/by-name/user-res" "/mnt/user"
+
+	# enable hotplug
+	[ -x /sbin/mdev ] && {
+		[ -f /proc/sys/kernel/hotplug ] && echo /sbin/mdev > /proc/sys/kernel/hotplug
+		/sbin/mdev -s
+	}
+}
+
 mount_sec_storage(){
 	[ -e /dev/by-name/sec_storage ] || return
 
@@ -517,6 +575,17 @@ mount_usr
 [ x"$MOUNT_OVERLAY" = x"1" ] && mount_overlay rootfs_data	#choose rootfs_data or UDISK
 mount_app
 
+MODULES_DIR="/lib/modules/`uname -r`"
+rc_mount
+insmod $MODULES_DIR/xr806.ko
+insmod $MODULES_DIR/gpio_keys.ko
+/etc/init.d/S50wifidaemon start &
+# insmod $MODULES_DIR/disp.ko # loaded by kernel
+insmod $MODULES_DIR/sunxi_gpadc.ko
+/etc/init.d/S00mpp start # snd should be loaded before app
+/APP/SL100BACKPANEL &
+insmod $MODULES_DIR/evdev.ko
+insmod $MODULES_DIR/cst9220.ko
 #hardcode but fast
 #mount_etc_hardcode
 #set_parts_by_name_hardcode